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2016-05-31OMAPDSS: HDMI5: Change DDC timingsJim Lodes
The DDC scl high and low times were set to the minimum values from the i2c specification, but the i2c specification takes into account the rise time and fall time to calculate the frequency. To pass HDMI certification DDC can not exceed 100kHz therefore in a system where the rise times and fall times are negligible the high and low times for scl need to be 10us. Signed-off-by: Jim Lodes <jim.lodes@garmin.com> Signed-off-by: J.D. Schroeder <jay.schroeder@garmin.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-31OMAPDSS: HDMI5: Fix AVI infoframeJim Lodes
The AVI infoframe R0-R3 in the 2nd data byte represents the Active Format Aspect Ratio. It is four bits long not two bits. This fixes that mask used to extract the bits before writing the bits to the hardware registers. Signed-off-by: Jim Lodes <jim.lodes@garmin.com> Signed-off-by: J.D. Schroeder <jay.schroeder@garmin.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-27remove lots of IS_ERR_VALUE abusesArnd Bergmann
Most users of IS_ERR_VALUE() in the kernel are wrong, as they pass an 'int' into a function that takes an 'unsigned long' argument. This happens to work because the type is sign-extended on 64-bit architectures before it gets converted into an unsigned type. However, anything that passes an 'unsigned short' or 'unsigned int' argument into IS_ERR_VALUE() is guaranteed to be broken, as are 8-bit integers and types that are wider than 'unsigned long'. Andrzej Hajda has already fixed a lot of the worst abusers that were causing actual bugs, but it would be nice to prevent any users that are not passing 'unsigned long' arguments. This patch changes all users of IS_ERR_VALUE() that I could find on 32-bit ARM randconfig builds and x86 allmodconfig. For the moment, this doesn't change the definition of IS_ERR_VALUE() because there are probably still architecture specific users elsewhere. Almost all the warnings I got are for files that are better off using 'if (err)' or 'if (err < 0)'. The only legitimate user I could find that we get a warning for is the (32-bit only) freescale fman driver, so I did not remove the IS_ERR_VALUE() there but changed the type to 'unsigned long'. For 9pfs, I just worked around one user whose calling conventions are so obscure that I did not dare change the behavior. I was using this definition for testing: #define IS_ERR_VALUE(x) ((unsigned long*)NULL == (typeof (x)*)NULL && \ unlikely((unsigned long long)(x) >= (unsigned long long)(typeof(x))-MAX_ERRNO)) which ends up making all 16-bit or wider types work correctly with the most plausible interpretation of what IS_ERR_VALUE() was supposed to return according to its users, but also causes a compile-time warning for any users that do not pass an 'unsigned long' argument. I suggested this approach earlier this year, but back then we ended up deciding to just fix the users that are obviously broken. After the initial warning that caused me to get involved in the discussion (fs/gfs2/dir.c) showed up again in the mainline kernel, Linus asked me to send the whole thing again. [ Updated the 9p parts as per Al Viro - Linus ] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.org/lkml/2016/1/7/363 Link: https://lkml.org/lkml/2016/5/27/486 Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # For nvmem part Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-25Merge tag 'pwm/for-4.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This set of changes introduces an atomic API to the PWM subsystem. This is influenced by the DRM atomic API that was introduced a while back, though it is obviously a lot simpler. The fundamental idea remains the same, though: drivers provide a single callback to implement the atomic configuration of a PWM channel. As a side-effect the PWM subsystem gains the ability for initial state retrieval, so that the logical state mirrors that of the hardware. Many use-cases don't care about this, but for others it is essential. These new features require changes in all users, which these patches take care of. The core is transitioned to use the atomic callback if available and provides a fallback mechanism for other drivers. Changes to transition users and drivers to the atomic API are postponed to v4.8" * tag 'pwm/for-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (30 commits) pwm: Add information about polarity, duty cycle and period to debugfs pwm: Switch to the atomic API pwm: Update documentation pwm: Add core infrastructure to allow atomic updates pwm: Add hardware readout infrastructure pwm: Move the enabled/disabled info into pwm_state pwm: Introduce the pwm_state concept pwm: Keep PWM state in sync with hardware state ARM: Explicitly apply PWM config extracted from pwm_args drm: i915: Explicitly apply PWM config extracted from pwm_args input: misc: pwm-beeper: Explicitly apply PWM config extracted from pwm_args input: misc: max8997: Explicitly apply PWM config extracted from pwm_args backlight: lm3630a: explicitly apply PWM config extracted from pwm_args backlight: lp855x: Explicitly apply PWM config extracted from pwm_args backlight: lp8788: Explicitly apply PWM config extracted from pwm_args backlight: pwm_bl: Use pwm_get_args() where appropriate fbdev: ssd1307fb: Use pwm_get_args() where appropriate regulator: pwm: Use pwm_get_args() where appropriate leds: pwm: Use pwm_get_args() where appropriate input: misc: max77693: Use pwm_get_args() where appropriate ...
