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* 8250/16?50: Add support for Broadcom TruManage redirected serial portStephen Hurd2013-01-173-0/+50
| | | | | | | | | | | | | | | | Add support for the UART device present in Broadcom TruManage capable NetXtreme chips (ie: 5761m 5762, and 5725). This implementation has a hidden transmit FIFO, so running in single-byte interrupt mode results in too many interrupts. The UART_CAP_HFIFO capability was added to track this. It continues to reload the THR as long as the THRE and TSRE bits are set in the LSR up to a specified limit (1024 is used here). Signed-off-by: Stephen Hurd <shurd@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pty: return EINVAL for TIOCGPTN for BSD ptysJiri Slaby2013-01-171-0/+2
| | | | | | | | | | | | | | | | | | Commit bbb63c514a3464342967237a51a21ea8f61ab951 (drivers:tty:fix up ENOIOCTLCMD error handling) changed the default return value from tty ioctl to be ENOTTY and not EINVAL. This is appropriate. But in case of TIOCGPTN for the old BSD ptys glibc started failing because it expects EINVAL to be returned. Only then it continues to obtain the pts name the other way around. So fix this case by explicit return of EINVAL in this case. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Reported-by: Florian Westphal <fw@strlen.de> Cc: Alan Cox <alan@linux.intel.com> Cc: stable <stable@vger.kernel.org> # 3.7+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial:ifx6x60:Keep word size accordance with SPI controllerchanning2013-01-151-1/+2
| | | | | | | | | | | | | As protocol driver, IFX SPI driver initiate to setup SPI master with default SPI word size as 16 bit/word, however, SPI master may not adopt this default value due to SPI controller's capability, it might choose an available value by itself and set it to spi_device.bits_per_word. In order to keep align with Controller, IFX driver should make use of this value during SPI transfer, but the default one. Signed-off-by: Chen Jun <jun.d.chen@intel.com> Signed-off-by: channing <chao.bi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: 8250_dw: Fix inverted arguments to serial_out in IRQ handlerMaxime Ripard2013-01-151-1/+1
| | | | | | Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: samsung: remove redundant setting of line config during port resetThomas Abraham2013-01-151-1/+0
| | | | | | | | | | The setting of uart line control configuration in s3c24xx_serial_resetport is can be removed since the 'set_termios' call will overwrite any ULCON register setting which s3c24xx_serial_resetport does. Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial:ifx6x60:Delete SPI timer when shut down portchao bi2013-01-151-0/+1
| | | | | | | | | | | When shut down SPI port, it's possible that MRDY has been asserted and a SPI timer was activated waiting for SRDY assert, in the case, it needs to delete this timer. Signed-off-by: Chen Jun <jun.d.chen@intel.com> Signed-off-by: channing <chao.bi@intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty/8250: The correct device id for this card is 0x0022Matt Schulte2013-01-151-1/+1
| | | | | | | | The correct device id for this card is 0x0022 Signed-off-by: Matt Schulte <matts@commtech-fastcom.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definitionMatt Schulte2013-01-151-1/+1
| | | | | | | | tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition Signed-off-by: Matt Schulte <matts@commtech-fastcom.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: vt8500: fix return value check in vt8500_serial_probe()Wei Yongjun2013-01-151-1/+1
| | | | | | | | | | | In case of error, function of_clk_get() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Tony Prisk <linux@prisktech.co.nz> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mxs-auart: Index is unsignedfabio.estevam@freescale.com2013-01-151-1/+1
| | | | | | | | | | | Fix the following warning when building with W=1 option: drivers/tty/serial/mxs-auart.c: In function 'mxs_auart_tx_chars': drivers/tty/serial/mxs-auart.c:272:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mxs: uart: fix setting RTS from softwareSteffen Trumtrar2013-01-151-1/+3
