diff options
124 files changed, 4775 insertions, 960 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0549662..b24108f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -854,7 +854,7 @@ The filter can be disabled or changed to another driver later using sysfs. - drm_kms_helper.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>] + drm.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>] Broken monitors, graphic adapters, KVMs and EDIDless panels may send no or incorrect EDID data sets. This parameter allows to specify an EDID data sets diff --git a/Documentation/devicetree/bindings/display/faraday,tve200.txt b/Documentation/devicetree/bindings/display/faraday,tve200.txt new file mode 100644 index 0000000..82e3bc0 --- /dev/null +++ b/Documentation/devicetree/bindings/display/faraday,tve200.txt @@ -0,0 +1,54 @@ +* Faraday TV Encoder TVE200 + +Required properties: + +- compatible: must be one of: + "faraday,tve200" + "cortina,gemini-tvc", "faraday,tve200" + +- reg: base address and size of the control registers block + +- interrupts: contains an interrupt specifier for the interrupt + line from the TVE200 + +- clock-names: should contain "PCLK" for the clock line clocking the + silicon and "TVE" for the 27MHz clock to the video driver + +- clocks: contains phandle and clock specifier pairs for the entries + in the clock-names property. See + Documentation/devicetree/bindings/clock/clock-bindings.txt + +Optional properties: + +- resets: contains the reset line phandle for the block + +Required sub-nodes: + +- port: describes LCD panel signals, following the common binding + for video transmitter interfaces; see + Documentation/devicetree/bindings/media/video-interfaces.txt + This port should have the properties: + reg = <0>; + It should have one endpoint connected to a remote endpoint where + the display is connected. + +Example: + +display-controller@6a000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "faraday,tve200"; + reg = <0x6a000000 0x1000>; + interrupts = <13 IRQ_TYPE_EDGE_RISING>; + resets = <&syscon GEMINI_RESET_TVC>; + clocks = <&syscon GEMINI_CLK_GATE_TVC>, + <&syscon GEMINI_CLK_TVC>; + clock-names = "PCLK", "TVE"; + + port@0 { + reg = <0>; + display_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; +}; diff --git a/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt new file mode 100644 index 0000000..6862028 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt @@ -0,0 +1,21 @@ +Orise Tech OTM8009A 3.97" 480x800 TFT LCD panel (MIPI-DSI video mode) + +The Orise Tech OTM8009A is a 3.97" 480x800 TFT LCD panel connected using +a MIPI-DSI video interface. Its backlight is managed through the DSI link. + +Required properties: + - compatible: "orisetech,otm8009a" + - reg: the virtual channel number of a DSI peripheral + +Optional properties: + - reset-gpios: a GPIO spec for the reset pin (active low). + +Example: +&dsi { + ... + panel@0 { + compatible = "orisetech,otm8009a"; + reg = <0>; + reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>; + }; +}; diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt new file mode 100644 index 0000000..3f1a839 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e63j0x03.txt @@ -0,0 +1,24 @@ +Samsung S6E63J0X03 1.63" 320x320 AMOLED panel (interface: MIPI-DSI command mode) + +Required properties: + - compatible: "samsung,s6e63j0x03" + - reg: the virtual channel number of a DSI peripheral + - vdd3-supply: I/O voltage supply + - vci-supply: voltage supply for analog circuits + - reset-gpios: a GPIO spec for the reset pin (active low) + - te-gpios: a GPIO spec for the tearing effect synchronization signal + gpio pin (active high) + +Example: +&dsi { + ... + + panel@0 { + compatible = "samsung,s6e63j0x03"; + reg = <0>; + vdd3-supply = <&ldo16_reg>; + vci-supply = <&ldo20_reg>; + reset-gpios = <&gpe0 1 GPIO_ACTIVE_LOW>; + te-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>; + }; +}; diff --git a/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt new file mode 100644 index 0000000..aae57ef --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/seiko,43wvf1g.txt @@ -0,0 +1,23 @@ +Seiko Instruments Inc. 4.3" WVGA (800 x RGB x 480) TFT with Touch-Panel + +Required properties: +- compatible: should be "sii,43wvf1g". +- "dvdd-supply": 3v3 digital regulator. +- "avdd-supply": 5v analog regulator. + +Optional properties: +- backlight: phandle for the backlight control. + +Example: + + panel { + compatible = "sii,43wvf1g"; + backlight = <&backlight_display>; + dvdd-supply = <®_lcd_3v3>; + avdd-supply = <®_lcd_5v>; + port { + panel_in: endpoint { + remote-endpoint = <&display_out>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt new file mode 100644 index 0000000..da6939e --- /dev/null +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt @@ -0,0 +1,99 @@ +Rockchip RK3288 LVDS interface +================================ + +Required properties: +- compatible: matching the soc type, one of + - "rockchip,rk3288-lvds"; + +- reg: physical base address of the controller and length + of memory mapped region. +- clocks: must include clock specifiers corresponding to entries in the + clock-names property. +- clock-names: must contain "pclk_lvds" + +- avdd1v0-supply: regulator phandle for 1.0V analog power +- avdd1v8-supply: regulator phandle for 1.8V analog power +- avdd3v3-supply: regulator phandle for 3.3V analog power + +- rockchip,grf: phandle to the general register files syscon +- rockchip,output: "rgb", "lvds" or "duallvds", This describes the output interface + +Optional properties: +- pinctrl-names: must contain a "lcdc" entry. +- pinctrl-0: pin control group to be used for this controller. + +Required nodes: + +The lvds has two video ports as described by + Documentation/devicetree/bindings/media/video-interfaces.txt +Their connections are modeled using the OF graph bindings specified in + Documentation/devicetree/bindings/graph.txt. + +- video port 0 for the VOP input, the remote endpoint maybe vopb or vopl +- video port 1 for either a panel or subsequent encoder + +the lvds panel described by + Documentation/devicetree/bindings/display/panel/simple-panel.txt + +Panel required properties: +- ports for remote LVDS output + +Panel optional properties: +- data-mapping: should be "vesa-24","jeida-24" or "jeida-18". +This describes decribed by: + Documentation/devicetree/bindings/display/panel/panel-lvds.txt + +Example: + +lvds_panel: lvds-panel { + compatible = "auo,b101ean01"; + enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>; + data-mapping = "jeida-24"; + + ports { + panel_in_lvds: endpoint { + remote-endpoint = <&lvds_out_panel>; + }; + }; +}; + +For Rockchip RK3288: + + lvds: lvds@ff96c000 { + compatible = "rockchip,rk3288-lvds"; + rockchip,grf = <&grf>; + reg = <0xff96c000 0x4000>; + clocks = <&cru PCLK_LVDS_PHY>; + clock-names = "pclk_lvds"; + pinctrl-names = "lcdc"; + pinctrl-0 = <&lcdc_ctl>; + avdd1v0-supply = <&vdd10_lcd>; + avdd1v8-supply = <&vcc18_lcd>; + avdd3v3-supply = <&vcca_33>; + rockchip,output = "rgb"; + ports { + #address-cells = <1>; + #size-cells = <0>; + + lvds_in: port@0 { + reg = <0>; + + lvds_in_vopb: endpoint@0 { + reg = <0>; + remote-endpoint = <&vopb_out_lvds>; + }; + lvds_in_vopl: endpoint@1 { + reg = <1>; + remote-endpoint = <&vopl_out_lvds>; + }; + }; + + lvds_out: port@1 { + reg = <1>; + + lvds_out_panel: endpoint { + remote-endpoint = <&panel_in_lvds>; + }; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1afd298..6cf1dc5 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -248,6 +248,7 @@ ontat On Tat Industrial Company opencores OpenCores.org option Option NV ORCL Oracle Corporation +orisetech Orise Technology ortustech Ortus Technology Co., Ltd. ovti OmniVision Technologies oxsemi Oxford Semiconductor, Ltd. diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst index 679373b..a2214cc 100644 --- a/Documentation/gpu/drm-uapi.rst +++ b/Documentation/gpu/drm-uapi.rst @@ -168,6 +168,61 @@ IOCTL Support on Device Nodes .. kernel-doc:: drivers/gpu/drm/drm_ioctl.c :doc: driver specific ioctls +Recommended IOCTL Return Values +------------------------------- + +In theory a driver's IOCTL callback is only allowed to return very few error +codes. In practice it's good to abuse a few more. This section documents common +practice within the DRM subsystem: + +ENOENT: + Strictly this should only be used when a file doesn't exist e.g. when + calling the open() syscall. We reuse that to signal any kind of object + lookup failure, e.g. for unknown GEM buffer object handles, unknown KMS + object handles and similar cases. + +ENOSPC: + Some drivers use this to differentiate "out of kernel memory" from "out + of VRAM". Sometimes also applies to other limited gpu resources used for + rendering (e.g. when you have a special limited compression buffer). + Sometimes resource allocation/reservation issues in command submission + IOCTLs are also signalled through EDEADLK. + + Simply running out of kernel/system memory is signalled through ENOMEM. + +EPERM/EACCESS: + Returned for an operation that is valid, but needs more privileges. + E.g. root-only or much more common, DRM master-only operations return + this when when called by unpriviledged clients. There's no clear + difference between EACCESS and EPERM. + +ENODEV: + Feature (like PRIME, modesetting, GEM) is not supported by the driver. + +ENXIO: + Remote failure, either a hardware transaction (like i2c), but also used + when the exporting driver of a shared dma-buf or fence doesn't support a + feature needed. + +EINTR: + DRM drivers assume that userspace restarts all IOCTLs. Any DRM IOCTL can + return EINTR and in such a case should be restarted with the IOCTL + parameters left unchanged. + +EIO: + The GPU died and couldn't be resurrected through a reset. Modesetting + hardware failures are signalled through the "link status" connector + property. + +EINVAL: + Catch-all for anything that is an invalid argument combination which + cannot work. + +IOCTL also use other error codes like ETIME, EFAULT, EBUSY, ENOTTY but their +usage is in line with the common meanings. The above list tries to just document +DRM specific patterns. Note that ENOTTY has the slightly unintuitive meaning of +"this IOCTL does not exist", and is used exactly as such in DRM. + .. kernel-doc:: include/drm/drm_ioctl.h :internal: diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst index 35d673b..c36586da 100644 --- a/Documentation/gpu/index.rst +++ b/Documentation/gpu/index.rst @@ -15,6 +15,7 @@ Linux GPU Driver Developer's Guide pl111 tegra tinydrm + tve200 vc4 vga-switcheroo vgaarbiter diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 22af55d..de9512a 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -75,17 +75,6 @@ helpers. Contact: Ville Syrjälä, Daniel Vetter, driver maintainers -Implement deferred fbdev setup in the helper --------------------------------------------- - -Many (especially embedded drivers) want to delay fbdev setup until there's a -real screen plugged in. This is to avoid the dreaded fallback to the low-res -fbdev default. Many drivers have a hacked-up (and often broken) version of this, -better to do it once in the shared helpers. Thierry has a patch series, but that -one needs to be rebased and final polish applied. - -Contact: Thierry Reding, Daniel Vetter, driver maintainers - Convert early atomic drivers to async commit helpers ---------------------------------------------------- @@ -138,6 +127,8 @@ interfaces to fix these issues: the acquire context explicitly on stack and then also pass it down into drivers explicitly so that the legacy-on-atomic functions can use them. + Except for some driver code this is done. + * A bunch of the vtable hooks are now in the wrong place: DRM has a split between core vfunc tables (named ``drm_foo_funcs``), which are used to implement the userspace ABI. And then there's the optional hooks for the @@ -151,6 +142,8 @@ interfaces to fix these issues: connector at runtime. That's almost all of them, and would allow us to get rid of a lot of ``best_encoder`` boilerplate in drivers. + This was almost done, but new drivers added a few more cases again. + Contact: Daniel Vetter Get rid of dev->struct_mutex from GEM drivers @@ -177,6 +170,17 @@ following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and Contact: Daniel Vetter, respective driver maintainers +Convert instances of dev_info/dev_err/dev_warn to their DRM_DEV_* equivalent +---------------------------------------------------------------------------- + +For drivers which could have multiple instances, it is necessary to +differentiate between which is which in the logs. Since DRM_INFO/WARN/ERROR +don't do this, drivers used dev_info/warn/err to make this differentiation. We +now have DRM_DEV_* variants of the drm print macros, so we can start to convert +those drivers back to using drm-formwatted specific log messages. + +Contact: Sean Paul, Maintainer of the driver you plan to convert + Core refactorings ================= diff --git a/Documentation/gpu/tve200.rst b/Documentation/gpu/tve200.rst new file mode 100644 index 0000000..69b17b3 --- /dev/null +++ b/Documentation/gpu/tve200.rst @@ -0,0 +1,6 @@ +================================== + drm/tve200 Faraday TV Encoder 200 +================================== + +.. kernel-doc:: drivers/gpu/drm/tve200/tve200_drv.c + :doc: Faraday TV Encoder 200 diff --git a/MAINTAINERS b/MAINTAINERS index 6671f37..7ab4c37 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4366,6 +4366,12 @@ T: git git://anongit.freedesktop.org/drm/drm-misc S: Maintained F: drivers/gpu/drm/bochs/ +DRM DRIVER FOR FARADAY TVE200 TV ENCODER +M: Linus Walleij <linus.walleij@linaro.org> +T: git git://anongit.freedesktop.org/drm/drm-misc +S: Maintained +F: drivers/gpu/drm/tve200/ + DRM DRIVER FOR INTEL I810 VIDEO CARDS S: Orphan / Obsolete F: drivers/gpu/drm/i810/ @@ -4509,7 +4515,7 @@ L: dri-devel@lists.freedesktop.org S: Supported F: drivers/gpu/drm/sun4i/ F: Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt -T: git git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux.git +T: git git://anongit.freedesktop.org/drm/drm-misc DRM DRIVERS FOR AMLOGIC SOCS M: Neil Armstrong <narmstrong@baylibre.com> @@ -4693,7 +4699,7 @@ T: git git://anongit.freedesktop.org/drm/drm-misc DRM PANEL DRIVERS M: Thierry Reding <thierry.reding@gmail.com> L: dri-devel@lists.freedesktop.org -T: git git://anongit.freedesktop.org/tegra/linux.git +T: git git://anongit.freedesktop.org/drm/drm-misc S: Maintained F: drivers/gpu/drm/drm_panel.c F: drivers/gpu/drm/panel/ diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c index 38cc738..24f83f9 100644 --- a/drivers/dma-buf/sw_sync.c +++ b/drivers/dma-buf/sw_sync.c @@ -321,8 +321,16 @@ static int sw_sync_debugfs_open(struct inode *inode, struct file *file) static int sw_sync_debugfs_release(struct inode *inode, struct file *file) { struct sync_timeline *obj = file->private_data; + struct sync_pt *pt, *next; + + spin_lock_irq(&obj->lock); + + list_for_each_entry_safe(pt, next, &obj->pt_list, link) { + dma_fence_set_error(&pt->base, -ENOENT); + dma_fence_signal_locked(&pt->base); + } - smp_wmb(); + spin_unlock_irq(&obj->lock); sync_timeline_put(obj); return 0; diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 83cb2a8..c9f09fc 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -110,7 +110,7 @@ config DRM_FBDEV_OVERALLOC config DRM_LOAD_EDID_FIRMWARE bool "Allow to specify an EDID data set instead of probing for it" - depends on DRM_KMS_HELPER + depends on DRM help Say Y here, if you want to use EDID data to be loaded from the /lib/firmware directory or one of the provided built-in @@ -278,6 +278,8 @@ source "drivers/gpu/drm/tinydrm/Kconfig" source "drivers/gpu/drm/pl111/Kconfig" +source "drivers/gpu/drm/tve200/Kconfig" + # Keep legacy drivers last menuconfig DRM_LEGACY diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index a8acc19..0ee184f 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -28,6 +28,7 @@ drm-$(CONFIG_DRM_PANEL) += drm_panel.o drm-$(CONFIG_OF) += drm_of.o drm-$(CONFIG_AGP) += drm_agpsupport.o drm-$(CONFIG_DEBUG_FS) += drm_debugfs.o drm_debugfs_crc.o +drm-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \ drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o \ @@ -36,7 +37,6 @@ drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \ drm_scdc_helper.o drm_gem_framebuffer_helper.o drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o -drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o drm_kms_helper-$(CONFIG_DRM_KMS_CMA_HELPER) += drm_fb_cma_helper.o drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o @@ -44,8 +44,6 @@ drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o obj-$(CONFIG_DRM_DEBUG_MM_SELFTEST) += selftests/ -CFLAGS_drm_trace_points.o := -I$(src) - obj-$(CONFIG_DRM) += drm.o obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o obj-$(CONFIG_DRM_ARM) += arm/ @@ -100,3 +98,4 @@ obj-$(CONFIG_DRM_ZTE) += zte/ obj-$(CONFIG_DRM_MXSFB) += mxsfb/ obj-$(CONFIG_DRM_TINYDRM) += tinydrm/ obj-$(CONFIG_DRM_PL111) += pl111/ +obj-$(CONFIG_DRM_TVE200) += tve200/ diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c index 289eda5..074fd4e 100644 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ b/drivers/gpu/drm/arc/arcpgu_drv.c @@ -18,6 +18,7 @@ #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_atomic_helper.h> #include <linux/of_reserved_mem.h> @@ -32,7 +33,7 @@ static void arcpgu_fb_output_poll_changed(struct drm_device *dev) } static const struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = arcpgu_fb_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c index f9bda7b..764d0c8 100644 --- a/drivers/gpu/drm/arm/hdlcd_drv.c +++ b/drivers/gpu/drm/arm/hdlcd_drv.c @@ -25,6 +25,7 @@ #include <drm/drm_fb_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_of.h> #include "hdlcd_drv.h" @@ -106,7 +107,7 @@ static void hdlcd_fb_output_poll_changed(struct drm_device *drm) } static const struct drm_mode_config_funcs hdlcd_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = hdlcd_fb_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 1a57cc2..b894466 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -26,6 +26,7 @@ #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_of.h> #include "malidp_drv.h" @@ -249,7 +250,7 @@ static const struct drm_mode_config_helper_funcs malidp_mode_config_helpers = { }; static const struct drm_mode_config_funcs malidp_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = malidp_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/armada/Makefile b/drivers/gpu/drm/armada/Makefile index 64c0b45..a18f156 100644 --- a/drivers/gpu/drm/armada/Makefile +++ b/drivers/gpu/drm/armada/Makefile @@ -4,5 +4,3 @@ armada-y += armada_510.o armada-$(CONFIG_DEBUG_FS) += armada_debugfs.o obj-$(CONFIG_DRM_ARMADA) := armada.o - -CFLAGS_armada_trace.o := -I$(src) diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c index 0b3227c..2fbd9d3 100644 --- a/drivers/gpu/drm/armada/armada_drv.c +++ b/drivers/gpu/drm/armada/armada_drv.c @@ -70,8 +70,6 @@ static struct drm_driver armada_drm_driver = { .gem_prime_export = armada_gem_prime_export, .gem_prime_import = armada_gem_prime_import, .dumb_create = armada_gem_dumb_create, - .dumb_map_offset = armada_gem_dumb_map_offset, - .dumb_destroy = armada_gem_dumb_destroy, .gem_vm_ops = &armada_gem_vm_ops, .major = 1, .minor = 0, diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c index a76ca21..7983538 100644 --- a/drivers/gpu/drm/armada/armada_gem.c +++ b/drivers/gpu/drm/armada/armada_gem.c @@ -270,42 +270,6 @@ int armada_gem_dumb_create(struct drm_file *file, struct drm_device *dev, return ret; } -int armada_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, - uint32_t handle, uint64_t *offset) -{ - struct armada_gem_object *obj; - int ret = 0; - - obj = armada_gem_object_lookup(file, handle); - if (!obj) { - DRM_ERROR("failed to lookup gem object\n"); - return -EINVAL; - } - - /* Don't allow imported objects to be mapped */ - if (obj->obj.import_attach) { - ret = -EINVAL; - goto err_unref; - } - - ret = drm_gem_create_mmap_offset(&obj->obj); - if (ret == 0) { - *offset = drm_vma_node_offset_addr(&obj->obj.vma_node); - DRM_DEBUG_DRIVER("handle %#x offset %llx\n", handle, *offset); - } - - err_unref: - drm_gem_object_unreference_unlocked(&obj->obj); - - return ret; -} - -int armada_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev, - uint32_t handle) -{ - return drm_gem_handle_delete(file, handle); -} - /* Private driver gem ioctls */ int armada_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file) diff --git a/drivers/gpu/drm/armada/armada_gem.h b/drivers/gpu/drm/armada/armada_gem.h index 6e524e0..1ac9079 100644 --- a/drivers/gpu/drm/armada/armada_gem.h +++ b/drivers/gpu/drm/armada/armada_gem.h @@ -35,10 +35,6 @@ struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *, size_t); int armada_gem_dumb_create(struct drm_file *, struct drm_device *, struct drm_mode_create_dumb *); -int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *, - uint32_t, uint64_t *); -int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *, - uint32_t); struct dma_buf *armada_gem_prime_export(struct drm_device *dev, struct drm_gem_object *obj, int flags); struct drm_gem_object *armada_gem_prime_import(struct drm_device *, diff --git a/drivers/gpu/drm/armada/armada_trace.h b/drivers/gpu/drm/armada/armada_trace.h index dc0cba7..be245a2 100644 --- a/drivers/gpu/drm/armada/armada_trace.h +++ b/drivers/gpu/drm/armada/armada_trace.h @@ -62,5 +62,5 @@ TRACE_EVENT(armada_ovl_plane_work, /* This part must be outside protection */ #undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/armada #include <trace/define_trace.h> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index 74d66e1..c6e8061 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -458,7 +458,7 @@ static irqreturn_t atmel_hlcdc_dc_irq_handler(int irq, void *data) static struct drm_framebuffer *atmel_hlcdc_fb_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) { - return drm_fb_cma_create(dev, file_priv, mode_cmd); + return drm_gem_fb_create(dev, file_priv, mode_cmd); } static void atmel_hlcdc_fb_output_poll_changed(struct drm_device *dev) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h index 4237b04..6833ee2 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h @@ -34,6 +34,7 @@ #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_panel.h> #include <drm/drm_plane_helper.h> #include <drm/drmP.h> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h index fe18a5d..12ef2d8 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h @@ -328,8 +328,6 @@ struct adv7511 { enum adv7511_sync_polarity hsync_polarity; bool rgb; - struct edid *edid; - struct gpio_desc *gpio_pd; struct regulator_bulk_data *supplies; diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c index 67469c2..1b4783d 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c @@ -210,7 +210,7 @@ static const struct hdmi_codec_ops adv7511_codec_ops = { .get_dai_id = adv7511_hdmi_i2s_get_dai_id, }; -static struct hdmi_codec_pdata codec_data = { +static const struct hdmi_codec_pdata codec_data = { .ops = &adv7511_codec_ops, .max_i2s_channels = 2, .i2s = 1, diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index b2431ae..bd7dbae 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -199,17 +199,14 @@ static const uint16_t adv7511_csc_ycbcr_to_rgb[] = { static void adv7511_set_config_csc(struct adv7511 *adv7511, struct drm_connector *connector, - bool rgb) + bool rgb, bool hdmi_mode) { struct adv7511_video_config config; bool output_format_422, output_format_ycbcr; unsigned int mode; uint8_t infoframe[17]; - if (adv7511->edid) - config.hdmi_mode = drm_detect_hdmi_monitor(adv7511->edid); - else - config.hdmi_mode = false; + config.hdmi_mode = hdmi_mode; hdmi_avi_infoframe_init(&config.avi_infoframe); @@ -589,15 +586,14 @@ static int adv7511_get_modes(struct adv7511 *adv7511, if (!adv7511->powered) __adv7511_power_off(adv7511); - kfree(adv7511->edid); - adv7511->edid = edid; - if (!edid) - return 0; drm_mode_connector_update_edid_property(connector, edid); count = drm_add_edid_modes(connector, edid); - adv7511_set_config_csc(adv7511, connector, adv7511->rgb); + adv7511_set_config_csc(adv7511, connector, adv7511->rgb, + drm_detect_hdmi_monitor(edid)); + + kfree(edid); return count; } @@ -833,7 +829,11 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge) return -ENODEV; } - adv->connector.polled = DRM_CONNECTOR_POLL_HPD; + if (adv->i2c_main->irq) + adv->connector.polled = DRM_CONNECTOR_POLL_HPD; + else + adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; ret = drm_connector_init(bridge->dev, &adv->connector, &adv7511_connector_funcs, @@ -1158,8 +1158,6 @@ static int adv7511_remove(struct i2c_client *i2c) i2c_unregister_device(adv7511->i2c_edid); - kfree(adv7511->edid); - return 0; } diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index 63c7a01..f4f633a 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -30,19 +30,20 @@ #include <video/mipi_display.h> #define DSI_VERSION 0x00 + #define DSI_PWR_UP 0x04 #define RESET 0 #define POWERUP BIT(0) #define DSI_CLKMGR_CFG 0x08 -#define TO_CLK_DIVIDSION(div) (((div) & 0xff) << 8) -#define TX_ESC_CLK_DIVIDSION(div) (((div) & 0xff) << 0) +#define TO_CLK_DIVISION(div) (((div) & 0xff) << 8) +#define TX_ESC_CLK_DIVISION(div) ((div) & 0xff) #define DSI_DPI_VCID 0x0c -#define DPI_VID(vid) (((vid) & 0x3) << 0) +#define DPI_VCID(vcid) ((vcid) & 0x3) #define DSI_DPI_COLOR_CODING 0x10 -#define EN18_LOOSELY BIT(8) +#define LOOSELY18_EN BIT(8) #define DPI_COLOR_CODING_16BIT_1 0x0 #define DPI_COLOR_CODING_16BIT_2 0x1 #define DPI_COLOR_CODING_16BIT_3 0x2 @@ -61,22 +62,25 @@ #define OUTVACT_LPCMD_TIME(p) (((p) & 0xff) << 16) #define INVACT_LPCMD_TIME(p) ((p) & 0xff) +#define DSI_DBI_VCID 0x1c #define DSI_DBI_CFG 0x20 +#define DSI_DBI_PARTITIONING_EN 0x24 #define DSI_DBI_CMDSIZE 0x28 #define DSI_PCKHDL_CFG 0x2c -#define EN_CRC_RX BIT(4) -#define EN_ECC_RX BIT(3) -#define EN_BTA BIT(2) -#define EN_EOTP_RX BIT(1) -#define EN_EOTP_TX BIT(0) +#define CRC_RX_EN BIT(4) +#define ECC_RX_EN BIT(3) +#define BTA_EN BIT(2) +#define EOTP_RX_EN BIT(1) +#define EOTP_TX_EN BIT(0) + +#define DSI_GEN_VCID 0x30 #define DSI_MODE_CFG 0x34 #define ENABLE_VIDEO_MODE 0 #define ENABLE_CMD_MODE BIT(0) #define DSI_VID_MODE_CFG 0x38 -#define FRAME_BTA_ACK BIT(14) #define ENABLE_LOW_POWER (0x3f << 8) #define ENABLE_LOW_POWER_MASK (0x3f << 8) #define VID_MODE_TYPE_NON_BURST_SYNC_PULSES 0x0 @@ -85,8 +89,13 @@ #define VID_MODE_TYPE_MASK 0x3 #define DSI_VID_PKT_SIZE 0x3c -#define VID_PKT_SIZE(p) (((p) & 0x3fff) << 0) -#define VID_PKT_MAX_SIZE 0x3fff +#define VID_PKT_SIZE(p) ((p) & 0x3fff) + +#define DSI_VID_NUM_CHUNKS 0x40 +#define VID_NUM_CHUNKS(c) ((c) & 0x1fff) + +#define DSI_VID_NULL_SIZE 0x44 +#define VID_NULL_SIZE(b) ((b) & 0x1fff) #define DSI_VID_HSA_TIME 0x48 #define DSI_VID_HBP_TIME 0x4c @@ -95,6 +104,8 @@ #define DSI_VID_VBP_LINES 0x58 #define DSI_VID_VFP_LINES 0x5c #define DSI_VID_VACTIVE_LINES 0x60 +#define DSI_EDPI_CMD_SIZE 0x64 + #define DSI_CMD_MODE_CFG 0x68 #define MAX_RD_PKT_SIZE_LP BIT(24) #define DCS_LW_TX_LP BIT(19) @@ -108,8 +119,8 @@ #define GEN_SW_2P_TX_LP BIT(10) #define GEN_SW_1P_TX_LP BIT(9) #define GEN_SW_0P_TX_LP BIT(8) -#define EN_ACK_RQST BIT(1) -#define EN_TEAR_FX BIT(0) +#define ACK_RQST_EN BIT(1) +#define TEAR_FX_EN BIT(0) #define CMD_MODE_ALL_LP (MAX_RD_PKT_SIZE_LP | \ DCS_LW_TX_LP | \ @@ -125,27 +136,31 @@ GEN_SW_0P_TX_LP) #define DSI_GEN_HDR 0x6c +/* TODO These 2 defines will be reworked thanks to mipi_dsi_create_packet() */ #define GEN_HDATA(data) (((data) & 0xffff) << 8) -#define GEN_HDATA_MASK (0xffff << 8) #define GEN_HTYPE(type) (((type) & 0xff) << 0) -#define GEN_HTYPE_MASK 0xff #define DSI_GEN_PLD_DATA 0x70 #define DSI_CMD_PKT_STATUS 0x74 -#define GEN_CMD_EMPTY BIT(0) -#define GEN_CMD_FULL BIT(1) -#define GEN_PLD_W_EMPTY BIT(2) -#define GEN_PLD_W_FULL BIT(3) -#define GEN_PLD_R_EMPTY BIT(4) -#define GEN_PLD_R_FULL BIT(5) #define GEN_RD_CMD_BUSY BIT(6) +#define GEN_PLD_R_FULL BIT(5) +#define GEN_PLD_R_EMPTY BIT(4) +#define GEN_PLD_W_FULL BIT(3) +#define GEN_PLD_W_EMPTY BIT(2) +#define GEN_CMD_FULL BIT(1) +#define GEN_CMD_EMPTY BIT(0) #define DSI_TO_CNT_CFG 0x78 #define HSTX_TO_CNT(p) (((p) & 0xffff) << 16) #define LPRX_TO_CNT(p) ((p) & 0xffff) +#define DSI_HS_RD_TO_CNT 0x7c +#define DSI_LP_RD_TO_CNT 0x80 +#define DSI_HS_WR_TO_CNT 0x84 +#define DSI_LP_WR_TO_CNT 0x88 #define DSI_BTA_TO_CNT 0x8c + #define DSI_LPCLK_CTRL 0x94 #define AUTO_CLKLANE_CTRL BIT(1) #define PHY_TXREQUESTCLKHS BIT(0) @@ -154,6 +169,7 @@ #define PHY_CLKHS2LP_TIME(lbcc) (((lbcc) & 0x3ff) << 16) #define PHY_CLKLP2HS_TIME(lbcc) ((lbcc) & 0x3ff) +/* TODO Next register is slightly different between 1.30 & 1.31 IP version */ #define DSI_PHY_TMR_CFG 0x9c #define PHY_HS2LP_TIME(lbcc) (((lbcc) & 0xff) << 24) #define PHY_LP2HS_TIME(lbcc) (((lbcc) & 0xff) << 16) @@ -170,12 +186,15 @@ #define PHY_UNSHUTDOWNZ BIT(0) #define DSI_PHY_IF_CFG 0xa4 -#define N_LANES(n) ((((n) - 1) & 0x3) << 0) #define PHY_STOP_WAIT_TIME(cycle) (((cycle) & 0xff) << 8) +#define N_LANES(n) (((n) - 1) & 0x3) + +#define DSI_PHY_ULPS_CTRL 0xa8 +#define DSI_PHY_TX_TRIGGERS 0xac #define DSI_PHY_STATUS 0xb0 -#define LOCK BIT(0) -#define STOP_STATE_CLK_LANE BIT(2) +#define PHY_STOP_STATE_CLK_LANE BIT(2) +#define PHY_LOCK BIT(0) #define DSI_PHY_TST_CTRL0 0xb4 #define PHY_TESTCLK BIT(1) @@ -187,12 +206,13 @@ #define PHY_TESTEN BIT(16) #define PHY_UNTESTEN 0 #define PHY_TESTDOUT(n) (((n) & 0xff) << 8) -#define PHY_TESTDIN(n) (((n) & 0xff) << 0) +#define PHY_TESTDIN(n) ((n) & 0xff) #define DSI_INT_ST0 0xbc #define DSI_INT_ST1 0xc0 #define DSI_INT_MSK0 0xc4 #define DSI_INT_MSK1 0xc8 +#define DSI_PHY_TMR_RD_CFG 0xf4 #define PHY_STATUS_TIMEOUT_US 10000 #define CMD_PKT_STATUS_TIMEOUT_US 20000 @@ -307,7 +327,7 @@ static void dw_mipi_message_config(struct dw_mipi_dsi *dsi, u32 val = 0; if (msg->flags & MIPI_DSI_MSG_REQ_ACK) - val |= EN_ACK_RQST; + val |= ACK_RQST_EN; if (lpm) val |= CMD_MODE_ALL_LP; @@ -506,8 +526,8 @@ static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi) * timeout clock division should be computed with the * high speed transmission counter timeout and byte lane... */ - dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) | - TX_ESC_CLK_DIVIDSION(esc_clk_division)); + dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) | + TX_ESC_CLK_DIVISION(esc_clk_division)); } static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi, @@ -520,7 +540,7 @@ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi, color = DPI_COLOR_CODING_24BIT; break; case MIPI_DSI_FMT_RGB666: - color = DPI_COLOR_CODING_18BIT_2 | EN18_LOOSELY; + color = DPI_COLOR_CODING_18BIT_2 | LOOSELY18_EN; break; case MIPI_DSI_FMT_RGB666_PACKED: color = DPI_COLOR_CODING_18BIT_1; @@ -535,7 +555,7 @@ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi, if (mode->flags & DRM_MODE_FLAG_NHSYNC) val |= HSYNC_ACTIVE_LOW; - dsi_write(dsi, DSI_DPI_VCID, DPI_VID(dsi->channel)); + dsi_write(dsi, DSI_DPI_VCID, DPI_VCID(dsi->channel)); dsi_write(dsi, DSI_DPI_COLOR_CODING, color); dsi_write(dsi, DSI_DPI_CFG_POL, val); /* @@ -550,7 +570,7 @@ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi, static void dw_mipi_dsi_packet_handler_config(struct dw_mipi_dsi *dsi) { - dsi_write(dsi, DSI_PCKHDL_CFG, EN_CRC_RX | EN_ECC_RX | EN_BTA); + dsi_write(dsi, DSI_PCKHDL_CFG, CRC_RX_EN | ECC_RX_EN | BTA_EN); } static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi, @@ -571,7 +591,7 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi) /* * TODO