2016-05-23Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "Here's the main drm pull request for 4.7, it's been a busy one, and I've been a bit more distracted in real life this merge window. Lots more ARM drivers, not sure if it'll ever end. I think I've at least one more coming the next merge window. But changes are all over the place, support for AMD Polaris GPUs is in here, some missing GM108 support for nouveau (found in some Lenovos), a bunch of MST and skylake fixes. I've also noticed a few fixes from Arnd in my inbox, that I'll try and get in asap, but I didn't think they should hold this up. New drivers: - Hisilicon kirin display driver - Mediatek MT8173 display driver - ARC PGU - bitstreamer on Synopsys ARC SDP boards - Allwinner A13 initial RGB output driver - Analogix driver for DisplayPort IP found in exynos and rockchip DRM Core: - UAPI headers fixes and C++ safety - DRM connector reference counting - DisplayID mode parsing for Dell 5K monitors - Removal of struct_mutex from drivers - Connector registration cleanups - MST robustness fixes - MAINTAINERS updates - Lockless GEM object freeing - Generic fbdev deferred IO support panel: - Support for a bunch of new panels i915: - VBT refactoring - PLL computation cleanups - DSI support for BXT - Color manager support - More atomic patches - GEM improvements - GuC fw loading fixes - DP detection fixes - SKL GPU hang fixes - Lots of BXT fixes radeon/amdgpu: - Initial Polaris support - GPUVM/Scheduler/Clock/Power improvements - ASYNC pageflip support - New mesa feature support nouveau: - GM108 support - Power sensor support improvements - GR init + ucode fixes. - Use GPU provided topology information vmwgfx: - Add host messaging support gma500: - Some cleanups and fixes atmel: - Bridge support - Async atomic commit support fsl-dcu: - Timing controller for LCD support - Pixel clock polarity support rcar-du: - Misc fixes exynos: - Pipeline clock support - Exynoss4533 SoC support - HW trigger mode support - export HDMI_PHY clock - DECON5433 fixes - Use generic prime functions - use DMA mapping APIs rockchip: - Lots of little fixes vc4: - Render node support - Gamma ramp support - DPI output support msm: - Mostly cleanups and fixes - Conversion to generic struct fence etnaviv: - Fix for prime buffer handling - Allow hangcheck to be coalesced with other wakeups tegra: - Gamme table size fix" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1050 commits) drm/edid: add displayid detailed 1 timings to the modelist. (v1.1) drm/edid: move displayid validation to it's own function. drm/displayid: Iterate over all DisplayID blocks drm/edid: move displayid tiled block parsing into separate function. drm: Nuke ->vblank_disable_allowed drm/vmwgfx: Report vmwgfx version to vmware.log drm/vmwgfx: Add VMWare host messaging capability drm/vmwgfx: Kill some lockdep warnings drm/nouveau/gr/gf100-: fix race condition in fecs/gpccs ucode drm/nouveau/core: recognise GM108 chipsets drm/nouveau/gr/gm107-: fix touching non-existent ppcs in attrib cb setup drm/nouveau/gr/gk104-: share implementation of ppc exception init drm/nouveau/gr/gk104-: move rop_active_fbps init to nonctx drm/nouveau/bios/pll: check BIT table version before trying to parse it drm/nouveau/bios/pll: prevent oops when limits table can't be parsed drm/nouveau/volt/gk104: round up in gk104_volt_set drm/nouveau/fb/gm200: setup mmu debug buffer registers at init() drm/nouveau/fb/gk20a,gm20b: setup mmu debug buffer registers at init() drm/nouveau/fb/gf100-: allocate mmu debug buffers drm/nouveau/fb: allow chipset-specific actions for oneinit() ...
2016-05-20Merge tag 'char-misc-4.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver updates from Greg KH: "Here's the big char and misc driver update for 4.7-rc1. Lots of different tiny driver subsystems have updates here with new drivers and functionality. Details in the shortlog. All have been in linux-next with no reported issues for a while" * tag 'char-misc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (125 commits) mcb: Delete num_cells variable which is not required mcb: Fixed bar number assignment for the gdd mcb: Replace ioremap and request_region with the devm version mcb: Implement bus->dev.release callback mcb: export bus information via sysfs mcb: Correctly initialize the bus's device mei: bus: call mei_cl_read_start under device lock coresight: etb10: adjust read pointer only when needed coresight: configuring ETF in FIFO mode when acting as link coresight: tmc: implementing TMC-ETF AUX space API coresight: moving struct cs_buffers to header file coresight: tmc: keep track of memory width coresight: tmc: make sysFS and Perf mode mutually exclusive coresight: tmc: dump system memory content only when needed coresight: tmc: adding mode of operation for link/sinks coresight: tmc: getting rid of multiple read access coresight: tmc: allocating memory when needed coresight: tmc: making prepare/unprepare functions generic coresight: tmc: splitting driver in ETB/ETF and ETR components coresight: tmc: cleaning up header file ...
2016-05-20Merge tag 'tty-4.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty and serial driver updates from Greg KH: "Here's the large TTY and Serial driver update for 4.7-rc1. A few new serial drivers are added here, and Peter has fixed a bunch of long-standing bugs in the tty layer and serial drivers as normal. Full details in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (88 commits) MAINTAINERS: 8250: remove website reference serial: core: Fix port mutex assert if lockdep disabled serial: 8250_dw: fix wrong logic in dw8250_check_lcr() tty: vt, finish looping on duplicate tty: vt, return error when con_startup fails QE-UART: add "fsl,t1040-ucc-uart" to of_device_id serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios serial: 8250dw: Add device HID for future AMD UART controller Fix OpenSSH pty regression on close serial: mctrl_gpio: add IRQ locking serial: 8250: Integrate Fintek into 8250_base serial: mps2-uart: add support for early console serial: mps2-uart: add MPS2 UART driver dt-bindings: document the MPS2 UART bindings serial: sirf: Use generic uart-has-rtscts DT property serial: sirf: Introduce helper variable struct device_node *np serial: mxs-auart: Use generic uart-has-rtscts DT property serial: imx: Use generic uart-has-rtscts DT property doc: DT: Add Generic Serial Device Tree Bindings serial: 8250: of: Make tegra_serial_handle_break() static ...