| | | | | | | | | | | | | | With the patch "serial: mxs-auart: fix the wrong RTS hardware flow control" the mainline mxs-uart driver now sets RTSEN only when hardware flow control is enabled via software. It is not possible any longer to set RTS manually via software. However, the manual modification is a valid operation. Regain the possibility to set RTS via software and only set RTSEN when hardware flow control is explicitly enabled via settermios cflag CRTSCTS. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: stable <stable@vger.kernel.org> Reviewed-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'omap-for-v3.8/fixes-for-merge-window' into ↵Tony Lindgren2012-12-161-2/+1
|\ | | | | | | omap-for-v3.8/fixes-for-merge-window-v2
| * ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.hTony Lindgren2012-12-141-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to move this file to allow ARM multiplatform configurations to build for omap2+. This can now be done as this file now only contains platform_data. cc: Russell King <linux@arm.linux.org.uk> cc: Alan Cox <alan@linux.intel.com> cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Govindraj.R <govindraj.raja@ti.com> cc: Kevin Hilman <khilman@ti.com> cc: linux-serial@vger.kernel.org Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2012-12-131-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull KVM updates from Marcelo Tosatti: "Considerable KVM/PPC work, x86 kvmclock vsyscall support, IA32_TSC_ADJUST MSR emulation, amongst others." Fix up trivial conflict in kernel/sched/core.c due to cross-cpu migration notifier added next to rq migration call-back. * tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (156 commits) KVM: emulator: fix real mode segment checks in address linearization VMX: remove unneeded enable_unrestricted_guest check KVM: VMX: fix DPL during entry to protected mode x86/kexec: crash_vmclear_local_vmcss needs __rcu kvm: Fix irqfd resampler list walk KVM: VMX: provide the vmclear function and a bitmap to support VMCLEAR in kdump x86/kexec: VMCLEAR VMCSs loaded on all cpus if necessary KVM: MMU: optimize for set_spte KVM: PPC: booke: Get/set guest EPCR register using ONE_REG interface KVM: PPC: bookehv: Add EPCR support in mtspr/mfspr emulation KVM: PPC: bookehv: Add guest computation mode for irq delivery KVM: PPC: Make EPCR a valid field for booke64 and bookehv KVM: PPC: booke: Extend MAS2 EPN mask for 64-bit KVM: PPC: e500: Mask MAS2 EPN high 32-bits in 32/64 tlbwe emulation KVM: PPC: Mask ea's high 32-bits in 32/64 instr emulation KVM: PPC: e500: Add emulation helper for getting instruction ea KVM: PPC: bookehv64: Add support for interrupt handling KVM: PPC: bookehv: Remove GET_VCPU macro from exception handler KVM: PPC: booke: Fix get_tb() compile error on 64-bit KVM: PPC: e500: Silence bogus GCC warning in tlb code ...
| * \ Merge remote-tracking branch 'master' into queueMarcelo Tosatti2012-10-2911-81/+137
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge reason: development work has dependency on kvm patches merged upstream. Conflicts: arch/powerpc/include/asm/Kbuild arch/powerpc/include/asm/kvm_para.h Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * \ \ Merge branch 'for-upstream' of http://github.com/agraf/linux-2.6 into queueMarcelo Tosatti2012-10-101-0/+1
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-upstream' of http://github.com/agraf/linux-2.6: (56 commits) arch/powerpc/kvm/e500_tlb.c: fix error return code KVM: PPC: Book3S HV: Provide a way for userspace to get/set per-vCPU areas KVM: PPC: Book3S: Get/set guest FP regs using the GET/SET_ONE_REG interface KVM: PPC: Book3S: Get/set guest SPRs using the GET/SET_ONE_REG interface KVM: PPC: set IN_GUEST_MODE before checking requests KVM: PPC: e500: MMU API: fix leak of shared_tlb_pages KVM: PPC: e500: fix allocation size error on g2h_tlb1_map KVM: PPC: Book3S HV: Fix calculation of guest phys address for MMIO emulation KVM: PPC: Book3S HV: Remove bogus update of physical thread IDs KVM: PPC: Book3S HV: Fix updates of vcpu->cpu KVM: Move some PPC ioctl definitions to the correct place KVM: PPC: Book3S HV: Handle memory slot deletion and modification correctly KVM: PPC: Move kvm->arch.slot_phys into memslot.arch KVM: PPC: Book3S HV: Take the SRCU read lock before looking up memslots KVM: PPC: bookehv: Allow duplicate calls of DO_KVM macro KVM: PPC: BookE: Support FPU on non-hv systems KVM: PPC: 440: Implement mfdcrx KVM: PPC: 440: Implement mtdcrx Document IACx/DACx registers access using ONE_REG API KVM: PPC: E500: Remove E500_TLB_DIRTY flag ...