dw drv improvements * compute high speed transmission counter timeout according - * to the timeout clock division (TO_CLK_DIVIDSION) and byte lane... + * to the timeout clock division (TO_CLK_DIVISION) and byte lane... */ dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000)); /* @@ -684,13 +704,13 @@ static void dw_mipi_dsi_dphy_enable(struct dw_mipi_dsi *dsi) dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK | PHY_UNRSTZ | PHY_UNSHUTDOWNZ); - ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, - val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US); + ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, val, + val & PHY_LOCK, 1000, PHY_STATUS_TIMEOUT_US); if (ret < 0) DRM_DEBUG_DRIVER("failed to wait phy lock state\n"); ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, - val, val & STOP_STATE_CLK_LANE, 1000, + val, val & PHY_STOP_STATE_CLK_LANE, 1000, PHY_STATUS_TIMEOUT_US); if (ret < 0) DRM_DEBUG_DRIVER("failed to wait phy clk lane stop state\n"); @@ -865,15 +885,14 @@ __dw_mipi_dsi_probe(struct platform_device *pdev, * Note that the reset was not defined in the initial device tree, so * we have to be prepared for it not being found. */ - apb_rst = devm_reset_control_get(dev, "apb"); + apb_rst = devm_reset_control_get_optional_exclusive(dev, "apb"); if (IS_ERR(apb_rst)) { ret = PTR_ERR(apb_rst); - if (ret == -ENOENT) { - apb_rst = NULL; - } else { + + if (ret != -EPROBE_DEFER) dev_err(dev, "Unable to get reset control: %d\n", ret); - return ERR_PTR(ret); - } + + return ERR_PTR(ret); } if (apb_rst) { diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 2fd383d..366c56f 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -163,13 +163,6 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state) crtc->funcs->atomic_destroy_state(crtc, state->crtcs[i].state); - if (state->crtcs[i].commit) { - kfree(state->crtcs[i].commit->event); - state->crtcs[i].commit->event = NULL; - drm_crtc_commit_put(state->crtcs[i].commit); - } - - state->crtcs[i].commit = NULL; state->crtcs[i].ptr = NULL; state->crtcs[i].state = NULL; } @@ -199,6 +192,10 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state) } state->num_private_objs = 0; + if (state->fake_commit) { + drm_crtc_commit_put(state->fake_commit); + state->fake_commit = NULL; + } } EXPORT_SYMBOL(drm_atomic_state_default_clear); @@ -2237,7 +2234,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev, (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) return -EINVAL; - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); state = drm_atomic_state_alloc(dev); if (!state) @@ -2350,8 +2347,9 @@ out: if (ret == -EDEADLK) { drm_atomic_state_clear(state); - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_atomic_state_put(state); diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 4e53aae..01c34bc 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1262,12 +1262,12 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_vblanks); void drm_atomic_helper_wait_for_flip_done(struct drm_device *dev, struct drm_atomic_state *old_state) { - struct drm_crtc_state *unused; + struct drm_crtc_state *new_crtc_state; struct drm_crtc *crtc; int i; - for_each_new_crtc_in_state(old_state, crtc, unused, i) { - struct drm_crtc_commit *commit = old_state->crtcs[i].commit; + for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { + struct drm_crtc_commit *commit = new_crtc_state->commit; int ret; if (!commit) @@ -1388,35 +1388,31 @@ int drm_atomic_helper_async_check(struct drm_device *dev, { struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; - struct drm_crtc_commit *commit; - struct drm_plane *__plane, *plane = NULL; - struct drm_plane_state *__plane_state, *plane_state = NULL; + struct drm_plane *plane; + struct drm_plane_state *old_plane_state, *new_plane_state; const struct drm_plane_helper_funcs *funcs; - int i, j, n_planes = 0; + int i, n_planes = 0; for_each_new_crtc_in_state(state, crtc, crtc_state, i) { if (drm_atomic_crtc_needs_modeset(crtc_state)) return -EINVAL; } - for_each_new_plane_in_state(state, __plane, __plane_state, i) { + for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) n_planes++; - plane = __plane; - plane_state = __plane_state; - } /* FIXME: we support only single plane updates for now */ - if (!plane || n_planes != 1) + if (n_planes != 1) return -EINVAL; - if (!plane_state->crtc) + if (!new_plane_state->crtc) return -EINVAL; funcs = plane->helper_private; if (!funcs->atomic_async_update) return -EINVAL; - if (plane_state->fence) + if (new_plane_state->fence) return -EINVAL; /* @@ -1424,31 +1420,11 @@ int drm_atomic_helper_async_check(struct drm_device *dev, * the plane. This prevents our async update's changes from getting * overridden by a previous synchronous update's state. */ - for_each_new_crtc_in_state(state, crtc, crtc_state, i) { - if (plane->crtc != crtc) - continue; + if (old_plane_state->commit && + !try_wait_for_completion(&old_plane_state->commit->hw_done)) + return -EBUSY; - spin_lock(&crtc->commit_lock); - commit = list_first_entry_or_null(&crtc->commit_list, - struct drm_crtc_commit, - commit_entry); - if (!commit) { - spin_unlock(&crtc->commit_lock); - continue; - } - spin_unlock(&crtc->commit_lock); - - if (!crtc->state->state) - continue; - - for_each_plane_in_state(crtc->state->state, __plane, - __plane_state, j) { - if (__plane == plane) - return -EINVAL; - } - } - - return funcs->atomic_async_check(plane, plane_state); + return funcs->atomic_async_check(plane, new_plane_state); } EXPORT_SYMBOL(drm_atomic_helper_async_check); @@ -1633,8 +1609,7 @@ static int stall_checks(struct drm_crtc *crtc, bool nonblock) return -EBUSY; } } else if (i == 1) { - stall_commit = commit; - drm_crtc_commit_get(stall_commit); + stall_commit = drm_crtc_commit_get(commit); break; } @@ -1668,6 +1643,38 @@ static void release_crtc_commit(struct completion *completion) drm_crtc_commit_put(commit); } +static void init_commit(struct drm_crtc_commit *commit, struct drm_crtc *crtc) +{ + init_completion(&commit->flip_done); + init_completion(&commit->hw_done); + init_completion(&commit->cleanup_done); + INIT_LIST_HEAD(&commit->commit_entry); + kref_init(&commit->ref); + commit->crtc = crtc; +} + +static struct drm_crtc_commit * +crtc_or_fake_commit(struct drm_atomic_state *state, struct drm_crtc *crtc) +{ + if (crtc) { + struct drm_crtc_state *new_crtc_state; + + new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + + return new_crtc_state->commit; + } + + if (!state->fake_commit) { + state->fake_commit = kzalloc(sizeof(*state->fake_commit), GFP_KERNEL); + if (!state->fake_commit) + return NULL; + + init_commit(state->fake_commit, NULL); + } + + return state->fake_commit; +} + /** * drm_atomic_helper_setup_commit - setup possibly nonblocking commit * @state: new modeset state to be committed @@ -1716,6 +1723,10 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; + struct drm_connector *conn; + struct drm_connector_state *old_conn_state, *new_conn_state; + struct drm_plane *plane; + struct drm_plane_state *old_plane_state, *new_plane_state; struct drm_crtc_commit *commit; int i, ret; @@ -1724,14 +1735,9 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, if (!commit) return -ENOMEM; - init_completion(&commit->flip_done); - init_completion(&commit->hw_done); - init_completion(&commit->cleanup_done); - INIT_LIST_HEAD(&commit->commit_entry); - kref_init(&commit->ref); - commit->crtc = crtc; + init_commit(commit, crtc); - state->crtcs[i].commit = commit; + new_crtc_state->commit = commit; ret = stall_checks(crtc, nonblock); if (ret) @@ -1765,25 +1771,46 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, drm_crtc_commit_get(commit); } - return 0; -} -EXPORT_SYMBOL(drm_atomic_helper_setup_commit); + for_each_oldnew_connector_in_state(state, conn, old_conn_state, new_conn_state, i) { + /* commit tracked through new_crtc_state->commit, no need to do it explicitly */ + if (new_conn_state->crtc) + continue; + /* Userspace is not allowed to get ahead of the previous + * commit with nonblocking ones. */ + if (nonblock && old_conn_state->commit && + !try_wait_for_completion(&old_conn_state->commit->flip_done)) + return -EBUSY; -static struct drm_crtc_commit *preceeding_commit(struct drm_crtc *crtc) -{ - struct drm_crtc_commit *commit; - int i = 0; + commit = crtc_or_fake_commit(state, old_conn_state->crtc); + if (!commit) + return -ENOMEM; - list_for_each_entry(commit, &crtc->commit_list, commit_entry) { - /* skip the first entry, that's the current commit */ - if (i == 1) - return commit; - i++; + new_conn_state->commit = drm_crtc_commit_get(commit); + } + + for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { + /* + * Unlike connectors, always track planes explicitly for + * async pageflip support. + */ + + /* Userspace is not allowed to get ahead of the previous + * commit with nonblocking ones. */ + if (nonblock && old_plane_state->commit && + !try_wait_for_completion(&old_plane_state->commit->flip_done)) + return -EBUSY; + + commit = crtc_or_fake_commit(state, old_plane_state->crtc); + if (!commit) + return -ENOMEM; + + new_plane_state->commit = drm_crtc_commit_get(commit); } - return NULL; + return 0; } +EXPORT_SYMBOL(drm_atomic_helper_setup_commit); /** * drm_atomic_helper_wait_for_dependencies - wait for required preceeding commits @@ -1800,17 +1827,17 @@ static struct drm_crtc_commit *preceeding_commit(struct drm_crtc *crtc) void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) { struct drm_crtc *crtc; - struct drm_crtc_state *new_crtc_state; + struct drm_crtc_state *old_crtc_state; + struct drm_plane *plane; + struct drm_plane_state *old_plane_state; + struct drm_connector *conn; + struct drm_connector_state *old_conn_state; struct drm_crtc_commit *commit; int i; long ret; - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { - spin_lock(&crtc->commit_lock); - commit = preceeding_commit(crtc); - if (commit) - drm_crtc_commit_get(commit); - spin_unlock(&crtc->commit_lock); + for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { + commit = old_crtc_state->commit; if (!commit) continue; @@ -1828,8 +1855,48 @@ void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) if (ret == 0) DRM_ERROR("[CRTC:%d:%s] flip_done timed out\n", crtc->base.id, crtc->name); + } + + for_each_old_connector_in_state(old_state, conn, old_conn_state, i) { + commit = old_conn_state->commit; - drm_crtc_commit_put(commit); + if (!commit) + continue; + + ret = wait_for_completion_timeout(&commit->hw_done, + 10*HZ); + if (ret == 0) + DRM_ERROR("[CONNECTOR:%d:%s] hw_done timed out\n", + conn->base.id, conn->name); + + /* Currently no support for overwriting flips, hence + * stall for previous one to execute completely. */ + ret = wait_for_completion_timeout(&commit->flip_done, + 10*HZ); + if (ret == 0) + DRM_ERROR("[CONNECTOR:%d:%s] flip_done timed out\n", + conn->base.id, conn->name); + } + + for_each_old_plane_in_state(old_state, plane, old_plane_state, i) { + commit = old_plane_state->commit; + + if (!commit) + continue; + + ret = wait_for_completion_timeout(&commit->hw_done, + 10*HZ); + if (ret == 0) + DRM_ERROR("[PLANE:%d:%s] hw_done timed out\n", + plane->base.id, plane->name); + + /* Currently no support for overwriting flips, hence + * stall for previous one to execute completely. */ + ret = wait_for_completion_timeout(&commit->flip_done, + 10*HZ); + if (ret == 0) + DRM_ERROR("[PLANE:%d:%s] flip_done timed out\n", + plane->base.id, plane->name); } } EXPORT_SYMBOL(drm_atomic_helper_wait_for_dependencies); @@ -1852,19 +1919,34 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_dependencies); void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *old_state) { struct drm_crtc *crtc; - struct drm_crtc_state *new_crtc_state; + struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_crtc_commit *commit; int i; - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { - commit = old_state->crtcs[i].commit; + for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + commit = new_crtc_state->commit; if (!commit) continue; + /* + * copy new_crtc_state->commit to old_crtc_state->commit, + * it's unsafe to touch new_crtc_state after hw_done, + * but we still need to do so in cleanup_done(). + */ + if (old_crtc_state->commit) + drm_crtc_commit_put(old_crtc_state->commit); + + old_crtc_state->commit = drm_crtc_commit_get(commit); + /* backend must have consumed any event by now */ WARN_ON(new_crtc_state->event); complete_all(&commit->hw_done); } + + if (old_state->fake_commit) { + complete_all(&old_state->fake_commit->hw_done); + complete_all(&old_state->fake_commit->flip_done); + } } EXPORT_SYMBOL(drm_atomic_helper_commit_hw_done); @@ -1882,39 +1964,25 @@ EXPORT_SYMBOL(drm_atomic_helper_commit_hw_done); void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *old_state) { struct drm_crtc *crtc; - struct drm_crtc_state *new_crtc_state; + struct drm_crtc_state *old_crtc_state; struct drm_crtc_commit *commit; int i; - long ret; - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { - commit = old_state->crtcs[i].commit; + for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { + commit = old_crtc_state->commit; if (WARN_ON(!commit)) continue; complete_all(&commit->cleanup_done); WARN_ON(!try_wait_for_completion(&commit->hw_done)); - /* commit_list borrows our reference, need to remove before we - * clean up our drm_atomic_state. But only after it actually - * completed, otherwise subsequent commits won't stall properly. */ - if (try_wait_for_completion(&commit->flip_done)) - goto del_commit; - - /* We must wait for the vblank event to signal our completion - * before releasing our reference, since the vblank work does - * not hold a reference of its own. */ - ret = wait_for_completion_timeout(&commit->flip_done, - 10*HZ); - if (ret == 0) - DRM_ERROR("[CRTC:%d:%s] flip_done timed out\n", - crtc->base.id, crtc->name); - -del_commit: spin_lock(&crtc->commit_lock); list_del(&commit->commit_entry); spin_unlock(&crtc->commit_lock); } + + if (old_state->fake_commit) + complete_all(&old_state->fake_commit->cleanup_done); } EXPORT_SYMBOL(drm_atomic_helper_commit_cleanup_done); @@ -2294,20 +2362,44 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, struct drm_private_state *old_obj_state, *new_obj_state; if (stall) { - for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { - spin_lock(&crtc->commit_lock); - commit = list_first_entry_or_null(&crtc->commit_list, - struct drm_crtc_commit, commit_entry); - if (commit) - drm_crtc_commit_get(commit); - spin_unlock(&crtc->commit_lock); + /* + * We have to stall for hw_done here before + * drm_atomic_helper_wait_for_dependencies() because flip + * depth > 1 is not yet supported by all drivers. As long as + * obj->state is directly dereferenced anywhere in the drivers + * atomic_commit_tail function, then it's unsafe to swap state + * before drm_atomic_helper_commit_hw_done() is called. + */ + + for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) { + commit = old_crtc_state->commit; + + if (!commit) + continue; + + ret = wait_for_completion_interruptible(&commit->hw_done); + if (ret) + return ret; + } + + for_each_old_connector_in_state(state, connector, old_conn_state, i) { + commit = old_conn_state->commit; if (!commit) continue; ret = wait_for_completion_interruptible(&commit->hw_done); - drm_crtc_commit_put(commit); + if (ret) + return ret; + } + for_each_old_plane_in_state(state, plane, old_plane_state, i) { + commit = old_plane_state->commit; + + if (!commit) + continue; + + ret = wait_for_completion_interruptible(&commit->hw_done); if (ret) return ret; } @@ -2332,13 +2424,13 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, state->crtcs[i].state = old_crtc_state; crtc->state = new_crtc_state; - if (state->crtcs[i].commit) { + if (new_crtc_state->commit) { spin_lock(&crtc->commit_lock); - list_add(&state->crtcs[i].commit->commit_entry, + list_add(&new_crtc_state->commit->commit_entry, &crtc->commit_list); spin_unlock(&crtc->commit_lock); - state->crtcs[i].commit->event = NULL; + new_crtc_state->commit->event = NULL; } } @@ -3186,6 +3278,7 @@ void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, state->connectors_changed = false; state->color_mgmt_changed = false; state->zpos_changed = false; + state->commit = NULL; state->event = NULL; state->pageflip_flags = 0; } @@ -3224,6 +3317,12 @@ EXPORT_SYMBOL(drm_atomic_helper_crtc_duplicate_state); */ void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc_state *state) { + if (state->commit) { + kfree(state->commit->event); + state->commit->event = NULL; + drm_crtc_commit_put(state->commit); + } + drm_property_blob_put(state->mode_blob); drm_property_blob_put(state->degamma_lut); drm_property_blob_put(state->ctm); @@ -3286,6 +3385,7 @@ void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, drm_framebuffer_get(state->fb); state->fence = NULL; + state->commit = NULL; } EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state); @@ -3327,6 +3427,9 @@ void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state) if (state->fence) dma_fence_put(state->fence); + + if (state->commit) + drm_crtc_commit_put(state->commit); } EXPORT_SYMBOL(__drm_atomic_helper_plane_destroy_state); @@ -3405,6 +3508,7 @@ __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, memcpy(state, connector->state, sizeof(*state)); if (state->crtc) drm_connector_get(connector); + state->commit = NULL; } EXPORT_SYMBOL(__drm_atomic_helper_connector_duplicate_state); @@ -3531,6 +3635,9 @@ __drm_atomic_helper_connector_destroy_state(struct drm_connector_state *state) { if (state->crtc) drm_connector_put(state->connector); + + if (state->commit) + drm_crtc_commit_put(state->commit); } EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state); diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index dc8cdfe..1638bfe 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -67,17 +67,12 @@ static LIST_HEAD(bridge_list); * drm_bridge_add - add the given bridge to the global bridge list * * @bridge: bridge control structure - * - * RETURNS: - * Unconditionally returns Zero. */ -int drm_bridge_add(struct drm_bridge *bridge) +void drm_bridge_add(struct drm_bridge *bridge) { mutex_lock(&bridge_lock); list_add_tail(&bridge->list, &bridge_list); mutex_unlock(&bridge_lock); - - return 0; } EXPORT_SYMBOL(drm_bridge_add); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index ba9f36c..bb2e60f 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -615,7 +615,6 @@ static const struct drm_prop_enum_list drm_link_status_enum_list[] = { { DRM_MODE_LINK_STATUS_GOOD, "Good" }, { DRM_MODE_LINK_STATUS_BAD, "Bad" }, }; -DRM_ENUM_NAME_FN(drm_get_link_status_name, drm_link_status_enum_list) /** * drm_display_info_set_bus_formats - set the supported bus formats diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 5af25ce..68b4e97 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -577,7 +577,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); mutex_lock(&crtc->dev->mode_config.mutex); - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); retry: ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx); if (ret) @@ -717,8 +717,9 @@ out: kfree(connector_set); drm_mode_destroy(dev, mode); if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c index f9e26dd..9dd8795 100644 --- a/drivers/gpu/drm/drm_debugfs_crc.c +++ b/drivers/gpu/drm/drm_debugfs_crc.c @@ -155,7 +155,7 @@ static int crtc_crc_open(struct inode *inode, struct file *filep) int ret = 0; if (drm_drv_uses_atomic_modeset(crtc->dev)) { - ret = drm_modeset_lock_interruptible(&crtc->mutex, NULL); + ret = drm_modeset_lock_single_interruptible(&crtc->mutex); if (ret) return ret; diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 41b492f..70dcfa5 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -294,6 +294,12 @@ static void drm_dp_encode_sideband_req(struct drm_dp_sideband_msg_req_body *req, memcpy(&buf[idx], req->u.i2c_write.bytes, req->u.i2c_write.num_bytes); idx += req->u.i2c_write.num_bytes; break; + + case DP_POWER_DOWN_PHY: + case DP_POWER_UP_PHY: + buf[idx] = (req->u.port_num.port_number & 0xf) << 4; + idx++; + break; } raw->cur_len = idx; } @@ -538,6 +544,21 @@ fail_len: return false; } +static bool drm_dp_sideband_parse_power_updown_phy_ack(struct drm_dp_sideband_msg_rx *raw, + struct drm_dp_sideband_msg_reply_body *repmsg) +{ + int idx = 1; + + repmsg->u.port_number.port_number = (raw->msg[idx] >> 4) & 0xf; + idx++; + if (idx > raw->curlen) { + DRM_DEBUG_KMS("power up/down phy parse length fail %d %d\n", + idx, raw->curlen); + return false; + } + return true; +} + static bool drm_dp_sideband_parse_reply(struct drm_dp_sideband_msg_rx *raw, struct drm_dp_sideband_msg_reply_body *msg) { @@ -567,6 +588,9 @@ static bool drm_dp_sideband_parse_reply(struct drm_dp_sideband_msg_rx *raw, return drm_dp_sideband_parse_enum_path_resources_ack(raw, msg); case DP_ALLOCATE_PAYLOAD: return drm_dp_sideband_parse_allocate_payload_ack(raw, msg); + case DP_POWER_DOWN_PHY: + case DP_POWER_UP_PHY: + return drm_dp_sideband_parse_power_updown_phy_ack(raw, msg); default: DRM_ERROR("Got unknown reply 0x%02x\n", msg->req_type); return false; @@ -693,6 +717,22 @@ static int build_allocate_payload(struct drm_dp_sideband_msg_tx *msg, int port_n return 0; } +static int build_power_updown_phy(struct drm_dp_sideband_msg_tx *msg, + int port_num, bool power_up) +{ + struct drm_dp_sideband_msg_req_body req; + + if (power_up) + req.req_type = DP_POWER_UP_PHY; + else + req.req_type = DP_POWER_DOWN_PHY; + + req.u.port_num.port_number = port_num; + drm_dp_encode_sideband_req(&req, msg); + msg->path_msg = true; + return 0; +} + static int drm_dp_mst_assign_payload_id(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_vcpi *vcpi) { @@ -1724,6 +1764,40 @@ fail_put: return ret; } +int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_port *port, bool power_up) +{ + struct drm_dp_sideband_msg_tx *txmsg; + int len, ret; + + port = drm_dp_get_validated_port_ref(mgr, port); + if (!port) + return -EINVAL; + + txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL); + if (!txmsg) { + drm_dp_put_port(port); + return -ENOMEM; + } + + txmsg->dst = port->parent; + len = build_power_updown_phy(txmsg, port->port_num, power_up); + drm_dp_queue_down_tx(mgr, txmsg); + + ret = drm_dp_mst_wait_tx_reply(port->parent, txmsg); + if (ret > 0) { + if (txmsg->reply.reply_type == 1) + ret = -EINVAL; + else + ret = 0; + } + kfree(txmsg); + drm_dp_put_port(port); + + return ret; +} +EXPORT_SYMBOL(drm_dp_send_power_updown_phy); + static int drm_dp_create_payload_step1(struct drm_dp_mst_topology_mgr *mgr, int id, struct drm_dp_payload *payload) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 6bb6337..00ddabf 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1533,6 +1533,10 @@ static void connector_bad_edid(struct drm_connector *connector, * level, drivers must make all reasonable efforts to expose it as an I2C * adapter and use drm_get_edid() instead of abusing this function. * + * The EDID may be overridden using debugfs override_edid or firmare EDID + * (drm_load_edid_firmware() and drm.edid_firmware parameter), in this priority + * order. Having either of them bypasses actual EDID reads. + * * Return: Pointer to valid EDID or NULL if we couldn't find any. */ struct edid *drm_do_get_edid(struct drm_connector *connector, @@ -1542,6 +1546,17 @@ struct edid *drm_do_get_edid(struct drm_connector *connector, { int i, j = 0, valid_extensions = 0; u8 *edid, *new; + struct edid *override = NULL; + + if (connector->override_edid) + override = drm_edid_duplicate((const struct edid *) + connector->edid_blob_ptr->data); + + if (!override) + override = drm_load_edid_firmware(connector); + + if (!IS_ERR_OR_NULL(override)) + return override; if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) return NULL; diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c index 1c0495a..a491509 100644 --- a/drivers/gpu/drm/drm_edid_load.c +++ b/drivers/gpu/drm/drm_edid_load.c @@ -31,6 +31,22 @@ module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644); MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob " "from built-in data or /lib/firmware instead. "); +/* Use only for backward compatibility with drm_kms_helper.edid_firmware */ +int __drm_set_edid_firmware_path(const char *path) +{ + scnprintf(edid_firmware, sizeof(edid_firmware), "%s", path); + + return 0; +} +EXPORT_SYMBOL(__drm_set_edid_firmware_path); + +/* Use only for backward compatibility with drm_kms_helper.edid_firmware */ +int __drm_get_edid_firmware_path(char *buf, size_t bufsize) +{ + return scnprintf(buf, bufsize, "%s", edid_firmware); +} +EXPORT_SYMBOL(__drm_get_edid_firmware_path); + #define GENERIC_EDIDS 6 static const char * const generic_edid_name[GENERIC_EDIDS] = { "edid/800x600.bin", diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 1b8f013..6a31d13 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -910,6 +910,9 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) if (!drm_fbdev_emulation || !fb_helper) return; + cancel_work_sync(&fb_helper->resume_work); + cancel_work_sync(&fb_helper->dirty_work); + info = fb_helper->fbdev; if (info) { if (info->cmap.len) @@ -918,9 +921,6 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) } fb_helper->fbdev = NULL; - cancel_work_sync(&fb_helper->resume_work); - cancel_work_sync(&fb_helper->dirty_work); - mutex_lock(&kernel_fb_helper_lock); if (!list_empty(&fb_helper->kernel_fb_list)) { list_del(&fb_helper->kernel_fb_list); diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index c55f338..7199bba 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -334,6 +334,12 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, if (!obj) return -ENOENT; + /* Don't allow imported objects to be mapped */ + if (obj->import_attach) { + ret = -EINVAL; + goto out; + } + ret = drm_gem_create_mmap_offset(obj); if (ret) goto out; diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c index d54a083..fc7e995 100644 --- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c +++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c @@ -154,7 +154,7 @@ drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file, objs[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]); if (!objs[i]) { - DRM_DEV_ERROR(dev->dev, "Failed to lookup GEM\n"); + DRM_DEBUG_KMS("Failed to lookup GEM object\n"); ret = -ENOENT; goto err_gem_object_put; } @@ -232,7 +232,7 @@ int drm_gem_fb_prepare_fb(struct drm_plane *plane, struct dma_buf *dma_buf; struct dma_fence *fence; - if ((plane->state->fb == state->fb) || !state->fb) + if (plane->state->fb == state->fb || !state->fb) return 0; dma_buf = drm_gem_fb_get_obj(state->fb, 0)->dma_buf; diff --git a/drivers/gpu/drm/drm_kms_helper_common.c b/drivers/gpu/drm/drm_kms_helper_common.c index 6e35a56..93e2b30 100644 --- a/drivers/gpu/drm/drm_kms_helper_common.c +++ b/drivers/gpu/drm/drm_kms_helper_common.c @@ -26,6 +26,7 @@ */ #include <linux/module.h> +#include <drm/drmP.h> #include "drm_crtc_helper_internal.h" @@ -33,6 +34,33 @@ MODULE_AUTHOR("David Airlie, Jesse Barnes"); MODULE_DESCRIPTION("DRM KMS helper"); MODULE_LICENSE("GPL and additional rights"); +#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE) + +/* Backward compatibility for drm_kms_helper.edid_firmware */ +static int edid_firmware_set(const char *val, const struct kernel_param *kp) +{ + DRM_NOTE("drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware intead.