2016-05-20Merge tag 'fbdev-4.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: - imxfb: fix lcd power up - small fixes and cleanups * tag 'fbdev-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: fbdev: Use IS_ENABLED() instead of checking for built-in or module efifb: Don't show the mapping VA video: AMBA CLCD: Remove unncessary include in amba-clcd.c fbdev: ssd1307fb: Fix charge pump setting Documentation: fb: fix spelling mistakes fbdev: fbmem: implement error handling in fbmem_init() fbdev: sh_mipi_dsi: remove driver video: fbdev: imxfb: add some error handling video: fbdev: imxfb: fix semantic of .get_power and .set_power video: fbdev: omap2: Remove deprecated regulator_can_change_voltage() usage
2016-05-17backlight: lm3630a: explicitly apply PWM config extracted from pwm_argsBoris Brezillon
Call pwm_apply_args() just after requesting the PWM device so that the polarity and period are initialized according to the information provided in pwm_args. This is an intermediate state, and pwm_apply_args() should be dropped as soon as the atomic PWM infrastructure is in place and the driver makes use of it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17backlight: lp855x: Explicitly apply PWM config extracted from pwm_argsBoris Brezillon
Call pwm_apply_args() just after requesting the PWM device so that the polarity and period are initialized according to the information provided in pwm_args. This is an intermediate state, and pwm_apply_args() should be dropped as soon as the atomic PWM infrastructure is in place and the driver makes use of it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17backlight: lp8788: Explicitly apply PWM config extracted from pwm_argsBoris Brezillon
Call pwm_apply_args() just after requesting the PWM device so that the polarity and period are initialized according to the information provided in pwm_args. This is an intermediate state, and pwm_apply_args() should be dropped as soon as the atomic PWM infrastructure is in place and the driver makes use of it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17backlight: pwm_bl: Use pwm_get_args() where appropriateBoris Brezillon
The PWM framework has clarified the concept of reference PWM config (the platform dependent config retrieved from the DT or the PWM lookup table) and real PWM state. Use pwm_get_args() when the PWM user wants to retrieve this reference config and not the current state. This is part of the rework allowing the PWM framework to support hardware readout and expose real PWM state even when the PWM has just been requested (before the user calls pwm_config/enable/disable()). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17fbdev: ssd1307fb: Use pwm_get_args() where appropriateBoris Brezillon
The PWM framework has clarified the concept of reference PWM config (the platform dependent config retrieved from the DT or the PWM lookup table) and real PWM state. Use pwm_get_args() when the PWM user wants to retrieve this reference config and not the current state. This is part of the rework allowing the PWM framework to support hardware readout and expose real PWM state even when the PWM has just been requested (before the user calls pwm_config/enable/disable()). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17backlight: lm3630a_bl: Stop messing with the pwm->period fieldBoris BREZILLON
pwm->period field is not supposed to be changed by PWM users. The only ones authorized to change it are the PWM core and PWM drivers. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-17backlight: pwm_bl: Remove useless call to pwm_set_period()Boris BREZILLON
The PWM period will be set when calling pwm_config. Remove this useless call to pwm_set_period(), which might mess up the internal PWM state. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-05-16Merge tag 'acpi-4.7-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "The new features here are ACPI 6.1 support (and some previously missing bits of ACPI 6.0 support) in ACPICA and two new drivers, a driver for the ACPI Generic Event Device (GED) feature introduced by ACPI 6.1 and the INT3406 thermal driver for display thermal management. Also the value returned by the _HRV (hardware revision) ACPI object will be exported to user space via sysfs now. In addition to that, ACPI on ARM64 will not depend on EXPERT any more. The rest is mostly fixes and cleanups and some code reorganization. Specifics: - In-kernel ACPICA code update to the upstream release 20160422 adding support for ACPI 6.1 along with some previously missing bits of ACPI 6.0 support, making a fair amount of fixes and cleanups and reducing divergences between the upstream ACPICA and the in-kernel code (Bob Moore, Lv Zheng, Al Stone, Aleksey Makarov, Will Miles) - ACPI Generic Event Device (GED) support and a fix for it (Sinan Kaya, Paul Gortmaker) - INT3406 thermal driver for display thermal management and ACPI backlight support code reorganization related to it (Aaron Lu, Arnd Bergmann) - Support for exporting the value returned by the _HRV (hardware revision) ACPI object via sysfs (Betty Dall) - Removal of the EXPERT dependency for ACPI on ARM64 (Mark Brown) - Rework of the handling of ACPI _OSI mechanism allowing the _OSI("Darwin") support to be overridden from the kernel command line among other things (Lv Zheng, Chen Yu) - Rework of the ACPI tables override mechanism to prepare it for the introduction of overlays support going forward (Lv Zheng, Rafael Wysocki) - Fixes related to the ECDT support and module-level execution of AML (Lv Zheng) - ACPI PCI interrupts management update to make it work better on ARM64 mostly (Sinan Kaya) - ACPI SRAT handling update to make the code process all entires in the table order regardless of the entry type (Lukasz Anaczkowski) - EFI power off support for full-hardware ACPI platforms that don't support ACPI S5 (Chen Yu) - Fixes and cleanups related to the ACPI core's sysfs interface (Dan Carpenter, Betty Dall) - acpi_dev_present() API rework to reduce possible confusion related to it (Lukas Wunner) - Removal of CLK_IS_ROOT from two ACPI drivers (Stephen Boyd)" * tag 'acpi-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (82 commits) ACPI / video: mark acpi_video_get_levels() inline Thermal / ACPI / video: add INT3406 thermal driver ACPI / GED: make evged.c explicitly non-modular ACPI / tables: Fix DSDT override mechanism ACPI / sysfs: fix error code in get_status() ACPICA: Update version to 20160422 ACPICA: Move all ASCII utilities to a common file ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support for acpi_hw_write() ACPICA: ACPI 2.0, Hardware: Add access_width/bit_offset support in acpi_hw_read() ACPICA: Executer: Introduce a set of macros to handle bit width mask generation ACPICA: Hardware: Add optimized access bit width support ACPICA: Utilities: Add ACPI_IS_ALIGNED() macro ACPICA: Renamed some #defined flag constants for clarity ACPICA: ACPI 6.0, tools/iasl: Add support for new resource descriptors ACPICA: ACPI 6.0: Update _BIX support for new package element ACPICA: ACPI 6.1: Support for new PCCT subtable ACPICA: Refactor evaluate_object to reduce nesting ACPICA: Divergence: remove unwanted spaces for typedef ACPI,PCI,IRQ: remove SCI penalize function ACPI,PCI,IRQ: remove redundant code in acpi_irq_penalty_init() ..
