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path: root/drivers/video
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2020-03-02video: fbdev: radeonfb: remove set but not used variable 'vSyncPol'yu kuai
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1653:38: warning: variable ‘vSyncPol’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by: yu kuai <yukuai3@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: zhengbin <zhengbin13@huawei.com> Cc: yi.zhang <yi.zhang@huawei.com> [b.zolnierkie: minor patch summary fixup] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200119121730.10701-3-yukuai3@huawei.com
2020-03-02video: fbdev: radeonfb: remove set but not used variable 'hSyncPol'yu kuai
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1653:6: warning: variable ‘hSyncPol’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by: yu kuai <yukuai3@huawei.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: zhengbin <zhengbin13@huawei.com> Cc: yi.zhang <yi.zhang@huawei.com> [b.zolnierkie: minor patch summary fixup] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200119121730.10701-2-yukuai3@huawei.com
2020-03-02video: fbdev: wm8505fb: add COMPILE_TEST supportBartlomiej Zolnierkiewicz
Add COMPILE_TEST support to wm8505fb driver for better compile testing coverage. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/900c16b3-9306-7d17-f467-0f98bc95416a@samsung.com
2020-03-02video: fbdev: wm8505fb: fix sparse warnings about using incorrect typesBartlomiej Zolnierkiewicz
Use ->screen_buffer instead of ->screen_base to fix sparse warnings. [ Please see commit 17a7b0b4d974 ("fb.h: Provide alternate screen_base pointer") for details. ] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/567cba81-5fec-4d91-f711-c0bdbfe5b513@samsung.com
2020-03-02video: fbdev: w100fb: add COMPILE_TEST supportBartlomiej Zolnierkiewicz
Add COMPILE_TEST support to w100fb driver for better compile testing coverage. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/a929db5e-d373-7b09-ae2b-efec227f7e85@samsung.com
2020-03-02video: fbdev: w100fb: fix sparse warningsBartlomiej Zolnierkiewicz
* Add missing __iomem annotations where needed. * Make w100fb_probe() static. * Return NULL pointer (instead of using plain integer) in w100_get_xtal_tabl(). Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/d438108a-e569-a14a-a9b1-3fefd88fcadc@samsung.com
2020-03-02video: fbdev: arcfb: add COMPILE_TEST supportBartlomiej Zolnierkiewicz
Add COMPILE_TEST support to arcfb driver for better compile testing coverage. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/acf2cc2e-614d-f0fb-ce40-cee62bfcde4c@samsung.com
2020-03-02video: fbdev: sh_mobile_lcdcfb: add COMPILE_TEST supportBartlomiej Zolnierkiewicz
Add COMPILE_TEST support to sh_mobile_lcdcfb driver for better compile testing coverage. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patchwork.freedesktop.org/patch/msgid/d98fea18-b72e-6d0f-33ac-1421738bd12b@samsung.com
2020-03-02video: fbdev: sh_mobile_lcdcfb: fix sparse warnings about using incorrect typesBartlomiej Zolnierkiewicz
Use ->screen_buffer instead of ->screen_base to fix sparse warnings. [ Please see commit 17a7b0b4d974 ("fb.h: Provide alternate screen_base pointer") for details. ] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patchwork.freedesktop.org/patch/msgid/c687dbc5-cf5a-9508-2a61-e757a1a14568@samsung.com
2020-03-02video: fbdev: pxa168fb: remove unnecessary platform_get_irqYueHaibing
commit 640ba2444fa9 ("drivers/video/pxa168fb.c: use devm_ functions") left behind this, it can be removed. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200117032241.59148-1-yuehaibing@huawei.com
2020-02-26video: hdmi: Change return type of hdmi_avi_infoframe_init() to voidLaurent Pinchart
The hdmi_avi_infoframe_init() never needs to return an error, change its return type to void. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-2-laurent.pinchart@ideasonboard.com
2020-02-19backlight: add led-backlight driverTomi Valkeinen
This patch adds a led-backlight driver (led_bl), which is similar to pwm_bl except the driver uses a LED class driver to adjust the brightness in the HW. Multiple LEDs can be used for a single backlight. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Guido Günther <agx@sigxcpu.org> Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-02-19fbdev/g364fb: Fix build failureFinn Thain
