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author | Dave Airlie <airlied@redhat.com> | 2016-07-02 16:21:35 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2016-07-02 16:21:35 +1000 |
commit | dac2c48ca5ac9bb2d6339aaa733c60d5b801ee86 (patch) | |
tree | 3b288b03448dc0e514de3101e9d9c4498947f084 /drivers/gpu/drm/fsl-dcu | |
parent | 542d972221e024681b502033154f917c1455469f (diff) | |
parent | f5bce4309db6597003e683d28d12b1b4bc9408b0 (diff) | |
download | op-kernel-dev-dac2c48ca5ac9bb2d6339aaa733c60d5b801ee86.zip op-kernel-dev-dac2c48ca5ac9bb2d6339aaa733c60d5b801ee86.tar.gz |
Merge branch 'for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu into drm-next
The patchset contains a new helper in drm_fb_cma_helper.c for suspend/
resume when using cma backed framebuffers.
* 'for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu:
drm/fsl-dcu: disable vblank events on CRTC disable
drm/fsl-dcu: implement suspend/resume using atomic helpers
drm/fsl-dcu: use clk helpers
drm/fsl-dcu: move layer initialization to plane file
drm/fsl-dcu: store layer registers in soc_data
drm/fb_cma_helper: add suspend helper
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu')
-rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 21 | ||||
-rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 47 | ||||
-rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 16 | ||||
-rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h | 1 |
5 files changed, 60 insertions, 27 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c index 706de32..3371635 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c @@ -44,6 +44,8 @@ static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + drm_crtc_vblank_off(crtc); + regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, DCU_MODE_DCU_MODE_MASK, DCU_MODE_DCU_MODE(DCU_MODE_OFF)); @@ -61,6 +63,8 @@ static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); + + drm_crtc_vblank_on(crtc); } static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) @@ -137,9 +141,10 @@ int fsl_dcu_drm_crtc_create(struct fsl_dcu_drm_device *fsl_dev) { struct drm_plane *primary; struct drm_crtc *crtc = &fsl_dev->crtc; - unsigned int i, j, reg_num; int ret; + fsl_dcu_drm_init_planes(fsl_dev->drm); + primary = fsl_dcu_drm_primary_create_plane(fsl_dev->drm); if (!primary) return -ENOMEM; @@ -153,19 +158,5 @@ int fsl_dcu_drm_crtc_create(struct fsl_dcu_drm_device *fsl_dev) drm_crtc_helper_add(crtc, &fsl_dcu_drm_crtc_helper_funcs); - if (!strcmp(fsl_dev->soc->name, "ls1021a")) - reg_num = LS1021A_LAYER_REG_NUM; - else - reg_num = VF610_LAYER_REG_NUM; - for (i = 0; i < fsl_dev->soc->total_layer; i++) { - for (j = 1; j <= reg_num; j++) - regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); - } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_OFF)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); - return 0; } diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 7655c8c..7882387 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/clk-provider.h> +#include <linux/console.h> #include <linux/io.h> #include <linux/mfd/syscon.h> #include <linux/mm.h> @@ -22,6 +23,7 @@ #include <linux/regmap.h> #include <drm/drmP.h> +#include <drm/drm_atomic_helper.