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path: root/drivers/video/fbdev/s3c-fb.c
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2020-12-05video: fbdev: s3c-fb: Fix kernel-doc and set but not used warningsSam Ravnborg
Fix several W=1 warnings - Updated kernel-doc as needed - Deleted unused local variable, it was assigned but never used v2: - Updated subject (Lee) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: linux-fbdev@vger.kernel.org Cc: Lee Jones <lee.jones@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201128224114.1033617-25-sam@ravnborg.org
2020-08-03fbdev: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200707210539.GA12530@embeddedor
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
2019-12-05video: constify fb ops across all driversJani Nikula
Now that the fbops member of struct fb_info is const, we can start making the ops const as well. This does not cover all drivers; some actually modify the fbops struct, for example to adjust for different configurations, and others do more involved things that I'd rather not touch in practically obsolete drivers. Mostly this is the low hanging fruit where we can add "const" and be done with it. v3: - un-constify atyfb, mb862xx, nvidia and uvesabf (0day) v2: - fix typo (Christophe de Dinechin) - use "static const" instead of "const static" in mx3fb.c - also constify smscufx.c Cc: linux-fbdev@vger.kernel.org Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ce67f14435f3af498f2e8bf35ce4be11f7504132.1575390740.git.jani.nikula@intel.com
2019-07-09Merge tag 'fbdev-v5.3' of git://github.com/bzolnier/linuxLinus Torvalds
Pull fbdev updates from Bartlomiej Zolnierkiewicz: - remove fbdev notifier usage for fbcon (as prep work to clean up the fbcon locking), add locking checks in vt/console code and make assorted cleanups in fbdev and backlight code (Daniel Vetter) - add COMPILE_TEST support to atmel_lcdfb, da8xx-fb, gbefb, imxfb, pvr2fb and pxa168fb drivers (me) - fix DMA API abuse in au1200fb and jz4740_fb drivers (Christoph Hellwig) - add check for new BGRT status field rotation bits in efifb driver (Hans de Goede) - mark expected switch fall-throughs in s3c-fb driver (Gustavo A. R. Silva) - remove fbdev mxsfb driver in favour of the drm version (Fabio Estevam) - remove broken rfbi code from omap2fb driver (me) - misc fixes (Arnd Bergmann, Shobhit Kukreti, Wei Yongjun, me) - misc cleanups (Gustavo A. R. Silva, Colin Ian King, me) * tag 'fbdev-v5.3' of git://github.com/bzolnier/linux: (62 commits) video: fbdev: imxfb: fix a typo in imxfb_probe() video: fbdev: s3c-fb: Mark expected switch fall-throughs video: fbdev: s3c-fb: fix sparse warnings about using incorrect types video: fbdev: don't print error message on framebuffer_alloc() failure video: fbdev: intelfb: return -ENOMEM on framebuffer_alloc() failure video: fbdev: s3c-fb: return -ENOMEM on framebuffer_alloc() failure vga_switcheroo: Depend upon fbcon being built-in, if enabled video: fbdev: omap2: remove rfbi video: fbdev: atmel_lcdfb: remove redundant initialization to variable ret video: fbdev-MMP: Use struct_size() in devm_kzalloc() video: fbdev: controlfb: fix warnings about comparing pointer to 0 efifb: BGRT: Add check for new BGRT status field rotation bits jz4740_fb: fix DMA API abuse video: fbdev: pvr2fb: fix link error for pvr2fb_pci_exit video: fbdev: s3c-fb: add COMPILE_TEST support video: fbdev: imxfb: fix sparse warnings about using incorrect types video: fbdev: pvr2fb: fix build warning when compiling as module fbcon: Export fbcon_update_vcs backlight: simplify lcd notifier staging/olpc_dcon: Add drm conversion to TODO ...