This patch resolves these compiler errors and warnings -- CC drivers/video/fbdev/g364fb.o drivers/video/fbdev/g364fb.c: In function 'g364fb_cursor': drivers/video/fbdev/g364fb.c:137:9: error: 'x' undeclared (first use in this function) drivers/video/fbdev/g364fb.c:137:9: note: each undeclared identifier is reported only once for each function it appears in drivers/video/fbdev/g364fb.c:137:7: error: implicit declaration of function 'fontwidth' [-Werror=implicit-function-declaration] drivers/video/fbdev/g364fb.c:137:23: error: 'p' undeclared (first use in this function) drivers/video/fbdev/g364fb.c:137:38: error: 'y' undeclared (first use in this function) drivers/video/fbdev/g364fb.c:137:7: error: implicit declaration of function 'fontheight' [-Werror=implicit-function-declaration] drivers/video/fbdev/g364fb.c: In function 'g364fb_init': drivers/video/fbdev/g364fb.c:233:24: error: 'fbvar' undeclared (first use in this function) drivers/video/fbdev/g364fb.c:234:24: error: 'xres' undeclared (first use in this function) drivers/video/fbdev/g364fb.c:201:14: warning: unused variable 'j' [-Wunused-variable] drivers/video/fbdev/g364fb.c:197:25: warning: unused variable 'pal_ptr' [-Wunused-variable] The MIPS Magnum framebuffer console now works when tested in QEMU. Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org
2020-02-17Merge v5.6-rc2 into drm-misc-nextMaxime Ripard
Lyude needs some patches in 5.6-rc2 and we didn't bring drm-misc-next forward yet, so it looks like a good occasion. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2020-02-09Merge tag 'kbuild-v5.6-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - fix randconfig to generate a sane .config - rename hostprogs-y / always to hostprogs / always-y, which are more natual syntax. - optimize scripts/kallsyms - fix yes2modconfig and mod2yesconfig - make multiple directory targets ('make foo/ bar/') work * tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: make multiple directory targets work kconfig: Invalidate all symbols after changing to y or m. kallsyms: fix type of kallsyms_token_table[] scripts/kallsyms: change table to store (strcut sym_entry *) scripts/kallsyms: rename local variables in read_symbol() kbuild: rename hostprogs-y/always to hostprogs/always-y kbuild: fix the document to use extra-y for vmlinux.lds kconfig: fix broken dependency in randconfig-generated .config
2020-02-04treewide: remove redundant IS_ERR() before error code checkMasahiro Yamada
'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p). Hence, IS_ERR(p) is unneeded. The semantic patch that generates this commit is as follows: // <smpl> @@ expression ptr; constant error_code; @@ -IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code) +PTR_ERR(ptr) == - error_code // </smpl> Link: http://lkml.kernel.org/r/20200106045833.1725-1-masahiroy@kernel.org Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Cc: Julia Lawall <julia.lawall@lip6.fr> Acked-by: Stephen Boyd <sboyd@kernel.org> [drivers/clk/clk.c] Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> [GPIO] Acked-by: Wolfram Sang <wsa@the-dreams.de> [drivers/i2c] Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [acpi/scan.c] Acked-by: Rob Herring <robh@kernel.org> Cc: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-04proc: convert everything to "struct proc_ops"Alexey Dobriyan
The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in seq_file.h. Conversion rule is: llseek => proc_lseek unlocked_ioctl => proc_ioctl xxx => proc_xxx delete ".owner = THIS_MODULE" line [akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c] [sfr@canb.auug.org.au: fix kernel/sched/psi.c] Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-04kbuild: rename hostprogs-y/always to hostprogs/always-yMasahiro Yamada