2016-05-13fbdev: Use IS_ENABLED() instead of checking for built-in or moduleJavier Martinez Canillas
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-13efifb: Don't show the mapping VAAndy Lutomirski
The framebuffer mapping virtual address leaks information about the kernel memory layout. Stop logging it. Cc: Peter Jones <pjones@redhat.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10video: AMBA CLCD: Remove unncessary include in amba-clcd.cWang Hongcheng
The header file asm/sizes.h is unnecessary. And it can also be compiled under X86 arch after the removal. Signed-off-by: Wang Hongcheng <annie.wang@amd.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10fbdev: ssd1307fb: Fix charge pump settingJulian Scheel
Make sure bit 4 is set for the charge pump setting. It is required according to SSD1306 App Note. Signed-off-by: Julian Scheel <julian@jusst.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10fbdev: fbmem: implement error handling in fbmem_init()Alexey Khoroshilov
fbmem_init() ignores all errors, while fbmem_exit() does not check if deallocating resources are valid. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10fbdev: sh_mipi_dsi: remove driverSimon Horman
Remove the sh_mipi_dsi driver as it appears to be unused since c0bb9b302769 ("ARCH: ARM: shmobile: Remove ag5evm board support"). Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10video: fbdev: imxfb: add some error handlingUwe Kleine-König
clk_prepare_enable can fail and if it does the controller must not be considered enabled. So check for errors, properly unwind and give the error code back to the caller. While touching the clock code also enable the clocks in the same direction and disable in reverse order. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10video: fbdev: imxfb: fix semantic of .get_power and .set_powerUwe Kleine-König
.set_power gets passed an FB_BLANK_XXX value, not a bool. So 0 signals on; and >1 means off. The same applies for return values of .get_power. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-09Merge 4.6-rc7 into char-misc-testingGreg Kroah-Hartman
This resolves a merge issue with drivers/hv/ring_buffer.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-09Merge tag 'v4.6-rc7' into drm-nextDave Airlie
Merge this back as we've built up a fair few conflicts, and I have some newer trees to pull in.
2016-05-04video / backlight: remove the backlight_device_registered APIAaron Lu
Since we will need the backlight_device_get_by_type API, we can use it instead of the backlight_device_registered API whenever necessary so remove the backlight_device_registered API. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-05-04video / backlight: add two APIs for drivers to useAaron Lu
It is useful to get the backlight device's pointer and use it to set backlight in some cases(the following patch will make use of it) so add the two APIs and export them. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-05-02fbdev: fb_defio: Export fb_deferred_io_mmapNoralf Trønnes
Export fb_deferred_io_mmap so drivers can change vma->vm_page_prot. When the framebuffer memory is allocated using dma_alloc_writecombine() instead of vmalloc(), I get cache syncing problems on ARM. This solves it: static int drm_fbdev_cma_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma) { fb_deferred_io_mmap(info, vma); vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); return 0; } Could this have been done in the core? Drivers that don't set (struct fb_ops *)->fb_mmap, gets a call to fb_pgprotect() at the end of the default fb_mmap implementation (drivers/video/fbdev/core/fbmem.c). This is an architecture specific function that on many platforms uses pgprot_writecombine(), but not on all. And looking at some of the fb_mmap implementations, some of them sets vm_page_prot to nocache for instance, so I think the safest bet is to do this in the driver and not in the fbdev core. And we can't call fb_pgprotect() from fb_deferred_io_mmap() either because we don't have access to the file pointer that powerpc needs. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-5-git-send-email-noralf@tronnes.org
2016-04-30drivers:hv: Use new vmbus_mmio_free() from client drivers.Jake Oshins
This patch modifies all the callers of vmbus_mmio_allocate() to call vmbus_mmio_free() instead of release_mem_region(). Signed-off-by: Jake Oshins <jakeo@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-30tty: vt, make color_table constJiri Slaby
This means all ->con_set_palette have to have the second parameter const too now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-29video: fbdev: omap2: Remove deprecated regulator_can_change_voltage() usagePeter Ujfalusi
regulator_can_change_voltage() is deprecated and it's use is not necessary as commit: 6a0028b3dd67b regulator: Deprecate regulator_can_change_voltage() describers it clearly. As there is no practical use of it it can be removed. At this point the regulator_set_voltage() calls can not be removed as the DT data need to be fixed first. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-04-28efifb: Enable the efi-framebuffer platform driver for ARM and arm64Ard Biesheuvel
Allows the efifb driver to be built for ARM and arm64. This simply involves updating the Kconfig dependency expression, and supplying dummy versions of efifb_setup_from_dmi(). Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Borislav Petkov <bp@alien8.de> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Jones <pjones@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1461614832-17633-25-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28efifb: Use builtin_platform_driver and drop unused includesArd Biesheuvel
Since efifb can only be built directly into the kernel, drop the module specific includes and definitions. Drop some other includes we don't need as well. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Acked-by: Peter Jones <pjones@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1461614832-17633-20-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28x86/efi/efifb: Move DMI based quirks handling out of generic codeArd Biesheuvel
The efifb quirks handling based on DMI identification of the platform is specific to x86, so move it to x86 arch code. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Acked-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Peter Jones <pjones@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1461614832-17633-19-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-18omapfb: panel-sharp-ls037v7dw01: fix check of gpio_to_desc() return valueVladimir Zapolskiy