| | * | | PPC: select EPAPR_PARAVIRT for all users of epapr hcallsStuart Yoder2012-10-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2012-12-136-6/+6
|\ \ \ \ \ | |_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial branch from Jiri Kosina: "Usual stuff -- comment/printk typo fixes, documentation updates, dead code elimination." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) HOWTO: fix double words typo x86 mtrr: fix comment typo in mtrr_bp_init propagate name change to comments in kernel source doc: Update the name of profiling based on sysfs treewide: Fix typos in various drivers treewide: Fix typos in various Kconfig wireless: mwifiex: Fix typo in wireless/mwifiex driver messages: i2o: Fix typo in messages/i2o scripts/kernel-doc: check that non-void fcts describe their return value Kernel-doc: Convention: Use a "Return" section to describe return values radeon: Fix typo and copy/paste error in comments doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c various: Fix spelling of "asynchronous" in comments. Fix misspellings of "whether" in comments. eisa: Fix spelling of "asynchronous". various: Fix spelling of "registered" in comments. doc: fix quite a few typos within Documentation target: iscsi: fix comment typos in target/iscsi drivers treewide: fix typo of "suport" in various comments and Kconfig treewide: fix typo of "suppport" in various comments ...
| * | | | various: Fix spelling of "asynchronous" in comments.Adam Buchbinder2012-11-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "Asynchronous" is misspelled in some comments. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | | Merge branch 'master' into for-nextJiri Kosina2012-10-2887-3643/+6188
| |\ \ \ \ | | | |_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | Sync up with Linus' tree to be able to apply Cesar's patch against newer version of the code. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | | tty: Fix typo in tty driversMasanari Iida2012-10-255-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct spelling typo in debug messages within tty drivers. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-12-121-1/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC updates from Olof Johansson: "This contains the bulk of new SoC development for this merge window. Two new platforms have been added, the sunxi platforms (Allwinner A1x SoCs) by Maxime Ripard, and a generic Broadcom platform for a new series of ARMv7 platforms from them, where the hope is that we can keep the platform code generic enough to have them all share one mach directory. The new Broadcom platform is contributed by Christian Daudt. Highbank has grown support for Calxeda's next generation of hardware, ECX-2000. clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also taken on maintainership of the platform. Beyond this there has been a bunch of work from a number of people on converting more platforms to IRQ domains, pinctrl conversion, cleanup and general feature enablement across most of the active platforms." Fix up trivial conflicts as per Olof. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits) mfd: vexpress-sysreg: Remove LEDs code irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids irq: versatile: delete dangling variable ARM: sunxi: add missing include for mdelay() ARM: EXYNOS: Avoid early use of of_machine_is_compatible() ARM: dts: add node for PL330 MDMA1 controller for exynos4 ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412 ARM: EXYNOS: add UART3 to DEBUG_LL ports ARM: S3C24XX: Add clkdev entry for camif-upll clock ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers ARM: sunxi: Add missing sun4i.dtsi file pinctrl: samsung: Do not initialise statics to 0 ARM i.MX6: remove gate_mask from pllv3 ARM i.MX6: Fix ethernet PLL clocks ARM i.MX6: rename PLLs according to datasheet ARM i.MX6: Add pwm support ARM i.MX51: Add pwm support ARM i.MX53: Add pwm support ARM: mx5: Replace clk_register_clkdev with clock DT lookup ...