In old days, the "host-progs" syntax was used for specifying host programs. It was renamed to the current "hostprogs-y" in 2004. It is typically useful in scripts/Makefile because it allows Kbuild to selectively compile host programs based on the kernel configuration. This commit renames like follows: always -> always-y hostprogs-y -> hostprogs So, scripts/Makefile will look like this: always-$(CONFIG_BUILD_BIN2C) += ... always-$(CONFIG_KALLSYMS) += ... ... hostprogs := $(always-y) $(always-m) I think this makes more sense because a host program is always a host program, irrespective of the kernel configuration. We want to specify which ones to compile by CONFIG options, so always-y will be handier. The "always", "hostprogs-y", "hostprogs-m" will be kept for backward compatibility for a while. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-02-03Merge tag 'backlight-next-5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Fix-ups: - Remove superfluous code in ams369fg06 - Convert over to GPIO descriptor (gpiod) in bd6107 Bug Fixes: - Fix unsigned comparison to less than zero in qcom-wled" * tag 'backlight-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: qcom-wled: Fix unsigned comparison to zero backlight: bd6107: Convert to use GPIO descriptor backlight: ams369fg06: Drop GPIO include
2020-02-03Merge tag 'hyperv-next-signed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull Hyper-V updates from Sasha Levin: - Most of the commits here are work to enable host-initiated hibernation support by Dexuan Cui. - Fix for a warning shown when host sends non-aligned balloon requests by Tianyu Lan. * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv_utils: Add the support of hibernation hv_utils: Support host-initiated hibernation request hv_utils: Support host-initiated restart request Tools: hv: Reopen the devices if read() or write() returns errors video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs. Drivers: hv: vmbus: Ignore CHANNELMSG_TL_CONNECT_RESULT(23) video: hyperv_fb: Fix hibernation for the deferred IO feature Input: hyperv-keyboard: Add the support of hibernation hv_balloon: Balloon up according to request page number
2020-01-30Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm updates from Davbe Airlie: "This is the main pull request for graphics for 5.6. Usual selection of changes all over. I've got one outstanding vmwgfx pull that touches mm so kept it separate until after all of this lands. I'll try and get it to you soon after this, but it might be early next week (nothing wrong with code, just my schedule is messy) This also hits a lot of fbdev drivers with some cleanups. Other notables: - vulkan timeline semaphore support added to syncobjs - nouveau turing secureboot/graphics support - Displayport MST display stream compression support Detailed summary: uapi: - dma-buf heaps added (and fixed) - command line add support for panel oreientation - command line allow overriding penguin count drm: - mipi dsi definition updates - lockdep annotations for dma_resv - remove dma-buf kmap/kunmap support - constify fb_ops in all fbdev drivers - MST fix for daisy chained hotplug- - CTA-861-G modes with VIC >= 193 added - fix drm_panel_of_backlight export - LVDS decoder support - more device based logging support - scanline alighment for dumb buffers - MST DSC helpers scheduler: - documentation fixes - job distribution improvements panel: - Logic PD type 28 panel support - Jimax8729d MIPI-DSI - igenic JZ4770 - generic DSI devicetree bindings - sony acx424AKP panel - Leadtek LTK500HD1829 - xinpeng XPP055C272 - AUO B116XAK01 - GiantPlus GPM940B0 - BOE NV140FHM-N49 - Satoz SAT050AT40H12R2 - Sharp LS020B1DD01D panels. ttm: - use blocking WW lock i915: - hw/uapi state separation - Lock annotation improvements - selftest improvements - ICL/TGL DSI VDSC support - VBT parsing improvments - Display refactoring - DSI updates + fixes - HDCP 2.2 for CFL - CML PCI ID fixes - GLK+ fbc fix - PSR fixes - GEN/GT refactor improvments - DP MST fixes - switch context id alloc to xarray - workaround updates - LMEM debugfs support - tiled monitor fixes - ICL+ clock gating programming removed - DP MST disable sequence fixed - LMEM discontiguous object maps - prefaulting for discontiguous objects - use LMEM for dumb buffers if possible - add LMEM mmap support amdgpu: - enable sync object timelines for vulkan - MST atomic routines - enable MST DSC support - add DMCUB display microengine support - DC OEM i2c support - Renoir DC fixes - Initial HDCP 2.x support - BACO support for Arcturus - Use BACO for runtime PM power save - gfxoff on navi10 - gfx10 golden updates and fixes - DCN support on POWER - GFXOFF for raven1 refresh - MM engine idle handlers cleanup - 10bpc