The change fixes a check of gpio_to_desc() return value, the function returns either a valid pointer to struct gpio_desc or NULL, this makes IS_ERR() check invalid and may lead to a NULL pointer dereference in runtime. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-04-18video: ARM CLCD: runtime check for VersatileLinus Walleij
The current compile-time check for inversed IENB/CNTL does not work in multiplatform boots: as soon as versatile is included in the build, the IENB/CNTL is switched and breaks graphics. Convert this to a runtime switch. Cc: stable@vger.kernel.org Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Fixes: a29da136de34 ("ARM: versatile: convert to multi-platform") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-04-04mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macrosKirill A. Shutemov
PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-23Merge tag 'clk-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The clk changes for this release cycle are mostly dominated by new device support in terms of LoC, but there has been some cleanup in the core as well as the usual minor clk additions to various drivers. Core: - parent tracking has been simplified - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started - of_clk_init() doesn't consider disabled DT nodes anymore - clk_unregister() had an error path bug squashed - of_clk_get_parent_count() has been fixed to only return unsigned ints - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone New Drivers: - NXP LPC18xx creg - QCOM IPQ4019 GCC - TI dm814x ADPLL - i.MX6QP Updates: - Cyngus audio clks found on Broadcom iProc devices - Non-critical fixes for BCM2385 PLLs - Samsung exynos5433 updates for clk id errors, HDMI support, suspend/resume simplifications - USB, CAN, LVDS, and FCP clks on shmobile devices - sunxi got support for more clks on new SoCs and went through a minor refactoring/rewrite to use a simpler factor clk construct - rockchip added some more clk ids and added suport for fraction dividers - QCOM GDSCs in msm8996 - A new devm helper to make adding custom actions simpler (acked by Greg)" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits) clk: bcm2835: fix check of error code returned by devm_ioremap_resource() clk: renesas: div6: use RENESAS for #define clk: renesas: Rename header file renesas.h clk: max77{686,802}: Remove CLK_IS_ROOT clk: versatile: Remove CLK_IS_ROOT clk: sunxi: Remove use of variable length array clk: fixed-rate: Remove CLK_IS_ROOT clk: qcom: Remove CLK_IS_ROOT doc: dt: add documentation for lpc1850-creg-clk driver clk: add lpc18xx creg clk driver clk: lpc32xx: fix compilation warning clk: xgene: Add missing parenthesis when clearing divider value clk: mb86s7x: Remove CLK_IS_ROOT clk: x86: Remove clkdev.h and clk.h includes clk: x86: Remove CLK_IS_ROOT clk: mvebu: Remove CLK_IS_ROOT clk: renesas: move drivers to renesas directory clk: si5{14,351,70}: Remove CLK_IS_ROOT clk: scpi: Remove CLK_IS_ROOT clk: s2mps11: Remove CLK_IS_ROOT ...
2016-03-21Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.6 kernel. Overall the coolest thing here for me is the nouveau maxwell signed firmware support from NVidia, it's taken a long while to extract this from them. I also wish the ARM vendors just designed one set of display IP, ARM display block proliferation is definitely increasing. Core: - drm_event cleanups - Internal API cleanup making mode_fixup optional. - Apple GMUX vga switcheroo support. - DP AUX testing interface Panel: - Refactoring of DSI core for use over more transports. New driver: - ARM hdlcd driver i915: - FBC/PSR (framebuffer compression, panel self refresh) enabled by default. - Ongoing atomic display support work - Ongoing runtime PM work - Pixel clock limit checks - VBT DSI description support - GEM fixes - GuC firmware scheduler enhancements amdkfd: - Deferred probing fixes to avoid make file or link ordering. amdgpu/radeon: - ACP support for i2s audio support. - Command Submission/GPU scheduler/GPUVM optimisations - Initial GPU reset support for amdgpu vmwgfx: - Support for DX10 gen mipmaps - Pageflipping and other fixes. exynos: - Exynos5420 SoC support for FIMD - Exynos5422 SoC support for MIPI-DSI nouveau: - GM20x secure boot support - adds acceleration for Maxwell GPUs. - GM200 support - GM20B clock driver support - Power sensors work etnaviv: - Correctness fixes for GPU cache flushing - Better support for i.MX6 systems. imx-drm: - VBlank IRQ support - Fence support - OF endpoint support msm: - HDMI support for 8996 (snapdragon 820) - Adreno 430 support - Timestamp queries support virtio-gpu: - Fixes for Android support. rockchip: - Add support for Innosilicion HDMI rcar-du: - Support for 4 crtcs - R8A7795 support - RCar Gen 3 support omapdrm: - HDMI interlace output support - dma-buf import support - Refactoring to remove a lot of legacy code. tilcdc: - Rewrite of pageflipping code - dma-buf support - pinctrl support vc4: - HDMI modesetting bug fixes - Significant 3D performance improvement. fsl-dcu (FreeScale): - Lots of fixes tegra: - Two small fixes sti: - Atomic support for planes - Improved HDMI support" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1063 commits) drm/amdgpu: release_pages requires linux/pagemap.h drm/sti: restore mode_fixup callback drm/amdgpu/gfx7: add MTYPE definition drm/amdgpu: removing BO_VAs shouldn't be interruptible drm/amd/powerplay: show uvd/vce power gate enablement for tonga. drm/amd/powerplay: show uvd/vce power gate info for fiji drm/amdgpu: use sched fence if possible drm/amdgpu: move ib.fence to job.fence drm/amdgpu: give a fence param to ib_free drm/amdgpu: include the right version of gmc header files for iceland drm/radeon: fix indentation. drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ drm/amdgpu: switch back to 32bit hw fences v2 drm/amdgpu: remove amdgpu_fence_is_signaled drm/amdgpu: drop the extra fence range check v2 drm/amdgpu: signal fences directly in amdgpu_fence_process drm/amdgpu: cleanup amdgpu_fence_wait_empty v2 drm/amdgpu: keep all fences in an RCU protected array v2 drm/amdgpu: add number of hardware submissions to amdgpu_fence_driver_init_ring drm/amdgpu: RCU protected amd_sched_fence_release ...