\n"); + + return __drm_set_edid_firmware_path(val); +} + +static int edid_firmware_get(char *buffer, const struct kernel_param *kp) +{ + return __drm_get_edid_firmware_path(buffer, PAGE_SIZE); +} + +static const struct kernel_param_ops edid_firmware_ops = { + .set = edid_firmware_set, + .get = edid_firmware_get, +}; + +module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644); +__MODULE_PARM_TYPE(edid_firmware, "charp"); +MODULE_PARM_DESC(edid_firmware, + "DEPRECATED. Use drm.edid_firmware module parameter instead."); + +#endif + static int __init drm_kms_helper_init(void) { int ret; diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 1055533..7a1ea91 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -247,8 +247,9 @@ int drm_object_property_set_value(struct drm_mode_object *obj, } EXPORT_SYMBOL(drm_object_property_set_value); -int __drm_object_property_get_value(struct drm_mode_object *obj, - struct drm_property *property, uint64_t *val) +static int __drm_object_property_get_value(struct drm_mode_object *obj, + struct drm_property *property, + uint64_t *val) { int i; diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c index af4e906..e123497 100644 --- a/drivers/gpu/drm/drm_modeset_lock.c +++ b/drivers/gpu/drm/drm_modeset_lock.c @@ -39,23 +39,28 @@ * * The basic usage pattern is to:: * - * drm_modeset_acquire_init(&ctx) + * drm_modeset_acquire_init(ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE) * retry: * foreach (lock in random_ordered_set_of_locks) { - * ret = drm_modeset_lock(lock, &ctx) + * ret = drm_modeset_lock(lock, ctx) * if (ret == -EDEADLK) { - * drm_modeset_backoff(&ctx); - * goto retry; + * ret = drm_modeset_backoff(ctx); + * if (!ret) + * goto retry; * } + * if (ret) + * goto out; * } * ... do stuff ... - * drm_modeset_drop_locks(&ctx); - * drm_modeset_acquire_fini(&ctx); + * out: + * drm_modeset_drop_locks(ctx); + * drm_modeset_acquire_fini(ctx); * * If all that is needed is a single modeset lock, then the &struct * drm_modeset_acquire_ctx is not needed and the locking can be simplified - * by passing a NULL instead of ctx in the drm_modeset_lock() - * call and, when done, by calling drm_modeset_unlock(). + * by passing a NULL instead of ctx in the drm_modeset_lock() call or + * calling drm_modeset_lock_single_interruptible(). To unlock afterwards + * call drm_modeset_unlock(). * * On top of these per-object locks using &ww_mutex there's also an overall * &drm_mode_config.mutex, for protecting everything else. Mostly this means @@ -178,7 +183,11 @@ EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); /** * drm_modeset_acquire_init - initialize acquire context * @ctx: the acquire context - * @flags: for future + * @flags: 0 or %DRM_MODESET_ACQUIRE_INTERRUPTIBLE + * + * When passing %DRM_MODESET_ACQUIRE_INTERRUPTIBLE to @flags, + * all calls to drm_modeset_lock() will perform an interruptible + * wait. */ void drm_modeset_acquire_init(struct drm_modeset_acquire_ctx *ctx, uint32_t flags) @@ -186,6 +195,9 @@ void drm_modeset_acquire_init(struct drm_modeset_acquire_ctx *ctx, memset(ctx, 0, sizeof(*ctx)); ww_acquire_init(&ctx->ww_ctx, &crtc_ww_class); INIT_LIST_HEAD(&ctx->locked); + + if (flags & DRM_MODESET_ACQUIRE_INTERRUPTIBLE) + ctx->interruptible = true; } EXPORT_SYMBOL(drm_modeset_acquire_init); @@ -261,8 +273,19 @@ static inline int modeset_lock(struct drm_modeset_lock *lock, return ret; } -static int modeset_backoff(struct drm_modeset_acquire_ctx *ctx, - bool interruptible) +/** + * drm_modeset_backoff - deadlock avoidance backoff + * @ctx: the acquire context + * + * If deadlock is detected (ie. drm_modeset_lock() returns -EDEADLK), + * you must call this function to drop all currently held locks and + * block until the contended lock becomes available. + * + * This function returns 0 on success, or -ERESTARTSYS if this context + * is initialized with %DRM_MODESET_ACQUIRE_INTERRUPTIBLE and the + * wait has been interrupted. + */ +int drm_modeset_backoff(struct drm_modeset_acquire_ctx *ctx) { struct drm_modeset_lock *contended = ctx->contended; @@ -273,36 +296,11 @@ static int modeset_backoff(struct drm_modeset_acquire_ctx *ctx, drm_modeset_drop_locks(ctx); - return modeset_lock(contended, ctx, interruptible, true); -} - -/** - * drm_modeset_backoff - deadlock avoidance backoff - * @ctx: the acquire context - * - * If deadlock is detected (ie. drm_modeset_lock() returns -EDEADLK), - * you must call this function to drop all currently held locks and - * block until the contended lock becomes available. - */ -void drm_modeset_backoff(struct drm_modeset_acquire_ctx *ctx) -{ - modeset_backoff(ctx, false); + return modeset_lock(contended, ctx, ctx->interruptible, true); } EXPORT_SYMBOL(drm_modeset_backoff); /** - * drm_modeset_backoff_interruptible - deadlock avoidance backoff - * @ctx: the acquire context - * - * Interruptible version of drm_modeset_backoff() - */ -int drm_modeset_backoff_interruptible(struct drm_modeset_acquire_ctx *ctx) -{ - return modeset_backoff(ctx, true); -} -EXPORT_SYMBOL(drm_modeset_backoff_interruptible); - -/** * drm_modeset_lock_init - initialize lock * @lock: lock to init */ @@ -324,14 +322,18 @@ EXPORT_SYMBOL(drm_modeset_lock_init); * deadlock scenario has been detected and it is an error to attempt * to take any more locks without first calling drm_modeset_backoff(). * + * If the @ctx is not NULL and initialized with + * %DRM_MODESET_ACQUIRE_INTERRUPTIBLE, this function will fail with + * -ERESTARTSYS when interrupted. + * * If @ctx is NULL then the function call behaves like a normal, - * non-nesting mutex_lock() call. + * uninterruptible non-nesting mutex_lock() call. */ int drm_modeset_lock(struct drm_modeset_lock *lock, struct drm_modeset_acquire_ctx *ctx) { if (ctx) - return modeset_lock(lock, ctx, false, false); + return modeset_lock(lock, ctx, ctx->interruptible, false); ww_mutex_lock(&lock->mutex, NULL); return 0; @@ -339,21 +341,19 @@ int drm_modeset_lock(struct drm_modeset_lock *lock, EXPORT_SYMBOL(drm_modeset_lock); /** - * drm_modeset_lock_interruptible - take modeset lock + * drm_modeset_lock_single_interruptible - take a single modeset lock * @lock: lock to take - * @ctx: acquire ctx * - * Interruptible version of drm_modeset_lock() + * This function behaves as drm_modeset_lock() with a NULL context, + * but performs interruptible waits. + * + * This function returns 0 on success, or -ERESTARTSYS when interrupted. */ -int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock, - struct drm_modeset_acquire_ctx *ctx) +int drm_modeset_lock_single_interruptible(struct drm_modeset_lock *lock) { - if (ctx) - return modeset_lock(lock, ctx, true, false); - return ww_mutex_lock_interruptible(&lock->mutex, NULL); } -EXPORT_SYMBOL(drm_modeset_lock_interruptible); +EXPORT_SYMBOL(drm_modeset_lock_single_interruptible); /** * drm_modeset_unlock - drop modeset lock diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 7a00351..72cba98 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -667,7 +667,7 @@ static int setplane_internal(struct drm_plane *plane, struct drm_modeset_acquire_ctx ctx; int ret; - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); retry: ret = drm_modeset_lock_all_ctx(plane->dev, &ctx); if (ret) @@ -678,8 +678,9 @@ retry: fail: if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); @@ -834,7 +835,7 @@ static int drm_mode_cursor_common(struct drm_device *dev, return -ENOENT; } - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); retry: ret = drm_modeset_lock(&crtc->mutex, &ctx); if (ret) @@ -876,8 +877,9 @@ retry: } out: if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_modeset_drop_locks(&ctx); @@ -985,7 +987,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, return -EINVAL; } - drm_modeset_acquire_init(&ctx, 0); + drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); retry: ret = drm_modeset_lock(&crtc->mutex, &ctx); if (ret) @@ -1074,8 +1076,9 @@ out: crtc->primary->old_fb = NULL; if (ret == -EDEADLK) { - drm_modeset_backoff(&ctx); - goto retry; + ret = drm_modeset_backoff(&ctx); + if (!ret) + goto retry; } drm_modeset_drop_locks(&ctx); diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 904966c..5840aab 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -353,8 +353,6 @@ EXPORT_SYMBOL(drm_helper_probe_detect); * drm_mode_probed_add(). New modes start their life with status as OK. * Modes are added from a single source using the following priority order. * - * - debugfs 'override_edid' (used for testing only) - * - firmware EDID (drm_load_edid_firmware()) * - &drm_connector_helper_funcs.get_modes vfunc * - if the connector status is connector_status_connected, standard * VESA DMT modes up to 1024x768 are automatically added @@ -483,22 +481,7 @@ retry: goto prune; } - if (connector->override_edid) { - struct edid *edid = (struct edid *) connector->edid_blob_ptr->data; - - count = drm_add_edid_modes(connector, edid); - drm_edid_to_eld(connector, edid); - } else { - struct edid *edid = drm_load_edid_firmware(connector); - if (!IS_ERR_OR_NULL(edid)) { - drm_mode_connector_update_edid_property(connector, edid); - count = drm_add_edid_modes(connector, edid); - drm_edid_to_eld(connector, edid); - kfree(edid); - } - if (count == 0) - count = (*connector_funcs->get_modes)(connector); - } + count = (*connector_funcs->get_modes)(connector); if (count == 0 && connector->status == connector_status_connected) count = drm_add_modes_noedid(connector, 1024, 768); diff --git a/drivers/gpu/drm/drm_scdc_helper.c b/drivers/gpu/drm/drm_scdc_helper.c index 935653e..657ea5a 100644 --- a/drivers/gpu/drm/drm_scdc_helper.c +++ b/drivers/gpu/drm/drm_scdc_helper.c @@ -134,7 +134,6 @@ EXPORT_SYMBOL(drm_scdc_write); * Returns: * True if the scrambling is enabled, false otherwise. */ - bool drm_scdc_get_scrambling_status(struct i2c_adapter *adapter) { u8 status; @@ -142,7 +141,7 @@ bool drm_scdc_get_scrambling_status(struct i2c_adapter *adapter) ret = drm_scdc_readb(adapter, SCDC_SCRAMBLER_STATUS, &status); if (ret < 0) { - DRM_ERROR("Failed to read scrambling status, error %d\n", ret); + DRM_ERROR("Failed to read scrambling status: %d\n", ret); return false; } @@ -162,7 +161,6 @@ EXPORT_SYMBOL(drm_scdc_get_scrambling_status); * Returns: * True if scrambling is set/reset successfully, false otherwise. */ - bool drm_scdc_set_scrambling(struct i2c_adapter *adapter, bool enable) { u8 config; @@ -170,7 +168,7 @@ bool drm_scdc_set_scrambling(struct i2c_adapter *adapter, bool enable) ret = drm_scdc_readb(adapter, SCDC_TMDS_CONFIG, &config); if (ret < 0) { - DRM_ERROR("Failed to read tmds config, err=%d\n", ret); + DRM_ERROR("Failed to read TMDS config: %d\n", ret); return false; } @@ -181,7 +179,7 @@ bool drm_scdc_set_scrambling(struct i2c_adapter *adapter, bool enable) ret = drm_scdc_writeb(adapter, SCDC_TMDS_CONFIG, config); if (ret < 0) { - DRM_ERROR("Failed to enable scrambling, error %d\n", ret); + DRM_ERROR("Failed to enable scrambling: %d\n", ret); return false; } @@ -225,7 +223,7 @@ bool drm_scdc_set_high_tmds_clock_ratio(struct i2c_adapter *adapter, bool set) ret = drm_scdc_readb(adapter, SCDC_TMDS_CONFIG, &config); if (ret < 0) { - DRM_ERROR("Failed to read tmds config, err=%d\n", ret); + DRM_ERROR("Failed to read TMDS config: %d\n", ret); return false; } @@ -236,7 +234,7 @@ bool drm_scdc_set_high_tmds_clock_ratio(struct i2c_adapter *adapter, bool set) ret = drm_scdc_writeb(adapter, SCDC_TMDS_CONFIG, config); if (ret < 0) { - DRM_ERROR("Failed to set TMDS clock ratio, error %d\n", ret); + DRM_ERROR("Failed to set TMDS clock ratio: %d\n", ret); return false; } diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 0422b8c..26d6061 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -417,8 +417,8 @@ static int drm_syncobj_fd_to_handle(struct drm_file *file_private, return 0; } -int drm_syncobj_import_sync_file_fence(struct drm_file *file_private, - int fd, int handle) +static int drm_syncobj_import_sync_file_fence(struct drm_file *file_private, + int fd, int handle) { struct dma_fence *fence = sync_file_get_fence(fd); struct drm_syncobj *syncobj; @@ -438,8 +438,8 @@ int drm_syncobj_import_sync_file_fence(struct drm_file *file_private, return 0; } -int drm_syncobj_export_sync_file(struct drm_file *file_private, - int handle, int *p_fd) +static int drm_syncobj_export_sync_file(struct drm_file *file_private, + int handle, int *p_fd) { int ret; struct dma_fence *fence; diff --git a/drivers/gpu/drm/drm_trace.h b/drivers/gpu/drm/drm_trace.h index 14c5a77..16c64d0 100644 --- a/drivers/gpu/drm/drm_trace.h +++ b/drivers/gpu/drm/drm_trace.h @@ -61,5 +61,5 @@ TRACE_EVENT(drm_vblank_event_delivered, /* This part must be outside protection */ #undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm #include <trace/define_trace.h> diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c index ba4a32b..2174814 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_mic.c +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c @@ -420,11 +420,7 @@ static int exynos_mic_probe(struct platform_device *pdev) mic->bridge.funcs = &mic_bridge_funcs; mic->bridge.of_node = dev->of_node; - ret = drm_bridge_add(&mic->bridge); - if (ret) { - DRM_ERROR("mic: Failed to add MIC to the global bridge list\n"); - return ret; - } + drm_bridge_add(&mic->bridge); pm_runtime_enable(dev); diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c index c52f9ad..a4bb89b 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_dp.c +++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c @@ -1901,10 +1901,8 @@ cdv_intel_dp_destroy(struct drm_connector *connector) if (is_edp(gma_encoder)) { /* cdv_intel_panel_destroy_backlight(connector->dev); */ - if (intel_dp->panel_fixed_mode) { - kfree(intel_dp->panel_fixed_mode); - intel_dp->panel_fixed_mode = NULL; - } + kfree(intel_dp->panel_fixed_mode); + intel_dp->panel_fixed_mode = NULL; } i2c_del_adapter(&intel_dp->adapter); drm_connector_unregister(connector); diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c index 531e4450..5c06644 100644 --- a/drivers/gpu/drm/gma500/mdfld_intel_display.c +++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c @@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe) /* Wait for for the pipe enable to take effect. */ for (count = 0; count < COUNT_MAX; count++) { temp = REG_READ(map->conf); - if ((temp & PIPEACONF_PIPE_STATE) == 1) + if (temp & PIPEACONF_PIPE_STATE) break; } } diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c index e9e8ae2..544a8a2 100644 --- a/drivers/gpu/drm/i2c/ch7006_drv.c +++ b/drivers/gpu/drm/i2c/ch7006_drv.c @@ -485,7 +485,7 @@ static int ch7006_encoder_init(struct i2c_client *client, return 0; } -static struct i2c_device_id ch7006_ids[] = { +static const struct i2c_device_id ch7006_ids[] = { { "ch7006", 0 }, { } }; diff --git a/drivers/gpu/drm/i2c/sil164_drv.c b/drivers/gpu/drm/i2c/sil164_drv.c index db0b03f..ecaa587 100644 --- a/drivers/gpu/drm/i2c/sil164_drv.c +++ b/drivers/gpu/drm/i2c/sil164_drv.c @@ -415,7 +415,7 @@ sil164_encoder_init(struct i2c_client *client, return 0; } -static struct i2c_device_id sil164_ids[] = { +static const struct i2c_device_id sil164_ids[] = { { "sil164", 0 }, { } }; diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index 54e3255..4d1f45a 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -1746,7 +1746,7 @@ static const struct of_device_id tda998x_dt_ids[] = { MODULE_DEVICE_TABLE(of, tda998x_dt_ids); #endif -static struct i2c_device_id tda998x_ids[] = { +static const struct i2c_device_id tda998x_ids[] = { { "tda998x", 0 }, { } }; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 18d9da5..b6b175a 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -707,8 +707,7 @@ struct drm_i915_display_funcs { struct drm_atomic_state *old_state); void (*crtc_disable)(struct intel_crtc_state *old_crtc_state, struct drm_atomic_state *old_state); - void (*update_crtcs)(struct drm_atomic_state *state, - unsigned int *crtc_vblank_mask); + void (*update_crtcs)(struct drm_atomic_state *state); void (*audio_codec_enable)(struct drm_connector *connector, struct intel_encoder *encoder, const struct drm_display_mode *adjusted_mode); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 00cd17c..4b34fa6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -12129,73 +12129,10 @@ u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc) return dev->driver->get_vblank_counter(dev, crtc->pipe); } -static void intel_atomic_wait_for_vblanks(struct drm_device *dev, - struct drm_i915_private *dev_priv, - unsigned crtc_mask) -{ - unsigned last_vblank_count[I915_MAX_PIPES]; - enum pipe pipe; - int ret; - - if (!crtc_mask) - return; - - for_each_pipe(dev_priv, pipe) { - struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, - pipe); - - if (!((1 << pipe) & crtc_mask)) - continue; - - ret = drm_crtc_vblank_get(&crtc->base); - if (WARN_ON(ret != 0)) { - crtc_mask &= ~(1 << pipe); - continue; - } - - last_vblank_count[pipe] = drm_crtc_vblank_count(&crtc->base); - } - - for_each_pipe(dev_priv, pipe) { - struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, - pipe); - long lret; - - if (!((1 << pipe) & crtc_mask)) - continue; - - lret = wait_event_timeout(dev->vblank[pipe].queue, - last_vblank_count[pipe] != - drm_crtc_vblank_count(&crtc->base), - msecs_to_jiffies(50)); - - WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe)); - - drm_crtc_vblank_put(&crtc->base); - } -} - -static bool needs_vblank_wait(struct intel_crtc_state *crtc_state) -{ - /* fb updated, need to unpin old fb */ - if (crtc_state->fb_changed) - return true; - - /* wm changes, need vblank before final wm's */ - if (crtc_state->update_wm_post) - return true; - - if (crtc_state->wm.need_postvbl_update) - return true; - - return false; -} - static void intel_update_crtc(struct drm_crtc *crtc, struct drm_atomic_state *state, struct drm_crtc_state *old_crtc_state, - struct drm_crtc_state *new_crtc_state, - unsigned int *crtc_vblank_mask) + struct drm_crtc_state *new_crtc_state) { struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = to_i915(dev); @@ -12218,13 +12155,9 @@ static void intel_update_crtc(struct drm_crtc *crtc, } drm_atomic_helper_commit_planes_on_crtc(old_crtc_state); - - if (needs_vblank_wait(pipe_config)) - *crtc_vblank_mask |= drm_crtc_mask(crtc); } -static void intel_update_crtcs(struct drm_atomic_state *state, - unsigned int *crtc_vblank_mask) +static void intel_update_crtcs(struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; @@ -12235,12 +12168,11 @@ static void intel_update_crtcs(struct drm_atomic_state *state, continue; intel_update_crtc(crtc, state, old_crtc_state, - new_crtc_state, crtc_vblank_mask); + new_crtc_state); } } -static void skl_update_crtcs(struct drm_atomic_state *state, - unsigned int *crtc_vblank_mask) +static void skl_update_crtcs(struct drm_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->dev); struct intel_atomic_state *intel_state = to_intel_atomic_state(state); @@ -12299,7 +12231,7 @@ static void skl_update_crtcs(struct drm_atomic_state *state, vbl_wait = true; intel_update_crtc(crtc, state, old_crtc_state, - new_crtc_state, crtc_vblank_mask); + new_crtc_state); if (vbl_wait) intel_wait_for_vblank(dev_priv, pipe); @@ -12361,7 +12293,6 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) struct intel_crtc_state *intel_cstate; bool hw_check = intel_state->modeset; u64 put_domains[I915_MAX_PIPES] = {}; - unsigned crtc_vblank_mask = 0; int i; intel_atomic_commit_fence_wait(intel_state); @@ -12451,7 +12382,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) } /* Now enable the clocks, plane, pipe, and connectors that we set up. */ - dev_priv->display.update_crtcs(state, &crtc_vblank_mask); + dev_priv->display.update_crtcs(state); /* FIXME: We should call drm_atomic_helper_commit_hw_done() here * already, but still need the state for the delayed optimization. To @@ -12462,8 +12393,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) * - switch over to the vblank wait helper in the core after that since * we don't need out special handling any more. */ - if (!state->legacy_cursor_update) - intel_atomic_wait_for_vblanks(dev, dev_priv, crtc_vblank_mask); + drm_atomic_helper_wait_for_flip_done(dev, state); /* * Now that the vblank has passed, we can go ahead and program the @@ -13061,6 +12991,14 @@ intel_legacy_cursor_update(struct drm_plane *plane, goto slow; old_plane_state = plane->state; + /* + * Don't do an async update if there is an outstanding commit modifying + * the plane. This prevents our async update's changes from getting + * overridden by a previous synchronous update's state. + */ + if (old_plane_state->commit && + !try_wait_for_completion(&old_plane_state->commit->hw_done)) + goto slow; /* * If any parameters change that may affect watermarks, @@ -13120,17 +13058,12 @@ intel_legacy_cursor_update(struct drm_plane *plane, } old_fb = old_plane_state->fb; - old_vma = to_intel_plane_state(old_plane_state)->vma; i915_gem_track_fb(intel_fb_obj(old_fb), intel_fb_obj(fb), intel_plane->frontbuffer_bit); /* Swap plane state */ - new_plane_state->fence = old_plane_state->fence; - *to_intel_plane_state(old_plane_state) = *to_intel_plane_state(new_plane_state); - new_plane_state->fence = NULL; - new_plane_state->fb = old_fb; - to_intel_plane_state(new_plane_state)->vma = NULL; + plane->state = new_plane_state; if (plane->state->visible) { trace_intel_update_plane(plane, to_intel_crtc(crtc)); @@ -13142,13 +13075,17 @@ intel_legacy_cursor_update(struct drm_plane *plane, intel_plane->disable_plane(intel_plane, to_intel_crtc(crtc)); } + old_vma = fetch_and_zero(&to_intel_plane_state(old_plane_state)->vma); if (old_vma) intel_unpin_fb_vma(old_vma); out_unlock: mutex_unlock(&dev_priv->drm.struct_mutex); out_free: - intel_plane_destroy_state(plane, new_plane_state); + if (ret) + intel_plane_destroy_state(plane, new_plane_state); + else + intel_plane_destroy_state(plane, old_plane_state); return ret; slow: diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index f91cb72..93c7e3f 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -24,6 +24,7 @@ #include <drm/drm_fb_helper.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_plane_helper.h> #include <drm/drm_of.h> @@ -105,7 +106,7 @@ static int imx_drm_atomic_check(struct drm_device *dev, } static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = imx_drm_output_poll_changed, .atomic_check = imx_drm_atomic_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index cf98596..247c60e 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -18,6 +18,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_plane_helper.h> #include "video/imx-ipu-v3.h" @@ -690,7 +691,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, } static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { - .prepare_fb = drm_fb_cma_prepare_fb, + .prepare_fb = drm_gem_fb_prepare_fb, .atomic_check = ipu_plane_atomic_check, .atomic_disable = ipu_plane_atomic_disable, .atomic_update = ipu_plane_atomic_update, diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 690c675..3ff5027 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -1696,11 +1696,7 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev) hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs; hdmi->bridge.of_node = pdev->dev.of_node; - ret = drm_bridge_add(&hdmi->bridge); - if (ret) { - dev_err(dev, "failed to add bridge, ret = %d\n", ret); - return ret; - } + drm_bridge_add(&hdmi->bridge); ret = mtk_hdmi_clk_enable_audio(hdmi); if (ret) { diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index d84a031..718d8ce 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -63,6 +63,15 @@ config DRM_PANEL_LG_LG4573 Say Y here if you want to enable support for LG4573 RGB panel. To compile this driver as a module, choose M here. +config DRM_PANEL_ORISETECH_OTM8009A + tristate "Orise Technology otm8009a 480x800 dsi 2dl panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want to enable support for Orise Technology + otm8009a 480x800 dsi 2dl panel. + config DRM_PANEL_PANASONIC_VVX10F034N00 tristate "Panasonic VVX10F034N00 1920x1200 video mode panel" depends on OF @@ -80,12 +89,28 @@ config DRM_PANEL_SAMSUNG_S6E3HA2 depends on BACKLIGHT_CLASS_DEVICE select VIDEOMODE_HELPERS +config DRM_PANEL_SAMSUNG_S6E63J0X03 + tristate "Samsung S6E63J0X03 DSI command mode panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E8AA0 tristate "Samsung S6E8AA0 DSI video mode panel" depends on OF select DRM_MIPI_DSI select VIDEOMODE_HELPERS +config DRM_PANEL_SEIKO_43WVF1G + tristate "Seiko 43WVF1G panel" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + select VIDEOMODE_HELPERS + help + Say Y here if you want to enable support for the Seiko + 43WVF1G controller for 800x480 LCD panels + config DRM_PANEL_SHARP_LQ101R1SX01 tristate "Sharp LQ101R1SX01 panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 9f6610d..c8483fd 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -3,10 +3,13 @@ obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o +obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o +obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c new file mode 100644 index 0000000..c189cd6 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c @@ -0,0 +1,491 @@ +/* + * Copyright (C) STMicroelectronics SA 2017 + * + * Authors: Philippe Cornu <philippe.cornu@st.com> + * Yannick Fertre <yannick.fertre@st.com> + * + * License terms: GNU General Public License (GPL), version 2 + */ +#include <drm/drmP.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_panel.h> +#include <linux/backlight.h> +#include <linux/gpio/consumer.h> +#include <video/mipi_display.h> + +#define DRV_NAME "orisetech_otm8009a" + +#define OTM8009A_BACKLIGHT_DEFAULT 240 +#define OTM8009A_BACKLIGHT_MAX 255 + +/* Manufacturer Command Set */ +#define MCS_ADRSFT 0x0000 /* Address Shift Function */ +#define MCS_PANSET 0xB3A6 /* Panel Type Setting */ +#define MCS_SD_CTRL 0xC0A2 /* Source Driver Timing Setting */ +#define MCS_P_DRV_M 0xC0B4 /* Panel Driving Mode */ +#define MCS_OSC_ADJ 0xC181 /* Oscillator Adjustment for Idle/Normal mode */ +#define MCS_RGB_VID_SET 0xC1A1 /* RGB Video Mode Setting */ +#define MCS_SD_PCH_CTRL 0xC480 /* Source Driver Precharge Control */ +#define MCS_NO_DOC1 0xC48A /* Command not documented */ +#define MCS_PWR_CTRL1 0xC580 /* Power Control Setting 1 */ +#define MCS_PWR_CTRL2 0xC590 /* Power Control Setting 2 for Normal Mode */ +#define MCS_PWR_CTRL4 0xC5B0 /* Power Control Setting 4 for DC Voltage */ +#define MCS_PANCTRLSET1 0xCB80 /* Panel Control Setting 1 */ +#define MCS_PANCTRLSET2 0xCB90 /* Panel Control Setting 2 */ +#define MCS_PANCTRLSET3 0xCBA0 /* Panel Control Setting 3 */ +#define MCS_PANCTRLSET4 0xCBB0 /* Panel Control Setting 4 */ +#define MCS_PANCTRLSET5 0xCBC0 /* Panel Control Setting 5 */ +#define MCS_PANCTRLSET6 0xCBD0 /* Panel Control Setting 6 */ +#define MCS_PANCTRLSET7 0xCBE0 /* Panel Control Setting 7 */ +#define MCS_PANCTRLSET8 0xCBF0 /* Panel Control Setting 8 */ +#define MCS_PANU2D1 0xCC80 /* Panel U2D Setting 1 */ +#define MCS_PANU2D2 0xCC90 /* Panel U2D Setting 2 */ +#define MCS_PANU2D3 0xCCA0 /* Panel U2D Setting 3 */ +#define MCS_PAND2U1 0xCCB0 /* Panel D2U Setting 1 */ +#define MCS_PAND2U2 0xCCC0 /* Panel D2U Setting 2 */ +#define MCS_PAND2U3 0xCCD0 /* Panel D2U Setting 3 */ +#define MCS_GOAVST 0xCE80 /* GOA VST Setting */ +#define MCS_GOACLKA1 0xCEA0 /* GOA CLKA1 Setting */ +#define MCS_GOACLKA3 0xCEB0 /* GOA CLKA3 Setting */ +#define MCS_GOAECLK 0xCFC0 /* GOA ECLK Setting */ +#define MCS_NO_DOC2 0xCFD0 /* Command not documented */ +#define MCS_GVDDSET 0xD800 /* GVDD/NGVDD */ +#define MCS_VCOMDC 0xD900 /* VCOM Voltage Setting */ +#define MCS_GMCT2_2P 0xE100 /* Gamma Correction 2.2+ Setting */ +#define MCS_GMCT2_2N 0xE200 /* Gamma Correction 2.2- Setting */ +#define MCS_NO_DOC3 0xF5B6 /* Command not documented */ +#define MCS_CMD2_ENA1 0xFF00 /* Enable Access Command2 "CMD2" */ +#define MCS_CMD2_ENA2 0xFF80 /* Enable Access Orise Command2 */ + +struct otm8009a { + struct device *dev; + struct drm_panel panel; + struct backlight_device *bl_dev; + struct gpio_desc *reset_gpio; + bool prepared; + bool enabled; +}; + +static const struct drm_display_mode default_mode = { + .clock = 32729, + .hdisplay = 480, + .hsync_start = 480 + 120, + .hsync_end = 480 + 120 + 63, + .htotal = 480 + 120 + 63 + 120, + .vdisplay = 800, + .vsync_start = 800 + 12, + .vsync_end = 800 + 12 + 12, + .vtotal = 800 + 12 + 12 + 12, + .vrefresh = 50, + .flags = 0, + .width_mm = 52, + .height_mm = 86, +}; + +static inline struct otm8009a *panel_to_otm8009a(struct drm_panel *panel) +{ + return container_of(panel, struct otm8009a, panel); +} + +static void otm8009a_dcs_write_buf(struct otm8009a *ctx, const void *data, + size_t len) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + if (mipi_dsi_dcs_write_buffer(dsi, data, len) < 0) + DRM_WARN("mipi dsi dcs write buffer failed\n"); +} + +#define dcs_write_seq(ctx, seq...) \ +({ \ + static const u8 d[] = { seq }; \ + otm8009a_dcs_write_buf(ctx, d, ARRAY_SIZE(d)); \ +}) + +#define dcs_write_cmd_at(ctx, cmd, seq...) \ +({ \ + dcs_write_seq(ctx, MCS_ADRSFT, (cmd) & 0xFF); \ + dcs_write_seq(ctx, (cmd) >> 8, seq); \ +}) + +static int otm8009a_init_sequence(struct otm8009a *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + /* Enter CMD2 */ + dcs_write_cmd_at(ctx, MCS_CMD2_ENA1, 0x80, 0x09, 0x01); + + /* Enter Orise Command2 */ + dcs_write_cmd_at(ctx, MCS_CMD2_ENA2, 0x80, 0x09); + + dcs_write_cmd_at(ctx, MCS_SD_PCH_CTRL, 0x30); + mdelay(10); + + dcs_write_cmd_at(ctx, MCS_NO_DOC1, 0x40); + mdelay(10); + + dcs_write_cmd_at(ctx, MCS_PWR_CTRL4 + 1, 0xA9); + dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 1, 0x34); + dcs_write_cmd_at(ctx, MCS_P_DRV_M, 0x50); + dcs_write_cmd_at(ctx, MCS_VCOMDC, 0x4E); + dcs_write_cmd_at(ctx, MCS_OSC_ADJ, 0x66); /* 65Hz */ + dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 2, 0x01); + dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 5, 0x34); + dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 4, 0x33); + dcs_write_cmd_at(ctx, MCS_GVDDSET, 0x79, 0x79); + dcs_write_cmd_at(ctx, MCS_SD_CTRL + 1, 0x1B); + dcs_write_cmd_at(ctx, MCS_PWR_CTRL1 + 2, 0x83); + dcs_write_cmd_at(ctx, MCS_SD_PCH_CTRL + 1, 0x83); + dcs_write_cmd_at(ctx, MCS_RGB_VID_SET, 0x0E); + dcs_write_cmd_at(ctx, MCS_PANSET, 0x00, 0x01); + + dcs_write_cmd_at(ctx, MCS_GOAVST, 0x85, 0x01, 0x00, 0x84, 0x01, 0x00); + dcs_write_cmd_at(ctx, MCS_GOACLKA1, 0x18, 0x04, 0x03, 0x39, 0x00, 0x00, + 0x00, 0x18, 0x03, 0x03, 0x3A, 0x00, 0x00, 0x00); + dcs_write_cmd_at(ctx, MCS_GOACLKA3, 0x18, 0x02, 0x03, 0x3B, 0x00, 0x00, + 0x00, 0x18, 0x01, 0x03, 0x3C, 0x00, 0x00, 0x00); + dcs_write_cmd_at(ctx, MCS_GOAECLK, 0x01, 0x01, 0x20, 0x20, 0x00, 0x00, + 0x01, 0x02, 0x00, 0x00); + + dcs_write_cmd_at(ctx, MCS_NO_DOC2, 0x00); + + dcs_write_cmd_at(ctx, MCS_PANCTRLSET1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET5, 0, 4, 4, 4, 4, 4, 0, 0, 0, 0, + 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET6, 0, 0, 0, 0, 0, 0, 4, 4, 4, 4, + 4, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); + dcs_write_cmd_at(ctx, MCS_PANCTRLSET8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF); + + dcs_write_cmd_at(ctx, MCS_PANU2D1, 0x00, 0x26, 0x09, 0x0B, 0x01, 0x25, + 0x00, 0x00, 0x00, 0x00); + dcs_write_cmd_at(ctx, MCS_PANU2D2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x26, 0x0A, 0x0C, 0x02); + dcs_write_cmd_at(ctx, MCS_PANU2D3, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + dcs_write_cmd_at(ctx, MCS_PAND2U1, 0x00, 0x25, 0x0C, 0x0A, 0x02, 0x26, + 0x00, 0x00, 0x00, 0x00); + dcs_write_cmd_at(ctx, MCS_PAND2U2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x25, 0x0B, 0x09, 0x01); + dcs_write_cmd_at(ctx, MCS_PAND2U3, 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + + dcs_write_cmd_at(ctx, MCS_PWR_CTRL1 + 1, 0x66); + + dcs_write_cmd_at(ctx, MCS_NO_DOC3, 0x06); + + dcs_write_cmd_at(ctx, MCS_GMCT2_2P, 0x00, 0x09, 0x0F, 0x0E, 0x07, 0x10, + 0x0B, 0x0A, 0x04, 0x07, 0x0B, 0x08, 0x0F, 0x10, 0x0A, + 0x01); + dcs_write_cmd_at(ctx, MCS_GMCT2_2N, 0x00, 0x09, 0x0F, 0x0E, 0x07, 0x10, + 0x0B, 0x0A, 0x04, 0x07, 0x0B, 0x08, 0x0F, 0x10, 0x0A, + 0x01); + + /* Exit CMD2 */ + dcs_write_cmd_at(ctx, MCS_CMD2_ENA1, 0xFF, 0xFF, 0xFF); + + ret = mipi_dsi_dcs_nop(dsi); + if (ret) + return ret; + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret) + return ret; + + /* Wait for sleep out exit */ + mdelay(120); + + /* Default portrait 480x800 rgb24 */ + dcs_write_seq(ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00); + + ret = mipi_dsi_dcs_set_column_address(dsi, 0, + default_mode.hdisplay - 1); + if (ret) + return ret; + + ret = mipi_dsi_dcs_set_page_address(dsi, 0, default_mode.vdisplay - 1); + if (ret) + return ret; + + /* See otm8009a driver documentation for pixel format descriptions */ + ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT | + MIPI_DCS_PIXEL_FMT_24BIT << 4); + if (ret) + return ret; + + /* Disable CABC feature */ + dcs_write_seq(ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00); + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret) + return ret; + + ret = mipi_dsi_dcs_nop(dsi); + if (ret) + return ret; + + /* Send Command GRAM memory write (no parameters) */ + dcs_write_seq(ctx, MIPI_DCS_WRITE_MEMORY_START); + + return 0; +} + +static int otm8009a_disable(struct drm_panel *panel) +{ + struct otm8009a *ctx = panel_to_otm8009a(panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + if (!ctx->enabled) + return 0; /* This is not an issue so we return 0 here */ + + /* Power off the backlight. Note: end-user still controls brightness */ + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + ret = backlight_update_status(ctx->bl_dev); + if (ret) + return ret; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret) + return ret; + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret) + return ret; + + msleep(120); + + ctx->enabled = false; + + return 0; +} + +static int otm8009a_unprepare(struct drm_panel *panel) +{ + struct otm8009a *ctx = panel_to_otm8009a(panel); + + if (!ctx->prepared) + return 0; + + if (ctx->reset_gpio) { + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + msleep(20); + } + + ctx->prepared = false; + + return 0; +} + +static int otm8009a_prepare(struct drm_panel *panel) +{ + struct otm8009a *ctx = panel_to_otm8009a(panel); + int ret; + + if (ctx->prepared) + return 0; + + if (ctx->reset_gpio) { + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + msleep(20); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(100); + } + + ret = otm8009a_init_sequence(ctx); + if (ret) + return ret; + + ctx->prepared = true; + + /* + * Power on the backlight. Note: end-user still controls brightness + * Note: ctx->prepared must be true before updating the backlight. + */ + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; + backlight_update_status(ctx->bl_dev); + + return 0; +} + +static int otm8009a_enable(struct drm_panel *panel) +{ + struct otm8009a *ctx = panel_to_otm8009a(panel); + + ctx->enabled = true; + + return 0; +} + +static int otm8009a_get_modes(struct drm_panel *panel) +{ + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(panel->drm, &default_mode); + if (!mode) { + DRM_ERROR("failed to add mode %ux%ux@%u\n", + default_mode.hdisplay, default_mode.vdisplay, + default_mode.vrefresh); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(panel->connector, mode); + + panel->connector->display_info.width_mm = mode->width_mm; + panel->connector->display_info.height_mm = mode->height_mm; + + return 1; +} + +static const struct drm_panel_funcs otm8009a_drm_funcs = { + .disable = otm8009a_disable, + .unprepare = otm8009a_unprepare, + .prepare = otm8009a_prepare, + .enable = otm8009a_enable, + .get_modes = otm8009a_get_modes, +}; + +/* + * DSI-BASED BACKLIGHT + */ + +static int otm8009a_backlight_update_status(struct backlight_device *bd) +{ + struct otm8009a *ctx = bl_get_data(bd); + u8 data[2]; + + if (!ctx->prepared) { + DRM_DEBUG("lcd not ready yet for setting its backlight!