EDP panel fixes - renoir watermark fixes - SR-IOV fixes - Arcturus VCN fixes - GDDR6 training fixes - freesync fixes - Pollock support amdkfd: - unify more codepath with amdgpu - use KIQ to setup HIQ rather than MMIO radeon: - fix vma fault handler race - PPC DMA fix - register check fixes for r100/r200 nouveau: - mmap_sem vs dma_resv fix - rewrite the ACR secure boot code for Turing - TU10x graphics engine support (TU11x pending) - Page kind mapping for turing - 10-bit LUT support - GP10B Tegra fixes - HD audio regression fix hisilicon/hibmc: - use generic fbdev code and helpers rockchip: - dsi/px30 support virtio: - fb damage support - static some functions vc4: - use dma_resv lock wrappers msm: - use dma_resv lock wrappers - sc7180 display + DSI support - a618 support - UBWC support improvements vmwgfx: - updates + new logging uapi exynos: - enable/disable callback cleanups etnaviv: - use dma_resv lock wrappers atmel-hlcdc: - clock fixes mediatek: - cmdq support - non-smooth cursor fixes - ctm property support sun4i: - suspend support - A64 mipi dsi support rcar-du: - Color management module support - LVDS encoder dual-link support - R8A77980 support analogic: - add support for an6345 ast: - atomic modeset support - primary plane garbage fix arcgpu: - fixes for fourcc handling tegra: - minor fixes and improvments mcde: - vblank support meson: - OSD1 plane AFBC commit gma500: - add pageflip support - reomve global drm_dev komeda: - tweak debugfs output - d32 support - runtime PM suppotr udl: - use generic shmem helpers - cleanup and fixes" * tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits) drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing drm/nouveau/acr: return error when registering LSF if ACR not supported drm/nouveau/disp/gv100-: not all channel types support reporting error codes drm/nouveau/disp/nv50-: prevent oops when no channel method map provided drm/nouveau: support synchronous pushbuf submission drm/nouveau: signal pending fences when channel has been killed drm/nouveau: reject attempts to submit to dead channels drm/nouveau: zero vma pointer even if we only unreference it rather than free drm/nouveau: Add HD-audio component notifier support drm/nouveau: fix build error without CONFIG_IOMMU_API drm/nouveau/kms/nv04: remove set but not used variable 'width' drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector' drm/nouveau/mmu: fix comptag memory leak drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping drm/exynos: Rename Exynos to lowercase drm/exynos: change callback names drm/mst: Don't do atomic checks over disabled managers drm/amdgpu: add the lost mutex_init back drm/amd/display: skip opp blank or unblank if test pattern enabled ...
2020-01-29Merge tag 'tty-5.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here are the big set of tty and serial driver updates for 5.6-rc1 Included in here are: - dummy_con cleanups (touches lots of arch code) - sysrq logic cleanups (touches lots of serial drivers) - samsung driver fixes (wasn't really being built) - conmakeshash move to tty subdir out of scripts - lots of small tty/serial driver updates All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits) tty: n_hdlc: Use flexible-array member and struct_size() helper tty: baudrate: SPARC supports few more baud rates tty: baudrate: Synchronise baud_table[] and baud_bits[] tty: serial: meson_uart: Add support for kernel debugger serial: imx: fix a race condition in receive path serial: 8250_bcm2835aux: Document struct bcm2835aux_data serial: 8250_bcm2835aux: Use generic remapping code serial: 8250_bcm2835aux: Allocate uart_8250_port on stack serial: 8250_bcm2835aux: Suppress register_port error on -EPROBE_DEFER serial: 8250_bcm2835aux: Suppress clk_get error on -EPROBE_DEFER serial: 8250_bcm2835aux: Fix line mismatch on driver unbind serial_core: Remove unused member in uart_port vt: Correct comment documenting do_take_over_console() vt: Delete comment referencing non-existent unbind_con_driver() arch/xtensa/setup: Drop dummy_con initialization arch/x86/setup: Drop dummy_con initialization arch/unicore32/setup: Drop dummy_con initialization arch/sparc/setup: Drop dummy_con initialization arch/sh/setup: Drop dummy_con initialization arch/s390/setup: Drop dummy_con initialization ...