2016-03-20Merge branch 'mm-pkeys-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 protection key support from Ingo Molnar: "This tree adds support for a new memory protection hardware feature that is available in upcoming Intel CPUs: 'protection keys' (pkeys). There's a background article at LWN.net: https://lwn.net/Articles/643797/ The gist is that protection keys allow the encoding of user-controllable permission masks in the pte. So instead of having a fixed protection mask in the pte (which needs a system call to change and works on a per page basis), the user can map a (handful of) protection mask variants and can change the masks runtime relatively cheaply, without having to change every single page in the affected virtual memory range. This allows the dynamic switching of the protection bits of large amounts of virtual memory, via user-space instructions. It also allows more precise control of MMU permission bits: for example the executable bit is separate from the read bit (see more about that below). This tree adds the MM infrastructure and low level x86 glue needed for that, plus it adds a high level API to make use of protection keys - if a user-space application calls: mmap(..., PROT_EXEC); or mprotect(ptr, sz, PROT_EXEC); (note PROT_EXEC-only, without PROT_READ/WRITE), the kernel will notice this special case, and will set a special protection key on this memory range. It also sets the appropriate bits in the Protection Keys User Rights (PKRU) register so that the memory becomes unreadable and unwritable. So using protection keys the kernel is able to implement 'true' PROT_EXEC on x86 CPUs: without protection keys PROT_EXEC implies PROT_READ as well. Unreadable executable mappings have security advantages: they cannot be read via information leaks to figure out ASLR details, nor can they be scanned for ROP gadgets - and they cannot be used by exploits for data purposes either. We know about no user-space code that relies on pure PROT_EXEC mappings today, but binary loaders could start making use of this new feature to map binaries and libraries in a more secure fashion. There is other pending pkeys work that offers more high level system call APIs to manage protection keys - but those are not part of this pull request. Right now there's a Kconfig that controls this feature (CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) that is default enabled (like most x86 CPU feature enablement code that has no runtime overhead), but it's not user-configurable at the moment. If there's any serious problem with this then we can make it configurable and/or flip the default" * 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits) x86/mm/pkeys: Fix mismerge of protection keys CPUID bits mm/pkeys: Fix siginfo ABI breakage caused by new u64 field x86/mm/pkeys: Fix access_error() denial of writes to write-only VMA mm/core, x86/mm/pkeys: Add execute-only protection keys support x86/mm/pkeys: Create an x86 arch_calc_vm_prot_bits() for VMA flags x86/mm/pkeys: Allow kernel to modify user pkey rights register x86/fpu: Allow setting of XSAVE state x86/mm: Factor out LDT init from context init mm/core, x86/mm/pkeys: Add arch_validate_pkey() mm/core, arch, powerpc: Pass a protection key in to calc_vm_flag_bits() x86/mm/pkeys: Actually enable Memory Protection Keys in the CPU x86/mm/pkeys: Add Kconfig prompt to existing config option x86/mm/pkeys: Dump pkey from VMA in /proc/pid/smaps x86/mm/pkeys: Dump PKRU with other kernel registers mm/core, x86/mm/pkeys: Differentiate instruction fetches x86/mm/pkeys: Optimize fault handling in access_error() mm/core: Do not enforce PKEY permissions on remote mm access um, pkeys: Add UML arch_*_access_permitted() methods mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys x86/mm/gup: Simplify get_user_pages() PTE bit handling ...
2016-03-17Merge tag 'gpio-v4.6-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for kernel v4.6. There is quite a lot of interesting stuff going on. The patches to other subsystems and arch-wide are ACKed as far as possible, though I consider things like per-arch <asm/gpio.h> as essentially a part of the GPIO subsystem so it should not be needed. Core changes: - The gpio_chip is now a *real device*. Until now the gpio chips were just piggybacking the parent device or (gasp) floating in space outside of the device model. We now finally make GPIO chips devices. The gpio_chip will create a gpio_device which contains a struct device, and this gpio_device struct is kept private. Anything that needs to be kept private from the rest of the kernel will gradually be moved over to the gpio_device. - As a result of making the gpio_device a real device, we have added resource management, so devm_gpiochip_add_data() will cut down on overhead and reduce code lines. A huge slew of patches convert almost all drivers in the subsystem to use this. - Building on making the GPIO a real device, we add the first step of a new userspace ABI: the GPIO character device. We take small steps here, so we first add a pure *information* ABI and the tool "lsgpio" that will list all GPIO devices on the system and all lines on these devices. We can now discover GPIOs properly from userspace. We still have not come up with a way to actually *use* GPIOs from userspace. - To encourage people to use the character device for the future, we have it always-enabled when using GPIO. The old sysfs ABI is still opt-in (and can be used in parallel), but is marked as deprecated. We will keep it around for the foreseeable future, but it will not be extended to cover ever more use cases. Cleanup: - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h> includes. This dates back to when GPIO was an opt-in feature and no shared library even existed: just a header file with proper prototypes was provided and all semantics were up to the arch to implement. These patches make the GPIO chip even more a proper device and cleans out leftovers of the old in-kernel API here and there. Still some cruft is left but it's very little now. - There is still some clamping of return values for .get() going on, but we now return sane values in the vast majority of drivers and the errorpath is sanitized. Some patches for powerpc, blackfin and unicore still drop in. - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO implementations to use gpiochip_add_data() and cut down on code lines. - MPC8xxx is converted to use the generic GPIO helpers. - ATH79 is converted to use the generic GPIO helpers. New drivers: - WinSystems WS16C48 - Acces 104-DIO-48E - F81866 (a F7188x variant) - Qoric (a MPC8xxx variant) - TS-4800 - SPI serializers (pisosr): simple 74xx shift registers connected to SPI to obtain a dirt-cheap output-only GPIO expander. - Texas Instruments TPIC2810 - Texas Instruments TPS65218 - Texas Instruments TPS65912 - X-Gene (ARM64) standby GPIO controller" * tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits) Revert "Share upstreaming patches" gpio: mcp23s08: Fix clearing of interrupt. gpiolib: Fix comment referring to gpio_*() in gpiod_*() gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit gpio: xgene: Fix kconfig for standby GIPO contoller gpio: Add generic serializer DT binding gpio: uapi: use 0xB4 as ioctl() major gpio: tps65912: fix bad merge Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free" gpio: omap: drop dev field from gpio_bank structure gpio: mpc8xxx: Slightly update the code for better readability gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip gpio: mpc8xxx: Fixup setting gpio direction output gpio: mcp23s08: Add support for mcp23s18 dt-bindings: gpio: altera: Fix altr,interrupt-type property gpio: add driver for MEN 16Z127 GPIO controller gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free gpio: timberdale: Switch to devm_ioremap_resource() gpio: ts4800: Add IMX51 dependency gpiolib: rewrite gpiodev_add_to_list ...