\n"); + return -ENXIO; + } + + if (bd->props.power <= FB_BLANK_NORMAL) { + /* Power on the backlight with the requested brightness + * Note We can not use mipi_dsi_dcs_set_display_brightness() + * as otm8009a driver support only 8-bit brightness (1 param). + */ + data[0] = MIPI_DCS_SET_DISPLAY_BRIGHTNESS; + data[1] = bd->props.brightness; + otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data)); + + /* set Brightness Control & Backlight on */ + data[1] = 0x24; + + } else { + /* Power off the backlight: set Brightness Control & Bl off */ + data[1] = 0; + } + + /* Update Brightness Control & Backlight */ + data[0] = MIPI_DCS_WRITE_CONTROL_DISPLAY; + otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data)); + + return 0; +} + +static const struct backlight_ops otm8009a_backlight_ops = { + .update_status = otm8009a_backlight_update_status, +}; + +static int otm8009a_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct otm8009a *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) { + dev_err(dev, "cannot get reset-gpio\n"); + return PTR_ERR(ctx->reset_gpio); + } + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->dev = dev; + + dsi->lanes = 2; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | + MIPI_DSI_MODE_LPM; + + drm_panel_init(&ctx->panel); + ctx->panel.dev = dev; + ctx->panel.funcs = &otm8009a_drm_funcs; + + ctx->bl_dev = backlight_device_register(DRV_NAME "_backlight", dev, ctx, + &otm8009a_backlight_ops, NULL); + if (IS_ERR(ctx->bl_dev)) { + dev_err(dev, "failed to register backlight device\n"); + return PTR_ERR(ctx->bl_dev); + } + + ctx->bl_dev->props.max_brightness = OTM8009A_BACKLIGHT_MAX; + ctx->bl_dev->props.brightness = OTM8009A_BACKLIGHT_DEFAULT; + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + ctx->bl_dev->props.type = BACKLIGHT_RAW; + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "mipi_dsi_attach failed. Is host ready?\n"); + drm_panel_remove(&ctx->panel); + backlight_device_unregister(ctx->bl_dev); + return ret; + } + + DRM_INFO(DRV_NAME "_panel %ux%u@%u %ubpp dsi %udl - ready\n", + default_mode.hdisplay, default_mode.vdisplay, + default_mode.vrefresh, + mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes); + + return 0; +} + +static int otm8009a_remove(struct mipi_dsi_device *dsi) +{ + struct otm8009a *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); + + backlight_device_unregister(ctx->bl_dev); + + return 0; +} + +static const struct of_device_id orisetech_otm8009a_of_match[] = { + { .compatible = "orisetech,otm8009a" }, + { } +}; +MODULE_DEVICE_TABLE(of, orisetech_otm8009a_of_match); + +static struct mipi_dsi_driver orisetech_otm8009a_driver = { + .probe = otm8009a_probe, + .remove = otm8009a_remove, + .driver = { + .name = DRV_NAME "_panel", + .of_match_table = orisetech_otm8009a_of_match, + }, +}; +module_mipi_dsi_driver(orisetech_otm8009a_driver); + +MODULE_AUTHOR("Philippe Cornu <philippe.cornu@st.com>"); +MODULE_AUTHOR("Yannick Fertre <yannick.fertre@st.com>"); +MODULE_DESCRIPTION("DRM driver for Orise Tech OTM8009A MIPI DSI panel"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c new file mode 100644 index 0000000..aeb32aa --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c @@ -0,0 +1,532 @@ +/* + * MIPI-DSI based S6E63J0X03 AMOLED lcd 1.63 inch panel driver. + * + * Copyright (c) 2014-2017 Samsung Electronics Co., Ltd + * + * Inki Dae <inki.dae@samsung.com> + * Hoegeun Kwon <hoegeun.kwon@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <drm/drmP.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_panel.h> +#include <linux/backlight.h> +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> +#include <video/mipi_display.h> + +#define MCS_LEVEL2_KEY 0xf0 +#define MCS_MTP_KEY 0xf1 +#define MCS_MTP_SET3 0xd4 + +#define MAX_BRIGHTNESS 100 +#define DEFAULT_BRIGHTNESS 80 + +#define NUM_GAMMA_STEPS 9 +#define GAMMA_CMD_CNT 28 + +#define FIRST_COLUMN 20 + +struct s6e63j0x03 { + struct device *dev; + struct drm_panel panel; + struct backlight_device *bl_dev; + + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; +}; + +static const struct drm_display_mode default_mode = { + .clock = 4649, + .hdisplay = 320, + .hsync_start = 320 + 1, + .hsync_end = 320 + 1 + 1, + .htotal = 320 + 1 + 1 + 1, + .vdisplay = 320, + .vsync_start = 320 + 150, + .vsync_end = 320 + 150 + 1, + .vtotal = 320 + 150 + 1 + 2, + .vrefresh = 30, + .flags = 0, +}; + +static const unsigned char gamma_tbl[NUM_GAMMA_STEPS][GAMMA_CMD_CNT] = { + { /* Gamma 10 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x7f, 0x7f, 0x7f, 0x52, 0x6b, 0x6f, 0x26, + 0x28, 0x2d, 0x28, 0x26, 0x27, 0x33, 0x34, 0x32, 0x36, 0x36, + 0x35, 0x00, 0xab, 0x00, 0xae, 0x00, 0xbf + }, + { /* gamma 30 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x70, 0x7f, 0x7f, 0x4e, 0x64, 0x69, 0x26, + 0x27, 0x2a, 0x28, 0x29, 0x27, 0x31, 0x32, 0x31, 0x35, 0x34, + 0x35, 0x00, 0xc4, 0x00, 0xca, 0x00, 0xdc + }, + { /* gamma 60 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x65, 0x7b, 0x7d, 0x5f, 0x67, 0x68, 0x2a, + 0x28, 0x29, 0x28, 0x2a, 0x27, 0x31, 0x2f, 0x30, 0x34, 0x33, + 0x34, 0x00, 0xd9, 0x00, 0xe4, 0x00, 0xf5 + }, + { /* gamma 90 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x4d, 0x6f, 0x71, 0x67, 0x6a, 0x6c, 0x29, + 0x28, 0x28, 0x28, 0x29, 0x27, 0x30, 0x2e, 0x30, 0x32, 0x31, + 0x31, 0x00, 0xea, 0x00, 0xf6, 0x01, 0x09 + }, + { /* gamma 120 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x3d, 0x66, 0x68, 0x69, 0x69, 0x69, 0x28, + 0x28, 0x27, 0x28, 0x28, 0x27, 0x30, 0x2e, 0x2f, 0x31, 0x31, + 0x30, 0x00, 0xf9, 0x01, 0x05, 0x01, 0x1b + }, + { /* gamma 150 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x31, 0x51, 0x53, 0x66, 0x66, 0x67, 0x28, + 0x29, 0x27, 0x28, 0x27, 0x27, 0x2e, 0x2d, 0x2e, 0x31, 0x31, + 0x30, 0x01, 0x04, 0x01, 0x11, 0x01, 0x29 + }, + { /* gamma 200 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x2f, 0x4f, 0x51, 0x67, 0x65, 0x65, 0x29, + 0x2a, 0x28, 0x27, 0x25, 0x26, 0x2d, 0x2c, 0x2c, 0x30, 0x30, + 0x30, 0x01, 0x14, 0x01, 0x23, 0x01, 0x3b + }, + { /* gamma 240 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x2c, 0x4d, 0x50, 0x65, 0x63, 0x64, 0x2a, + 0x2c, 0x29, 0x26, 0x24, 0x25, 0x2c, 0x2b, 0x2b, 0x30, 0x30, + 0x30, 0x01, 0x1e, 0x01, 0x2f, 0x01, 0x47 + }, + { /* gamma 300 */ + MCS_MTP_SET3, + 0x00, 0x00, 0x00, 0x38, 0x61, 0x64, 0x65, 0x63, 0x64, 0x28, + 0x2a, 0x27, 0x26, 0x23, 0x25, 0x2b, 0x2b, 0x2a, 0x30, 0x2f, + 0x30, 0x01, 0x2d, 0x01, 0x3f, 0x01, 0x57 + } +}; + +static inline struct s6e63j0x03 *panel_to_s6e63j0x03(struct drm_panel *panel) +{ + return container_of(panel, struct s6e63j0x03, panel); +} + +static inline ssize_t s6e63j0x03_dcs_write_seq(struct s6e63j0x03 *ctx, + const void *seq, size_t len) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + return mipi_dsi_dcs_write_buffer(dsi, seq, len); +} + +#define s6e63j0x03_dcs_write_seq_static(ctx, seq...) \ + ({ \ + static const u8 d[] = { seq }; \ + s6e63j0x03_dcs_write_seq(ctx, d, ARRAY_SIZE(d)); \ + }) + +static inline int s6e63j0x03_enable_lv2_command(struct s6e63j0x03 *ctx) +{ + return s6e63j0x03_dcs_write_seq_static(ctx, MCS_LEVEL2_KEY, 0x5a, 0x5a); +} + +static inline int s6e63j0x03_apply_mtp_key(struct s6e63j0x03 *ctx, bool on) +{ + if (on) + return s6e63j0x03_dcs_write_seq_static(ctx, + MCS_MTP_KEY, 0x5a, 0x5a); + + return s6e63j0x03_dcs_write_seq_static(ctx, MCS_MTP_KEY, 0xa5, 0xa5); +} + +static int s6e63j0x03_power_on(struct s6e63j0x03 *ctx) +{ + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) + return ret; + + msleep(30); + + gpiod_set_value(ctx->reset_gpio, 1); + usleep_range(1000, 2000); + gpiod_set_value(ctx->reset_gpio, 0); + usleep_range(5000, 6000); + + return 0; +} + +static int s6e63j0x03_power_off(struct s6e63j0x03 *ctx) +{ + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static unsigned int s6e63j0x03_get_brightness_index(unsigned int brightness) +{ + unsigned int index; + + index = brightness / (MAX_BRIGHTNESS / NUM_GAMMA_STEPS); + + if (index >= NUM_GAMMA_STEPS) + index = NUM_GAMMA_STEPS - 1; + + return index; +} + +static int s6e63j0x03_update_gamma(struct s6e63j0x03 *ctx, + unsigned int brightness) +{ + struct backlight_device *bl_dev = ctx->bl_dev; + unsigned int index = s6e63j0x03_get_brightness_index(brightness); + int ret; + + ret = s6e63j0x03_apply_mtp_key(ctx, true); + if (ret < 0) + return ret; + + ret = s6e63j0x03_dcs_write_seq(ctx, gamma_tbl[index], GAMMA_CMD_CNT); + if (ret < 0) + return ret; + + ret = s6e63j0x03_apply_mtp_key(ctx, false); + if (ret < 0) + return ret; + + bl_dev->props.brightness = brightness; + + return 0; +} + +static int s6e63j0x03_set_brightness(struct backlight_device *bl_dev) +{ + struct s6e63j0x03 *ctx = bl_get_data(bl_dev); + unsigned int brightness = bl_dev->props.brightness; + + return s6e63j0x03_update_gamma(ctx, brightness); +} + +static const struct backlight_ops s6e63j0x03_bl_ops = { + .update_status = s6e63j0x03_set_brightness, +}; + +static int s6e63j0x03_disable(struct drm_panel *panel) +{ + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) + return ret; + + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) + return ret; + + msleep(120); + + return 0; +} + +static int s6e63j0x03_unprepare(struct drm_panel *panel) +{ + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel); + int ret; + + ret = s6e63j0x03_power_off(ctx); + if (ret < 0) + return ret; + + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + return 0; +} + +static int s6e63j0x03_panel_init(struct s6e63j0x03 *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = s6e63j0x03_enable_lv2_command(ctx); + if (ret < 0) + return ret; + + ret = s6e63j0x03_apply_mtp_key(ctx, true); + if (ret < 0) + return ret; + + /* set porch adjustment */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xf2, 0x1c, 0x28); + if (ret < 0) + return ret; + + /* set frame freq */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xb5, 0x00, 0x02, 0x00); + if (ret < 0) + return ret; + + /* set caset, paset */ + ret = mipi_dsi_dcs_set_column_address(dsi, FIRST_COLUMN, + default_mode.hdisplay - 1 + FIRST_COLUMN); + if (ret < 0) + return ret; + + ret = mipi_dsi_dcs_set_page_address(dsi, 0, default_mode.vdisplay - 1); + if (ret < 0) + return ret; + + /* set ltps timming 0, 1 */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xf8, 0x08, 0x08, 0x08, 0x17, + 0x00, 0x2a, 0x02, 0x26, 0x00, 0x00, 0x02, 0x00, 0x00); + if (ret < 0) + return ret; + + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xf7, 0x02); + if (ret < 0) + return ret; + + /* set param pos te_edge */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xb0, 0x01); + if (ret < 0) + return ret; + + /* set te rising edge */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xe2, 0x0f); + if (ret < 0) + return ret; + + /* set param pos default */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xb0, 0x00); + if (ret < 0) + return ret; + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) + return ret; + + ret = s6e63j0x03_apply_mtp_key(ctx, false); + if (ret < 0) + return ret; + + return 0; +} + +static int s6e63j0x03_prepare(struct drm_panel *panel) +{ + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel); + int ret; + + ret = s6e63j0x03_power_on(ctx); + if (ret < 0) + return ret; + + ret = s6e63j0x03_panel_init(ctx); + if (ret < 0) + goto err; + + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + return 0; + +err: + s6e63j0x03_power_off(ctx); + return ret; +} + +static int s6e63j0x03_enable(struct drm_panel *panel) +{ + struct s6e63j0x03 *ctx = panel_to_s6e63j0x03(panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + msleep(120); + + ret = s6e63j0x03_apply_mtp_key(ctx, true); + if (ret < 0) + return ret; + + /* set elvss_cond */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, 0xb1, 0x00, 0x09); + if (ret < 0) + return ret; + + /* set pos */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, + MIPI_DCS_SET_ADDRESS_MODE, 0x40); + if (ret < 0) + return ret; + + /* set default white brightness */ + ret = mipi_dsi_dcs_set_display_brightness(dsi, 0x00ff); + if (ret < 0) + return ret; + + /* set white ctrl */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, + MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); + if (ret < 0) + return ret; + + /* set acl off */ + ret = s6e63j0x03_dcs_write_seq_static(ctx, + MIPI_DCS_WRITE_POWER_SAVE, 0x00); + if (ret < 0) + return ret; + + ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); + if (ret < 0) + return ret; + + ret = s6e63j0x03_apply_mtp_key(ctx, false); + if (ret < 0) + return ret; + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) + return ret; + + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; + + return 0; +} + +static int s6e63j0x03_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(panel->drm, &default_mode); + if (!mode) { + DRM_ERROR("failed to add mode %ux%ux@%u\n", + default_mode.hdisplay, default_mode.vdisplay, + default_mode.vrefresh); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + connector->display_info.width_mm = 29; + connector->display_info.height_mm = 29; + + return 1; +} + +static const struct drm_panel_funcs s6e63j0x03_funcs = { + .disable = s6e63j0x03_disable, + .unprepare = s6e63j0x03_unprepare, + .prepare = s6e63j0x03_prepare, + .enable = s6e63j0x03_enable, + .get_modes = s6e63j0x03_get_modes, +}; + +static int s6e63j0x03_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6e63j0x03 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(struct s6e63j0x03), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->dev = dev; + + dsi->lanes = 1; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_EOT_PACKET; + + ctx->supplies[0].supply = "vdd3"; + ctx->supplies[1].supply = "vci"; + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) { + dev_err(dev, "failed to get regulators: %d\n", ret); + return ret; + } + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) { + dev_err(dev, "cannot get reset-gpio: %ld\n", + PTR_ERR(ctx->reset_gpio)); + return PTR_ERR(ctx->reset_gpio); + } + + drm_panel_init(&ctx->panel); + ctx->panel.dev = dev; + ctx->panel.funcs = &s6e63j0x03_funcs; + + ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx, + &s6e63j0x03_bl_ops, NULL); + if (IS_ERR(ctx->bl_dev)) { + dev_err(dev, "failed to register backlight device\n"); + return PTR_ERR(ctx->bl_dev); + } + + ctx->bl_dev->props.max_brightness = MAX_BRIGHTNESS; + ctx->bl_dev->props.brightness = DEFAULT_BRIGHTNESS; + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + ret = drm_panel_add(&ctx->panel); + if (ret < 0) + goto unregister_backlight; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) + goto remove_panel; + + return ret; + +remove_panel: + drm_panel_remove(&ctx->panel); + +unregister_backlight: + backlight_device_unregister(ctx->bl_dev); + + return ret; +} + +static int s6e63j0x03_remove(struct mipi_dsi_device *dsi) +{ + struct s6e63j0x03 *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); + + backlight_device_unregister(ctx->bl_dev); + + return 0; +} + +static const struct of_device_id s6e63j0x03_of_match[] = { + { .compatible = "samsung,s6e63j0x03" }, + { } +}; +MODULE_DEVICE_TABLE(of, s6e63j0x03_of_match); + +static struct mipi_dsi_driver s6e63j0x03_driver = { + .probe = s6e63j0x03_probe, + .remove = s6e63j0x03_remove, + .driver = { + .name = "panel_samsung_s6e63j0x03", + .of_match_table = s6e63j0x03_of_match, + }, +}; +module_mipi_dsi_driver(s6e63j0x03_driver); + +MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); +MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); +MODULE_DESCRIPTION("MIPI-DSI based s6e63j0x03 AMOLED LCD Panel Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c new file mode 100644 index 0000000..71c09ed --- /dev/null +++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c @@ -0,0 +1,372 @@ +/* + * Copyright (C) 2017 NXP Semiconductors. + * Author: Marco Franchi <marco.franchi@nxp.com> + * + * Based on Panel Simple driver by Thierry Reding <treding@nvidia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + */ + +#include <linux/backlight.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/regulator/consumer.h> + +#include <drm/drmP.h> +#include <drm/drm_crtc.h> +#include <drm/drm_panel.h> + +#include <video/display_timing.h> +#include <video/videomode.h> + +struct seiko_panel_desc { + const struct drm_display_mode *modes; + unsigned int num_modes; + const struct display_timing *timings; + unsigned int num_timings; + + unsigned int bpc; + + /** + * @width: width (in millimeters) of the panel's active display area + * @height: height (in millimeters) of the panel's active display area + */ + struct { + unsigned int width; + unsigned int height; + } size; + + u32 bus_format; + u32 bus_flags; +}; + +struct seiko_panel { + struct drm_panel base; + bool prepared; + bool enabled; + const struct seiko_panel_desc *desc; + struct backlight_device *backlight; + struct regulator *dvdd; + struct regulator *avdd; +}; + +static inline struct seiko_panel *to_seiko_panel(struct drm_panel *panel) +{ + return container_of(panel, struct seiko_panel, base); +} + +static int seiko_panel_get_fixed_modes(struct seiko_panel *panel) +{ + struct drm_connector *connector = panel->base.connector; + struct drm_device *drm = panel->base.drm; + struct drm_display_mode *mode; + unsigned int i, num = 0; + + if (!panel->desc) + return 0; + + for (i = 0; i < panel->desc->num_timings; i++) { + const struct display_timing *dt = &panel->desc->timings[i]; + struct videomode vm; + + videomode_from_timing(dt, &vm); + mode = drm_mode_create(drm); + if (!mode) { + dev_err(drm->dev, "failed to add mode %ux%u\n", + dt->hactive.typ, dt->vactive.typ); + continue; + } + + drm_display_mode_from_videomode(&vm, mode); + + mode->type |= DRM_MODE_TYPE_DRIVER; + + if (panel->desc->num_timings == 1) + mode->type |= DRM_MODE_TYPE_PREFERRED; + + drm_mode_probed_add(connector, mode); + num++; + } + + for (i = 0; i < panel->desc->num_modes; i++) { + const struct drm_display_mode *m = &panel->desc->modes[i]; + + mode = drm_mode_duplicate(drm, m); + if (!mode) { + dev_err(drm->dev, "failed to add mode %ux%u@%u\n", + m->hdisplay, m->vdisplay, m->vrefresh); + continue; + } + + mode->type |= DRM_MODE_TYPE_DRIVER; + + if (panel->desc->num_modes == 1) + mode->type |= DRM_MODE_TYPE_PREFERRED; + + drm_mode_set_name(mode); + + drm_mode_probed_add(connector, mode); + num++; + } + + connector->display_info.bpc = panel->desc->bpc; + connector->display_info.width_mm = panel->desc->size.width; + connector->display_info.height_mm = panel->desc->size.height; + if (panel->desc->bus_format) + drm_display_info_set_bus_formats(&connector->display_info, + &panel->desc->bus_format, 1); + connector->display_info.bus_flags = panel->desc->bus_flags; + + return num; +} + +static int seiko_panel_disable(struct drm_panel *panel) +{ + struct seiko_panel *p = to_seiko_panel(panel); + + if (!p->enabled) + return 0; + + if (p->backlight) { + p->backlight->props.power = FB_BLANK_POWERDOWN; + p->backlight->props.state |= BL_CORE_FBBLANK; + backlight_update_status(p->backlight); + } + + p->enabled = false; + + return 0; +} + +static int seiko_panel_unprepare(struct drm_panel *panel) +{ + struct seiko_panel *p = to_seiko_panel(panel); + + if (!p->prepared) + return 0; + + regulator_disable(p->avdd); + + /* Add a 100ms delay as per the panel datasheet */ + msleep(100); + + regulator_disable(p->dvdd); + + p->prepared = false; + + return 0; +} + +static int seiko_panel_prepare(struct drm_panel *panel) +{ + struct seiko_panel *p = to_seiko_panel(panel); + int err; + + if (p->prepared) + return 0; + + err = regulator_enable(p->dvdd); + if (err < 0) { + dev_err(panel->dev, "failed to enable dvdd: %d\n", err); + return err; + } + + /* Add a 100ms delay as per the panel datasheet */ + msleep(100); + + err = regulator_enable(p->avdd); + if (err < 0) { + dev_err(panel->dev, "failed to enable avdd: %d\n", err); + goto disable_dvdd; + } + + p->prepared = true; + + return 0; + +disable_dvdd: + regulator_disable(p->dvdd); + return err; +} + +static int seiko_panel_enable(struct drm_panel *panel) +{ + struct seiko_panel *p = to_seiko_panel(panel); + + if (p->enabled) + return 0; + + if (p->backlight) { + p->backlight->props.state &= ~BL_CORE_FBBLANK; + p->backlight->props.power = FB_BLANK_UNBLANK; + backlight_update_status(p->backlight); + } + + p->enabled = true; + + return 0; +} + +static int seiko_panel_get_modes(struct drm_panel *panel) +{ + struct seiko_panel *p = to_seiko_panel(panel); + + /* add hard-coded panel modes */ + return seiko_panel_get_fixed_modes(p); +} + +static int seiko_panel_get_timings(struct drm_panel *panel, + unsigned int num_timings, + struct display_timing *timings) +{ + struct seiko_panel *p = to_seiko_panel(panel); + unsigned int i; + + if (p->desc->num_timings < num_timings) + num_timings = p->desc->num_timings; + + if (timings) + for (i = 0; i < num_timings; i++) + timings[i] = p->desc->timings[i]; + + return p->desc->num_timings; +} + +static const struct drm_panel_funcs seiko_panel_funcs = { + .disable = seiko_panel_disable, + .unprepare = seiko_panel_unprepare, + .prepare = seiko_panel_prepare, + .enable = seiko_panel_enable, + .get_modes = seiko_panel_get_modes, + .get_timings = seiko_panel_get_timings, +}; + +static int seiko_panel_probe(struct device *dev, + const struct seiko_panel_desc *desc) +{ + struct device_node *backlight; + struct seiko_panel *panel; + int err; + + panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL); + if (!panel) + return -ENOMEM; + + panel->enabled = false; + panel->prepared = false; + panel->desc = desc; + + panel->dvdd = devm_regulator_get(dev, "dvdd"); + if (IS_ERR(panel->dvdd)) + return PTR_ERR(panel->dvdd); + + panel->avdd = devm_regulator_get(dev, "avdd"); + if (IS_ERR(panel->avdd)) + return PTR_ERR(panel->avdd); + + backlight = of_parse_phandle(dev->of_node, "backlight", 0); + if (backlight) { + panel->backlight = of_find_backlight_by_node(backlight); + of_node_put(backlight); + + if (!panel->backlight) + return -EPROBE_DEFER; + } + + drm_panel_init(&panel->base); + panel->base.dev = dev; + panel->base.funcs = &seiko_panel_funcs; + + err = drm_panel_add(&panel->base); + if (err < 0) + return err; + + dev_set_drvdata(dev, panel); + + return 0; +} + +static int seiko_panel_remove(struct platform_device *pdev) +{ + struct seiko_panel *panel = dev_get_drvdata(&pdev->dev); + + drm_panel_detach(&panel->base); + drm_panel_remove(&panel->base); + + seiko_panel_disable(&panel->base); + + if (panel->backlight) + put_device(&panel->backlight->dev); + + return 0; +} + +static void seiko_panel_shutdown(struct platform_device *pdev) +{ + struct seiko_panel *panel = dev_get_drvdata(&pdev->dev); + + seiko_panel_disable(&panel->base); +} + +static const struct display_timing seiko_43wvf1g_timing = { + .pixelclock = { 33500000, 33500000, 33500000 }, + .hactive = { 800, 800, 800 }, + .hfront_porch = { 164, 164, 164 }, + .hback_porch = { 89, 89, 89 }, + .hsync_len = { 10, 10, 10 }, + .vactive = { 480, 480, 480 }, + .vfront_porch = { 10, 10, 10 }, + .vback_porch = { 23, 23, 23 }, + .vsync_len = { 10, 10, 10 }, + .flags = DISPLAY_FLAGS_DE_LOW, +}; + +static const struct seiko_panel_desc seiko_43wvf1g = { + .timings = &seiko_43wvf1g_timing, + .num_timings = 1, + .bpc = 8, + .size = { + .width = 93, + .height = 57, + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X24, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_NEGEDGE, +}; + +static const struct of_device_id platform_of_match[] = { + { + .compatible = "sii,43wvf1g", + .data = &seiko_43wvf1g, + }, { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, platform_of_match); + +static int seiko_panel_platform_probe(struct platform_device *pdev) +{ + const struct of_device_id *id; + + id = of_match_node(platform_of_match, pdev->dev.of_node); + if (!id) + return -ENODEV; + + return seiko_panel_probe(&pdev->dev, id->data); +} + +static struct platform_driver seiko_panel_platform_driver = { + .driver = { + .name = "seiko_panel", + .of_match_table = platform_of_match, + }, + .probe = seiko_panel_platform_probe, + .remove = seiko_panel_remove, + .shutdown = seiko_panel_shutdown, +}; +module_platform_driver(seiko_panel_platform_driver); + +MODULE_AUTHOR("Marco Franchi <marco.franchi@nxp.com"); +MODULE_DESCRIPTION("Seiko 43WVF1G panel driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 474fa75..a3c96d2 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -187,8 +187,7 @@ static int panel_simple_unprepare(struct drm_panel *panel) if (!p->prepared) return 0; - if (p->enable_gpio) - gpiod_set_value_cansleep(p->enable_gpio, 0); + gpiod_set_value_cansleep(p->enable_gpio, 0); regulator_disable(p->supply); @@ -214,8 +213,7 @@ static int panel_simple_prepare(struct drm_panel *panel) return err; } - if (p->enable_gpio) - gpiod_set_value_cansleep(p->enable_gpio, 1); + gpiod_set_value_cansleep(p->enable_gpio, 1); if (p->desc->delay.prepare) msleep(p->desc->delay.prepare); @@ -315,7 +313,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) GPIOD_OUT_LOW); if (IS_ERR(panel->enable_gpio)) { err = PTR_ERR(panel->enable_gpio); - dev_err(dev, "failed to request GPIO: %d\n", err); + if (err != -EPROBE_DEFER) + dev_err(dev, "failed to request GPIO: %d\n", err); return err; } @@ -369,6 +368,7 @@ static int panel_simple_remove(struct device *dev) drm_panel_remove(&panel->base); panel_simple_disable(&panel->base); + panel_simple_unprepare(&panel->base); if (panel->ddc) put_device(&panel->ddc->dev); @@ -384,6 +384,7 @@ static void panel_simple_shutdown(struct device *dev) struct panel_simple *panel = dev_get_drvdata(dev); panel_simple_disable(&panel->base); + panel_simple_unprepare(&panel->base); } static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = { @@ -1522,8 +1523,8 @@ static const struct panel_desc olimex_lcd_olinuxino_43ts = { .modes = &olimex_lcd_olinuxino_43ts_mode, .num_modes = 1, .size = { - .width = 105, - .height = 67, + .width = 95, + .height = 54, }, .bus_format = MEDIA_BUS_FMT_RGB888_1X24, }; diff --git a/drivers/gpu/drm/pl111/Kconfig b/drivers/gpu/drm/pl111/Kconfig index bbfba87..e5e2abd 100644 --- a/drivers/gpu/drm/pl111/Kconfig +++ b/drivers/gpu/drm/pl111/Kconfig @@ -6,7 +6,8 @@ config DRM_PL111 select DRM_KMS_HELPER select DRM_KMS_CMA_HELPER select DRM_GEM_CMA_HELPER - select DRM_PANEL + select DRM_BRIDGE + select DRM_PANEL_BRIDGE select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE help Choose this option for DRM support for the PL111 CLCD controller. diff --git a/drivers/gpu/drm/pl111/Makefile b/drivers/gpu/drm/pl111/Makefile index 59483d6..fce1453 100644 --- a/drivers/gpu/drm/pl111/Makefile +++ b/drivers/gpu/drm/pl111/Makefile @@ -1,5 +1,5 @@ -pl111_drm-y += pl111_connector.o \ - pl111_display.o \ +pl111_drm-y += pl111_display.o \ + pl111_versatile.o \ pl111_drv.o pl111_drm-$(CONFIG_DEBUG_FS) += pl111_debugfs.o diff --git a/drivers/gpu/drm/pl111/pl111_connector.c b/drivers/gpu/drm/pl111/pl111_connector.c deleted file mode 100644 index d335f9a..0000000 --- a/drivers/gpu/drm/pl111/pl111_connector.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. - * - * Parts of this file were based on sources as follows: - * - * Copyright (c) 2006-2008 Intel Corporation - * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> - * Copyright (C) 2011 Texas Instruments - * - * This program is free software and is provided to you under the terms of the - * GNU General Public License version 2 as published by the Free Software - * Foundation, and any use by you of this program is subject to the terms of - * such GNU licence. - * - */ - -/** - * pl111_drm_connector.c - * Implementation of the connector functions for PL111 DRM - */ -#include <linux/amba/clcd-regs.h> -#include <linux/version.h> -#include <linux/shmem_fs.h> -#include <linux/dma-buf.h> - -#include <drm/drmP.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_of.h> -#include <drm/drm_panel.h> - -#include "pl111_drm.h" - -static void pl111_connector_destroy(struct drm_connector *connector) -{ - struct pl111_drm_connector *pl111_connector = - to_pl111_connector(connector); - - if (pl111_connector->panel) - drm_panel_detach(pl111_connector->panel); - - drm_connector_unregister(connector); - drm_connector_cleanup(connector); -} - -static enum drm_connector_status pl111_connector_detect(struct drm_connector - *connector, bool force) -{ - struct pl111_drm_connector *pl111_connector = - to_pl111_connector(connector); - - return (pl111_connector->panel ? - connector_status_connected : - connector_status_disconnected); -} - -static int pl111_connector_helper_get_modes(struct drm_connector *connector) -{ - struct pl111_drm_connector *pl111_connector = - to_pl111_connector(connector); - - if (!pl111_connector->panel) - return 0; - - return drm_panel_get_modes(pl111_connector->panel); -} - -const struct drm_connector_funcs connector_funcs = { - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = pl111_connector_destroy, - .detect = pl111_connector_detect, - .reset = drm_atomic_helper_connector_reset, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, -}; - -const struct drm_connector_helper_funcs connector_helper_funcs = { - .get_modes = pl111_connector_helper_get_modes, -}; - -/* Walks the OF graph to find the panel node and then asks DRM to look - * up the panel. - */ -static struct drm_panel *pl111_get_panel(struct device *dev) -{ - struct device_node *endpoint, *panel_node; - struct device_node *np = dev->of_node; - struct drm_panel *panel; - - endpoint = of_graph_get_next_endpoint(np, NULL); - if (!endpoint) { - dev_err(dev, "no endpoint to fetch panel\n"); - return NULL; - } - - /* don't proceed if we have an endpoint but no panel_node tied to it */ - panel_node = of_graph_get_remote_port_parent(endpoint); - of_node_put(endpoint); - if (!panel_node) { - dev_err(dev, "no valid panel node\n"); - return NULL; - } - - panel = of_drm_find_panel(panel_node); - of_node_put(panel_node); - - return panel; -} - -int pl111_connector_init(struct drm_device *dev) -{ - struct pl111_drm_dev_private *priv = dev->dev_private; - struct pl111_drm_connector *pl111_connector = &priv->connector; - struct drm_connector *connector = &pl111_connector->connector; - - drm_connector_init(dev, connector, &connector_funcs, - DRM_MODE_CONNECTOR_DPI); - drm_connector_helper_add(connector, &connector_helper_funcs); - - pl111_connector->panel = pl111_get_panel(dev->dev); - if (pl111_connector->panel) - drm_panel_attach(pl111_connector->panel, connector); - - return 0; -} - diff --git a/drivers/gpu/drm/pl111/pl111_debugfs.c b/drivers/gpu/drm/pl111/pl111_debugfs.c index 0d9dee1..7ddc7e3 100644 --- a/drivers/gpu/drm/pl111/pl111_debugfs.c +++ b/drivers/gpu/drm/pl111/pl111_debugfs.c @@ -22,8 +22,14 @@ static const struct { REGDEF(CLCD_TIM2), REGDEF(CLCD_TIM3), REGDEF(CLCD_UBAS), + REGDEF(CLCD_LBAS), REGDEF(CLCD_PL111_CNTL), REGDEF(CLCD_PL111_IENB), + REGDEF(CLCD_PL111_RIS), + REGDEF(CLCD_PL111_MIS), + REGDEF(CLCD_PL111_ICR), + REGDEF(CLCD_PL111_UCUR), + REGDEF(CLCD_PL111_LCUR), }; int pl111_debugfs_regs(struct seq_file *m, void *unused) diff --git a/drivers/gpu/drm/pl111/pl111_display.c b/drivers/gpu/drm/pl111/pl111_display.c index b58c988..06c4bf7 100644 --- a/drivers/gpu/drm/pl111/pl111_display.c +++ b/drivers/gpu/drm/pl111/pl111_display.c @@ -21,7 +21,6 @@ #include <linux/of_graph.h> #include <drm/drmP.h> -#include <drm/drm_panel.h> #include <drm/drm_gem_cma_helper.