2019-07-05video: fbdev: s3c-fb: Mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warnings: drivers/video/fbdev/s3c-fb.c: In function ‘s3c_fb_blank’: drivers/video/fbdev/s3c-fb.c:811:16: warning: this statement may fall through [-Wimplicit-fallthrough=] sfb->enabled &= ~(1 << index); ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~ drivers/video/fbdev/s3c-fb.c:814:2: note: here case FB_BLANK_NORMAL: ^~~~ LD [M] drivers/staging/greybus/gb-light.o CC [M] drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gp10b.o drivers/video/fbdev/s3c-fb.c: In function ‘s3c_fb_check_var’: drivers/video/fbdev/s3c-fb.c:286:22: warning: this statement may fall through [-Wimplicit-fallthrough=] var->transp.length = 1; ~~~~~~~~~~~~~~~~~~~^~~ drivers/video/fbdev/s3c-fb.c:288:2: note: here case 18: ^~~~ drivers/video/fbdev/s3c-fb.c:314:22: warning: this statement may fall through [-Wimplicit-fallthrough=] var->transp.offset = 24; ~~~~~~~~~~~~~~~~~~~^~~~ drivers/video/fbdev/s3c-fb.c:316:2: note: here case 24: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comments are modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-28video: fbdev: s3c-fb: 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. ] Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-28video: fbdev: don't print error message on framebuffer_alloc() failureBartlomiej Zolnierkiewicz
framebuffer_alloc() can fail only on kzalloc() memory allocation failure and since kzalloc() will print error message in such case we can omit printing extra error message in drivers (which BTW is what the majority of framebuffer_alloc() users is doing already). Cc: "Bruno Prémont" <bonbons@linux-vserver.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-28video: fbdev: s3c-fb: return -ENOMEM on framebuffer_alloc() failureBartlomiej Zolnierkiewicz
Fix error code from -ENOENT to -ENOMEM. Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platformsBartlomiej Zolnierkiewicz
Exynos5, Exynos4 and S5PV210 platforms have been converted to use Device Tree and Exynos DRM driver long time ago. Remove dead platform code for these platforms and update Kconfig s3c-fb entry accordingly. Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-03-28video: s3c-fb: Improve a size determination in s3c_fb_probe()Markus Elfring
Replace the specification of a data structure by a pointer dereference as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-03-28video: s3c-fb: Delete an error message for a failed memory allocation in ↵Markus Elfring
s3c_fb_probe() Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.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>
2015-08-21video: fbdev: s3c-fb: Constify platform_device_idKrzysztof Kozlowski
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-12-18Merge tag 'pm+acpi-3.19-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI and power management updates from Rafael Wysocki: "These are regression fixes (leds-gpio, ACPI backlight driver, operating performance points library, ACPI device enumeration messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device PM), some cleanups in the operating performance points (OPP) framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of minor intel_pstate driver changes, a new MAINTAINERS entry for it and an ACPI fan driver change needed for better support of thermal management in user space. Specifics: - Fix a regression in leds-gpio introduced by a recent commit that inadvertently changed the name of one of the properties used by the driver (Fabio Estevam). - Fix a regression in the ACPI backlight driver introduced by a recent fix that missed one special case that had to be taken into account (Aaron Lu). - Drop the level of some new kernel messages from the ACPI core introduced by a recent commit to KERN_DEBUG which they should have used from the start and drop some other unuseful KERN_ERR messages printed by ACPI (Rafael J Wysocki). - Revert an incorrect commit modifying the cpupower tool (Prarit Bhargava). - Fix two regressions introduced by recent commits in the OPP library and clean up some existing minor issues in that code (Viresh Kumar). - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the tree (or drop it where that can be done) in order to make it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf Hansson, Ludovic Desroches). There will be one more "CONFIG_PM_RUNTIME removal" batch after this one, because some new uses of it have been introduced during the current merge window, but that should be sufficient to finally get rid of it. - Make the ACPI EC driver more robust against race conditions related to GPE handler installation failures (Lv Zheng). - Prevent the ACPI device PM core code from attempting to disable GPEs that it has not enabled which confuses ACPICA and makes it report errors unnecessarily (Rafael J Wysocki). - Add a "force" command line switch to the intel_pstate driver to make it possible to override the blacklisting of some systems in that driver if needed (Ethan Zhao). - Improve intel_pstate code documentation and add a MAINTAINERS entry for it (Kristen Carlson Accardi). - Make the ACPI fan driver create cooling device interfaces witn names that reflect the IDs of the ACPI device objects they are associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B"). That's necessary for user space thermal management tools to be able to connect the fans with the parts of the system they are supposed to be cooling properly. From Srinivas Pandruvada" * tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) MAINTAINERS: add entry for intel_pstate ACPI / video: update the skip case for acpi_video_device_in_dod() power / PM: Eliminate CONFIG_PM_RUNTIME NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM ACPI / EC: Fix unexpected ec_remove_handlers() invocations Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()" tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c PM: Remove the SET_PM_RUNTIME_PM_OPS() macro mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro PM / Kconfig: Replace PM_RUNTIME with PM in dependencies ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM ACPI / PM: Do not disable wakeup GPEs that have not been enabled ACPI / utils: Drop error messages from acpi_evaluate_reference() ...
2014-12-13video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. The alternative of CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME may be replaced with CONFIG_PM too. Make these changes in 2 files under drivers/video/. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Jingoo Han <jg1.han@samsung.com>
2014-10-20video: fbdev: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-07-13video: fbdev: s3c-fb: remove s5pc100 related fimd and fb codesKukjin Kim
This patch removes fimd and fb codes for s5pc100 SoC. Acked-by: Jingoo Han <jg1.han@samsung.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-13video: fbdev: s3c-fb: remove s5p64x0 related fimd codesKukjin Kim
This patch removes fimd codes for s5p6440 and s5p6450 SoCs. Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-17video: move fbdev to drivers/video/fbdevTomi Valkeinen
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>