2016-03-16Merge tag 'fbdev-4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: - Miscallaneous small fixes to various fbdev drivers - Remove fb_rotate, which was never used - pmag fb improvements * tag 'fbdev-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (21 commits) xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND" video: fbdev: sis: remove unused variable drivers/video: make fbdev/sunxvr2500.c explicitly non-modular drivers/video: make fbdev/sunxvr1000.c explicitly non-modular drivers/video: make fbdev/sunxvr500.c explicitly non-modular video: exynos: fix modular build fbdev: da8xx-fb: fix videomodes of lcd panels fbdev: kill fb_rotate video: fbdev: bt431: Correct cursor format control macro video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing video: fbdev: pmag-ba-fb: Fix and rework Bt455 colormap handling video: fbdev: bt455: Remove unneeded colormap helpers for cursor support video: fbdev: pmag-aa-fb: Report video timings video: fbdev: pmag-aa-fb: Enable building as a module video: fbdev: pmag-aa-fb: Adapt to current APIs video: fbdev: pmag-ba-fb: Fix the lower margin size fbdev: sh_mobile_lcdc: Use ARCH_RENESAS fbdev: n411: check return value fbdev: exynos: fix IS_ERR_VALUE usage video: Use bool instead int pointer for get_opt_bool() argument ...
2016-03-16Merge tag 'pci-v4.6-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for v4.6: Enumeration: - Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas) - Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas Resource management: - Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas) - Don't assign or reassign immutable resources (Bjorn Helgaas) - Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas) - Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas) - Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas) - ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas) - ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas) - MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas) - Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas) - Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas) - rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi) - designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi) Virtualization: - Wait for up to 1000ms after FLR reset (Alex Williamson) - Support SR-IOV on any function type (Kelly Zytaruk) - Add ACS quirk for all Cavium devices (Manish Jaggi) AER: - Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas) - Restore pci_ops pointer while calling original pci_ops (David Daney) - Fix aer_inject error codes (Jean Delvare) - Use dev_warn() in aer_inject (Jean Delvare) - Log actual error causes in aer_inject (Jean Delvare) - Log aer_inject error injections (Jean Delvare) VPD: - Prevent VPD access for buggy devices (Babu Moger) - Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas) - Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas) - Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas) - Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas) - Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas) - Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas) - Update VPD definitions (Hannes Reinecke) - Allow access to VPD attributes with size 0 (Hannes Reinecke) - Determine actual VPD size on first access (Hannes Reinecke) Generic host bridge driver: - Move structure definitions to separate header file (David Daney) - Add pci_host_common_probe(), based on gen_pci_probe() (David Daney) - Expose pci_host_common_probe() for use by other drivers (David Daney) Altera host bridge driver: - Fix altera_pcie_link_is_up() (Ley Foon Tan) Cavium ThunderX host bridge driver: - Add PCIe host driver for ThunderX processors (David Daney) - Add driver for ThunderX-pass{1,2} on-chip devices (David Daney) Freescale i.MX6 host bridge driver: - Add DT bindings to configure PHY Tx driver settings (Justin Waters) - Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach) - Move PHY reset into imx6_pcie_establish_link() (Lucas Stach) - Remove broken Gen2 workaround (Lucas Stach) - Move link up check into imx6_pcie_wait_for_link() (Lucas Stach) Freescale Layerscape host bridge driver: - Add "fsl,ls2085a-pcie" compatible ID (Yang Shi) Intel VMD host bridge driver: - Attach VMD resources to parent domain's resource tree (Jon Derrick) - Set bus resource start to 0 (Keith Busch) Microsoft Hyper-V host bridge driver: - Add fwnode_handle to x86 pci_sysdata (Jake Oshins) - Look up IRQ domain by fwnode_handle (Jake Oshins) - Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins) NVIDIA Tegra host bridge driver: - Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding) - Implement ->{add,remove}_bus() callbacks (Thierry Reding) - Remove unused struct tegra_pcie.num_ports field (Thierry Reding) - Track bus -> CPU mapping (Thierry Reding) - Remove misleading PHYS_OFFSET (Thierry Reding) Renesas R-Car host bridge driver: - Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman) Synopsys DesignWare host bridge driver: - ARC: Add PCI support (Joao Pinto) - Add generic dw_pcie_wait_for_link() (Joao Pinto) - Add default link up check if sub-driver doesn't override (Joao Pinto) - Add driver for prototyping kits based on ARC SDP (Joao Pinto) TI Keystone host bridge driver: - Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin) Xilinx AXI host bridge driver: - Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada) - Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada) - Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada) - Update Zynq binding with Microblaze node (Bharat Kumar Gogada) - microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada) Xilinx NWL host bridge driver: - Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada) Miscellaneous: - Check device_attach() return value always (Bjorn Helgaas) - Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas) - Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas) - ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas) - Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas) - Remove includes of asm/pci-bridge.h (Bjorn Helgaas) - Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas) - unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas) - Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler) - Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas) - Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa) - frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig) - Move pci_dma_* helpers to common code (Christoph Hellwig) - Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus) - Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson) - Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)" * tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits) PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition PCI: designware: Add driver for prototyping kits based on ARC SDP PCI: designware: Add default link up check if sub-driver doesn't override PCI: designware: Add generic dw_pcie_wait_for_link() PCI: Cleanup pci/pcie/Kconfig whitespace PCI: Simplify pci_create_attr() control flow PCI: Don't leak memory if sysfs_create_bin_file() fails PCI: Simplify sysfs ROM cleanup PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource MIPS: Loongson 3: Use temporary struct resource * to avoid repetition ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource ia64/PCI: Use ioremap() instead of open-coded equivalent ia64/PCI: Use temporary struct resource * to avoid repetition PCI: Clean up pci_map_rom() whitespace PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices PCI: thunder: Add PCIe host driver for ThunderX processors PCI: generic: Expose pci_host_common_probe() for use by other drivers PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe() ...