2020-01-26video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs.Wei Hu
On Hyper-V, Generation 1 VMs can directly use VM's physical memory for their framebuffers. This can improve the efficiency of framebuffer and overall performence for VM. The physical memory assigned to framebuffer must be contiguous. We use CMA allocator to get contiguouse physicial memory when the framebuffer size is greater than 4MB. For size under 4MB, we use alloc_pages to achieve this. To enable framebuffer memory allocation from CMA, supply a kernel parameter to give enough space to CMA allocator at boot time. For example: cma=130m This gives 130MB memory to CAM allocator that can be allocated to framebuffer. If this fails, we fall back to the old way of using mmio for framebuffer. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Wei Hu <weh@microsoft.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-25video: hyperv_fb: Fix hibernation for the deferred IO featureDexuan Cui
fb_deferred_io_work() can access the vmbus ringbuffer by calling fbdefio->deferred_io() -> synthvid_deferred_io() -> synthvid_update(). Because the vmbus ringbuffer is inaccessible between hvfb_suspend() and hvfb_resume(), we must cancel info->deferred_work before calling vmbus_close() and then reschedule it after we reopen the channel in hvfb_resume(). Fixes: a4ddb11d297e ("video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver") Fixes: 824946a8b6fb ("video: hyperv_fb: Add the support of hibernation") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Wei Hu <weh@microsoft.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-23backlight: qcom-wled: Fix unsigned comparison to zeroChen Zhou
Fixes coccicheck warning: ./drivers/video/backlight/qcom-wled.c:1104:5-15: WARNING: Unsigned expression compared with zero: string_len > 0 The unsigned variable string_len is assigned a return value from the call to of_property_count_elems_of_size(), which may return negative error code. Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3") Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Kiran Gunda <kgunda@codeaurora.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-15video: fbdev: nvidia: clean up indentation issues and comment blockColin Ian King
There is a hunk of code that is incorrectly indented, clean up the indentation and a comment block. Also remove block braces around a one line statement on an if condition and add missing spaces after if keywords. Signed-off-by: Colin Ian King <colin.king@canonical.com> Cc: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200113144627.219967-1-colin.king@canonical.com
2020-01-15fbdev: remove object duplication in MakefileMasahiro Yamada
The objects in $(fb-objs) $(fb-y) $(fb-m) are linked to fb.ko . This line adds $(fb-y) to fb-objs, so the objects from $(fb-y) are listed twice as the dependency of the module. It works because Kbuild trims the duplicated objects from linking, but there is no good reason to have this line. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200106081352.27730-1-masahiroy@kernel.org
2020-01-15fbdev: cg14fb: use resource_sizeJulia Lawall
Use resource_size rather than a verbose computation on the end and start fields. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ struct resource ptr; @@ - (ptr.end - ptr.start + 1) + resource_size(&ptr) </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> [b.zolnierkie: minor patch summary fixup] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1577900990-8588-8-git-send-email-Julia.Lawall@inria.fr
2020-01-15fbdev: s1d13xxxfb: use resource_sizeJulia Lawall
Use resource_size rather than a verbose computation on the end and start fields. The semantic patch that makes these changes is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ struct resource ptr; @@ - (ptr.end - ptr.start + 1) + resource_size(&ptr) </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com> [b.zolnierkie: ported patch to drm-misc-next] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1577900990-8588-4-git-send-email-Julia.Lawall@inria.fr
2020-01-15video: sa1100fb: constify copied structureJulia Lawall
The monspecs structure is only copied into another structure, so make it const. The opportunity for this change was found using Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1577864614-5543-8-git-send-email-Julia.Lawall@inria.fr
2020-01-15fbmem: Adjust indentation in fb_prepare_logo and fb_blankNathan Chancellor