| * \ \ \ \ Merge branch 'next/cam-samsung' of ↵Olof Johansson2012-11-302-7/+1
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc From Kukjin Kim: Just adding camif gpio setup and clkdev. * 'next/cam-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C24XX: Add clkdev entry for camif-upll clock ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers + Linux 3.7-rc6 Conflicts due to the 3.7-rc6 sync: arch/arm/mach-highbank/system.c include/linux/clk-provider.h, resolved as in other branches. Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | | | | ARM: EXYNOS: add support for EXYNOS5440 SoCKukjin Kim2012-11-221-1/+2
| | |_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for EXYNOS5440 SoC which is including ARM Cortex-A15 Quad cores. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | | | Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-12-121-2/+1
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC Header cleanups from Olof Johansson: "This is a collection of header file cleanups, mostly for OMAP and AT91, that keeps moving the platforms in the direction of multiplatform by removing the need for mach-dependent header files used in drivers and other places." Fix up mostly trivial conflicts as per Olof. * tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits) ARM: OMAP2+: Move iommu/iovmm headers to platform_data ARM: OMAP2+: Make some definitions local ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h ARM: OMAP2+: Move iopgtable header to drivers/iommu/ ARM: OMAP: Merge iommu2.h into iommu.h atmel: move ATMEL_MAX_UART to platform_data/atmel.h ARM: OMAP: Remove omap_init_consistent_dma_size() arm: at91: move at91rm9200 rtc header in drivers/rtc arm: at91: move reset controller header to arm/arm/mach-at91 arm: at91: move pit define to the driver arm: at91: move at91_shdwc.h to arch/arm/mach-at91 arm: at91: move board header to arch/arm/mach-at91 arn: at91: move at91_tc.h to arch/arm/mach-at91 arm: at91 move at91_aic.h to arch/arm/mach-at91 arm: at91 move board.h to arch/arm/mach-at91 arm: at91: move platfarm_data to include/linux/platform_data/atmel.h arm: at91: drop machine defconfig ARM: OMAP: Remove NEED_MACH_GPIO_H ARM: OMAP: Remove unnecessary mach and plat includes ...
| * \ \ \ \ \ Merge tag 'for-3.8-at91_header_clean' of ↵Arnd Bergmann2012-11-122-7/+7
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/at91linux/linux-at91 into next/headers From Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>: arm: at91: mach header cleanup This first patch serie start the cleanup of the header in mach by moving all the platform data to include/linux/platform_data and move the board header and drivers header next to them * tag 'for-3.8-at91_header_clean' of git://github.com/at91linux/linux-at91: arm: at91: move at91rm9200 rtc header in drivers/rtc arm: at91: move reset controller header to arm/arm/mach-at91 arm: at91: move pit define to the driver arm: at91: move at91_shdwc.h to arch/arm/mach-at91 arm: at91: move board header to arch/arm/mach-at91 arn: at91: move at91_tc.h to arch/arm/mach-at91 arm: at91 move at91_aic.h to arch/arm/mach-at91 arm: at91 move board.h to arch/arm/mach-at91 arm: at91: move platfarm_data to include/linux/platform_data/atmel.h arm: at91: drop machine defconfig Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | arm: at91: move platfarm_data to include/linux/platform_data/atmel.hJean-Christophe PLAGNIOL-VILLARD2012-11-061-1/+1
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
* | | | | | | Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds2012-12-122-19/+1
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM updates from Russell King: "Here's the updates for ARM for this merge window, which cover quite a variety of areas. There's a bunch of patch series from Will tackling various bugs like the PROT_NONE handling, ASID allocation, cluster boot protocol and ASID TLB tagging updates. We move to a build-time sorted exception table rather than doing the sorting at run-time, add support for the secure computing filter, and some updates to the perf code. We also have sorted out the placement of some headers, fixed some build warnings, fixed some hotplug problems with the per-cpu TWD code." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (73 commits) ARM: 7594/1: Add .smp entry for REALVIEW_EB ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets. ARM: 7595/1: syscall: rework ordering in syscall_trace_exit ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch. ARM: 7593/1: nommu: do not enable DCACHE_WORD_ACCESS when !CONFIG_MMU ARM: 7592/1: nommu: prevent generation of kernel unaligned memory accesses ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 ARM: 7590/1: /proc/interrupts: limit the display of IPIs to online CPUs only ARM: 7587/1: implement optimized percpu variable access ARM: 7589/1: integrator: pass the lm resource to amba ARM: 7588/1: amba: create a resource parent registrator ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM ARM: 7585/1: kernel: fix nr_cpu_ids check in DT logical map init ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected ARM: gic: use a private mapping for CPU target interfaces ARM: kernel: add logical mappings look-up ARM: kernel: add cpu logical map DT init in setup_arch ARM: kernel: add device tree init map function ...