2016-03-14Merge drm-fixes into drm-next.Dave Airlie
Nouveau wanted this to avoid some worse conflicts when I merge that.
2016-03-11xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND"Arnd Bergmann
The Xen framebuffer driver selects the xen keyboard driver, so the latter will be built-in if XEN_FBDEV_FRONTEND=y. However, when CONFIG_INPUT is a loadable module, this configuration cannot work. On mainline kernels, the symbol will be enabled but not used, while in combination with a patch I have to detect such useless configurations, we get the expected link failure: drivers/input/built-in.o: In function `xenkbd_remove': xen-kbdfront.c:(.text+0x2f0): undefined reference to `input_unregister_device' xen-kbdfront.c:(.text+0x30e): undefined reference to `input_unregister_device' This removes the extra "select", as it just causes more trouble than it helps. In theory, some defconfig file might break if it has XEN_FBDEV_FRONTEND in it but not INPUT_XEN_KBDDEV_FRONTEND. The Kconfig fragment we ship in the kernel (kernel/configs/xen.config) however already enables both, and anyone using an old .config file would keep having both enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: David Vrabel <david.vrabel@citrix.com> Fixes: 36c1132e34bd ("xen kconfig: fix select INPUT_XEN_KBDDEV_FRONTEND") Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-03-09dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()Luis R. Rodriguez
Rename dma_*_writecombine() to dma_*_wc(), so that the naming is coherent across the various write-combining APIs. Keep the old names for compatibility for a while, these can be removed at a later time. A guard is left to enable backporting of the rename, and later remove of the old mapping defines seemlessly. Build tested successfully with allmodconfig. The following Coccinelle SmPL patch was used for this simple transformation: @ rename_dma_alloc_writecombine @ expression dev, size, dma_addr, gfp; @@ -dma_alloc_writecombine(dev, size, dma_addr, gfp) +dma_alloc_wc(dev, size, dma_addr, gfp) @ rename_dma_free_writecombine @ expression dev, size, cpu_addr, dma_addr; @@ -dma_free_writecombine(dev, size, cpu_addr, dma_addr) +dma_free_wc(dev, size, cpu_addr, dma_addr) @ rename_dma_mmap_writecombine @ expression dev, vma, cpu_addr, dma_addr, size; @@ -dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size) +dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size) We also keep the old names as compatibility helpers, and guard against their definition to make backporting easier. Generated-by: Coccinelle SmPL Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: airlied@linux.ie Cc: akpm@linux-foundation.org Cc: benh@kernel.crashing.org Cc: bhelgaas@google.com Cc: bp@suse.de Cc: dan.j.williams@intel.com Cc: daniel.vetter@ffwll.ch Cc: dhowells@redhat.com Cc: julia.lawall@lip6.fr Cc: konrad.wilk@oracle.com Cc: linux-fbdev@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: luto@amacapital.net Cc: mst@redhat.com Cc: tomi.valkeinen@ti.com Cc: toshi.kani@hp.com Cc: vinod.koul@intel.com Cc: xen-devel@lists.xensource.com Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-03drm/omap: move dss_mgr_* declarations to omapdrm/omapfbTomi Valkeinen
This patch continues the work to create private versions of the omapdss.h header for omapdrm and omapfb. This one moves the dss_mgr_* function declarations. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-03-03drm/omap: move struct dss_mgr_ops to omapdrm/omapfbTomi Valkeinen
This patch continues the work to create private versions of the omapdss.h header for omapdrm and omapfb. This one moves 'struct dss_mgr_ops'. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-03-03drm/omap, omapfb: move exported dispc function declarations to omapdrm/omapfbTomi Valkeinen
omapdrm and omapfb still share the same include/video/omapdss.h. We need to change that so that we can proceed with omapdrm work. However, it's not trivial to make separate omapfb and omapdrm versions of omapdss.h, as that file is also included in other places like arch code, audio code and omap_vout code. So we'll do it piece by piece. This patch makes private versions of all the dispc function declarations that are in omapdss.h. For omapdrm we create a new file, drivers/gpu/drm/omapdrm/dss/omapdss.h, which will contain headers meant to be visible outside omapdss. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>