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_cma_helper.h> @@ -42,10 +44,8 @@ static const struct regmap_config fsl_dcu_regmap_config = { .reg_bits = 32, .reg_stride = 4, .val_bits = 32, - .cache_type = REGCACHE_FLAT, .volatile_reg = fsl_dcu_drm_is_volatile_reg, - .max_register = 0x11fc, }; static int fsl_dcu_drm_irq_init(struct drm_device *dev) @@ -229,11 +229,26 @@ static int fsl_dcu_drm_pm_suspend(struct device *dev) if (!fsl_dev) return 0; + disable_irq(fsl_dev->irq); drm_kms_helper_poll_disable(fsl_dev->drm); - regcache_cache_only(fsl_dev->regmap, true); - regcache_mark_dirty(fsl_dev->regmap); - clk_disable(fsl_dev->clk); - clk_unprepare(fsl_dev->clk); + + console_lock(); + drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 1); + console_unlock(); + + fsl_dev->state = drm_atomic_helper_suspend(fsl_dev->drm); + if (IS_ERR(fsl_dev->state)) { + console_lock(); + drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 0); + console_unlock(); + + drm_kms_helper_poll_enable(fsl_dev->drm); + enable_irq(fsl_dev->irq); + return PTR_ERR(fsl_dev->state); + } + + clk_disable_unprepare(fsl_dev->pix_clk); + clk_disable_unprepare(fsl_dev->clk); return 0; } @@ -246,21 +261,27 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) if (!fsl_dev) return 0; - ret = clk_enable(fsl_dev->clk); + ret = clk_prepare_enable(fsl_dev->clk); if (ret < 0) { dev_err(dev, "failed to enable dcu clk\n"); - clk_unprepare(fsl_dev->clk); return ret; } - ret = clk_prepare(fsl_dev->clk); + + ret = clk_prepare_enable(fsl_dev->pix_clk); if (ret < 0) { - dev_err(dev, "failed to prepare dcu clk\n"); + dev_err(dev, "failed to enable pix clk\n"); return ret; } + fsl_dcu_drm_init_planes(fsl_dev->drm); + drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state); + + console_lock(); + drm_fbdev_cma_set_suspend(fsl_dev->fbdev, 0); + console_unlock(); + drm_kms_helper_poll_enable(fsl_dev->drm); - regcache_cache_only(fsl_dev->regmap, false); - regcache_sync(fsl_dev->regmap); + enable_irq(fsl_dev->irq); return 0; } @@ -274,12 +295,14 @@ static const struct fsl_dcu_soc_data fsl_dcu_ls1021a_data = { .name = "ls1021a", .total_layer = 16, .max_layer = 4, + .layer_regs = LS1021A_LAYER_REG_NUM, }; static const struct fsl_dcu_soc_data fsl_dcu_vf610_data = { .name = "vf610", .total_layer = 64, .max_layer = 6, + .layer_regs = VF610_LAYER_REG_NUM, }; static const struct of_device_id fsl_dcu_of_match[] = { diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h index c275f90..3b371fe7 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h @@ -175,6 +175,7 @@ struct fsl_dcu_soc_data { unsigned int total_layer; /*max layer number DCU supported*/ unsigned int max_layer; + unsigned int layer_regs; }; struct fsl_dcu_drm_device { @@ -193,6 +194,7 @@ struct fsl_dcu_drm_device { struct drm_encoder encoder; struct fsl_dcu_drm_connector connector; const struct fsl_dcu_soc_data *soc; + struct drm_atomic_state *state; }; void fsl_dcu_fbdev_init(struct drm_device *dev); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index 274558b..e50467a 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -217,6 +217,22 @@ static const u32 fsl_dcu_drm_plane_formats[] = { DRM_FORMAT_YUV422, }; +void fsl_dcu_drm_init_planes(struct drm_device *dev) +{ + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + int i, j; + + for (i = 0; i < fsl_dev->soc->total_layer; i++) { + for (j = 1; j <= fsl_dev->soc->layer_regs; j++) + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); + } + regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, + DCU_MODE_DCU_MODE_MASK, + DCU_MODE_DCU_MODE(DCU_MODE_OFF)); + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, + DCU_UPDATE_MODE_READREG); +} + struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev) { struct drm_plane *primary; diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h index d657f08..8ee45f8 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h @@ -12,6 +12,7 @@ #ifndef __FSL_DCU_DRM_PLANE_H__ #define __FSL_DCU_DRM_PLANE_H__ +void fsl_dcu_drm_init_planes(struct drm_device *dev); struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev); #endif /* __FSL_DCU_DRM_PLANE_H__ */ |