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| *---. \ \ \ \ \ \ Merge branches 'cache-l2x0', 'fixes', 'hdrs', 'misc', 'mmci', 'vic' and ↵Russell King2012-12-1111-49/+28
| |\ \ \ \ \ \ \ \ \ | | | | | |/ / / / / | | | | |/| | | | | | | | | | | | | | | 'warnings' into for-next
| | | * | | | | | | ARM/AVR32: get rid of serial_at91.hRussell King2012-11-161-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The definitions provided by serial_at91.h are only used by the atmel_serial driver, and the function that uses it is never called from anywhere in the kernel. Therefore, these definitions are unused and/or obsolete, and can be removed. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | | | | ARM: move serial_sa1100.h header file to linux/platform_dataRussell King2012-11-161-1/+1
| | |/ / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is really driver platform data, so move it to the appropriate directory. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | | | | | | Merge branch 'omap-serial' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds2012-12-122-95/+207
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM OMAP serial updates from Russell King: "This series is a major reworking of the OMAP serial driver code fixing various bugs in the hardware-assisted flow control, extending up into serial_core for a couple of issues. These fixes have been done as a set of progressive changes and transformations in the hope that no new bugs will be introduced by this series. The problems are many-fold, from the driver not being informed about updated settings, to the driver not knowing what the intentions of the upper layers are. The first four patches tackle the serial_core layer, allowing it to provide the necessary information to drivers, and the remaining patches allow the OMAP serial driver to take advantage of this. This brings hardware assisted RTS/CTS and XON/OFF flow control into a useful state. These patches have been in linux-next for most of the last cycle; indeed they predate the previous merge window. They've also been posted to the OMAP people." * 'omap-serial' of git://git.linaro.org/people/rmk/linux-arm: (21 commits) SERIAL: omap: fix hardware assisted flow control SERIAL: omap: simplify (2) SERIAL: omap: move xon/xoff setting earlier SERIAL: omap: always set TCR SERIAL: omap: simplify SERIAL: omap: don't read back LCR/MCR/EFR SERIAL: omap: serial_omap_configure_xonxoff() contents into set_termios SERIAL: omap: configure xon/xoff before setting modem control lines SERIAL: omap: remove OMAP_UART_SYSC_RESET and OMAP_UART_FIFO_CLR SERIAL: omap: move driver private definitions and structures to driver SERIAL: omap: remove 'irq_pending' bitfield SERIAL: omap: fix MCR TCRTLR bit handling SERIAL: omap: fix set_mctrl() breakage SERIAL: omap: no need to re-read EFR SERIAL: omap: remove setting of EFR SCD bit SERIAL: omap: allow hardware assisted IXANY mode to be disabled SERIAL: omap: allow hardware assisted rts/cts modes to be disabled SERIAL: core: add throttle/unthrottle callbacks for hardware assisted flow control SERIAL: core: add hardware assisted h/w flow control support SERIAL: core: add hardware assisted s/w flow control support ... Conflicts: drivers/tty/serial/omap-serial.c
| * | | | | | | | | SERIAL: omap: fix hardware assisted flow controlRussell King2012-11-041-8/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the UART device has hardware flow control enabled, it ignores the MCR RTS bit in the MCR register, and keeps RTS asserted as long as we continue to read characters from the UART receiver FIFO. This means that when the TTY buffers become full, the UART doesn't tell the remote end to stop sending, which causes the TTY layer to start dropping characters. A similar problem exists with software flow control. We need the FIFO register to fill when software flow control is enabled to provoke the UART to send the XOFF character. Fix this by implementing the throttle/unthrottle callbacks, and use these to disable receiver interrupts. This in turn means that the UART FIFO will fill, which will then cause the UART's hardware to deassert the RTS signal and/or send the XOFF character, stopping the remote end. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: simplify (2)Russell King2012-11-041-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify: - set ECB ... - LCR mode A - clear TCRTLR - LCR mode B - clear ECB - set ECB and update other bits - LCR mode A - update XONANY to: - set ECB ... - LCR mode B - set ECB and update other bits - LCR mode A - update XONANY and clear TCRTLR Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: move xon/xoff setting earlierRussell King2012-11-041-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Take advantage of the switch to mode B for accessing the TCR register, and move the xon/xoff configuration there. This allows further simplication of this sequence. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: always set TCRRussell King2012-11-041-17/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We always setup the TCR register in the software flow control path, and when hardware flow control is enabled. Remove this redundant setup, and place it before we setup any hardware flow control. