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path: root/drivers/video/fbdev
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2014-07-13video: fbdev: s3c-fb: remove s5p64x0 related fimd codesKukjin Kim2-31/+1
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>
2014-07-10x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()Bruno Prémont1-39/+0
Commit b4aa0163056b ("efifb: Implement vga_default_device() (v2)") added efifb vga_default_device() so EFI systems that do not load shadow VBIOS or setup VGA get proper value for boot_vga PCI sysfs attribute on the corresponding PCI device. Xorg doesn't detect devices when boot_vga=0, e.g., on some EFI systems such as MacBookAir2,1. Xorg detects the GPU and finds the DRI device but then bails out with "no devices detected". Note: When vga_default_device() is set boot_vga PCI sysfs attribute reflects its state. When unset this attribute is 1 whenever IORESOURCE_ROM_SHADOW flag is set. With introduction of sysfb/simplefb/simpledrm efifb is getting obsolete while having native drivers for the GPU also makes selecting sysfb/efifb optional. Remove the efifb implementation of vga_default_device() and initialize vgaarb's vga_default_device() with the PCI GPU that matches boot screen_info in pci_fixup_video(). [bhelgaas: remove unused "dev" in efifb_setup()] Fixes: b4aa0163056b ("efifb: Implement vga_default_device() (v2)") Tested-by: Anibal Francisco Martinez Cortina <linuxkid.zeuz@gmail.com> Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Matthew Garrett <matthew.garrett@nebula.com> CC: stable@vger.kernel.org # v3.5+
2014-07-04OMAPDSS: HDMI: remove the unused codeTomi Valkeinen2-327/+0
We no longer need the horrible driver internal videmode tables, which were used to decide if a given videomode is a HDMI or DVI mode. So remove all related code. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI5: add support to set infoframe & HDMI modeTomi Valkeinen2-56/+33
Instead of using hardcoded AVI infoframe, and a custom HDMI/DVI mode selection based in internal videomode tables, add support to set the infoframe and HDMI/DVI mode. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI4: add support to set infoframe & HDMI modeTomi Valkeinen2-74/+41
Instead of using hardcoded AVI infoframe, and a custom HDMI/DVI mode selection based in internal videomode tables, add support to set the infoframe and HDMI/DVI mode. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI: add infoframe and hdmi_dvi_mode fieldsTomi Valkeinen1-0/+2
Add infoframe and hdmi_dvi_mode fields to 'struct hdmi_config' which will be used in the following patches for OMAP4 and OMAP5 HDMI. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: add hdmi ops to hdmi-connector and tpd12s015Tomi Valkeinen2-0/+39
Add pass-through functions for set_infoframe and set_hdmi_mode to hdmi-connector and tpd12s015 drivers. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI: remove custom avi infoframeTomi Valkeinen1-90/+0
We now use the common AVI infoframe support, so the OMAP specific AVI infoframe code can be removed. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI5: use common AVI infoframe supportTomi Valkeinen1-56/+64
Instead of using OMAP specific AVI infoframe structs, use the common one from include/linux/hdmi.h. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI4: use common AVI infoframe supportTomi Valkeinen3-110/+27
Instead of using OMAP specific AVI infoframe structs, use the common one from include/linux/hdmi.h. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: Kconfig: select HDMITomi Valkeinen1-0/+1
Select HDMI support to be able to use HDMI infoframe helpers. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: HDMI: fix name conflictTomi Valkeinen1-2/+2
OMAP HDMI driver has an 'enum hdmi_audio_sample_size', which conflicts with the common include/linux/hdmi.h. Change the name of the OMAP specific enum with '_omap" postfix. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: DISPC: clean up dispc_mgr_timings_okTomi Valkeinen1-8/+10
dispc_mgr_timings_ok() is a bit confusing how it handles the return value. Change the function to just return immediately when a timing is deemed not valid, making the code much easier to follow. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: DISPC: reject interlace for lcd outTomi Valkeinen1-0/+3
OMAP2/3 does not support interlace for LCD out. OMAP4+ does, but is not supported by the driver at the moment. The driver still accepts interlaced mode for LCD out, causing broken display output. This patch makes dispc reject interlace for LCD out. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04OMAPDSS: DISPC: fix debugfs reg dumpTomi Valkeinen1-3/+0