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_fb_cma_helper.h> @@ -94,7 +93,7 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe, struct pl111_drm_dev_private *priv = drm->dev_private; const struct drm_display_mode *mode = &cstate->mode; struct drm_framebuffer *fb = plane->state->fb; - struct drm_connector *connector = &priv->connector.connector; + struct drm_connector *connector = priv->connector; u32 cntl; u32 ppl, hsw, hfp, hbp; u32 lpp, vsw, vfp, vbp; @@ -156,10 +155,8 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe, writel(0, priv->regs + CLCD_TIM3); - drm_panel_prepare(priv->connector.panel); - - /* Enable and Power Up */ - cntl = CNTL_LCDEN | CNTL_LCDTFT | CNTL_LCDPWR | CNTL_LCDVCOMP(1); + /* Hard-code TFT panel */ + cntl = CNTL_LCDEN | CNTL_LCDTFT | CNTL_LCDVCOMP(1); /* Note that the the hardware's format reader takes 'r' from * the low bit, while DRM formats list channels from high bit @@ -202,9 +199,21 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe, break; } - writel(cntl, priv->regs + CLCD_PL111_CNTL); + /* Power sequence: first enable and chill */ + writel(cntl, priv->regs + priv->ctrl); + + /* + * We expect this delay to stabilize the contrast + * voltage Vee as stipulated by the manual + */ + msleep(20); + + if (priv->variant_display_enable) + priv->variant_display_enable(drm, fb->format->format); - drm_panel_enable(priv->connector.panel); + /* Power Up */ + cntl |= CNTL_LCDPWR; + writel(cntl, priv->regs + priv->ctrl); drm_crtc_vblank_on(crtc); } @@ -214,15 +223,28 @@ void pl111_display_disable(struct drm_simple_display_pipe *pipe) struct drm_crtc *crtc = &pipe->crtc; struct drm_device *drm = crtc->dev; struct pl111_drm_dev_private *priv = drm->dev_private; + u32 cntl; drm_crtc_vblank_off(crtc); - drm_panel_disable(priv->connector.panel); + /* Power Down */ + cntl = readl(priv->regs + priv->ctrl); + if (cntl & CNTL_LCDPWR) { + cntl &= ~CNTL_LCDPWR; + writel(cntl, priv->regs + priv->ctrl); + } + + /* + * We expect this delay to stabilize the contrast voltage Vee as + * stipulated by the manual + */ + msleep(20); - /* Disable and Power Down */ - writel(0, priv->regs + CLCD_PL111_CNTL); + if (priv->variant_display_disable) + priv->variant_display_disable(drm); - drm_panel_unprepare(priv->connector.panel); + /* Disable */ + writel(0, priv->regs + priv->ctrl); clk_disable_unprepare(priv->clk); } @@ -260,7 +282,7 @@ int pl111_enable_vblank(struct drm_device *drm, unsigned int crtc) { struct pl111_drm_dev_private *priv = drm->dev_private; - writel(CLCD_IRQ_NEXTBASE_UPDATE, priv->regs + CLCD_PL111_IENB); + writel(CLCD_IRQ_NEXTBASE_UPDATE, priv->regs + priv->ienb); return 0; } @@ -269,7 +291,7 @@ void pl111_disable_vblank(struct drm_device *drm, unsigned int crtc) { struct pl111_drm_dev_private *priv = drm->dev_private; - writel(0, priv->regs + CLCD_PL111_IENB); + writel(0, priv->regs + priv->ienb); } static int pl111_display_prepare_fb(struct drm_simple_display_pipe *pipe, @@ -413,22 +435,6 @@ int pl111_display_init(struct drm_device *drm) struct device_node *endpoint; u32 tft_r0b0g0[3]; int ret; - static const u32 formats[] = { - DRM_FORMAT_ABGR8888, - DRM_FORMAT_XBGR8888, - DRM_FORMAT_ARGB8888, - DRM_FORMAT_XRGB8888, - DRM_FORMAT_BGR565, - DRM_FORMAT_RGB565, - DRM_FORMAT_ABGR1555, - DRM_FORMAT_XBGR1555, - DRM_FORMAT_ARGB1555, - DRM_FORMAT_XRGB1555, - DRM_FORMAT_ABGR4444, - DRM_FORMAT_XBGR4444, - DRM_FORMAT_ARGB4444, - DRM_FORMAT_XRGB4444, - }; endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); if (!endpoint) @@ -444,21 +450,16 @@ int pl111_display_init(struct drm_device *drm) } of_node_put(endpoint); - if (tft_r0b0g0[0] != 0 || - tft_r0b0g0[1] != 8 || - tft_r0b0g0[2] != 16) { - dev_err(dev, "arm,pl11x,tft-r0g0b0-pads != [0,8,16] not yet supported\n"); - return -EINVAL; - } - ret = pl111_init_clock_divider(drm); if (ret) return ret; ret = drm_simple_display_pipe_init(drm, &priv->pipe, &pl111_display_funcs, - formats, ARRAY_SIZE(formats), - NULL, &priv->connector.connector); + priv->variant->formats, + priv->variant->nformats, + NULL, + priv->connector); if (ret) return ret; diff --git a/drivers/gpu/drm/pl111/pl111_drm.h b/drivers/gpu/drm/pl111/pl111_drm.h index 5c685bf..440f53e 100644 --- a/drivers/gpu/drm/pl111/pl111_drm.h +++ b/drivers/gpu/drm/pl111/pl111_drm.h @@ -21,25 +21,43 @@ #include <drm/drm_gem.h> #include <drm/drm_simple_kms_helper.h> +#include <drm/drm_connector.h> +#include <drm/drm_encoder.h> +#include <drm/drm_panel.h> +#include <drm/drm_bridge.h> #include <linux/clk-provider.h> +#include <linux/interrupt.h> #define CLCD_IRQ_NEXTBASE_UPDATE BIT(2) struct drm_minor; -struct pl111_drm_connector { - struct drm_connector connector; - struct drm_panel *panel; +/** + * struct pl111_variant_data - encodes IP differences + * @name: the name of this variant + * @is_pl110: this is the early PL110 variant + * @formats: array of supported pixel formats on this variant + * @nformats: the length of the array of supported pixel formats + */ +struct pl111_variant_data { + const char *name; + bool is_pl110; + const u32 *formats; + unsigned int nformats; }; struct pl111_drm_dev_private { struct drm_device *drm; - struct pl111_drm_connector connector; + struct drm_connector *connector; + struct drm_panel *panel; + struct drm_bridge *bridge; struct drm_simple_display_pipe pipe; struct drm_fbdev_cma *fbdev; void *regs; + u32 ienb; + u32 ctrl; /* The pixel clock (a reference to our clock divider off of CLCDCLK). */ struct clk *clk; /* pl111's internal clock divider. */ @@ -48,20 +66,15 @@ struct pl111_drm_dev_private { * subsystem and pl111_display_enable(). */ spinlock_t tim2_lock; + const struct pl111_variant_data *variant; + void (*variant_display_enable) (struct drm_device *drm, u32 format); + void (*variant_display_disable) (struct drm_device *drm); }; -#define to_pl111_connector(x) \ - container_of(x, struct pl111_drm_connector, connector) - int pl111_display_init(struct drm_device *dev); int pl111_enable_vblank(struct drm_device *drm, unsigned int crtc); void pl111_disable_vblank(struct drm_device *drm, unsigned int crtc); irqreturn_t pl111_irq(int irq, void *data); -int pl111_connector_init(struct drm_device *dev); -int pl111_encoder_init(struct drm_device *dev); -int pl111_dumb_create(struct drm_file *file_priv, - struct drm_device *dev, - struct drm_mode_create_dumb *args); int pl111_debugfs_init(struct drm_minor *minor); #endif /* _PL111_DRM_H_ */ diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c index 581c452..201d57d 100644 --- a/drivers/gpu/drm/pl111/pl111_drv.c +++ b/drivers/gpu/drm/pl111/pl111_drv.c @@ -41,9 +41,6 @@ * - Fix race between setting plane base address and getting IRQ for * vsync firing the pageflip completion. * - * - Expose the correct set of formats we can support based on the - * "arm,pl11x,tft-r0g0b0-pads" DT property. - * * - Use the "max-memory-bandwidth" DT property to filter the * supported formats. * @@ -68,8 +65,12 @@ #include <drm/drm_gem_cma_helper.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_fb_cma_helper.h> +#include <drm/drm_of.h> +#include <drm/drm_bridge.h> +#include <drm/drm_panel.h> #include "pl111_drm.h" +#include "pl111_versatile.h" #define DRIVER_DESC "DRM module for PL111" @@ -83,6 +84,8 @@ static int pl111_modeset_init(struct drm_device *dev) { struct drm_mode_config *mode_config; struct pl111_drm_dev_private *priv = dev->dev_private; + struct drm_panel *panel; + struct drm_bridge *bridge; int ret = 0; drm_mode_config_init(dev); @@ -93,34 +96,43 @@ static int pl111_modeset_init(struct drm_device *dev) mode_config->min_height = 1; mode_config->max_height = 768; - ret = pl111_connector_init(dev); - if (ret) { - dev_err(dev->dev, "Failed to create pl111_drm_connector\n"); - goto out_config; - } - - /* Don't actually attach if we didn't find a drm_panel - * attached to us. This will allow a kernel to include both - * the fbdev pl111 driver and this one, and choose between - * them based on which subsystem has support for the panel. - */ - if (!priv->connector.panel) { - dev_info(dev->dev, - "Disabling due to lack of DRM panel device.\n"); - ret = -ENODEV; - goto out_config; + ret = drm_of_find_panel_or_bridge(dev->dev->of_node, + 0, 0, &panel, &bridge); + if (ret && ret != -ENODEV) + return ret; + if (panel) { + bridge = drm_panel_bridge_add(panel, + DRM_MODE_CONNECTOR_Unknown); + if (IS_ERR(bridge)) { + ret = PTR_ERR(bridge); + goto out_config; + } + /* + * TODO: when we are using a different bridge than a panel + * (such as a dumb VGA connector) we need to devise a different + * method to get the connector out of the bridge. + */ } ret = pl111_display_init(dev); if (ret != 0) { dev_err(dev->dev, "Failed to init display\n"); - goto out_config; + goto out_bridge; } + ret = drm_simple_display_pipe_attach_bridge(&priv->pipe, + bridge); + if (ret) + return ret; + + priv->bridge = bridge; + priv->panel = panel; + priv->connector = panel->connector; + ret = drm_vblank_init(dev, 1); if (ret != 0) { dev_err(dev->dev, "Failed to init vblank\n"); - goto out_config; + goto out_bridge; } drm_mode_config_reset(dev); @@ -132,6 +144,9 @@ static int pl111_modeset_init(struct drm_device *dev) goto finish; +out_bridge: + if (panel) + drm_panel_bridge_remove(bridge); out_config: drm_mode_config_cleanup(dev); finish: @@ -183,6 +198,7 @@ static int pl111_amba_probe(struct amba_device *amba_dev, { struct device *dev = &amba_dev->dev; struct pl111_drm_dev_private *priv; + struct pl111_variant_data *variant = id->data; struct drm_device *drm; int ret; @@ -196,6 +212,33 @@ static int pl111_amba_probe(struct amba_device *amba_dev, amba_set_drvdata(amba_dev, drm); priv->drm = drm; drm->dev_private = priv; + priv->variant = variant; + + /* + * The PL110 and PL111 variants have two registers + * swapped: interrupt enable and control. For this reason + * we use offsets that we can change per variant. + */ + if (variant->is_pl110) { + /* + * The ARM Versatile boards are even more special: + * their PrimeCell ID say they are PL110 but the + * control and interrupt enable registers are anyway + * swapped to the PL111 order so they are not following + * the PL110 datasheet. + */ + if (of_machine_is_compatible("arm,versatile-ab") || + of_machine_is_compatible("arm,versatile-pb")) { + priv->ienb = CLCD_PL111_IENB; + priv->ctrl = CLCD_PL111_CNTL; + } else { + priv->ienb = CLCD_PL110_IENB; + priv->ctrl = CLCD_PL110_CNTL; + } + } else { + priv->ienb = CLCD_PL111_IENB; + priv->ctrl = CLCD_PL111_CNTL; + } priv->regs = devm_ioremap_resource(dev, &amba_dev->res); if (IS_ERR(priv->regs)) { @@ -204,15 +247,19 @@ static int pl111_amba_probe(struct amba_device *amba_dev, } /* turn off interrupts before requesting the irq */ - writel(0, priv->regs + CLCD_PL111_IENB); + writel(0, priv->regs + priv->ienb); ret = devm_request_irq(dev, amba_dev->irq[0], pl111_irq, 0, - "pl111", priv); + variant->name, priv); if (ret != 0) { dev_err(dev, "%s failed irq %d\n", __func__, ret); return ret; } + ret = pl111_versatile_init(dev, priv); + if (ret) + goto dev_unref; + ret = pl111_modeset_init(drm); if (ret != 0) goto dev_unref; @@ -236,16 +283,70 @@ static int pl111_amba_remove(struct amba_device *amba_dev) drm_dev_unregister(drm); if (priv->fbdev) drm_fbdev_cma_fini(priv->fbdev); + if (priv->panel) + drm_panel_bridge_remove(priv->bridge); drm_mode_config_cleanup(drm); drm_dev_unref(drm); return 0; } -static struct amba_id pl111_id_table[] = { +/* + * This variant exist in early versions like the ARM Integrator + * and this version lacks the 565 and 444 pixel formats. + */ +static const u32 pl110_pixel_formats[] = { + DRM_FORMAT_ABGR8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ABGR1555, + DRM_FORMAT_XBGR1555, + DRM_FORMAT_ARGB1555, + DRM_FORMAT_XRGB1555, +}; + +static const struct pl111_variant_data pl110_variant = { + .name = "PL110", + .is_pl110 = true, + .formats = pl110_pixel_formats, + .nformats = ARRAY_SIZE(pl110_pixel_formats), +}; + +/* RealView, Versatile Express etc use this modern variant */ +static const u32 pl111_pixel_formats[] = { + DRM_FORMAT_ABGR8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_BGR565, + DRM_FORMAT_RGB565, + DRM_FORMAT_ABGR1555, + DRM_FORMAT_XBGR1555, + DRM_FORMAT_ARGB1555, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_ABGR4444, + DRM_FORMAT_XBGR4444, + DRM_FORMAT_ARGB4444, + DRM_FORMAT_XRGB4444, +}; + +static const struct pl111_variant_data pl111_variant = { + .name = "PL111", + .formats = pl111_pixel_formats, + .nformats = ARRAY_SIZE(pl111_pixel_formats), +}; + +static const struct amba_id pl111_id_table[] = { + { + .id = 0x00041110, + .mask = 0x000fffff, + .data = (void*)&pl110_variant, + }, { .id = 0x00041111, .mask = 0x000fffff, + .data = (void*)&pl111_variant, }, {0, 0}, }; diff --git a/drivers/gpu/drm/pl111/pl111_versatile.c b/drivers/gpu/drm/pl111/pl111_versatile.c new file mode 100644 index 0000000..97d4af6 --- /dev/null +++ b/drivers/gpu/drm/pl111/pl111_versatile.c @@ -0,0 +1,270 @@ +#include <linux/device.h> +#include <linux/of.h> +#include <linux/regmap.h> +#include <linux/mfd/syscon.h> +#include <linux/bitops.h> +#include <linux/module.h> +#include <drm/drmP.h> +#include "pl111_versatile.h" +#include "pl111_drm.h" + +static struct regmap *versatile_syscon_map; + +/* + * We detect the different syscon types from the compatible strings. + */ +enum versatile_clcd { + INTEGRATOR_CLCD_CM, + VERSATILE_CLCD, + REALVIEW_CLCD_EB, + REALVIEW_CLCD_PB1176, + REALVIEW_CLCD_PB11MP, + REALVIEW_CLCD_PBA8, + REALVIEW_CLCD_PBX, +}; + +static const struct of_device_id versatile_clcd_of_match[] = { + { + .compatible = "arm,core-module-integrator", + .data = (void *)INTEGRATOR_CLCD_CM, + }, + { + .compatible = "arm,versatile-sysreg", + .data = (void *)VERSATILE_CLCD, + }, + { + .compatible = "arm,realview-eb-syscon", + .data = (void *)REALVIEW_CLCD_EB, + }, + { + .compatible = "arm,realview-pb1176-syscon", + .data = (void *)REALVIEW_CLCD_PB1176, + }, + { + .compatible = "arm,realview-pb11mp-syscon", + .data = (void *)REALVIEW_CLCD_PB11MP, + }, + { + .compatible = "arm,realview-pba8-syscon", + .data = (void *)REALVIEW_CLCD_PBA8, + }, + { + .compatible = "arm,realview-pbx-syscon", + .data = (void *)REALVIEW_CLCD_PBX, + }, + {}, +}; + +/* + * Core module CLCD control on the Integrator/CP, bits + * 8 thru 19 of the CM_CONTROL register controls a bunch + * of CLCD settings. + */ +#define INTEGRATOR_HDR_CTRL_OFFSET 0x0C +#define INTEGRATOR_CLCD_LCDBIASEN BIT(8) +#define INTEGRATOR_CLCD_LCDBIASUP BIT(9) +#define INTEGRATOR_CLCD_LCDBIASDN BIT(10) +/* Bits 11,12,13 controls the LCD type */ +#define INTEGRATOR_CLCD_LCDMUX_MASK (BIT(11)|BIT(12)|BIT(13)) +#define INTEGRATOR_CLCD_LCDMUX_LCD24 BIT(11) +#define INTEGRATOR_CLCD_LCDMUX_VGA565 BIT(12) +#define INTEGRATOR_CLCD_LCDMUX_SHARP (BIT(11)|BIT(12)) +#define INTEGRATOR_CLCD_LCDMUX_VGA555 BIT(13) +#define INTEGRATOR_CLCD_LCDMUX_VGA24 (BIT(11)|BIT(12)|BIT(13)) +#define INTEGRATOR_CLCD_LCD0_EN BIT(14) +#define INTEGRATOR_CLCD_LCD1_EN BIT(15) +/* R/L flip on Sharp */ +#define INTEGRATOR_CLCD_LCD_STATIC1 BIT(16) +/* U/D flip on Sharp */ +#define INTEGRATOR_CLCD_LCD_STATIC2 BIT(17) +/* No connection on Sharp */ +#define INTEGRATOR_CLCD_LCD_STATIC BIT(18) +/* 0 = 24bit VGA, 1 = 18bit VGA */ +#define INTEGRATOR_CLCD_LCD_N24BITEN BIT(19) + +#define INTEGRATOR_CLCD_MASK (INTEGRATOR_CLCD_LCDBIASEN | \ + INTEGRATOR_CLCD_LCDBIASUP | \ + INTEGRATOR_CLCD_LCDBIASDN | \ + INTEGRATOR_CLCD_LCDMUX_MASK | \ + INTEGRATOR_CLCD_LCD0_EN | \ + INTEGRATOR_CLCD_LCD1_EN | \ + INTEGRATOR_CLCD_LCD_STATIC1 | \ + INTEGRATOR_CLCD_LCD_STATIC2 | \ + INTEGRATOR_CLCD_LCD_STATIC | \ + INTEGRATOR_CLCD_LCD_N24BITEN) + +static void pl111_integrator_enable(struct drm_device *drm, u32 format) +{ + u32 val; + + dev_info(drm->dev, "enable Integrator CLCD connectors\n"); + + /* FIXME: really needed? */ + val = INTEGRATOR_CLCD_LCD_STATIC1 | INTEGRATOR_CLCD_LCD_STATIC2 | + INTEGRATOR_CLCD_LCD0_EN | INTEGRATOR_CLCD_LCD1_EN; + + switch (format) { + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_XRGB8888: + break; + case DRM_FORMAT_BGR565: + case DRM_FORMAT_RGB565: + /* truecolor RGB565 */ + val |= INTEGRATOR_CLCD_LCDMUX_VGA565; + break; + case DRM_FORMAT_XBGR1555: + case DRM_FORMAT_XRGB1555: + /* Pseudocolor, RGB555, BGR555 */ + val |= INTEGRATOR_CLCD_LCDMUX_VGA555; + break; + default: + dev_err(drm->dev, "unhandled format on Integrator 0x%08x\n", + format); + break; + } + + regmap_update_bits(versatile_syscon_map, + INTEGRATOR_HDR_CTRL_OFFSET, + INTEGRATOR_CLCD_MASK, + val); +} + +/* + * This configuration register in the Versatile and RealView + * family is uniformly present but appears more and more + * unutilized starting with the RealView series. + */ +#define SYS_CLCD 0x50 +#define SYS_CLCD_MODE_MASK (BIT(0)|BIT(1)) +#define SYS_CLCD_MODE_888 0 +#define SYS_CLCD_MODE_5551 BIT(0) +#define SYS_CLCD_MODE_565_R_LSB BIT(1) +#define SYS_CLCD_MODE_565_B_LSB (BIT(0)|BIT(1)) +#define SYS_CLCD_CONNECTOR_MASK (BIT(2)|BIT(3)|BIT(4)|BIT(5)) +#define SYS_CLCD_NLCDIOON BIT(2) +#define SYS_CLCD_VDDPOSSWITCH BIT(3) +#define SYS_CLCD_PWR3V5SWITCH BIT(4) +#define SYS_CLCD_VDDNEGSWITCH BIT(5) + +static void pl111_versatile_disable(struct drm_device *drm) +{ + dev_info(drm->dev, "disable Versatile CLCD connectors\n"); + regmap_update_bits(versatile_syscon_map, + SYS_CLCD, + SYS_CLCD_CONNECTOR_MASK, + 0); +} + +static void pl111_versatile_enable(struct drm_device *drm, u32 format) +{ + u32 val = 0; + + dev_info(drm->dev, "enable Versatile CLCD connectors\n"); + + switch (format) { + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XRGB8888: + val |= SYS_CLCD_MODE_888; + break; + case DRM_FORMAT_BGR565: + val |= SYS_CLCD_MODE_565_R_LSB; + break; + case DRM_FORMAT_RGB565: + val |= SYS_CLCD_MODE_565_B_LSB; + break; + case DRM_FORMAT_ABGR1555: + case DRM_FORMAT_XBGR1555: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_XRGB1555: + val |= SYS_CLCD_MODE_5551; + break; + default: + dev_err(drm->dev, "unhandled format on Versatile 0x%08x\n", + format); + break; + } + + /* Set up the MUX */ + regmap_update_bits(versatile_syscon_map, + SYS_CLCD, + SYS_CLCD_MODE_MASK, + val); + + /* Then enable the display */ + regmap_update_bits(versatile_syscon_map, + SYS_CLCD, + SYS_CLCD_CONNECTOR_MASK, + SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH); +} + +static void pl111_realview_clcd_disable(struct drm_device *drm) +{ + dev_info(drm->dev, "disable RealView CLCD connectors\n"); + regmap_update_bits(versatile_syscon_map, + SYS_CLCD, + SYS_CLCD_CONNECTOR_MASK, + 0); +} + +static void pl111_realview_clcd_enable(struct drm_device *drm, u32 format) +{ + dev_info(drm->dev, "enable RealView CLCD connectors\n"); + regmap_update_bits(versatile_syscon_map, + SYS_CLCD, + SYS_CLCD_CONNECTOR_MASK, + SYS_CLCD_NLCDIOON | SYS_CLCD_PWR3V5SWITCH); +} + +int pl111_versatile_init(struct device *dev, struct pl111_drm_dev_private *priv) +{ + const struct of_device_id *clcd_id; + enum versatile_clcd versatile_clcd_type; + struct device_node *np; + struct regmap *map; + + np = of_find_matching_node_and_match(NULL, versatile_clcd_of_match, + &clcd_id); + if (!np) { + /* Non-ARM reference designs, just bail out */ + return 0; + } + versatile_clcd_type = (enum versatile_clcd)clcd_id->data; + + map = syscon_node_to_regmap(np); + if (IS_ERR(map)) { + dev_err(dev, "no Versatile syscon regmap\n"); + return PTR_ERR(map); + } + + switch (versatile_clcd_type) { + case INTEGRATOR_CLCD_CM: + versatile_syscon_map = map; + priv->variant_display_enable = pl111_integrator_enable; + dev_info(dev, "set up callbacks for Integrator PL110\n"); + break; + case VERSATILE_CLCD: + versatile_syscon_map = map; + priv->variant_display_enable = pl111_versatile_enable; + priv->variant_display_disable = pl111_versatile_disable; + dev_info(dev, "set up callbacks for Versatile PL110+\n"); + break; + case REALVIEW_CLCD_EB: + case REALVIEW_CLCD_PB1176: + case REALVIEW_CLCD_PB11MP: + case REALVIEW_CLCD_PBA8: + case REALVIEW_CLCD_PBX: + versatile_syscon_map = map; + priv->variant_display_enable = pl111_realview_clcd_enable; + priv->variant_display_disable = pl111_realview_clcd_disable; + dev_info(dev, "set up callbacks for RealView PL111\n"); + break; + default: + dev_info(dev, "unknown Versatile system controller\n"); + break; + } + + return 0; +} +EXPORT_SYMBOL_GPL(pl111_versatile_init); diff --git a/drivers/gpu/drm/pl111/pl111_versatile.h b/drivers/gpu/drm/pl111/pl111_versatile.h new file mode 100644 index 0000000..41aa6d9 --- /dev/null +++ b/drivers/gpu/drm/pl111/pl111_versatile.h @@ -0,0 +1,9 @@ +#include <linux/device.h> +#include "pl111_drm.h" + +#ifndef PL111_VERSATILE_H +#define PL111_VERSATILE_H + +int pl111_versatile_init(struct device *dev, struct pl111_drm_dev_private *priv); + +#endif diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index dcc539b..0c31f0a 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -57,4 +57,12 @@ config ROCKCHIP_INNO_HDMI for the Innosilicon HDMI driver. If you want to enable HDMI on RK3036 based SoC, you should select this option. +config ROCKCHIP_LVDS + bool "Rockchip LVDS support" + depends on DRM_ROCKCHIP + help + Choose this option to enable support for Rockchip LVDS controllers. + Rockchip rk3288 SoC has LVDS TX Controller can be used, and it + support LVDS, rgb, dual LVDS output mode. say Y to enable its + driver. endif diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile index fa8dc9d..a881d2c 100644 --- a/drivers/gpu/drm/rockchip/Makefile +++ b/drivers/gpu/drm/rockchip/Makefile @@ -12,5 +12,6 @@ rockchipdrm-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o rockchipdrm-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o rockchipdrm-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi.o rockchipdrm-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o +rockchipdrm-$(CONFIG_ROCKCHIP_LVDS) += rockchip_lvds.o obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index 9606121..4d3f6ad 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -88,7 +88,7 @@ static void analogix_dp_psr_set(struct drm_encoder *encoder, bool enabled) if (!analogix_dp_psr_supported(dp->dev)) return; - dev_dbg(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); + DRM_DEV_DEBUG(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); spin_lock_irqsave(&dp->psr_lock, flags); if (enabled) @@ -110,7 +110,7 @@ static void analogix_dp_psr_work(struct work_struct *work) ret = rockchip_drm_wait_vact_end(dp->encoder.crtc, PSR_WAIT_LINE_FLAG_TIMEOUT_MS); if (ret) { - dev_err(dp->dev, "line flag interrupt did not arrive\n"); + DRM_DEV_ERROR(dp->dev, "line flag interrupt did not arrive\n"); return; } @@ -140,13 +140,13 @@ static int rockchip_dp_poweron(struct analogix_dp_plat_data *plat_data) ret = clk_prepare_enable(dp->pclk); if (ret < 0) { - dev_err(dp->dev, "failed to enable pclk %d\n", ret); + DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret); return ret; } ret = rockchip_dp_pre_init(dp); if (ret < 0) { - dev_err(dp->dev, "failed to dp pre init %d\n", ret); + DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret); clk_disable_unprepare(dp->pclk); return ret; } @@ -211,17 +211,17 @@ static void rockchip_dp_drm_encoder_enable(struct drm_encoder *encoder) else val = dp->data->lcdsel_big; - dev_dbg(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG"); + DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG"); ret = clk_prepare_enable(dp->grfclk); if (ret < 0) { - dev_err(dp->dev, "failed to enable grfclk %d\n", ret); + DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret); return; } ret = regmap_write(dp->grf, dp->data->lcdsel_grf_reg, val); if (ret != 0) - dev_err(dp->dev, "Could not write to GRF: %d\n", ret); + DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret); clk_disable_unprepare(dp->grfclk); } @@ -277,7 +277,7 @@ static int rockchip_dp_init(struct rockchip_dp_device *dp) dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); if (IS_ERR(dp->grf)) { - dev_err(dev, "failed to get rockchip,grf property\n"); + DRM_DEV_ERROR(dev, "failed to get rockchip,grf property\n"); return PTR_ERR(dp->grf); } @@ -287,31 +287,31 @@ static int rockchip_dp_init(struct rockchip_dp_device *dp) } else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) { return -EPROBE_DEFER; } else if (IS_ERR(dp->grfclk)) { - dev_err(dev, "failed to get grf clock\n"); + DRM_DEV_ERROR(dev, "failed to get grf clock\n"); return PTR_ERR(dp->grfclk); } dp->pclk = devm_clk_get(dev, "pclk"); if (IS_ERR(dp->pclk)) { - dev_err(dev, "failed to get pclk property\n"); + DRM_DEV_ERROR(dev, "failed to get pclk property\n"); return PTR_ERR(dp->pclk); } dp->rst = devm_reset_control_get(dev, "dp"); if (IS_ERR(dp->rst)) { - dev_err(dev, "failed to get dp reset control\n"); + DRM_DEV_ERROR(dev, "failed to get dp reset control\n"); return PTR_ERR(dp->rst); } ret = clk_prepare_enable(dp->pclk); if (ret < 0) { - dev_err(dp->dev, "failed to enable pclk %d\n", ret); + DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret); return ret; } ret = rockchip_dp_pre_init(dp); if (ret < 0) { - dev_err(dp->dev, "failed to pre init %d\n", ret); + DRM_DEV_ERROR(dp->dev, "failed to pre init %d\n", ret); clk_disable_unprepare(dp->pclk); return ret; } diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c index b14d211..eb3042c 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-reg.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c @@ -323,7 +323,7 @@ int cdn_dp_load_firmware(struct cdn_dp_device *dp, const u32 *i_mem, reg = readl(dp->regs + VER_LIB_H_ADDR) & 0xff; dp->fw_version |= reg << 24; - dev_dbg(dp->dev, "firmware version: %x\n", dp->fw_version); + DRM_DEV_DEBUG(dp->dev, "firmware version: %x\n", dp->fw_version); return 0; } diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 9a20b9d..b15755b 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -430,9 +430,9 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) testdin = max_mbps_to_testdin(dsi->lane_mbps); if (testdin < 0) { - dev_err(dsi->dev, - "failed to get testdin for %dmbps lane clock\n", - dsi->lane_mbps); + DRM_DEV_ERROR(dsi->dev, + "failed to get testdin for %dmbps lane clock\n", + dsi->lane_mbps); return testdin; } @@ -443,7 +443,7 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) ret = clk_prepare_enable(dsi->phy_cfg_clk); if (ret) { - dev_err(dsi->dev, "Failed to enable phy_cfg_clk\n"); + DRM_DEV_ERROR(dsi->dev, "Failed to enable phy_cfg_clk\n"); return ret; } @@ -501,7 +501,7 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US); if (ret < 0) { - dev_err(dsi->dev, "failed to wait for phy lock state\n"); + DRM_DEV_ERROR(dsi->dev, "failed to wait for phy lock state\n"); goto phy_init_end; } @@ -509,8 +509,8 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) val, val & STOP_STATE_CLK_LANE, 1000, PHY_STATUS_TIMEOUT_US); if (ret < 0) - dev_err(dsi->dev, - "failed to wait for phy clk lane stop state\n"); + DRM_DEV_ERROR(dsi->dev, + "failed to wait for phy clk lane stop state\n"); phy_init_end: clk_disable_unprepare(dsi->phy_cfg_clk); @@ -529,8 +529,9 @@ static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi, bpp = mipi_dsi_pixel_format_to_bpp(dsi->format); if (bpp < 0) { - dev_err(dsi->dev, "failed to get bpp for pixel format %d\n", - dsi->format); + DRM_DEV_ERROR(dsi->dev, + "failed to get bpp for pixel format %d\n", + dsi->format); return bpp; } @@ -541,7 +542,8 @@ static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi, if (tmp < max_mbps) target_mbps = tmp; else - dev_err(dsi->dev, "DPHY clock frequency is out of range\n"); + DRM_DEV_ERROR(dsi->dev, + "DPHY clock frequency is out of range\n"); } pllref = DIV_ROUND_UP(clk_get_rate(dsi->pllref_clk), USEC_PER_SEC); @@ -582,8 +584,9 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host, struct dw_mipi_dsi *dsi = host_to_dsi(host); if (device->lanes > dsi->pdata->max_data_lanes) { - dev_err(dsi->dev, "the number of data lanes(%u) is too many\n", - device->lanes); + DRM_DEV_ERROR(dsi->dev, + "the number of data lanes(%u) is too many\n", + device->lanes); return -EINVAL; } @@ -632,7 +635,8 @@ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val) val, !(val & GEN_CMD_FULL), 1000, CMD_PKT_STATUS_TIMEOUT_US); if (ret < 0) { - dev_err(dsi->dev, "failed to get available command FIFO\n"); + DRM_DEV_ERROR(dsi->dev, + "failed to get available command FIFO\n"); return ret; } @@ -643,7 +647,7 @@ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val) val, (val & mask) == mask, 1000, CMD_PKT_STATUS_TIMEOUT_US); if (ret < 0) { - dev_err(dsi->dev, "failed to write command FIFO\n"); + DRM_DEV_ERROR(dsi->dev, "failed to write command FIFO\n"); return ret; } @@ -663,8 +667,9 @@ static int dw_mipi_dsi_dcs_short_write(struct dw_mipi_dsi *dsi, data |= tx_buf[1] << 8; if (msg->tx_len > 2) { - dev_err(dsi->dev, "too long tx buf length %zu for short write\n", - msg->tx_len); + DRM_DEV_ERROR(dsi->dev, + "too long tx buf length %zu for short write\n", + msg->tx_len); return -EINVAL; } @@ -682,8 +687,9 @@ static int dw_mipi_dsi_dcs_long_write(struct dw_mipi_dsi *dsi, u32 val; if (msg->tx_len < 3) { - dev_err(dsi->dev, "wrong tx buf length %zu for long write\n", - msg->tx_len); + DRM_DEV_ERROR(dsi->dev, + "wrong tx buf length %zu for long write\n", + msg->tx_len); return -EINVAL; } @@ -704,8 +710,8 @@ static int dw_mipi_dsi_dcs_long_write(struct dw_mipi_dsi *dsi, val, !