Clang warns: ../drivers/video/fbdev/core/fbmem.c:665:3: warning: misleading indentation; statement is not part of the previous 'else' [-Wmisleading-indentation] if (fb_logo.depth > 4 && depth > 4) { ^ ../drivers/video/fbdev/core/fbmem.c:661:2: note: previous statement is here else ^ ../drivers/video/fbdev/core/fbmem.c:1075:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] return ret; ^ ../drivers/video/fbdev/core/fbmem.c:1072:2: note: previous statement is here if (!ret) ^ 2 warnings generated. This warning occurs because there are spaces before the tabs on these lines. Normalize the indentation in these functions so that it is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 1692b37c99d5 ("fbdev: Fix logo if logo depth is less than framebuffer depth") Link: https://github.com/ClangBuiltLinux/linux/issues/825 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218030025.10064-1-natechancellor@gmail.com
2020-01-15fbcon: Adjust indentation in set_con2fb_mapNathan Chancellor
Clang warns: ../drivers/video/fbdev/core/fbcon.c:915:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] return err; ^ ../drivers/video/fbdev/core/fbcon.c:912:2: note: previous statement is here if (!search_fb_in_map(info_idx)) ^ 1 warning generated. This warning occurs because there is a space before the tab on this line. This happens on several lines in this function; normalize them so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. This warning was introduced before the beginning of git history so no fixes tab. Link: https://github.com/ClangBuiltLinux/linux/issues/824 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218025337.35044-1-natechancellor@gmail.com
2020-01-15pxa168fb: fix release function mismatch in probe failureChuhong Yuan
The driver uses kfree() to release the resource allocated by framebuffer_alloc(), which does not match. Use framebuffer_release() instead to fix it. Fixes: 638772c7553f ("fb: add support of LCD display controller on pxa168/910 (base layer)") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191205160613.32075-1-hslester96@gmail.com
2020-01-15OMAP: DSS2: remove non-zero check on variable rColin Ian King
Variable r is being initialized to zero, so the check of a non-zero rv is redundant and can be removed. It appears that the previous case statements set r to be -EINVAL and the "Fallthrough" comment afterwards suggested it was going to fall through to this non-zero check but won't because of the break statement. Remove the confusion by removing the Fallthrough comment too. Addresses-Coverity: ("Logically dead code") Fixes: b39a982ddecf ("OMAP: DSS2: omapfb driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191204152847.1435188-1-colin.king@canonical.com
2020-01-15video: Fix Kconfig indentationKrzysztof Kozlowski
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Cc: Jiri Kosina <trivial@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191120133838.13132-1-krzk@kernel.org
2020-01-15video: ssd1307fb: add the missed regulator_disableChuhong Yuan
The driver forgets to disable the regulator in remove like what is done in probe failure. Add the missed call to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Tested-by: Michal Vokáč <michal.vokac@ysoft.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191118114150.25724-1-hslester96@gmail.com
2020-01-15video: hyperv_fb: fix indentation issueColin Ian King
There is a block of statements that are indented too deeply, remove the extraneous tabs. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Cc: "K . Y . Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Sasha Levin <sashal@kernel.org> [b.zolnierkie: minor patch summary fixup] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191114172720.322023-1-colin.king@canonical.com
2020-01-15fbdev: potential information leak in do_fb_ioctl()Dan Carpenter
The "fix" struct has a 2 byte hole after ->ywrapstep and the "fix = info->fix;" assignment doesn't necessarily clear it. It depends on the compiler. The solution is just to replace the assignment with an memcpy(). Fixes: 1f5e31d7e55a ("fbmem: don't call copy_from/to_user() with mutex held") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andrea Righi <righi.andrea@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Peter Rosin <peda@axentia.se> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200113100132.ixpaymordi24n3av@kili.mountain
2020-01-14console/dummycon: Remove bogus depends on from DUMMY_CONSOLEArvind Sankar