DISPC reg dump prints a few registers twice. Remove the extra prints. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04video: clps711x: Fix sparse warningsAlexander Shiyan1-1/+1
This patch fixes below warning: drivers/video/fbdev/clps711x-fb.c:314:17: warning: incorrect type in initializer (different address spaces) drivers/video/fbdev/clps711x-fb.c:314:17: expected void *__p drivers/video/fbdev/clps711x-fb.c:314:17: got char [noderef] <asn:2>*screen_base Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-04video: clps711x: Fix driver build for CONFIG_FB=mAlexander Shiyan1-1/+1
This patch fixes building CLPS711X FB driver if the framebuffer core is used as a module. LD init/built-in.o drivers/built-in.o: In function `clps711x_fb_remove': :(.text+0x44a8): undefined reference to `unregister_framebuffer' drivers/built-in.o: In function `clps711x_fb_probe': :(.text+0x44cc): undefined reference to `fb_get_options' :(.text+0x45d8): undefined reference to `fb_alloc_cmap' :(.text+0x45e4): undefined reference to `register_framebuffer' make: *** [vmlinux] Error 1 Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-01video: fbdev: s3c2410fb: Move to clk_prepare_enable/clk_disable_unprepareVasily Khoruzhick1-5/+5
Use clk_prepare_enable/clk_disable_unprepare to make the driver work properly with common clock framework. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-01drivers/video/fbdev/sis: Add missing elseRasmus Villemoes1-1/+1
The surrounding code and the fact that the previous two if's are rendered useless without this "else" (since SIS_340==55 and XGI_20==75 are greater than SIS_661==15) suggests that the "else" is indeed missing. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-01fbdev: da8xx-fb: Use dma_zalloc_coherentJoe Perches1-6/+3
Use the zeroing function instead of dma_alloc_coherent & memset(,0,) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-01video/mbx: indent some if statementsDan Carpenter1-2/+2
Checkpatch.pl worries that we have left off the conditional bit because it isn't indented correctly. WARNING: suspect code indent for conditional statements (24, 24) Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-07-01fb: adv7393: add missing semicolonScott Jiang1-1/+1
Commit f8bd493456c3da372ae81ed8f6b903f6207b9d98 by Jingoo Han introduced this problem. This makes bfin_adv7393fb.c failed to compile. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-27video: move Versatile CLCD helpersLinus Walleij3-0/+190
This moves the Versatile-specific helper code and panel database down into the drivers/video folder next to the CLCD driver itself, preserving the config symbol but also moving the header to platform data. This is necessary to rid the Integrator of this final <plat/*> inclusion dependency and get us one less user of the plat-versatile folder. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: linux-fbdev@vger.kernel.org Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-06-26video: omapdss: Fix potential null pointer dereferenceSachin Kamat1-3/+5
kmalloc can return null. Add a check to avoid potential null pointer dereference error when the pointer is accessed later. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-26video: vt8500lcdfb: Remove kfree call since devm_kzalloc() is usedEmil Goode1-2/+0
We use devm_kzalloc() to allocate memory for the struct vt8500lcd_info pointer fbi, so there is no need to free it in vt8500lcd_remove(). Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-26drivers/video/fbdev : dereference without an error testHimangi Saraogi1-0/+5
After a variable is assigned the result of backlight_device_register, an error test should be performed before a dereference. A simplified version of the semantic match that finds this problem is as follows: // <smpl> @def0@ expression x; position p0; @@ x@p0 = backlight_device_register(...) @protected@ expression def0.x,E; position def0.p0; position p; statement S; @@ x@p0 ... when != x = E if (!IS_ERR(x) && ...) {<... x@p ...>} else S @unprotected@ expression def0.x,E; identifier fld; position def0.p0; position p != protected.p; @@ x@p0 ... when != x = E * x@p->fld // </smpl> Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-24drivers/video/fbdev/sis/sis_main.c: remove unnecessary test on unsigned valueFabian Frederick1-4/+0
unsigned value is never < 0 Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-24video: 68328fb: remove check for CONFIG_FB_68328_INVERTPaul Bolle1-7/+1