(val & GEN_PLD_W_FULL), 1000, CMD_PKT_STATUS_TIMEOUT_US); if (ret < 0) { - dev_err(dsi->dev, - "failed to get available write payload FIFO\n"); + DRM_DEV_ERROR(dsi->dev, + "failed to get available write payload FIFO\n"); return ret; } } @@ -731,8 +737,8 @@ static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host, ret = dw_mipi_dsi_dcs_long_write(dsi, msg); break; default: - dev_err(dsi->dev, "unsupported message type 0x%02x\n", - msg->type); + DRM_DEV_ERROR(dsi->dev, "unsupported message type 0x%02x\n", + msg->type); ret = -EINVAL; } @@ -935,7 +941,7 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder) return; if (clk_prepare_enable(dsi->pclk)) { - dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__); + DRM_DEV_ERROR(dsi->dev, "Failed to enable pclk\n"); return; } @@ -967,7 +973,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) return; if (clk_prepare_enable(dsi->pclk)) { - dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__); + DRM_DEV_ERROR(dsi->dev, "Failed to enable pclk\n"); return; } @@ -991,7 +997,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) */ ret = clk_prepare_enable(dsi->grf_clk); if (ret) { - dev_err(dsi->dev, "Failed to enable grf_clk: %d\n", ret); + DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret); return; } @@ -1004,7 +1010,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_CMD_MODE); if (drm_panel_prepare(dsi->panel)) - dev_err(dsi->dev, "failed to prepare panel\n"); + DRM_DEV_ERROR(dsi->dev, "failed to prepare panel\n"); dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE); drm_panel_enable(dsi->panel); @@ -1017,7 +1023,8 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) val = pdata->dsi0_en_bit << 16; regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val); - dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG"); + DRM_DEV_DEBUG(dsi->dev, + "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG"); dsi->dpms_mode = DRM_MODE_DPMS_ON; clk_disable_unprepare(dsi->grf_clk); @@ -1111,7 +1118,7 @@ static int dw_mipi_dsi_register(struct drm_device *drm, ret = drm_encoder_init(drm, &dsi->encoder, &dw_mipi_dsi_encoder_funcs, DRM_MODE_ENCODER_DSI, NULL); if (ret) { - dev_err(dev, "Failed to initialize encoder with drm\n"); + DRM_DEV_ERROR(dev, "Failed to initialize encoder with drm\n"); return ret; } @@ -1133,7 +1140,7 @@ static int rockchip_mipi_parse_dt(struct dw_mipi_dsi *dsi) dsi->grf_regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); if (IS_ERR(dsi->grf_regmap)) { - dev_err(dsi->dev, "Unable to get rockchip,grf\n"); + DRM_DEV_ERROR(dsi->dev, "Unable to get rockchip,grf\n"); return PTR_ERR(dsi->grf_regmap); } @@ -1205,14 +1212,15 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, dsi->pllref_clk = devm_clk_get(dev, "ref"); if (IS_ERR(dsi->pllref_clk)) { ret = PTR_ERR(dsi->pllref_clk); - dev_err(dev, "Unable to get pll reference clock: %d\n", ret); + DRM_DEV_ERROR(dev, + "Unable to get pll reference clock: %d\n", ret); return ret; } dsi->pclk = devm_clk_get(dev, "pclk"); if (IS_ERR(dsi->pclk)) { ret = PTR_ERR(dsi->pclk); - dev_err(dev, "Unable to get pclk: %d\n", ret); + DRM_DEV_ERROR(dev, "Unable to get pclk: %d\n", ret); return ret; } @@ -1226,7 +1234,8 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, if (ret == -ENOENT) { apb_rst = NULL; } else { - dev_err(dev, "Unable to get reset control: %d\n", ret); + DRM_DEV_ERROR(dev, + "Unable to get reset control: %d\n", ret); return ret; } } @@ -1234,7 +1243,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, if (apb_rst) { ret = clk_prepare_enable(dsi->pclk); if (ret) { - dev_err(dev, "%s: Failed to enable pclk\n", __func__); + DRM_DEV_ERROR(dev, "Failed to enable pclk\n"); return ret; } @@ -1249,7 +1258,8 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, dsi->phy_cfg_clk = devm_clk_get(dev, "phy_cfg"); if (IS_ERR(dsi->phy_cfg_clk)) { ret = PTR_ERR(dsi->phy_cfg_clk); - dev_err(dev, "Unable to get phy_cfg_clk: %d\n", ret); + DRM_DEV_ERROR(dev, + "Unable to get phy_cfg_clk: %d\n", ret); return ret; } } @@ -1258,20 +1268,20 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, dsi->grf_clk = devm_clk_get(dev, "grf"); if (IS_ERR(dsi->grf_clk)) { ret = PTR_ERR(dsi->grf_clk); - dev_err(dev, "Unable to get grf_clk: %d\n", ret); + DRM_DEV_ERROR(dev, "Unable to get grf_clk: %d\n", ret); return ret; } } ret = clk_prepare_enable(dsi->pllref_clk); if (ret) { - dev_err(dev, "%s: Failed to enable pllref_clk\n", __func__); + DRM_DEV_ERROR(dev, "Failed to enable pllref_clk\n"); return ret; } ret = dw_mipi_dsi_register(drm, dsi); if (ret) { - dev_err(dev, "Failed to register mipi_dsi: %d\n", ret); + DRM_DEV_ERROR(dev, "Failed to register mipi_dsi: %d\n", ret); goto err_pllref; } @@ -1281,7 +1291,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, dsi->dsi_host.dev = dev; ret = mipi_dsi_host_register(&dsi->dsi_host); if (ret) { - dev_err(dev, "Failed to register MIPI host: %d\n", ret); + DRM_DEV_ERROR(dev, "Failed to register MIPI host: %d\n", ret); goto err_cleanup; } diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index ccd5d59..1eb02a8 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -168,7 +168,7 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); if (IS_ERR(hdmi->regmap)) { - dev_err(hdmi->dev, "Unable to get rockchip,grf\n"); + DRM_DEV_ERROR(hdmi->dev, "Unable to get rockchip,grf\n"); return PTR_ERR(hdmi->regmap); } @@ -178,7 +178,7 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) } else if (PTR_ERR(hdmi->vpll_clk) == -EPROBE_DEFER) { return -EPROBE_DEFER; } else if (IS_ERR(hdmi->vpll_clk)) { - dev_err(hdmi->dev, "failed to get grf clock\n"); + DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n"); return PTR_ERR(hdmi->vpll_clk); } @@ -188,13 +188,14 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) } else if (PTR_ERR(hdmi->grf_clk) == -EPROBE_DEFER) { return -EPROBE_DEFER; } else if (IS_ERR(hdmi->grf_clk)) { - dev_err(hdmi->dev, "failed to get grf clock\n"); + DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n"); return PTR_ERR(hdmi->grf_clk); } ret = clk_prepare_enable(hdmi->vpll_clk); if (ret) { - dev_err(hdmi->dev, "Failed to enable HDMI vpll: %d\n", ret); + DRM_DEV_ERROR(hdmi->dev, + "Failed to enable HDMI vpll: %d\n", ret); return ret; } @@ -259,17 +260,17 @@ static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder) ret = clk_prepare_enable(hdmi->grf_clk); if (ret < 0) { - dev_err(hdmi->dev, "failed to enable grfclk %d\n", ret); + DRM_DEV_ERROR(hdmi->dev, "failed to enable grfclk %d\n", ret); return; } ret = regmap_write(hdmi->regmap, hdmi->chip_data->lcdsel_grf_reg, val); if (ret != 0) - dev_err(hdmi->dev, "Could not write to GRF: %d\n", ret); + DRM_DEV_ERROR(hdmi->dev, "Could not write to GRF: %d\n", ret); clk_disable_unprepare(hdmi->grf_clk); - dev_dbg(hdmi->dev, "vop %s output to hdmi\n", - ret ? "LIT" : "BIG"); + DRM_DEV_DEBUG(hdmi->dev, "vop %s output to hdmi\n", + ret ? "LIT" : "BIG"); } static int @@ -368,7 +369,7 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, ret = rockchip_hdmi_parse_dt(hdmi); if (ret) { - dev_err(hdmi->dev, "Unable to parse OF data\n"); + DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n"); return ret; } diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c index 7a251a5..ee584d8 100644 --- a/drivers/gpu/drm/rockchip/inno_hdmi.c +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c @@ -224,7 +224,7 @@ static void inno_hdmi_set_pwr_mode(struct inno_hdmi *hdmi, int mode) break; default: - dev_err(hdmi->dev, "Unknown power mode %d\n", mode); + DRM_DEV_ERROR(hdmi->dev, "Unknown power mode %d\n", mode); } } @@ -742,8 +742,9 @@ static int inno_hdmi_i2c_xfer(struct i2c_adapter *adap, hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY); for (i = 0; i < num; i++) { - dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n", - i + 1, num, msgs[i].len, msgs[i].flags); + DRM_DEV_DEBUG(hdmi->dev, + "xfer: num: %d/%d, len: %d, flags: %#x\n", + i + 1, num, msgs[i].len, msgs[i].flags); if (msgs[i].flags & I2C_M_RD) ret = inno_hdmi_i2c_read(hdmi, &msgs[i]); @@ -806,7 +807,7 @@ static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi) hdmi->i2c = i2c; - dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name); + DRM_DEV_INFO(hdmi->dev, "registered %s I2C bus driver\n", adap->name); return adap; } @@ -838,13 +839,14 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, hdmi->pclk = devm_clk_get(hdmi->dev, "pclk"); if (IS_ERR(hdmi->pclk)) { - dev_err(hdmi->dev, "Unable to get HDMI pclk clk\n"); + DRM_DEV_ERROR(hdmi->dev, "Unable to get HDMI pclk clk\n"); return PTR_ERR(hdmi->pclk); } ret = clk_prepare_enable(hdmi->pclk); if (ret) { - dev_err(hdmi->dev, "Cannot enable HDMI pclk clock: %d\n", ret); + DRM_DEV_ERROR(hdmi->dev, + "Cannot enable HDMI pclk clock: %d\n", ret); return ret; } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index ff3d0f5..76d63de 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -58,7 +58,7 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, ret = iommu_attach_device(private->domain, dev); if (ret) { - dev_err(dev, "Failed to attach iommu device\n"); + DRM_DEV_ERROR(dev, "Failed to attach iommu device\n"); return ret; } @@ -373,8 +373,9 @@ static int rockchip_drm_platform_of_probe(struct device *dev) iommu = of_parse_phandle(port->parent, "iommus", 0); if (!iommu || !of_device_is_available(iommu->parent)) { - dev_dbg(dev, "no iommu attached for %pOF, using non-iommu buffers\n", - port->parent); + DRM_DEV_DEBUG(dev, + "no iommu attached for %pOF, using non-iommu buffers\n", + port->parent); /* * if there is a crtc not support iommu, force set all * crtc use non-iommu buffer. @@ -389,12 +390,13 @@ static int rockchip_drm_platform_of_probe(struct device *dev) } if (i == 0) { - dev_err(dev, "missing 'ports' property\n"); + DRM_DEV_ERROR(dev, "missing 'ports' property\n"); return -ENODEV; } if (!found) { - dev_err(dev, "No available vop found for display-subsystem.\n"); + DRM_DEV_ERROR(dev, + "No available vop found for display-subsystem.\n"); return -ENODEV; } @@ -453,6 +455,8 @@ static int __init rockchip_drm_init(void) num_rockchip_sub_drivers = 0; ADD_ROCKCHIP_SUB_DRIVER(vop_platform_driver, CONFIG_DRM_ROCKCHIP); + ADD_ROCKCHIP_SUB_DRIVER(rockchip_lvds_driver, + CONFIG_ROCKCHIP_LVDS); ADD_ROCKCHIP_SUB_DRIVER(rockchip_dp_driver, CONFIG_ROCKCHIP_ANALOGIX_DP); ADD_ROCKCHIP_SUB_DRIVER(cdn_dp_driver, CONFIG_ROCKCHIP_CDN_DP); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h index c7e96b8..498dfbc 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h @@ -69,5 +69,6 @@ extern struct platform_driver dw_hdmi_rockchip_pltfm_driver; extern struct platform_driver dw_mipi_dsi_driver; extern struct platform_driver inno_hdmi_driver; extern struct platform_driver rockchip_dp_driver; +extern struct platform_driver rockchip_lvds_driver; extern struct platform_driver vop_platform_driver; #endif /* _ROCKCHIP_DRM_DRV_H_ */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c index 7077304..cd2ace0 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c @@ -100,8 +100,9 @@ rockchip_fb_alloc(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cm ret = drm_framebuffer_init(dev, &rockchip_fb->fb, &rockchip_drm_fb_funcs); if (ret) { - dev_err(dev->dev, "Failed to initialize framebuffer: %d\n", - ret); + DRM_DEV_ERROR(dev->dev, + "Failed to initialize framebuffer: %d\n", + ret); kfree(rockchip_fb); return ERR_PTR(ret); } @@ -134,7 +135,8 @@ rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]); if (!obj) { - dev_err(dev->dev, "Failed to lookup GEM object\n"); + DRM_DEV_ERROR(dev->dev, + "Failed to lookup GEM object\n"); ret = -ENXIO; goto err_gem_object_unreference; } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c index 724579e..e665055 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c @@ -76,7 +76,7 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper, fbi = drm_fb_helper_alloc_fbi(helper); if (IS_ERR(fbi)) { - dev_err(dev->dev, "Failed to create framebuffer info.\n"); + DRM_DEV_ERROR(dev->dev, "Failed to create framebuffer info.\n"); ret = PTR_ERR(fbi); goto out; } @@ -84,7 +84,8 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper, helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd, private->fbdev_bo); if (IS_ERR(helper->fb)) { - dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n"); + DRM_DEV_ERROR(dev->dev, + "Failed to allocate DRM framebuffer.\n"); ret = PTR_ERR(helper->fb); goto out; } @@ -138,21 +139,24 @@ int rockchip_drm_fbdev_init(struct drm_device *dev) ret = drm_fb_helper_init(dev, helper, ROCKCHIP_MAX_CONNECTOR); if (ret < 0) { - dev_err(dev->dev, "Failed to initialize drm fb helper - %d.\n", - ret); + DRM_DEV_ERROR(dev->dev, + "Failed to initialize drm fb helper - %d.\n", + ret); return ret; } ret = drm_fb_helper_single_add_all_connectors(helper); if (ret < 0) { - dev_err(dev->dev, "Failed to add connectors - %d.\n", ret); + DRM_DEV_ERROR(dev->dev, + "Failed to add connectors - %d.\n", ret); goto err_drm_fb_helper_fini; } ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); if (ret < 0) { - dev_err(dev->dev, "Failed to set initial hw config - %d.\n", - ret); + DRM_DEV_ERROR(dev->dev, + "Failed to set initial hw config - %d.\n", + ret); goto err_drm_fb_helper_fini; } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index bf9ed0e..19128b4 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -160,7 +160,7 @@ static void vop_reg_set(struct vop *vop, const struct vop_reg *reg, int offset, mask, shift; if (!reg || !reg->mask) { - dev_dbg(vop->dev, "Warning: not support %s\n", reg_name); + DRM_DEV_DEBUG(vop->dev, "Warning: not support %s\n", reg_name); return; } @@ -499,7 +499,7 @@ static int vop_enable(struct drm_crtc *crtc) ret = pm_runtime_get_sync(vop->dev); if (ret < 0) { - dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); + DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret); return ret; } @@ -523,7 +523,8 @@ static int vop_enable(struct drm_crtc *crtc) */ ret = rockchip_drm_dma_attach_device(vop->drm_dev, vop->dev); if (ret) { - dev_err(vop->dev, "failed to attach dma mapping, %d\n", ret); + DRM_DEV_ERROR(vop->dev, + "failed to attach dma mapping, %d\n", ret); goto err_disable_aclk; } @@ -1361,42 +1362,42 @@ static int vop_initial(struct vop *vop) vop->hclk = devm_clk_get(vop->dev, "hclk_vop"); if (IS_ERR(vop->hclk)) { - dev_err(vop->dev, "failed to get hclk source\n"); + DRM_DEV_ERROR(vop->dev, "failed to get hclk source\n"); return PTR_ERR(vop->hclk); } vop->aclk = devm_clk_get(vop->dev, "aclk_vop"); if (IS_ERR(vop->aclk)) { - dev_err(vop->dev, "failed to get aclk source\n"); + DRM_DEV_ERROR(vop->dev, "failed to get aclk source\n"); return PTR_ERR(vop->aclk); } vop->dclk = devm_clk_get(vop->dev, "dclk_vop"); if (IS_ERR(vop->dclk)) { - dev_err(vop->dev, "failed to get dclk source\n"); + DRM_DEV_ERROR(vop->dev, "failed to get dclk source\n"); return PTR_ERR(vop->dclk); } ret = pm_runtime_get_sync(vop->dev); if (ret < 0) { - dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); + DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret); return ret; } ret = clk_prepare(vop->dclk); if (ret < 0) { - dev_err(vop->dev, "failed to prepare dclk\n"); + DRM_DEV_ERROR(vop->dev, "failed to prepare dclk\n"); goto err_put_pm_runtime; } /* Enable both the hclk and aclk to setup the vop */ ret = clk_prepare_enable(vop->hclk); if (ret < 0) { - dev_err(vop->dev, "failed to prepare/enable hclk\n"); + DRM_DEV_ERROR(vop->dev, "failed to prepare/enable hclk\n"); goto err_unprepare_dclk; } ret = clk_prepare_enable(vop->aclk); if (ret < 0) { - dev_err(vop->dev, "failed to prepare/enable aclk\n"); + DRM_DEV_ERROR(vop->dev, "failed to prepare/enable aclk\n"); goto err_disable_hclk; } @@ -1405,7 +1406,7 @@ static int vop_initial(struct vop *vop) */ ahb_rst = devm_reset_control_get(vop->dev, "ahb"); if (IS_ERR(ahb_rst)) { - dev_err(vop->dev, "failed to get ahb reset\n"); + DRM_DEV_ERROR(vop->dev, "failed to get ahb reset\n"); ret = PTR_ERR(ahb_rst); goto err_disable_aclk; } @@ -1434,7 +1435,7 @@ static int vop_initial(struct vop *vop) */ vop->dclk_rst = devm_reset_control_get(vop->dev, "dclk"); if (IS_ERR(vop->dclk_rst)) { - dev_err(vop->dev, "failed to get dclk reset\n"); + DRM_DEV_ERROR(vop->dev, "failed to get dclk reset\n"); ret = PTR_ERR(vop->dclk_rst); goto err_disable_aclk; } @@ -1511,7 +1512,7 @@ int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout) vop_line_flag_irq_disable(vop); if (jiffies_left == 0) { - dev_err(vop->dev, "Timeout waiting for IRQ\n"); + DRM_DEV_ERROR(vop->dev, "Timeout waiting for IRQ\n"); return -ETIMEDOUT; } @@ -1558,7 +1559,7 @@ static int vop_bind(struct device *dev, struct device *master, void *data) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(dev, "cannot find irq for vop\n"); + DRM_DEV_ERROR(dev, "cannot find irq for vop\n"); return irq; } vop->irq = (unsigned int)irq; @@ -1584,7 +1585,8 @@ static int vop_bind(struct device *dev, struct device *master, void *data) ret = vop_initial(vop); if (ret < 0) { - dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret); + DRM_DEV_ERROR(&pdev->dev, + "cannot initial vop dev - err %d\n", ret); goto err_disable_pm_runtime; } diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c new file mode 100644 index 0000000..c5fbe53 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -0,0 +1,581 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: + * Mark Yao <mark.yao@rock-chips.com> + * Sandy Huang <hjc@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <drm/drmP.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_dp_helper.h> +#include <drm/drm_panel.h> +#include <drm/drm_of.h> + +#include <linux/component.h> +#include <linux/clk.h> +#include <linux/mfd/syscon.h> +#include <linux/of_graph.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/reset.h> + +#include "rockchip_drm_drv.h" +#include "rockchip_drm_vop.h" +#include "rockchip_lvds.h" + +#define DISPLAY_OUTPUT_RGB 0 +#define DISPLAY_OUTPUT_LVDS 1 +#define DISPLAY_OUTPUT_DUAL_LVDS 2 + +#define connector_to_lvds(c) \ + container_of(c, struct rockchip_lvds, connector) + +#define encoder_to_lvds(c) \ + container_of(c, struct rockchip_lvds, encoder) + +/** + * rockchip_lvds_soc_data - rockchip lvds Soc private data + * @ch1_offset: lvds channel 1 registe offset + * grf_soc_con6: general registe offset for LVDS contrl + * grf_soc_con7: general registe offset for LVDS contrl + * has_vop_sel: to indicate whether need to choose from different VOP. + */ +struct rockchip_lvds_soc_data { + u32 ch1_offset; + int grf_soc_con6; + int grf_soc_con7; + bool has_vop_sel; +}; + +struct rockchip_lvds { + struct device *dev; + void __iomem *regs; + struct regmap *grf; + struct clk *pclk; + const struct rockchip_lvds_soc_data *soc_data; + int output; /* rgb lvds or dual lvds output */ + int format; /* vesa or jeida format */ + struct drm_device *drm_dev; + struct drm_panel *panel; + struct drm_bridge *bridge; + struct drm_connector connector; + struct drm_encoder encoder; + struct dev_pin_info *pins; +}; + +static inline void lvds_writel(struct rockchip_lvds *lvds, u32 offset, u32 val) +{ + writel_relaxed(val, lvds->regs + offset); + if (lvds->output == DISPLAY_OUTPUT_LVDS) + return; + writel_relaxed(val, lvds->regs + offset + lvds->soc_data->ch1_offset); +} + +static inline int lvds_name_to_format(const char *s) +{ + if (strncmp(s, "jeida-18", 8) == 0) + return LVDS_JEIDA_18; + else if (strncmp(s, "jeida-24", 8) == 0) + return LVDS_JEIDA_24; + else if (strncmp(s, "vesa-24", 7) == 0) + return LVDS_VESA_24; + + return -EINVAL; +} + +static inline int lvds_name_to_output(const char *s) +{ + if (strncmp(s, "rgb", 3) == 0) + return DISPLAY_OUTPUT_RGB; + else if (strncmp(s, "lvds", 4) == 0) + return DISPLAY_OUTPUT_LVDS; + else if (strncmp(s, "duallvds", 8) == 0) + return DISPLAY_OUTPUT_DUAL_LVDS; + + return -EINVAL; +} + +static int rockchip_lvds_poweron(struct rockchip_lvds *lvds) +{ + int ret; + u32 val; + + ret = clk_enable(lvds->pclk); + if (ret < 0) { + DRM_DEV_ERROR(lvds->dev, "failed to enable lvds pclk %d\n", ret); + return ret; + } + ret = pm_runtime_get_sync(lvds->dev); + if (ret < 0) { + DRM_DEV_ERROR(lvds->dev, "failed to get pm runtime: %d\n", ret); + clk_disable(lvds->pclk); + return ret; + } + val = RK3288_LVDS_CH0_REG0_LANE4_EN | RK3288_LVDS_CH0_REG0_LANE3_EN | + RK3288_LVDS_CH0_REG0_LANE2_EN | RK3288_LVDS_CH0_REG0_LANE1_EN | + RK3288_LVDS_CH0_REG0_LANE0_EN; + if (lvds->output == DISPLAY_OUTPUT_RGB) { + val |= RK3288_LVDS_CH0_REG0_TTL_EN | + RK3288_LVDS_CH0_REG0_LANECK_EN; + lvds_writel(lvds, RK3288_LVDS_CH0_REG0, val); + lvds_writel(lvds, RK3288_LVDS_CH0_REG2, + RK3288_LVDS_PLL_FBDIV_REG2(0x46)); + lvds_writel(lvds, RK3288_LVDS_CH0_REG4, + RK3288_LVDS_CH0_REG4_LANECK_TTL_MODE | + RK3288_LVDS_CH0_REG4_LANE4_TTL_MODE | + RK3288_LVDS_CH0_REG4_LANE3_TTL_MODE | + RK3288_LVDS_CH0_REG4_LANE2_TTL_MODE | + RK3288_LVDS_CH0_REG4_LANE1_TTL_MODE | + RK3288_LVDS_CH0_REG4_LANE0_TTL_MODE); + lvds_writel(lvds, RK3288_LVDS_CH0_REG5, + RK3288_LVDS_CH0_REG5_LANECK_TTL_DATA | + RK3288_LVDS_CH0_REG5_LANE4_TTL_DATA | + RK3288_LVDS_CH0_REG5_LANE3_TTL_DATA | + RK3288_LVDS_CH0_REG5_LANE2_TTL_DATA | + RK3288_LVDS_CH0_REG5_LANE1_TTL_DATA | + RK3288_LVDS_CH0_REG5_LANE0_TTL_DATA); + } else { + val |= RK3288_LVDS_CH0_REG0_LVDS_EN | + RK3288_LVDS_CH0_REG0_LANECK_EN; + lvds_writel(lvds, RK3288_LVDS_CH0_REG0, val); + lvds_writel(lvds, RK3288_LVDS_CH0_REG1, + RK3288_LVDS_CH0_REG1_LANECK_BIAS | + RK3288_LVDS_CH0_REG1_LANE4_BIAS | + RK3288_LVDS_CH0_REG1_LANE3_BIAS | + RK3288_LVDS_CH0_REG1_LANE2_BIAS | + RK3288_LVDS_CH0_REG1_LANE1_BIAS | + RK3288_LVDS_CH0_REG1_LANE0_BIAS); + lvds_writel(lvds, RK3288_LVDS_CH0_REG2, + RK3288_LVDS_CH0_REG2_RESERVE_ON | + RK3288_LVDS_CH0_REG2_LANECK_LVDS_MODE | + RK3288_LVDS_CH0_REG2_LANE4_LVDS_MODE | + RK3288_LVDS_CH0_REG2_LANE3_LVDS_MODE | + RK3288_LVDS_CH0_REG2_LANE2_LVDS_MODE | + RK3288_LVDS_CH0_REG2_LANE1_LVDS_MODE | + RK3288_LVDS_CH0_REG2_LANE0_LVDS_MODE | + RK3288_LVDS_PLL_FBDIV_REG2(0x46)); + lvds_writel(lvds, RK3288_LVDS_CH0_REG4, 0x00); + lvds_writel(lvds, RK3288_LVDS_CH0_REG5, 0x00); + } + lvds_writel(lvds, RK3288_LVDS_CH0_REG3, RK3288_LVDS_PLL_FBDIV_REG3(0x46)); + lvds_writel(lvds, RK3288_LVDS_CH0_REGD, RK3288_LVDS_PLL_PREDIV_REGD(0x0a)); + lvds_writel(lvds, RK3288_LVDS_CH0_REG20, RK3288_LVDS_CH0_REG20_LSB); + + lvds_writel(lvds, RK3288_LVDS_CFG_REGC, RK3288_LVDS_CFG_REGC_PLL_ENABLE); + lvds_writel(lvds, RK3288_LVDS_CFG_REG21, RK3288_LVDS_CFG_REG21_TX_ENABLE); + + return 0; +} + +static void rockchip_lvds_poweroff(struct rockchip_lvds *lvds) +{ + int ret; + u32 val; + + lvds_writel(lvds, RK3288_LVDS_CFG_REG21, RK3288_LVDS_CFG_REG21_TX_ENABLE); + lvds_writel(lvds, RK3288_LVDS_CFG_REGC, RK3288_LVDS_CFG_REGC_PLL_ENABLE); + val = LVDS_DUAL | LVDS_TTL_EN | LVDS_CH0_EN | LVDS_CH1_EN | LVDS_PWRDN; + val |= val << 16; + ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con7, val); + if (ret != 0) + DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret); + + pm_runtime_put(lvds->dev); + clk_disable(lvds->pclk); +} + +static const struct drm_connector_funcs rockchip_lvds_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int rockchip_lvds_connector_get_modes(struct drm_connector *connector) +{ + struct rockchip_lvds *lvds = connector_to_lvds(connector); + struct drm_panel *panel = lvds->panel; + + return drm_panel_get_modes(panel); +} + +static const +struct drm_connector_helper_funcs rockchip_lvds_connector_helper_funcs = { + .get_modes = rockchip_lvds_connector_get_modes, +}; + +static void rockchip_lvds_grf_config(struct drm_encoder *encoder, + struct drm_display_mode *mode) +{ + struct rockchip_lvds *lvds = encoder_to_lvds(encoder); + u8 pin_hsync = (mode->flags & DRM_MODE_FLAG_PHSYNC) ? 1 : 0; + u8 pin_dclk = (mode->flags & DRM_MODE_FLAG_PCSYNC) ? 1 : 0; + u32 val; + int ret; + + /* iomux to LCD data/sync mode */ + if (lvds->output == DISPLAY_OUTPUT_RGB) + if (lvds->pins && !IS_ERR(lvds->pins->default_state)) + pinctrl_select_state(lvds->pins->p, + lvds->pins->default_state); + val = lvds->format | LVDS_CH0_EN; + if (lvds->output == DISPLAY_OUTPUT_RGB) + val |= LVDS_TTL_EN | LVDS_CH1_EN; + else if (lvds->output == DISPLAY_OUTPUT_DUAL_LVDS) + val |= LVDS_DUAL | LVDS_CH1_EN; + + if ((mode->htotal - mode->hsync_start) & 0x01) + val |= LVDS_START_PHASE_RST_1; + + val |= (pin_dclk << 8) | (pin_hsync << 9); + val |= (0xffff << 16); + ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con7, val); + if (ret != 0) { + DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret); + return; + } +} + +static int rockchip_lvds_set_vop_source(struct rockchip_lvds *lvds, + struct drm_encoder *encoder) +{ + u32 val; + int ret; + + if (!lvds->soc_data->has_vop_sel) + return 0; + + ret = drm_of_encoder_active_endpoint_id(lvds->dev->of_node, encoder); + if (ret < 0) + return ret; + + val = RK3288_LVDS_SOC_CON6_SEL_VOP_LIT << 16; + if (ret) + val |= RK3288_LVDS_SOC_CON6_SEL_VOP_LIT; + + ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con6, val); + if (ret < 0) + return ret; + + return 0; +} + +static int +rockchip_lvds_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); + + s->output_mode = ROCKCHIP_OUT_MODE_P888; + s->output_type = DRM_MODE_CONNECTOR_LVDS; + + return 0; +} + +static void rockchip_lvds_encoder_enable(struct drm_encoder *encoder) +{ + struct rockchip_lvds *lvds = encoder_to_lvds(encoder); + struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; + int ret; + + drm_panel_prepare(lvds->panel); + ret = rockchip_lvds_poweron(lvds); + if (ret < 0) { + DRM_DEV_ERROR(lvds->dev, "failed to power on lvds: %d\n", ret); + drm_panel_unprepare(lvds->panel); + } + rockchip_lvds_grf_config(encoder, mode); + rockchip_lvds_set_vop_source(lvds, encoder); + drm_panel_enable(lvds->panel); +} + +static void rockchip_lvds_encoder_disable(struct drm_encoder *encoder) +{ + struct rockchip_lvds *lvds = encoder_to_lvds(encoder); + + drm_panel_disable(lvds->panel); + rockchip_lvds_poweroff(lvds); + drm_panel_unprepare(lvds->panel); +} + +static const +struct drm_encoder_helper_funcs rockchip_lvds_encoder_helper_funcs = { + .enable = rockchip_lvds_encoder_enable, + .disable = rockchip_lvds_encoder_disable, + .atomic_check = rockchip_lvds_encoder_atomic_check, +}; + +static const struct drm_encoder_funcs rockchip_lvds_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +static const struct rockchip_lvds_soc_data rk3288_lvds_data = { + .ch1_offset = 0x100, + .grf_soc_con6 = 0x025c, + .grf_soc_con7 = 0x0260, + .has_vop_sel = true, +}; + +static const struct of_device_id rockchip_lvds_dt_ids[] = { + { + .compatible = "rockchip,rk3288-lvds", + .data = &rk3288_lvds_data + }, + {} +}; +MODULE_DEVICE_TABLE(of, rockchip_lvds_dt_ids); + +static int rockchip_lvds_bind(struct device *dev, struct device *master, + void *data) +{ + struct rockchip_lvds *lvds = dev_get_drvdata(dev); + struct drm_device *drm_dev = data; + struct drm_encoder *encoder; + struct drm_connector *connector; + struct device_node *remote = NULL; + struct device_node *port, *endpoint; + int ret; + const char *name; + u32 endpoint_id; + + lvds->drm_dev = drm_dev; + port = of_graph_get_port_by_id(dev->of_node, 1); + if (!port) { + DRM_DEV_ERROR(dev, + "can't found port point, please init lvds panel port!\n"); + return -EINVAL; + } + for_each_child_of_node(port, endpoint) { + of_property_read_u32(endpoint, "reg", &endpoint_id); + ret = drm_of_find_panel_or_bridge(dev->of_node, 1, endpoint_id, + &lvds->panel, &lvds->bridge); + if (!ret) + break; + } + if (ret) { + DRM_DEV_ERROR(dev, "failed to find panel and bridge node\n"); + ret = -EPROBE_DEFER; + goto err_put_port; + } + if (lvds->panel) + remote = lvds->panel->dev->of_node; + else + remote = lvds->bridge->of_node; + if (of_property_read_string(dev->of_node, "rockchip,output", &name)) + /* default set it as output rgb */ + lvds->output = DISPLAY_OUTPUT_RGB; + else + lvds->output = lvds_name_to_output(name); + + if (lvds->output < 0) { + DRM_DEV_ERROR(dev, "invalid output type [%s]\n", name); + ret = lvds->output; + goto err_put_remote; + } + + if (of_property_read_string(remote, "data-mapping", &name)) + /* default set it as format vesa 18 */ + lvds->format = LVDS_VESA_18; + else + lvds->format = lvds_name_to_format(name); + + if (lvds->format < 0) { + DRM_DEV_ERROR(dev, "invalid data-mapping format [%s]\n", name); + ret = lvds->format; + goto err_put_remote; + } + + encoder = &lvds->encoder; + encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev, + dev->of_node); + + ret = drm_encoder_init(drm_dev, encoder, &rockchip_lvds_encoder_funcs, + DRM_MODE_ENCODER_LVDS, NULL); + if (ret < 0) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to initialize encoder: %d\n", ret); + goto err_put_remote; + } + + drm_encoder_helper_add(encoder, &rockchip_lvds_encoder_helper_funcs); + + if (lvds->panel) { + connector = &lvds->connector; + connector->dpms = DRM_MODE_DPMS_OFF; + ret = drm_connector_init(drm_dev, connector, + &rockchip_lvds_connector_funcs, + DRM_MODE_CONNECTOR_LVDS); + if (ret < 0) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to initialize connector: %d\n", ret); + goto err_free_encoder; + } + + drm_connector_helper_add(connector, + &rockchip_lvds_connector_helper_funcs); + + ret = drm_mode_connector_attach_encoder(connector, encoder); + if (ret < 0) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to attach encoder: %d\n", ret); + goto err_free_connector; + } + + ret = drm_panel_attach(lvds->panel, connector); + if (ret < 0) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to attach panel: %d\n", ret); + goto err_free_connector; + } + } else { + lvds->bridge->encoder = encoder; + ret = drm_bridge_attach(encoder, lvds->bridge, NULL); + if (ret) { + DRM_DEV_ERROR(drm_dev->dev, + "failed to attach bridge: %d\n", ret); + goto err_free_encoder; + } + encoder->bridge = lvds->bridge; + } + + pm_runtime_enable(dev); + of_node_put(remote); + of_node_put(port); + + return 0; + +err_free_connector: + drm_connector_cleanup(connector); +err_free_encoder: + drm_encoder_cleanup(encoder); +err_put_remote: + of_node_put(remote); +err_put_port: + of_node_put(port); + + return ret; +} + +static void rockchip_lvds_unbind(struct device *dev, struct device *master, + void *data) +{ + struct rockchip_lvds *lvds = dev_get_drvdata(dev); + + rockchip_lvds_encoder_disable(&lvds->encoder); + if (lvds->panel) + drm_panel_detach(lvds->panel); + pm_runtime_disable(dev); + drm_connector_cleanup(&lvds->connector); + drm_encoder_cleanup(&lvds->encoder); +} + +static const struct component_ops rockchip_lvds_component_ops = { + .bind = rockchip_lvds_bind, + .unbind = rockchip_lvds_unbind, +}; + +static int rockchip_lvds_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct rockchip_lvds *lvds; + const struct of_device_id *match; + struct resource *res; + int ret; + + if (!dev->of_node) + return -ENODEV; + + lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL); + if (!lvds) + return -ENOMEM; + + lvds->dev = dev; + match = of_match_node(rockchip_lvds_dt_ids, dev->of_node); + if (!match) + return -ENODEV; + lvds->soc_data = match->data; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + lvds->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(lvds->regs)) + return PTR_ERR(lvds->regs); + + lvds->pclk = devm_clk_get(&pdev->dev, "pclk_lvds"); + if (IS_ERR(lvds->pclk)) { + DRM_DEV_ERROR(dev, "could not get pclk_lvds\n"); + return PTR_ERR(lvds->pclk); + } + + lvds->pins = devm_kzalloc(lvds->dev, sizeof(*lvds->pins), + GFP_KERNEL); + if (!lvds->pins) + return -ENOMEM; + + lvds->pins->p = devm_pinctrl_get(lvds->dev); + if (IS_ERR(lvds->pins->p)) { + DRM_DEV_ERROR(dev, "no pinctrl handle\n"); + devm_kfree(lvds->dev, lvds->pins); + lvds->pins = NULL; + } else { + lvds->pins->default_state = + pinctrl_lookup_state(lvds->pins->p, "lcdc"); + if (IS_ERR(lvds->pins->default_state)) { + DRM_DEV_ERROR(dev, "no default pinctrl state\n"); + devm_kfree(lvds->dev, lvds->pins); + lvds->pins = NULL; + } + } + + lvds->grf = syscon_regmap_lookup_by_phandle(dev->of_node, + "rockchip,grf"); + if (IS_ERR(lvds->grf)) { + DRM_DEV_ERROR(dev, "missing rockchip,grf property\n"); + return PTR_ERR(lvds->grf); + } + + dev_set_drvdata(dev, lvds); + + ret = clk_prepare(lvds->pclk); + if (ret < 0) { + DRM_DEV_ERROR(dev, "failed to prepare pclk_lvds\n"); + return ret; + } + ret = component_add(&pdev->dev, &rockchip_lvds_component_ops); + if (ret < 0) { + DRM_DEV_ERROR(dev, "failed to add component\n"); + clk_unprepare(lvds->pclk); + } + + return ret; +} + +static int rockchip_lvds_remove(struct platform_device *pdev) +{ + struct rockchip_lvds *lvds = dev_get_drvdata(&pdev->dev); + + component_del(&pdev->dev, &rockchip_lvds_component_ops); + clk_unprepare(lvds->pclk); + + return 0; +} + +struct platform_driver rockchip_lvds_driver = { + .probe = rockchip_lvds_probe, + .remove = rockchip_lvds_remove, + .driver = { + .name = "rockchip-lvds", + .of_match_table = of_match_ptr(rockchip_lvds_dt_ids), + }, +}; diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.h b/drivers/gpu/drm/rockchip/rockchip_lvds.h new file mode 100644 index 0000000..15810b7 --- /dev/null +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.h @@ -0,0 +1,114 @@ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: + * Sandy Huang <hjc@rock-chips.com> + * Mark Yao <mark.yao@rock-chips.