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: simplifyRussell King2012-11-041-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have the sequence: - LCR mode B - write EFR with ECB clear - LCR mode normal - if s/w flow - LCR mode B - write EFR with ECB clear ... - LCR mode B - write EFR with ECB clear - LCR mode normal This can be simplified to: - if s/w flow - LCR mode B - write EFR with ECB clear ... - LCR mode B - write EFR with ECB clear - LCR mode normal Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: don't read back LCR/MCR/EFRRussell King2012-11-041-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's really no reason to read back these registers while setting the termios modes, provided we keep our cached copies up to date. Remove these readbacks. This has the benefit that we know that the EFR_ECB and MCR_TCRTLR bits will always be clear, so we don't need to keep masking these bits throughout the code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: serial_omap_configure_xonxoff() contents into set_termiosRussell King2012-11-041-59/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: configure xon/xoff before setting modem control linesRussell King2012-11-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: move driver private definitions and structures to driverRussell King2012-11-041-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct uart_omap_port and struct uart_omap_dma, and associated definitions are private to the driver, so there's no point them sitting in an include file under arch/arm. Move them into the driver itself. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: remove 'irq_pending' bitfieldRussell King2012-11-041-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | irq_pending is never used, so let's remove it. It seems to be result of a bad rebase of d37c6cebcb0c (serial: omap: move uart_omap_port definition to C file) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: fix MCR TCRTLR bit handlingRussell King2012-11-041-16/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MCR TCRTLR bit can only be changed when ECB is set in the EFR. Unfortunately, several places were trying to alter this bit while ECB was clear: - serial_omap_configure_xonxoff() was attempting to clear the bit after explicitly clearing the ECB bit. - serial_omap_set_termios() was trying the same trick after setting the SCR, and when trying to change the TCR register when hardware flow control was enabled. Fix this by ensuring that we always have ECB set whenever the TCRTLR bit is changed. Moreover, we start out by reading the EFR and MCR registers, which may have indeterminent bit settings for the ECB and TCRTLR bits. Ensure that these bits always start off in a known state. In order to avoid any undesired behaviour appearing through fixing this, we also ensure that hardware assisted flow control is disabled while new driver specific parts are not in place. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: fix set_mctrl() breakageRussell King2012-11-041-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | c538d20c7f (and maybe previous commits) broke set_mctrl() by making it only capable of setting bits in the MCR register. This prevents software controlled flow control and modem control line manipulation via TIOCMSET/TIOCMBIC from working correctly. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: no need to re-read EFRRussell King2012-11-041-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to re-read EFR after we've recently written it; the register is a configuration register which doesn't change its value without us writing to it. The last value which was written to this register was up->efr. Removing this re-reading avoids the possibility that we end up with up->efr having unintended bits set, which should only be temporarily set when accessing the enhanced features. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: remove setting of EFR SCD bitRussell King2012-11-041-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SCD (special character detect) bit enables comparisons with XOFF2, which we do not program. As the XOFF2 character remains unprogrammed, there's little point enabling this feature along with its associated interrupt. Remove this, and ensure that the SCD bit is cleared. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: allow hardware assisted IXANY mode to be disabledRussell King2012-11-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing was clearing the UART_MCR_XONANY bit, so once the ixany mode gets set, there's no possibility to disable it. Clear this bit when IXANY mode is cleared. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: omap: allow hardware assisted rts/cts modes to be disabledRussell King2012-11-041-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is nothing which clears the auto RTS/CTS bits, so once hardware flow control gets enabled, there's no possibility to disable it. So, clear these bits when CRTSCTS is cleared. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: core: add throttle/unthrottle callbacks for hardware assisted flow ↵Russell King2012-11-041-4/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | control Add two callbacks for hardware assisted flow control; we need to know when the tty layers want us to stop and restart due to their buffer levels. Call a driver specific throttle/unthrottle function if and only if the driver indicates that it is using an enabled hardware assisted flow control method, otherwise fall back to the non-hardware assisted methods. Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | SERIAL: core: add hardware assisted h/w flow control supportRussell King2012-11-041-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ports which are handling h/w flow control in hardware must not have their RTS state altered depending on the tty's hardware-stopped state. Avoid this additional logic when setting the termios state. Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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