Since commit [1] consolidated console configuration in drivers/video/console, DUMMY_CONSOLE has always been enabled, since the dependency is always satisfied. There is no point in trying to allow it to be configured out, since (a) it's tiny, and (b) if VT_CONSOLE is enabled, we must have a working console driver by the time con_init(vt.c) runs, and only dummycon is guaranteed to work (vgacon may be configured in, but that doesn't mean we have a VGA device). So just remove the fake dependency. [1] https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit?id=31d2a7d36d6989c714b792ec00358ada24c039e7 Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20191218214506.49252-2-nivedita@alum.mit.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-08video: fbdev: mmp: fix platform_get_irq.cocci warningskbuild test robot
Remove dev_err() messages after platform_get_irq*() failures. Line 450 is redundant because platform_get_irq() already prints an error. Generated by: scripts/coccinelle/api/platform_get_irq.cocci Fixes: dd90e9ae55a1 ("video: fbdev: mmp: add COMPILE_TEST support") Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/alpine.DEB.2.21.2001042140310.6944@hadrien
2020-01-06Merge drm/drm-next into drm-misc-nextMaarten Lankhorst
Requested, and we need v5.5-rc1 backported as our current branch is still based on v5.4. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-03omapfb/dss: remove unneeded conversions to boolAndrew F. Davis
Found with scripts/coccinelle/misc/boolconv.cocci. Signed-off-by: Andrew F. Davis <afd@ti.com> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191016180424.23907-1-afd@ti.com
2020-01-03video: pxafb: Use devm_platform_ioremap_resource() in pxafb_probe()Markus Elfring
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Cc: Daniel Mack <daniel@zonque.org> Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: YueHaibing <yuehaibing@huawei.com> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/a1b804b1-43c2-327a-d6d1-df49aebec680@web.de
2020-01-03video: ocfb: Use devm_platform_ioremap_resource() in ocfb_probe()Markus Elfring
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/61b75aa6-ff92-e0ed-53f2-50a95d93d1f6@web.de
2020-01-03video: fbdev: fsl-diu-fb: mark expected switch fall-throughsGustavo A. R. Silva
Mark switch cases where we are expecting to fall through. Fix the following warnings (Building: mpc512x_defconfig powerpc): drivers/video/fbdev/fsl-diu-fb.c: In function ‘fsl_diu_ioctl’: ./include/linux/device.h:1750:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro ‘dev_warn’ dev_warn(info->dev, ^~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1290:2: note: here case MFB_SET_PIXFMT: ^~~~ In file included from ./include/linux/acpi.h:15:0, from ./include/linux/i2c.h:13, from ./include/uapi/linux/fb.h:6, from ./include/linux/fb.h:6, from drivers/video/fbdev/fsl-diu-fb.c:20: ./include/linux/device.h:1750:2: warning: this statement may fall through [-Wimplicit-fallthrough=] _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro ‘dev_warn’ dev_warn(info->dev, ^~~~~~~~ drivers/video/fbdev/fsl-diu-fb.c:1299:2: note: here case MFB_GET_PIXFMT: ^~~~ Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Cc: Timur Tabi <timur@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190911113604.GA31512@embeddedor
2020-01-03fbdev: matrox: make array wtst_xlat static const, makes object smallerColin Ian King
Don't populate the array wtst_xlat on the stack but instead make it static const. Makes the object code smaller by 89 bytes. Before: text data bss dec hex filename 14347 840 0 15187 3b53 fbdev/matrox/matroxfb_misc.o After: text data bss dec hex filename 14162 936 0 15098 3afa fbdev/matrox/matroxfb_misc.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <colin.king@canonical.com> [b.zolnierkie: use u8 while at it (suggested by Ville Syrjälä)] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190906181114.31414-1-colin.king@canonical.com
2020-01-03fbdev/sa1100fb: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190904115754.21612-1-yuehaibing@huawei.com
2020-01-03fbdev: s3c-fb: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190904115523.25068-1-yuehaibing@huawei.com
2020-01-03fbdev: omapfb: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Allison Randal <allison@lohutok.net> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190904115406.23880-1-yuehaibing@huawei.com
generated by cgit (git 2.34.1) at 2025-09-15 00:40:56 +0000