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_LVDS_ +#define _ROCKCHIP_LVDS_ + +#define RK3288_LVDS_CH0_REG0 0x00 +#define RK3288_LVDS_CH0_REG0_LVDS_EN BIT(7) +#define RK3288_LVDS_CH0_REG0_TTL_EN BIT(6) +#define RK3288_LVDS_CH0_REG0_LANECK_EN BIT(5) +#define RK3288_LVDS_CH0_REG0_LANE4_EN BIT(4) +#define RK3288_LVDS_CH0_REG0_LANE3_EN BIT(3) +#define RK3288_LVDS_CH0_REG0_LANE2_EN BIT(2) +#define RK3288_LVDS_CH0_REG0_LANE1_EN BIT(1) +#define RK3288_LVDS_CH0_REG0_LANE0_EN BIT(0) + +#define RK3288_LVDS_CH0_REG1 0x04 +#define RK3288_LVDS_CH0_REG1_LANECK_BIAS BIT(5) +#define RK3288_LVDS_CH0_REG1_LANE4_BIAS BIT(4) +#define RK3288_LVDS_CH0_REG1_LANE3_BIAS BIT(3) +#define RK3288_LVDS_CH0_REG1_LANE2_BIAS BIT(2) +#define RK3288_LVDS_CH0_REG1_LANE1_BIAS BIT(1) +#define RK3288_LVDS_CH0_REG1_LANE0_BIAS BIT(0) + +#define RK3288_LVDS_CH0_REG2 0x08 +#define RK3288_LVDS_CH0_REG2_RESERVE_ON BIT(7) +#define RK3288_LVDS_CH0_REG2_LANECK_LVDS_MODE BIT(6) +#define RK3288_LVDS_CH0_REG2_LANE4_LVDS_MODE BIT(5) +#define RK3288_LVDS_CH0_REG2_LANE3_LVDS_MODE BIT(4) +#define RK3288_LVDS_CH0_REG2_LANE2_LVDS_MODE BIT(3) +#define RK3288_LVDS_CH0_REG2_LANE1_LVDS_MODE BIT(2) +#define RK3288_LVDS_CH0_REG2_LANE0_LVDS_MODE BIT(1) +#define RK3288_LVDS_CH0_REG2_PLL_FBDIV8 BIT(0) + +#define RK3288_LVDS_CH0_REG3 0x0c +#define RK3288_LVDS_CH0_REG3_PLL_FBDIV_MASK 0xff + +#define RK3288_LVDS_CH0_REG4 0x10 +#define RK3288_LVDS_CH0_REG4_LANECK_TTL_MODE BIT(5) +#define RK3288_LVDS_CH0_REG4_LANE4_TTL_MODE BIT(4) +#define RK3288_LVDS_CH0_REG4_LANE3_TTL_MODE BIT(3) +#define RK3288_LVDS_CH0_REG4_LANE2_TTL_MODE BIT(2) +#define RK3288_LVDS_CH0_REG4_LANE1_TTL_MODE BIT(1) +#define RK3288_LVDS_CH0_REG4_LANE0_TTL_MODE BIT(0) + +#define RK3288_LVDS_CH0_REG5 0x14 +#define RK3288_LVDS_CH0_REG5_LANECK_TTL_DATA BIT(5) +#define RK3288_LVDS_CH0_REG5_LANE4_TTL_DATA BIT(4) +#define RK3288_LVDS_CH0_REG5_LANE3_TTL_DATA BIT(3) +#define RK3288_LVDS_CH0_REG5_LANE2_TTL_DATA BIT(2) +#define RK3288_LVDS_CH0_REG5_LANE1_TTL_DATA BIT(1) +#define RK3288_LVDS_CH0_REG5_LANE0_TTL_DATA BIT(0) + +#define RK3288_LVDS_CFG_REGC 0x30 +#define RK3288_LVDS_CFG_REGC_PLL_ENABLE 0x00 +#define RK3288_LVDS_CFG_REGC_PLL_DISABLE 0xff + +#define RK3288_LVDS_CH0_REGD 0x34 +#define RK3288_LVDS_CH0_REGD_PLL_PREDIV_MASK 0x1f + +#define RK3288_LVDS_CH0_REG20 0x80 +#define RK3288_LVDS_CH0_REG20_MSB 0x45 +#define RK3288_LVDS_CH0_REG20_LSB 0x44 + +#define RK3288_LVDS_CFG_REG21 0x84 +#define RK3288_LVDS_CFG_REG21_TX_ENABLE 0x92 +#define RK3288_LVDS_CFG_REG21_TX_DISABLE 0x00 +#define RK3288_LVDS_CH1_OFFSET 0x100 + +/* fbdiv value is split over 2 registers, with bit8 in reg2 */ +#define RK3288_LVDS_PLL_FBDIV_REG2(_fbd) \ + (_fbd & BIT(8) ? RK3288_LVDS_CH0_REG2_PLL_FBDIV8 : 0) +#define RK3288_LVDS_PLL_FBDIV_REG3(_fbd) \ + (_fbd & RK3288_LVDS_CH0_REG3_PLL_FBDIV_MASK) +#define RK3288_LVDS_PLL_PREDIV_REGD(_pd) \ + (_pd & RK3288_LVDS_CH0_REGD_PLL_PREDIV_MASK) + +#define RK3288_LVDS_SOC_CON6_SEL_VOP_LIT BIT(3) + +#define LVDS_FMT_MASK (0x07 << 16) +#define LVDS_MSB BIT(3) +#define LVDS_DUAL BIT(4) +#define LVDS_FMT_1 BIT(5) +#define LVDS_TTL_EN BIT(6) +#define LVDS_START_PHASE_RST_1 BIT(7) +#define LVDS_DCLK_INV BIT(8) +#define LVDS_CH0_EN BIT(11) +#define LVDS_CH1_EN BIT(12) +#define LVDS_PWRDN BIT(15) + +#define LVDS_24BIT (0 << 1) +#define LVDS_18BIT (1 << 1) +#define LVDS_FORMAT_VESA (0 << 0) +#define LVDS_FORMAT_JEIDA (1 << 0) + +#define LVDS_VESA_24 0 +#define LVDS_JEIDA_24 1 +#define LVDS_VESA_18 2 +#define LVDS_JEIDA_18 3 + +#endif /* _ROCKCHIP_LVDS_ */ diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index 94de7b9..4a39049 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -533,7 +533,7 @@ static int vop_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; if (!dev->of_node) { - dev_err(dev, "can't find vop devices\n"); + DRM_DEV_ERROR(dev, "can't find vop devices\n"); return -ENODEV; } diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index 1700c54..9e93431 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -16,6 +16,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_of.h> @@ -145,7 +146,7 @@ static void sti_output_poll_changed(struct drm_device *ddev) } static const struct drm_mode_config_funcs sti_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = sti_output_poll_changed, .atomic_check = sti_atomic_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c index 852bf22..83314ae 100644 --- a/drivers/gpu/drm/sti/sti_dvo.c +++ b/drivers/gpu/drm/sti/sti_dvo.c @@ -463,11 +463,7 @@ static int sti_dvo_bind(struct device *dev, struct device *master, void *data) bridge->driver_private = dvo; bridge->funcs = &sti_dvo_bridge_funcs; bridge->of_node = dvo->dev.of_node; - err = drm_bridge_add(bridge); - if (err) { - DRM_ERROR("Failed to add bridge\n"); - return err; - } + drm_bridge_add(bridge); err = drm_bridge_attach(encoder, bridge, NULL); if (err) { diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c index b333b37..c857663 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -17,6 +17,7 @@ #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include "ltdc.h" @@ -31,7 +32,7 @@ static void drv_output_poll_changed(struct drm_device *ddev) } static const struct drm_mode_config_funcs drv_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = drv_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index 568c5d0..e5b6310 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -113,11 +113,13 @@ static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt) static int dsi_pll_get_clkout_khz(int clkin_khz, int idf, int ndiv, int odf) { + int divisor = idf * odf; + /* prevent from division by 0 */ - if (idf * odf) - return DIV_ROUND_CLOSEST(clkin_khz * ndiv, idf * odf); + if (!divisor) + return 0; - return 0; + return DIV_ROUND_CLOSEST(clkin_khz * ndiv, divisor); } static int dsi_pll_get_params(int clkin_khz, int clkout_khz, diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index ace5965..a201263 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -106,11 +106,6 @@ static int sun4i_drv_bind(struct device *dev) goto free_drm; } - /* drm_vblank_init calls kcalloc, which can fail */ - ret = drm_vblank_init(drm, 1); - if (ret) - goto free_mem_region; - drm_mode_config_init(drm); ret = component_bind_all(drm->dev, drm); @@ -119,6 +114,11 @@ static int sun4i_drv_bind(struct device *dev) goto cleanup_mode_config; } + /* drm_vblank_init calls kcalloc, which can fail */ + ret = drm_vblank_init(drm, drm->mode_config.num_crtc); + if (ret) + goto free_mem_region; + drm->irq_enabled = true; /* Remove early framebuffers (ie. simplefb) */ @@ -200,11 +200,39 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == data; } +/* + * The encoder drivers use drm_of_find_possible_crtcs to get upstream + * crtcs from the device tree using of_graph. For the results to be + * correct, encoders must be probed/bound after _all_ crtcs have been + * created. The existing code uses a depth first recursive traversal + * of the of_graph, which means the encoders downstream of the TCON + * get add right after the first TCON. The second TCON or CRTC will + * never be properly associated with encoders connected to it. + * + * Also, in a dual display pipeline setup, both frontends can feed + * either backend, and both backends can feed either TCON, we want + * all components of the same type to be added before the next type + * in the pipeline. Fortunately, the pipelines are perfectly symmetric, + * i.e. components of the same type are at the same depth when counted + * from the frontend. The only exception is the third pipeline in + * the A80 SoC, which we do not support anyway. + * + * Hence we can use a breadth first search traversal order to add + * components. We do not need to check for duplicates. The component + * matching system handles this for us. + */ +struct endpoint_list { + struct device_node *node; + struct list_head list; +}; + static int sun4i_drv_add_endpoints(struct device *dev, + struct list_head *endpoints, struct component_match **match, struct device_node *node) { struct device_node *port, *ep, *remote; + struct endpoint_list *endpoint; int count = 0; /* @@ -264,10 +292,15 @@ static int sun4i_drv_add_endpoints(struct device *dev, } } - /* Walk down our tree */ - count += sun4i_drv_add_endpoints(dev, match, remote); + /* Add downstream nodes to the queue */ + endpoint = kzalloc(sizeof(*endpoint), GFP_KERNEL); + if (!endpoint) { + of_node_put(remote); + return -ENOMEM; + } - of_node_put(remote); + endpoint->node = remote; + list_add_tail(&endpoint->list, endpoints); } return count; @@ -277,7 +310,9 @@ static int sun4i_drv_probe(struct platform_device *pdev) { struct component_match *match = NULL; struct device_node *np = pdev->dev.of_node; - int i, count = 0; + struct endpoint_list *endpoint, *endpoint_temp; + int i, ret, count = 0; + LIST_HEAD(endpoints); for (i = 0;; i++) { struct device_node *pipeline = of_parse_phandle(np, @@ -286,12 +321,31 @@ static int sun4i_drv_probe(struct platform_device *pdev) if (!pipeline) break; - count += sun4i_drv_add_endpoints(&pdev->dev, &match, - pipeline); - of_node_put(pipeline); + endpoint = kzalloc(sizeof(*endpoint), GFP_KERNEL); + if (!endpoint) { + ret = -ENOMEM; + goto err_free_endpoints; + } - DRM_DEBUG_DRIVER("Queued %d outputs on pipeline %d\n", - count, i); + endpoint->node = pipeline; + list_add_tail(&endpoint->list, &endpoints); + } + + list_for_each_entry_safe(endpoint, endpoint_temp, &endpoints, list) { + /* process this endpoint */ + ret = sun4i_drv_add_endpoints(&pdev->dev, &endpoints, &match, + endpoint->node); + + /* sun4i_drv_add_endpoints can fail to allocate memory */ + if (ret < 0) + goto err_free_endpoints; + + count += ret; + + /* delete and cleanup the current entry */ + list_del(&endpoint->list); + of_node_put(endpoint->node); + kfree(endpoint); } if (count) @@ -300,6 +354,15 @@ static int sun4i_drv_probe(struct platform_device *pdev) match); else return 0; + +err_free_endpoints: + list_for_each_entry_safe(endpoint, endpoint_temp, &endpoints, list) { + list_del(&endpoint->list); + of_node_put(endpoint->node); + kfree(endpoint); + } + + return ret; } static int sun4i_drv_remove(struct platform_device *pdev) diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index d979129..e853dfe5 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -463,42 +463,170 @@ static int sun4i_tcon_init_regmap(struct device *dev, * function in fact searches the corresponding engine, and the ID is * requested via the get_id function of the engine. */ -static struct sunxi_engine *sun4i_tcon_find_engine(struct sun4i_drv *drv, - struct device_node *node) +static struct sunxi_engine * +sun4i_tcon_find_engine_traverse(struct sun4i_drv *drv, + struct device_node *node) { struct device_node *port, *ep, *remote; - struct sunxi_engine *engine; + struct sunxi_engine *engine = ERR_PTR(-EINVAL); port = of_graph_get_port_by_id(node, 0); if (!port) return ERR_PTR(-EINVAL); + /* + * This only works if there is only one path from the TCON + * to any display engine. Otherwise the probe order of the + * TCONs and display engines is not guaranteed. They may + * either bind to the wrong one, or worse, bind to the same + * one if additional checks are not done. + * + * Bail out if there are multiple input connections. + */ + if (of_get_available_child_count(port) != 1) + goto out_put_port; + + /* Get the first connection without specifying an ID */ + ep = of_get_next_available_child(port, NULL); + if (!ep) + goto out_put_port; + + remote = of_graph_get_remote_port_parent(ep); + if (!remote) + goto out_put_ep; + + /* does this node match any registered engines? */ + list_for_each_entry(engine, &drv->engine_list, list) + if (remote == engine->node) + goto out_put_remote; + + /* keep looking through upstream ports */ + engine = sun4i_tcon_find_engine_traverse(drv, remote); + +out_put_remote: + of_node_put(remote); +out_put_ep: + of_node_put(ep); +out_put_port: + of_node_put(port); + + return engine; +} + +/* + * The device tree binding says that the remote endpoint ID of any + * connection between components, up to and including the TCON, of + * the display pipeline should be equal to the actual ID of the local + * component. Thus we can look at any one of the input connections of + * the TCONs, and use that connection's remote endpoint ID as our own. + * + * Since the user of this function already finds the input port, + * the port is passed in directly without further checks. + */ +static int sun4i_tcon_of_get_id_from_port(struct device_node *port) +{ + struct device_node *ep; + int ret = -EINVAL; + + /* try finding an upstream endpoint */ for_each_available_child_of_node(port, ep) { - remote = of_graph_get_remote_port_parent(ep); + struct device_node *remote; + u32 reg; + + remote = of_graph_get_remote_endpoint(ep); if (!remote) continue; - /* does this node match any registered engines? */ - list_for_each_entry(engine, &drv->engine_list, list) { - if (remote == engine->node) { - of_node_put(remote); - of_node_put(port); - return engine; - } - } + ret = of_property_read_u32(remote, "reg", ®); + if (ret) + continue; - /* keep looking through upstream ports */ - engine = sun4i_tcon_find_engine(drv, remote); - if (!IS_ERR(engine)) { - of_node_put(remote); - of_node_put(port); - return engine; - } + ret = reg; } + return ret; +} + +/* + * Once we know the TCON's id, we can look through the list of + * engines to find a matching one. We assume all engines have + * been probed and added to the list. + */ +static struct sunxi_engine *sun4i_tcon_get_engine_by_id(struct sun4i_drv *drv, + int id) +{ + struct sunxi_engine *engine; + + list_for_each_entry(engine, &drv->engine_list, list) + if (engine->id == id) + return engine; + return ERR_PTR(-EINVAL); } +/* + * On SoCs with the old display pipeline design (Display Engine 1.0), + * we assumed the TCON was always tied to just one backend. However + * this proved not to be the case. On the A31, the TCON can select + * either backend as its source. On the A20 (and likely on the A10), + * the backend can choose which TCON to output to. + * + * The device tree binding says that the remote endpoint ID of any + * connection between components, up to and including the TCON, of + * the display pipeline should be equal to the actual ID of the local + * component. Thus we should be able to look at any one of the input + * connections of the TCONs, and use that connection's remote endpoint + * ID as our own. + * + * However the connections between the backend and TCON were assumed + * to be always singular, and their endpoit IDs were all incorrectly + * set to 0. This means for these old device trees, we cannot just look + * up the remote endpoint ID of a TCON input endpoint. TCON1 would be + * incorrectly identified as TCON0. + * + * This function first checks if the TCON node has 2 input endpoints. + * If so, then the device tree is a corrected version, and it will use + * sun4i_tcon_of_get_id() and sun4i_tcon_get_engine_by_id() from above + * to fetch the ID and engine directly. If not, then it is likely an + * old device trees, where the endpoint IDs were incorrect, but did not + * have endpoint connections between the backend and TCON across + * different display pipelines. It will fall back to the old method of + * traversing the of_graph to try and find a matching engine by device + * node. + * + * In the case of single display pipeline device trees, either method + * works. + */ +static struct sunxi_engine *sun4i_tcon_find_engine(struct sun4i_drv *drv, + struct device_node *node) +{ + struct device_node *port; + struct sunxi_engine *engine; + + port = of_graph_get_port_by_id(node, 0); + if (!port) + return ERR_PTR(-EINVAL); + + /* + * Is this a corrected device tree with cross pipeline + * connections between the backend and TCON? + */ + if (of_get_child_count(port) > 1) { + /* Get our ID directly from an upstream endpoint */ + int id = sun4i_tcon_of_get_id_from_port(port); + + /* Get our engine by matching our ID */ + engine = sun4i_tcon_get_engine_by_id(drv, id); + + of_node_put(port); + return engine; + } + + /* Fallback to old method by traversing input endpoints */ + of_node_put(port); + return sun4i_tcon_find_engine_traverse(drv, node); +} + static int sun4i_tcon_bind(struct device *dev, struct device *master, void *data) { @@ -530,10 +658,7 @@ static int sun4i_tcon_bind(struct device *dev, struct device *master, } /* Make sure our TCON is reset */ - if (!reset_control_status(tcon->lcd_rst)) - reset_control_assert(tcon->lcd_rst); - - ret = reset_control_deassert(tcon->lcd_rst); + ret = reset_control_reset(tcon->lcd_rst); if (ret) { dev_err(dev, "Couldn't deassert our reset line\n"); return ret; @@ -574,6 +699,25 @@ static int sun4i_tcon_bind(struct device *dev, struct device *master, if (ret < 0) goto err_free_clocks; + if (tcon->quirks->needs_de_be_mux) { + /* + * We assume there is no dynamic muxing of backends + * and TCONs, so we select the backend with same ID. + * + * While dynamic selection might be interesting, since + * the CRTC is tied to the TCON, while the layers are + * tied to the backends, this means, we will need to + * switch between groups of layers. There might not be + * a way to represent this constraint in DRM. + */ + regmap_update_bits(tcon->regs, SUN4I_TCON0_CTL_REG, + SUN4I_TCON0_CTL_SRC_SEL_MASK, + tcon->id); + regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG, + SUN4I_TCON1_CTL_SRC_SEL_MASK, + tcon->id); + } + list_add_tail(&tcon->list, &drv->tcon_list); return 0; @@ -629,11 +773,13 @@ static const struct sun4i_tcon_quirks sun5i_a13_quirks = { }; static const struct sun4i_tcon_quirks sun6i_a31_quirks = { - .has_channel_1 = true, + .has_channel_1 = true, + .needs_de_be_mux = true, }; static const struct sun4i_tcon_quirks sun6i_a31s_quirks = { - .has_channel_1 = true, + .has_channel_1 = true, + .needs_de_be_mux = true, }; static const struct sun4i_tcon_quirks sun8i_a33_quirks = { diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h index 552c88e..5a219d1 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.h +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h @@ -37,6 +37,7 @@ #define SUN4I_TCON0_CTL_TCON_ENABLE BIT(31) #define SUN4I_TCON0_CTL_CLK_DELAY_MASK GENMASK(8, 4) #define SUN4I_TCON0_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON0_CTL_CLK_DELAY_MASK) +#define SUN4I_TCON0_CTL_SRC_SEL_MASK GENMASK(2, 0) #define SUN4I_TCON0_DCLK_REG 0x44 #define SUN4I_TCON0_DCLK_GATE_BIT (31) @@ -85,6 +86,7 @@ #define SUN4I_TCON1_CTL_INTERLACE_ENABLE BIT(20) #define SUN4I_TCON1_CTL_CLK_DELAY_MASK GENMASK(8, 4) #define SUN4I_TCON1_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON1_CTL_CLK_DELAY_MASK) +#define SUN4I_TCON1_CTL_SRC_SEL_MASK GENMASK(1, 0) #define SUN4I_TCON1_BASIC0_REG 0x94 #define SUN4I_TCON1_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16) @@ -146,6 +148,7 @@ struct sun4i_tcon_quirks { bool has_unknown_mux; /* sun5i has undocumented mux */ bool has_channel_1; /* a33 does not have channel 1 */ + bool needs_de_be_mux; /* sun6i needs mux to select backend */ }; struct sun4i_tcon { diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index b0d70f9..146ac9a 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -23,6 +23,7 @@ #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fb_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include "tilcdc_drv.h" #include "tilcdc_regs.h" @@ -65,7 +66,7 @@ static struct of_device_id tilcdc_of_match[]; static struct drm_framebuffer *tilcdc_fb_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) { - return drm_fb_cma_create(dev, file_priv, mode_cmd); + return drm_gem_fb_create(dev, file_priv, mode_cmd); } static void tilcdc_fb_output_poll_changed(struct drm_device *dev) diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c index 7e5bb7d..7fd2691 100644 --- a/drivers/gpu/drm/tinydrm/mi0283qt.c +++ b/drivers/gpu/drm/tinydrm/mi0283qt.c @@ -163,7 +163,6 @@ MODULE_DEVICE_TABLE(spi, mi0283qt_id); static int mi0283qt_probe(struct spi_device *spi) { struct device *dev = &spi->dev; - struct tinydrm_device *tdev; struct mipi_dbi *mipi; struct gpio_desc *dc; u32 rotation = 0; @@ -215,20 +214,9 @@ static int mi0283qt_probe(struct spi_device *spi) return ret; } - tdev = &mipi->tinydrm; - - ret = devm_tinydrm_register(tdev); - if (ret) - return ret; - spi_set_drvdata(spi, mipi); - DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n", - tdev->drm->driver->name, dev_name(dev), - spi->max_speed_hz / 1000000, - tdev->drm->primary->index); - - return 0; + return devm_tinydrm_register(&mipi->tinydrm); } static void mi0283qt_shutdown(struct spi_device *spi) diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c index 2caeabc..f0dedc2 100644 --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c @@ -842,6 +842,8 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi, return -ENOMEM; } + DRM_DEBUG_DRIVER("SPI speed: %uMHz\n", spi->max_speed_hz / 1000000); + return 0; } EXPORT_SYMBOL(mipi_dbi_spi_init); diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c index 30dc97b..5fbe147 100644 --- a/drivers/gpu/drm/tinydrm/repaper.c +++ b/drivers/gpu/drm/tinydrm/repaper.c @@ -1078,19 +1078,11 @@ static int repaper_probe(struct spi_device *spi) return ret; drm_mode_config_reset(tdev->drm); - - ret = devm_tinydrm_register(tdev); - if (ret) - return ret; - spi_set_drvdata(spi, tdev); - DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n", - tdev->drm->driver->name, dev_name(dev), - spi->max_speed_hz / 1000000, - tdev->drm->primary->index); + DRM_DEBUG_DRIVER("SPI speed: %uMHz\n", spi->max_speed_hz / 1000000); - return 0; + return devm_tinydrm_register(tdev); } static void repaper_shutdown(struct spi_device *spi) diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c index b439956..07b4d31 100644 --- a/drivers/gpu/drm/tinydrm/st7586.c +++ b/drivers/gpu/drm/tinydrm/st7586.c @@ -343,7 +343,6 @@ MODULE_DEVICE_TABLE(spi, st7586_id); static int st7586_probe(struct spi_device *spi) { struct device *dev = &spi->dev; - struct tinydrm_device *tdev; struct mipi_dbi *mipi; struct gpio_desc *a0; u32 rotation = 0; @@ -388,20 +387,9 @@ static int st7586_probe(struct spi_device *spi) if (ret) return ret; - tdev = &mipi->tinydrm; - - ret = devm_tinydrm_register(tdev); - if (ret) - return ret; - spi_set_drvdata(spi, mipi); - DRM_DEBUG_DRIVER("Initialized %s:%s @%uMHz on minor %d\n", - tdev->drm->driver->name, dev_name(dev), - spi->max_speed_hz / 1000000, - tdev->drm->primary->index); - - return 0; + return devm_tinydrm_register(&mipi->tinydrm); } static void st7586_shutdown(struct spi_device *spi) diff --git a/drivers/gpu/drm/tve200/Kconfig b/drivers/gpu/drm/tve200/Kconfig new file mode 100644 index 0000000..c5f03bf --- /dev/null +++ b/drivers/gpu/drm/tve200/Kconfig @@ -0,0 +1,16 @@ +config DRM_TVE200 + tristate "DRM Support for Faraday TV Encoder TVE200" + depends on DRM + depends on CMA + depends on ARM || COMPILE_TEST + depends on OF + select DRM_BRIDGE + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select DRM_KMS_CMA_HELPER + select DRM_GEM_CMA_HELPER + select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE + help + Choose this option for DRM support for the Faraday TV Encoder + TVE200 Controller. + If M is selected the module will be called tve200_drm. diff --git a/drivers/gpu/drm/tve200/Makefile b/drivers/gpu/drm/tve200/Makefile new file mode 100644 index 0000000..6b7a6a1 --- /dev/null +++ b/drivers/gpu/drm/tve200/Makefile @@ -0,0 +1,4 @@ +tve200_drm-y += tve200_display.o \ + tve200_drv.o + +obj-$(CONFIG_DRM_TVE200) += tve200_drm.o diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c new file mode 100644 index 0000000..18457de --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_display.c @@ -0,0 +1,337 @@ +/* + * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org> + * Parts of this file were based on sources as follows: + * + * Copyright (C) 2006-2008 Intel Corporation + * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com> + * Copyright (C) 2007 Dave Airlie <airlied@linux.ie> + * Copyright (C) 2011 Texas Instruments + * Copyright (C) 2017 Eric Anholt + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms of + * such GNU licence. + */ +#include <linux/clk.h> +#include <linux/version.h> +#include <linux/dma-buf.h> +#include <linux/of_graph.h> + +#include <drm/drmP.h> +#include <drm/drm_panel.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_fb_cma_helper.h> + +#include "tve200_drm.h" + +irqreturn_t tve200_irq(int irq, void *data) +{ + struct tve200_drm_dev_private *priv = data; + u32 stat; + u32 val; + + stat = readl(priv->regs + TVE200_INT_STAT); + + if (!stat) + return IRQ_NONE; + + /* + * Vblank IRQ + * + * The hardware is a bit tilted: the line stays high after clearing + * the vblank IRQ, firing many more interrupts. We counter this + * by toggling the IRQ back and forth from firing at vblank and + * firing at start of active image, which works around the problem + * since those occur strictly in sequence, and we get two IRQs for each + * frame, one at start of Vblank (that we make call into the CRTC) and + * another one at the start of the image (that we discard). + */ + if (stat & TVE200_INT_V_STATUS) { + val = readl(priv->regs + TVE200_CTRL); + /* We have an actual start of vsync */ + if (!(val & TVE200_VSTSTYPE_BITS)) { + drm_crtc_handle_vblank(&priv->pipe.crtc); + /* Toggle trigger to start of active image */ + val |= TVE200_VSTSTYPE_VAI; + } else { + /* Toggle trigger back to start of vsync */ + val &= ~TVE200_VSTSTYPE_BITS; + } + writel(val, priv->regs + TVE200_CTRL); + } else + dev_err(priv->drm->dev, "stray IRQ %08x\n", stat); + + /* Clear the interrupt once done */ + writel(stat, priv->regs + TVE200_INT_CLR); + + return IRQ_HANDLED; +} + +static int tve200_display_check(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *pstate, + struct drm_crtc_state *cstate) +{ + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *old_fb = pipe->plane.state->fb; + struct drm_framebuffer *fb = pstate->fb; + + /* + * We support these specific resolutions and nothing else. + */ + if (!(mode->hdisplay == 352 && mode->vdisplay == 240) && /* SIF(525) */ + !(mode->hdisplay == 352 && mode->vdisplay == 288) && /* CIF(625) */ + !(mode->hdisplay == 640 && mode->vdisplay == 480) && /* VGA */ + !(mode->hdisplay == 720 && mode->vdisplay == 480) && /* D1 */ + !(mode->hdisplay == 720 && mode->vdisplay == 576)) { /* D1 */ + DRM_DEBUG_KMS("unsupported display mode (%u x %u)\n", + mode->hdisplay, mode->vdisplay); + return -EINVAL; + } + + if (fb) { + u32 offset = drm_fb_cma_get_gem_addr(fb, pstate, 0); + + /* FB base address must be dword aligned. */ + if (offset & 3) { + DRM_DEBUG_KMS("FB not 32-bit aligned\n"); + return -EINVAL; + } + + /* + * There's no pitch register, the mode's hdisplay + * controls this. + */ + if (fb->pitches[0] != mode->hdisplay * fb->format->cpp[0]) { + DRM_DEBUG_KMS("can't handle pitches\n"); + return -EINVAL; + } + + /* + * We can't change the FB format in a flicker-free + * manner (and only update it during CRTC enable). + */ + if (old_fb && old_fb->format != fb->format) + cstate->mode_changed = true; + } + + return 0; +} + +static void tve200_display_enable(struct drm_simple_display_pipe *pipe, + struct drm_crtc_state *cstate) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_plane *plane = &pipe->plane; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *fb = plane->state->fb; + struct drm_connector *connector = priv->connector; + u32 format = fb->format->format; + u32 ctrl1 = 0; + + clk_prepare_enable(priv->clk); + + /* Function 1 */ + ctrl1 |= TVE200_CTRL_CSMODE; + /* Interlace mode for CCIR656: parameterize? */ + ctrl1 |= TVE200_CTRL_NONINTERLACE; + /* 32 words per burst */ + ctrl1 |= TVE200_CTRL_BURST_32_WORDS; + /* 16 retries */ + ctrl1 |= TVE200_CTRL_RETRYCNT_16; + /* NTSC mode: parametrize? */ + ctrl1 |= TVE200_CTRL_NTSC; + + /* Vsync IRQ at start of Vsync at first */ + ctrl1 |= TVE200_VSTSTYPE_VSYNC; + + if (connector->display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE) + ctrl1 |= TVE200_CTRL_TVCLKP; + + if ((mode->hdisplay == 352 && mode->vdisplay == 240) || /* SIF(525) */ + (mode->hdisplay == 352 && mode->vdisplay == 288)) { /* CIF(625) */ + ctrl1 |= TVE200_CTRL_IPRESOL_CIF; + dev_info(drm->dev, "CIF mode\n"); + } else if (mode->hdisplay == 640 && mode->vdisplay == 480) { + ctrl1 |= TVE200_CTRL_IPRESOL_VGA; + dev_info(drm->dev, "VGA mode\n"); + } else if ((mode->hdisplay == 720 && mode->vdisplay == 480) || + (mode->hdisplay == 720 && mode->vdisplay == 576)) { + ctrl1 |= TVE200_CTRL_IPRESOL_D1; + dev_info(drm->dev, "D1 mode\n"); + } + + if (format & DRM_FORMAT_BIG_ENDIAN) { + ctrl1 |= TVE200_CTRL_BBBP; + format &= ~DRM_FORMAT_BIG_ENDIAN; + } + + switch (format) { + case DRM_FORMAT_XRGB8888: + ctrl1 |= TVE200_IPDMOD_RGB888; + break; + case DRM_FORMAT_RGB565: + ctrl1 |= TVE200_IPDMOD_RGB565; + break; + case DRM_FORMAT_XRGB1555: + ctrl1 |= TVE200_IPDMOD_RGB555; + break; + case DRM_FORMAT_XBGR8888: + ctrl1 |= TVE200_IPDMOD_RGB888 | TVE200_BGR; + break; + case DRM_FORMAT_BGR565: + ctrl1 |= TVE200_IPDMOD_RGB565 | TVE200_BGR; + break; + case DRM_FORMAT_XBGR1555: + ctrl1 |= TVE200_IPDMOD_RGB555 | TVE200_BGR; + break; + case DRM_FORMAT_YUYV: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0; + break; + case DRM_FORMAT_YVYU: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0; + break; + case DRM_FORMAT_UYVY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0; + break; + case DRM_FORMAT_VYUY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0; + break; + case DRM_FORMAT_YUV420: + ctrl1 |= TVE200_CTRL_YUV420; + ctrl1 |= TVE200_IPDMOD_YUV420; + break; + default: + dev_err(drm->dev, "Unknown FB format 0x%08x\n", + fb->format->format); + break; + } + + ctrl1 |= TVE200_TVEEN; + + /* Turn it on */ + writel(ctrl1, priv->regs + TVE200_CTRL); + + drm_crtc_vblank_on(crtc); +} + +void tve200_display_disable(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + + drm_crtc_vblank_off(crtc); + + /* Disable and Power Down */ + writel(0, priv->regs + TVE200_CTRL); + + clk_disable_unprepare(priv->clk); +} + +static void tve200_display_update(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *old_pstate) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + struct drm_pending_vblank_event *event = crtc->state->event; + struct drm_plane *plane = &pipe->plane; + struct drm_plane_state *pstate = plane->state; + struct drm_framebuffer *fb = pstate->fb; + + if (fb) { + /* For RGB, the Y component is used as base address */ + writel(drm_fb_cma_get_gem_addr(fb, pstate, 0), + priv->regs + TVE200_Y_FRAME_BASE_ADDR); + + /* For three plane YUV we need two more addresses */ + if (fb->format->format == DRM_FORMAT_YUV420) { + writel(drm_fb_cma_get_gem_addr(fb, pstate, 1), + priv->regs + TVE200_U_FRAME_BASE_ADDR); + writel(drm_fb_cma_get_gem_addr(fb, pstate, 2), + priv->regs + TVE200_V_FRAME_BASE_ADDR); + } + } + + if (event) { + crtc->state->event = NULL; + + spin_lock_irq(&crtc->dev->event_lock); + if (crtc->state->active && drm_crtc_vblank_get(crtc) == 0) + drm_crtc_arm_vblank_event(crtc, event); + else + drm_crtc_send_vblank_event(crtc, event); + spin_unlock_irq(&crtc->dev->event_lock); + } +} + +int tve200_enable_vblank(struct drm_device *drm, unsigned int crtc) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + + writel(TVE200_INT_V_STATUS, priv->regs + TVE200_INT_EN); + return 0; +} + +void tve200_disable_vblank(struct drm_device *drm, unsigned int crtc) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + + writel(0, priv->regs + TVE200_INT_EN); +} + +static int tve200_display_prepare_fb(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state) +{ + return drm_fb_cma_prepare_fb(&pipe->plane, plane_state); +} + +const struct drm_simple_display_pipe_funcs tve200_display_funcs = { + .check = tve200_display_check, + .enable = tve200_display_enable, + .disable = tve200_display_disable, + .update = tve200_display_update, + .prepare_fb = tve200_display_prepare_fb, +}; + +int tve200_display_init(struct drm_device *drm) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + int ret; + static const u32 formats[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGB565, + DRM_FORMAT_BGR565, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_XBGR1555, + /* + * The controller actually supports any YCbCr ordering, + * for packed YCbCr. This just lists the orderings that + * DRM supports. + */ + DRM_FORMAT_YUYV, + DRM_FORMAT_YVYU, + DRM_FORMAT_UYVY, + DRM_FORMAT_VYUY, + /* This uses three planes */ + DRM_FORMAT_YUV420, + }; + + ret = drm_simple_display_pipe_init(drm, &priv->pipe, + &tve200_display_funcs, + formats, ARRAY_SIZE(formats), + NULL, + priv->connector); + if (ret) + return ret; + + return 0; +} diff --git a/drivers/gpu/drm/tve200/tve200_drm.h b/drivers/gpu/drm/tve200/tve200_drm.h new file mode 100644 index 0000000..628b793 --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_drm.h @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org> + * Parts of this file were based on sources as follows: + * + * Copyright (C) 2006-2008 Intel Corporation + * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com> + * Copyright (C) 2007 Dave Airlie <airlied@linux.ie> + * Copyright (C) 2011 Texas Instruments + * Copyright (C) 2017 Eric Anholt + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms of + * such GNU licence. + */ + +#ifndef _TVE200_DRM_H_ +#define _TVE200_DRM_H_ + +/* Bits 2-31 are valid physical base addresses */ +#define TVE200_Y_FRAME_BASE_ADDR 0x00 +#define TVE200_U_FRAME_BASE_ADDR 0x04 +#define TVE200_V_FRAME_BASE_ADDR 0x08 + +#define TVE200_INT_EN 0x0C +#define TVE200_INT_CLR 0x10 +#define TVE200_INT_STAT 0x14 +#define TVE200_INT_BUS_ERR BIT(7) +#define TVE200_INT_V_STATUS BIT(6) /* vertical blank */ +#define TVE200_INT_V_NEXT_FRAME BIT(5) +#define TVE200_INT_U_NEXT_FRAME BIT(4) +#define TVE200_INT_Y_NEXT_FRAME BIT(3) +#define TVE200_INT_V_FIFO_UNDERRUN BIT(2) +#define TVE200_INT_U_FIFO_UNDERRUN BIT(1) +#define TVE200_INT_Y_FIFO_UNDERRUN BIT(0) +#define TVE200_FIFO_UNDERRUNS (TVE200_INT_V_FIFO_UNDERRUN | \ + TVE200_INT_U_FIFO_UNDERRUN | \ + TVE200_INT_Y_FIFO_UNDERRUN) + +#define TVE200_CTRL 0x18 +#define TVE200_CTRL_YUV420 BIT(31) +#define TVE200_CTRL_CSMODE BIT(30) +#define TVE200_CTRL_NONINTERLACE BIT(28) /* 0 = non-interlace CCIR656 */ +#define TVE200_CTRL_TVCLKP BIT(27) /* Inverted clock phase */ +/* Bits 24..26 define the burst size after arbitration on the bus */ +#define TVE200_CTRL_BURST_4_WORDS (0 << 24) +#define TVE200_CTRL_BURST_8_WORDS (1 << 24) +#define TVE200_CTRL_BURST_16_WORDS (2 << 24) +#define TVE200_CTRL_BURST_32_WORDS (3 << 24) +#define TVE200_CTRL_BURST_64_WORDS (4 << 24) +#define TVE200_CTRL_BURST_128_WORDS (5 << 24) +#define TVE200_CTRL_BURST_256_WORDS (6 << 24) +#define TVE200_CTRL_BURST_0_WORDS (7 << 24) /* ? */ +/* + * Bits 16..23 is the retry count*16 before issueing a new AHB transfer + * on the AHB bus. + */ +#define TVE200_CTRL_RETRYCNT_MASK GENMASK(23, 16) +#define TVE200_CTRL_RETRYCNT_16 (1 << 16) +#define TVE200_CTRL_BBBP BIT(15) /* 0 = little-endian */ +/* Bits 12..14 define the YCbCr ordering */ +#define TVE200_CTRL_YCBCRODR_CB0Y0CR0Y1 (0 << 12) +#define TVE200_CTRL_YCBCRODR_Y0CB0Y1CR0 (1 << 12) +#define TVE200_CTRL_YCBCRODR_CR0Y0CB0Y1 (2 << 12) +#define TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0 (3 << 12) +#define TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0 (4 << 12) +#define TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0 (5 << 12) +#define TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0 (6 << 12) +#define TVE200_CTRL_YCBCRODR_Y0CR0Y1CB0 (7 << 12) +/* Bits 10..11 define the input resolution (framebuffer size) */ +#define TVE200_CTRL_IPRESOL_CIF (0 << 10) +#define TVE200_CTRL_IPRESOL_VGA (1 << 10) +#define TVE200_CTRL_IPRESOL_D1 (2 << 10) +#define TVE200_CTRL_NTSC BIT(9) /* 0 = PAL, 1 = NTSC */ +#define TVE200_CTRL_INTERLACE BIT(8) /* 1 = interlace, only for D1 */ +#define TVE200_IPDMOD_RGB555 (0 << 6) /* TVE200_CTRL_YUV420 = 0 */ +#define TVE200_IPDMOD_RGB565 (1 << 6) +#define TVE200_IPDMOD_RGB888 (2 << 6) +#define TVE200_IPDMOD_YUV420 (2 << 6) /* TVE200_CTRL_YUV420 = 1 */ +#define TVE200_IPDMOD_YUV422 (3 << 6) +/* Bits 4 & 5 define when to fire the vblank IRQ */ +#define TVE200_VSTSTYPE_VSYNC (0 << 4) /* start of vsync */ +#define TVE200_VSTSTYPE_VBP (1 << 4) /* start of v back porch */ +#define TVE200_VSTSTYPE_VAI (2 << 4) /* start of v active image */ +#define TVE200_VSTSTYPE_VFP (3 << 4) /* start of v front porch */ +#define TVE200_VSTSTYPE_BITS (BIT(4) | BIT(5)) +#define TVE200_BGR BIT(1) /* 0 = RGB, 1 = BGR */ +#define TVE200_TVEEN BIT(0) /* Enable TVE block */ + +#define TVE200_CTRL_2 0x1c +#define TVE200_CTRL_3 0x20 + +#define TVE200_CTRL_4 0x24 +#define TVE200_CTRL_4_RESET BIT(0) /* triggers reset of TVE200 */ + +#include <drm/drm_gem.h> +#include <drm/drm_simple_kms_helper.h> + +struct tve200_drm_dev_private { + struct drm_device *drm; + + struct drm_connector *connector; + struct drm_panel *panel; + struct drm_bridge *bridge; + struct drm_simple_display_pipe pipe; + struct drm_fbdev_cma *fbdev; + + void *regs; + struct clk *pclk; + struct clk *clk; +}; + +#define to_tve200_connector(x) \ + container_of(x, struct tve200_drm_connector, connector) + +int tve200_display_init(struct drm_device *dev); +int tve200_enable_vblank(struct drm_device *drm, unsigned int crtc); +void tve200_disable_vblank(struct drm_device *drm, unsigned int crtc); +irqreturn_t tve200_irq(int irq, void *data); +int tve200_connector_init(struct drm_device *dev); +int tve200_encoder_init(struct drm_device *dev); +int tve200_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); + +#endif /* _TVE200_DRM_H_ */ diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c new file mode 100644 index 0000000..eae38b6 --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_drv.c @@ -0,0 +1,302 @@ +/* + * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org> + * Parts of this file were based on sources as follows: + * + * Copyright (C) 2006-2008 Intel Corporation + * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com> + * Copyright (C) 2007 Dave Airlie <airlied@linux.ie> + * Copyright (C) 2011 Texas Instruments + * Copyright (C) 2017 Eric Anholt + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms of + * such GNU licence. + */ + +/** + * DOC: Faraday TV Encoder TVE200 DRM Driver + * + * The Faraday TV Encoder TVE200 is also known as the Gemini TV Interface + * Controller (TVC) and is found in the Gemini Chipset from Storlink + * Semiconductor (later Storm Semiconductor, later Cortina Systems) + * but also in the Grain Media GM8180 chipset. On the Gemini the module + * is connected to 8 data lines and a single clock line, comprising an + * 8-bit BT.656 interface. + * + * This is a very basic YUV display driver. The datasheet specifies that + * it supports the ITU BT.656 standard. It requires a 27 MHz clock which is + * the hallmark of any TV encoder supporting both PAL and NTSC. + * + * This driver exposes a standard KMS interface for this TV encoder. + */ + +#include <linux/clk.h> +#include <linux/dma-buf.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/shmem_fs.h> +#include <linux/slab.h> +#include <linux/version.h> + +#include <drm/drmP.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_fb_cma_helper.h> +#include <drm/drm_panel.h> +#include <drm/drm_of.h> +#include <drm/drm_bridge.h> + +#include "tve200_drm.h" + +#define DRIVER_DESC "DRM module for Faraday TVE200" + +static const struct drm_mode_config_funcs mode_config_funcs = { + .fb_create = drm_fb_cma_create, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +static int tve200_modeset_init(struct drm_device *dev) +{ + struct drm_mode_config *mode_config; + struct tve200_drm_dev_private *priv = dev->dev_private; + struct drm_panel *panel; + struct drm_bridge *bridge; + int ret = 0; + + drm_mode_config_init(dev); + mode_config = &dev->mode_config; + mode_config->funcs = &mode_config_funcs; + mode_config->min_width = 352; + mode_config->max_width = 720; + mode_config->min_height = 240; + mode_config->max_height = 576; + + ret = drm_of_find_panel_or_bridge(dev->dev->of_node, + 0, 0, &panel, &bridge); + if (ret && ret != -ENODEV) + return ret; + if (panel) { + bridge = drm_panel_bridge_add(panel, + DRM_MODE_CONNECTOR_Unknown); + if (IS_ERR(bridge)) { + ret = PTR_ERR(bridge); + goto out_bridge; + } + } else { + /* + * TODO: when we are using a different bridge than a panel + * (such as a dumb VGA connector) we need to devise a different + * method to get the connector out of the bridge. + */ + dev_err(dev->dev, "the bridge is not a panel\n"); + goto out_bridge; + } + + ret = tve200_display_init(dev); + if (ret) { + dev_err(dev->dev, "failed to init display\n"); + goto out_bridge; + } + + ret = drm_simple_display_pipe_attach_bridge(&priv->pipe, + bridge); + if (ret) { + dev_err(dev->dev, "failed to attach bridge\n"); + goto out_bridge; + } + + priv->panel = panel; + priv->connector = panel->connector; + priv->bridge = bridge; + + dev_info(dev->dev, "attached to panel %s\n", + dev_name(panel->dev)); + + ret = drm_vblank_init(dev, 1); + if (ret) { + dev_err(dev->dev, "failed to init vblank\n"); + goto out_bridge; + } + + drm_mode_config_reset(dev); + + /* + * Passing in 16 here will make the RGB656 mode the default + * Passing in 32 will use XRGB8888 mode + */ + priv->fbdev = drm_fbdev_cma_init(dev, 16, + dev->mode_config.num_connector); + drm_kms_helper_poll_init(dev); + + goto finish; + +out_bridge: + if (panel) + drm_panel_bridge_remove(bridge); + drm_mode_config_cleanup(dev); +finish: + return ret; +} + +DEFINE_DRM_GEM_CMA_FOPS(drm_fops); + +static void tve200_lastclose(struct drm_device *dev) +{ + struct tve200_drm_dev_private *priv = dev->dev_private; + + drm_fbdev_cma_restore_mode(priv->fbdev); +} + +static struct drm_driver tve200_drm_driver = { + .driver_features = + DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, + .lastclose = tve200_lastclose, + .ioctls = NULL, + .fops = &drm_fops, + .name = "tve200", + .desc = DRIVER_DESC, + .date = "20170703", + .major = 1, + .minor = 0, + .patchlevel = 0, + .dumb_create = drm_gem_cma_dumb_create, + .gem_free_object_unlocked = drm_gem_cma_free_object, + .gem_vm_ops = &drm_gem_cma_vm_ops, + + .enable_vblank = tve200_enable_vblank, + .disable_vblank = tve200_disable_vblank, + + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_import = drm_gem_prime_import, + .gem_prime_export = drm_gem_prime_export, + .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, + .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, + .gem_prime_vmap = drm_gem_cma_prime_vmap, + .gem_prime_vunmap = drm_gem_cma_prime_vunmap, + .gem_prime_mmap = drm_gem_cma_prime_mmap, +}; + +static int tve200_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tve200_drm_dev_private *priv; + struct drm_device *drm; + struct resource *res; + int irq; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + drm = drm_dev_alloc(&tve200_drm_driver, dev); + if (IS_ERR(drm)) + return PTR_ERR(drm); + platform_set_drvdata(pdev, drm); + priv->drm = drm; + drm->dev_private = priv; + + /* Clock the silicon so we can access the registers */ + priv->pclk = devm_clk_get(dev, "PCLK"); + if (IS_ERR(priv->pclk)) { + dev_err(dev, "unable to get PCLK\n"); + ret = PTR_ERR(priv->pclk); + goto dev_unref; + } + ret = clk_prepare_enable(priv->pclk); + if (ret) { + dev_err(dev, "failed to enable PCLK\n"); + goto dev_unref; + } + + /* This clock is for the pixels (27MHz) */ + priv->clk = devm_clk_get(dev, "TVE"); + if (IS_ERR(priv->clk)) { + dev_err(dev, "unable to get TVE clock\n"); + ret = PTR_ERR(priv->clk); + goto clk_disable; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->regs = devm_ioremap_resource(dev, res); + if (!priv->regs) { + dev_err(dev, "%s failed mmio\n", __func__); + ret = -EINVAL; + goto clk_disable; + } + + irq = platform_get_irq(pdev, 0); + if (!irq) { + ret = -EINVAL; + goto clk_disable; + } + + /* turn off interrupts before requesting the irq */ + writel(0, priv->regs + TVE200_INT_EN); + + ret = devm_request_irq(dev, irq, tve200_irq, 0, "tve200", priv); + if (ret) { + dev_err(dev, "failed to request irq %d\n", ret); + goto clk_disable; + } + + ret = tve200_modeset_init(drm); + if (ret) + goto clk_disable; + + ret = drm_dev_register(drm, 0); + if (ret < 0) + goto clk_disable; + + return 0; + +clk_disable: + clk_disable_unprepare(priv->pclk); +dev_unref: + drm_dev_unref(drm); + return ret; +} + +static int tve200_remove(struct platform_device *pdev) +{ + struct drm_device *drm = platform_get_drvdata(pdev); + struct tve200_drm_dev_private *priv = drm->dev_private; + + drm_dev_unregister(drm); + if (priv->fbdev) + drm_fbdev_cma_fini(priv->fbdev); + if (priv->panel) + drm_panel_bridge_remove(priv->bridge); + drm_mode_config_cleanup(drm); + clk_disable_unprepare(priv->pclk); + drm_dev_unref(drm); + + return 0; +} + +static const struct of_device_id tve200_of_match[] = { + { + .compatible = "faraday,tve200", + }, + {}, +}; + +static struct platform_driver tve200_driver = { + .driver = { + .name = "tve200", + .of_match_table = of_match_ptr(tve200_of_match), + }, + .probe = tve200_probe, + .remove = tve200_remove, +}; +module_platform_driver(tve200_driver); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/vc4/Makefile b/drivers/gpu/drm/vc4/Makefile index 25bd5d3..719a771 100644 --- a/drivers/gpu/drm/vc4/Makefile +++ b/drivers/gpu/drm/vc4/Makefile @@ -24,5 +24,3 @@ vc4-y := \ vc4-$(CONFIG_DEBUG_FS) += vc4_debugfs.o obj-$(CONFIG_DRM_VC4) += vc4.o - -CFLAGS_vc4_trace_points.o := -I$(src) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 937da8d..fa37a1c 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -309,16 +309,13 @@ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev, struct drm_encoder *encoder) { - struct drm_connector *connector = NULL; + struct drm_connector *connector; struct vc4_hdmi_connector *hdmi_connector; - int ret = 0; hdmi_connector = devm_kzalloc(dev->dev, sizeof(*hdmi_connector), GFP_KERNEL); - if (!hdmi_connector) { - ret = -ENOMEM; - goto fail; - } + if (!hdmi_connector) + return ERR_PTR(-ENOMEM); connector = &hdmi_connector->base; hdmi_connector->encoder = encoder; @@ -336,12 +333,6 @@ static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev, drm_mode_connector_attach_encoder(connector, encoder); return connector; - - fail: - if (connector) - vc4_hdmi_connector_destroy(connector); - - return ERR_PTR(ret); } static void vc4_hdmi_encoder_destroy(struct drm_encoder *encoder) diff --git a/drivers/gpu/drm/vc4/vc4_trace.h b/drivers/gpu/drm/vc4/vc4_trace.h index ad7b1ea..deafb32 100644 --- a/drivers/gpu/drm/vc4/vc4_trace.h +++ b/drivers/gpu/drm/vc4/vc4_trace.h @@ -59,5 +59,5 @@ TRACE_EVENT(vc4_wait_for_seqno_end, /* This part must be outside protection */ #undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/vc4 #include <trace/define_trace.h> diff --git a/drivers/gpu/drm/zte/zx_drm_drv.c b/drivers/gpu/drm/zte/zx_drm_drv.c index 4524482..e8b8266 100644 --- a/drivers/gpu/drm/zte/zx_drm_drv.c +++ b/drivers/gpu/drm/zte/zx_drm_drv.c @@ -22,6 +22,7 @@ #include <drm/drm_fb_cma_helper.h> #include <drm/drm_fb_helper.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_of.h> #include <drm/drmP.h> @@ -40,7 +41,7 @@ static void zx_drm_fb_output_poll_changed(struct drm_device *drm) } static const struct drm_mode_config_funcs zx_drm_mode_config_funcs = { - .fb_create = drm_fb_cma_create, + .fb_create = drm_gem_fb_create, .output_poll_changed = zx_drm_fb_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index 8a5808e..5834580 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -144,7 +144,6 @@ struct __drm_planes_state { struct __drm_crtcs_state { struct drm_crtc *ptr; struct drm_crtc_state *state, *old_state, *new_state; - struct drm_crtc_commit *commit; s32 __user *out_fence_ptr; unsigned last_vblank_count; }; @@ -237,6 +236,18 @@ struct drm_atomic_state { struct drm_modeset_acquire_ctx *acquire_ctx; /** + * @fake_commit: + * + * Used for signaling unbound planes/connectors. + * When a connector or plane is not bound to any CRTC, it's still important + * to preserve linearity to prevent the atomic states from being freed to early. + * + * This commit (if set) is not bound to any crtc, but will be completed when + * drm_atomic_helper_commit_hw_done() is called. + */ + struct drm_crtc_commit *fake_commit; + + /** * @commit_work: * * Work item which can be used by the driver or helpers to execute the @@ -252,10 +263,14 @@ void __drm_crtc_commit_free(struct kref *kref); * @commit: CRTC commit * * Increases the reference of @commit. + * + * Returns: + * The pointer to @commit, with reference increased. */ -static inline void drm_crtc_commit_get(struct drm_crtc_commit *commit) +static inline struct drm_crtc_commit *drm_crtc_commit_get(struct drm_crtc_commit *commit) { kref_get(&commit->ref); + return commit; } /** @@ -555,31 +570,6 @@ int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state); void drm_state_dump(struct drm_device *dev, struct drm_printer *p); /** - * for_each_connector_in_state - iterate over all connectors in an atomic update - * @__state: &struct drm_atomic_state pointer - * @connector: &struct drm_connector iteration cursor - * @connector_state: &struct drm_connector_state iteration cursor - * @__i: int iteration cursor, for macro-internal use - * - * This iterates over all connectors in an atomic update. Note that before the - * software state is committed (by calling drm_atomic_helper_swap_state(), this - * points to the new state, while afterwards it points to the old state. Due to - * this tricky confusion this macro is deprecated. - * - * FIXME: - * - * Replace all usage of this with one of the explicit iterators below and then - * remove this macro. - */ -#define for_each_connector_in_state(__state, connector, connector_state, __i) \ - for ((__i) = 0; \ - (__i) < (__state)->num_connector && \ - ((connector) = (__state)->connectors[__i].ptr, \ - (connector_state) = (__state)->connectors[__i].state, 1); \ - (__i)++) \ - for_each_if (connector) - -/** * for_each_oldnew_connector_in_state - iterate over all connectors in an atomic update * @__state: &struct drm_atomic_state pointer * @connector: &struct drm_connector iteration cursor @@ -643,31 +633,6 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); for_each_if (connector) /** - * for_each_crtc_in_state - iterate over all connectors in an atomic update - * @__state: &struct drm_atomic_state pointer - * @crtc: &struct drm_crtc iteration cursor - * @crtc_state: &struct drm_crtc_state iteration cursor - * @__i: int iteration cursor, for macro-internal use - * - * This iterates over all CRTCs in an atomic update. Note that before the - * software state is committed (by calling drm_atomic_helper_swap_state(), this - * points to the new state, while afterwards it points to the old state. Due to - * this tricky confusion this macro is deprecated. - * - * FIXME: - * - * Replace all usage of this with one of the explicit iterators below and then - * remove this macro. - */ -#define for_each_crtc_in_state(__state, crtc, crtc_state, __i) \ - for ((__i) = 0; \ - (__i) < (__state)->dev->mode_config.num_crtc && \ - ((crtc) = (__state)->crtcs[__i].ptr, \ - (crtc_state) = (__state)->crtcs[__i].state, 1); \ - (__i)++) \ - for_each_if (crtc_state) - -/** * for_each_oldnew_crtc_in_state - iterate over all CRTCs in an atomic update * @__state: &struct drm_atomic_state pointer * @crtc: &struct drm_crtc iteration cursor @@ -727,31 +692,6 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p); for_each_if (crtc) /** - * for_each_plane_in_state - iterate over all planes in an atomic update - * @__state: &struct drm_atomic_state pointer - * @plane: &struct drm_plane iteration cursor - * @plane_state: &struct drm_plane_state iteration cursor - * @__i: int iteration cursor, for macro-internal use - * - * This iterates over all planes in an atomic update. Note that before the - * software state is committed (by calling drm_atomic_helper_swap_state(), this - * points to the new state, while afterwards it points to the old state. Due to - * this tricky confusion this macro is deprecated. - * - * FIXME: - * - * Replace all usage of this with one of the explicit iterators below and then - * remove this macro. - */ -#define for_each_plane_in_state(__state, plane, plane_state, __i) \ - for ((__i) = 0; \ - (__i) < (__state)->dev->mode_config.num_total_plane && \ - ((plane) = (__state)->planes[__i].ptr, \ - (plane_state) = (__state)->planes[__i].state, 1); \ - (__i)++) \ - for_each_if (plane_state) - -/** * for_each_oldnew_plane_in_state - iterate over all planes in an atomic update * @__state: &struct drm_atomic_state pointer * @plane: &struct drm_plane iteration cursor diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 6522d4cb..682d01b 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -245,7 +245,7 @@ struct drm_bridge { void *driver_private; }; -int drm_bridge_add(struct drm_bridge *bridge); +void drm_bridge_add(struct drm_bridge *bridge); void drm_bridge_remove(struct drm_bridge *bridge); struct drm_bridge *of_drm_find_bridge(struct device_node *np); int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge, diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index ea8da40..b34904d 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -347,6 +347,13 @@ struct drm_connector_state { struct drm_atomic_state *state; + /** + * @commit: Tracks the pending commit to prevent use-after-free conditions. + * + * Is only set when @crtc is NULL. + */ + struct drm_crtc_commit *commit; + struct drm_tv_connector_state tv; /** @@ -888,8 +895,7 @@ struct drm_connector { * This is protected by @drm_mode_config.connection_mutex. Note that * nonblocking atomic commits access the current connector state without * taking locks. Either by going through the &struct drm_atomic_state - * pointers, see for_each_connector_in_state(), - * for_each_oldnew_connector_in_state(), + * pointers, see for_each_oldnew_connector_in_state(), * for_each_old_connector_in_state() and * for_each_new_connector_in_state(). Or through careful ordering of * atomic commit operations as implemented in the atomic helpers, see diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 1a64202..80c9721 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -253,6 +253,15 @@ struct drm_crtc_state { */ struct drm_pending_vblank_event *event; + /** + * @commit: + * + * This tracks how the commit for this update proceeds through the + * various phases. This is never cleared, except when we destroy the + * state, so that subsequent commits can synchronize with previous ones. + */ + struct drm_crtc_commit *commit; + struct drm_atomic_state *state; }; @@ -797,10 +806,10 @@ struct drm_crtc { * This is protected by @mutex. Note that nonblocking atomic commits * access the current CRTC state without taking locks. Either by going * through the &struct drm_atomic_state pointers, see - * for_each_crtc_in_state(), for_each_oldnew_crtc_in_state(), - * for_each_old_crtc_in_state() and for_each_new_crtc_in_state(). Or - * through careful ordering of atomic commit operations as implemented - * in the atomic helpers, see &struct drm_crtc_commit. + * for_each_oldnew_crtc_in_state(), for_each_old_crtc_in_state() and + * for_each_new_crtc_in_state(). Or through careful ordering of atomic + * commit operations as implemented in the atomic helpers, see + * &struct drm_crtc_commit. */ struct drm_crtc_state *state; @@ -808,10 +817,16 @@ struct drm_crtc { * @commit_list: * * List of &drm_crtc_commit structures tracking pending commits. - * Protected by @commit_lock. This list doesn't hold its own full - * reference, but burrows it from the ongoing commit. Commit entries - * must be removed from this list once the commit is fully completed, - * but before it's correspoding &drm_atomic_state gets destroyed. + * Protected by @commit_lock. This list holds its own full reference, + * as does the ongoing commit. + * + * "Note that the commit for a state change is also tracked in + * &drm_crtc_state.commit. For accessing the immediately preceding + * commit in an atomic update it is recommended to just use that + * pointer in the old CRTC state, since accessing that doesn't need + * any locking or list-walking. @commit_list should only be used to + * stall for framebuffer cleanup that's signalled through + * &drm_crtc_commit.cleanup_done." */ struct list_head commit_list; diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index b17476a..11c39f1 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -738,6 +738,11 @@ #define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */ # define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0) +#define DP_LANE0_1_STATUS_ESI 0x200c /* status same as 0x202 */ +#define DP_LANE2_3_STATUS_ESI 0x200d /* status same as 0x203 */ +#define DP_LANE_ALIGN_STATUS_UPDATED_ESI 0x200e /* status same as 0x204 */ +#define DP_SINK_STATUS_ESI 0x200f /* status same as 0x205 */ + #define DP_DPRX_FEATURE_ENUMERATION_LIST 0x2210 /* DP 1.3 */ # define DP_GTC_CAP (1 << 0) /* DP 1.3 */ # define DP_SST_SPLIT_SDP_CAP (1 << 1) /* DP 1.4 */ @@ -871,6 +876,18 @@ void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); u8 drm_dp_link_rate_to_bw_code(int link_rate); int drm_dp_bw_code_to_link_rate(u8 link_bw); +#define DP_SDP_AUDIO_TIMESTAMP 0x01 +#define DP_SDP_AUDIO_STREAM 0x02 +#define DP_SDP_EXTENSION 0x04 /* DP 1.1 */ +#define DP_SDP_AUDIO_COPYMANAGEMENT 0x05 /* DP 1.2 */ +#define DP_SDP_ISRC 0x06 /* DP 1.2 */ +#define DP_SDP_VSC 0x07 /* DP 1.2 */ +#define DP_SDP_CAMERA_GENERIC(i) (0x08 + (i)) /* 0-7, DP 1.3 */ +#define DP_SDP_PPS 0x10 /* DP 1.4 */ +#define DP_SDP_VSC_EXT_VESA 0x20 /* DP 1.4 */ +#define DP_SDP_VSC_EXT_CEA 0x21 /* DP 1.4 */ +/* 0x80+ CEA-861 infoframe types */ + struct edp_sdp_header { u8 HB0; /* Secondary Data Packet ID */ u8 HB1; /* Secondary Data Packet Type */ diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index d55abb7..7f78d26 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -631,5 +631,7 @@ int drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, int drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, int slots); +int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_port *port, bool power_up); #endif diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 1e1908a..6f35909b 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -341,6 +341,8 @@ int drm_av_sync_delay(struct drm_connector *connector, #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE struct edid *drm_load_edid_firmware(struct drm_connector *connector); +int __drm_set_edid_firmware_path(const char *path); +int __drm_get_edid_firmware_path(char *buf, size_t bufsize); #else static inline struct edid * drm_load_edid_firmware(struct drm_connector *connector) diff --git a/include/drm/drm_gem_framebuffer_helper.h b/include/drm/drm_gem_framebuffer_helper.h index db9cfa0..5ca7cdc 100644 --- a/include/drm/drm_gem_framebuffer_helper.h +++ b/include/drm/drm_gem_framebuffer_helper.h @@ -2,8 +2,8 @@ #define __DRM_GEM_FB_HELPER_H__ struct drm_device; -struct drm_file; struct drm_fb_helper_surface_size; +struct drm_file; struct drm_framebuffer; struct drm_framebuffer_funcs; struct drm_gem_object; diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index c55cf3f..16646c4 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -314,7 +314,7 @@ struct drm_crtc_helper_funcs { * implementation in drm_atomic_helper_check(). * * When using drm_atomic_helper_check_planes() this hook is called - * after the &drm_plane_helper_funcs.atomc_check hook for planes, which + * after the &drm_plane_helper_funcs.atomic_check hook for planes, which * allows drivers to assign shared resources requested by planes in this * callback here. For more complicated dependencies the driver can call * the provided check helpers multiple times until the computed state diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h index 4b27c2b..a685d1b 100644 --- a/include/drm/drm_modeset_lock.h +++ b/include/drm/drm_modeset_lock.h @@ -34,6 +34,7 @@ struct drm_modeset_lock; * @contended: used internally for -EDEADLK handling * @locked: list of held locks * @trylock_only: trylock mode used in atomic contexts/panic notifiers + * @interruptible: whether interruptible locking should be used. * * Each thread competing for a set of locks must use one acquire * ctx. And if any lock fxn returns -EDEADLK, it must backoff and @@ -59,6 +60,9 @@ struct drm_modeset_acquire_ctx { * Trylock mode, use only for panic handlers! */ bool trylock_only; + + /* Perform interruptible waits on this context. */ + bool interruptible; }; /** @@ -82,12 +86,13 @@ struct drm_modeset_lock { struct list_head head; }; +#define DRM_MODESET_ACQUIRE_INTERRUPTIBLE BIT(0) + void drm_modeset_acquire_init(struct drm_modeset_acquire_ctx *ctx, uint32_t flags); void drm_modeset_acquire_fini(struct drm_modeset_acquire_ctx *ctx); void drm_modeset_drop_locks(struct drm_modeset_acquire_ctx *ctx); -void drm_modeset_backoff(struct drm_modeset_acquire_ctx *ctx); -int drm_modeset_backoff_interruptible(struct drm_modeset_acquire_ctx *ctx); +int drm_modeset_backoff(struct drm_modeset_acquire_ctx *ctx); void drm_modeset_lock_init(struct drm_modeset_lock *lock); @@ -111,8 +116,7 @@ static inline bool drm_modeset_is_locked(struct drm_modeset_lock *lock) int drm_modeset_lock(struct drm_modeset_lock *lock, struct drm_modeset_acquire_ctx *ctx); -int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock, - struct drm_modeset_acquire_ctx *ctx); +int __must_check drm_modeset_lock_single_interruptible(struct drm_modeset_lock *lock); void drm_modeset_unlock(struct drm_modeset_lock *lock); struct drm_device; diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 73f90f9..82a217b 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -123,6 +123,14 @@ struct drm_plane_state { */ bool visible; + /** + * @commit: Tracks the pending commit to prevent use-after-free conditions, + * and for async plane updates. + * + * May be NULL. + */ + struct drm_crtc_commit *commit; + struct drm_atomic_state *state; }; @@ -531,10 +539,10 @@ struct drm_plane { * This is protected by @mutex. Note that nonblocking atomic commits * access the current plane state without taking locks. Either by going * through the &struct drm_atomic_state pointers, see - * for_each_plane_in_state(), for_each_oldnew_plane_in_state(), - * for_each_old_plane_in_state() and for_each_new_plane_in_state(). Or - * through careful ordering of atomic commit operations as implemented - * in the atomic helpers, see &struct drm_crtc_commit. + * for_each_oldnew_plane_in_state(), for_each_old_plane_in_state() and + * for_each_new_plane_in_state(). Or through careful ordering of atomic + * commit operations as implemented in the atomic helpers, see + * &struct drm_crtc_commit. */ struct drm_plane_state *state; diff --git a/include/linux/sync_file.h b/include/linux/sync_file.h index 0ad87c4..790ca02 100644 --- a/include/linux/sync_file.h +++ b/include/linux/sync_file.h @@ -25,8 +25,12 @@ * @file: file representing this fence * @sync_file_list: membership in global file list * @wq: wait queue for fence signaling + * @flags: flags for the sync_file * @fence: fence with the fences in the sync_file * @cb: fence callback information + * + * flags: + * POLL_ENABLED: whether userspace is currently poll()'ing or not */ struct sync_file { struct file *file; diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 54fc38c..34b6bb3 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -749,9 +749,9 @@ struct drm_format_modifier { * If the number formats grew to 128, and formats 98-102 are * supported with the modifier: * - * 0x0000003c00000000 0000000000000000 + * 0x0000007c00000000 0000000000000000 * ^ - * |__offset = 64, formats = 0x3c00000000 + * |__offset = 64, formats = 0x7c00000000 * */ __u64 formats; |