Since v2.6.7 the 68328 frame buffer driver contains a check for CONFIG_FB_68328_INVERT. But the Kconfig symbol FB_68328_INVERT was never added to the tree. Remove this check and do some related cleaning up. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-24video: vt8500lcdfb: Remove kfree call since devm_kzalloc() is usedEmil Goode1-2/+0
We use devm_kzalloc() to allocate memory for the struct vt8500lcd_info pointer fbi, so there is no need to free it in vt8500lcd_remove(). Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-24video: msm: Introduce the use of the managed version of kzallocHimangi Saraogi1-16/+3
This patch moves data allocated using kzalloc to managed data allocated using devm_kzalloc and cleans now unnecessary kfrees in probe and remove functions. Also, linux/device.h is added to make sure the devm_*() routine declarations are unambiguously available. The function mddi_dummy_remove is removed as it is no longer required after removing the kfree. The variable ret is also done away with. The following Coccinelle semantic patch was used for making a part of the change: @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e, e1, e2; @@ probefn(struct platform_device *pdev, ...) { <+... - e = kzalloc(e1, e2) + e = devm_kzalloc(&pdev->dev, e1, e2) ... ?-kfree(e); ...+> } @rem depends on prb@ identifier platform.removefn; expression e; @@ removefn(...) { <... - kfree(e); ...> } Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-24video: clps711x: Add new Cirrus Logic CLPS711X framebuffer driverAlexander Shiyan3-6/+415
This adds support for the framebuffer available in the Cirrus Logic CLPS711X CPUs. FB features: - 1-2-4 bits per pixel. - Programmable panel size to a maximum of 1024x256 at 4 bps. - Relocatible Frame Buffer (SRAM or SDRAM). - Programmable refresh rates. - 16 gray scale values. This new driver is designed to usage with devicetree only. The driver have been tested with custom board equipped Cirrus Logic EP7312. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-23backlight: Remove trivial get_brightness implementationsAndrzej Hajda6-36/+0
Since backlight core returns props.brightness in case get_brightness is not implemented trivial implementations are not needed anymore. Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-23drivers:video:fbdev atmel_lcdfb.c power GPIO registration bugMichael Welling1-0/+2
A list that was intended for storing power control GPIOs was never initialized correctly or filled. Without these lines of added code the kernel hangs when trying to access an uninitialized list when a power control GPIO is registered with the device tree. Signed-off-by: Michael Welling <mwelling@ieee.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-06-16Revert "offb: Add palette hack for little endian"Benjamin Herrenschmidt1-10/+1
This reverts commit e1edf18b20076da83dd231dbd2146cbbc31c0b14. This patch was a misguided attempt at fixing offb for LE ppc64 kernels on BE qemu but is just wrong ... it breaks real LE/LE setups, LE with real HW, and existing mixed endian systems that did the fight thing with the appropriate device-tree property. Bad reviewing on my part, sorry. The right fix is to either make qemu change its endian when the guest changes endian (working on that) or to use the existing foreign endian support. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org> [v3.13+] ---
2014-06-11Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds1-1/+1
Pull module updates from Rusty Russell: "Most of this is cleaning up various driver sysfs permissions so we can re-add the perm check (we unified the module param and sysfs checks, but the module ones were stronger so we weakened them temporarily). Param parsing gets documented, and also "--" now forces args to be handed to init (and ignored by the kernel). Module NX/RO protections get tightened: we now set them before calling parse_args()" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: set nx before marking module MODULE_STATE_COMING. samples/kobject/: avoid world-writable sysfs files. drivers/hid/hid-picolcd_fb: avoid world-writable sysfs files. drivers/staging/speakup/: avoid world-writable sysfs files. drivers/regulator/virtual: avoid world-writable sysfs files. drivers/scsi/pm8001/pm8001_ctl.c: avoid world-writable sysfs files. drivers/hid/hid-lg4ff.c: avoid world-writable sysfs files. drivers/video/fbdev/sm501fb.c: avoid world-writable sysfs files. drivers/mtd/devices/docg3.c: avoid world-writable sysfs files. speakup: fix incorrect perms on speakup_acntsa.c cpumask.h: silence warning with -Wsign-compare Documentation: Update kernel-parameters.tx param: hand arguments after -- straight to init modpost: Fix resource leak in read_dump()
2014-06-04Merge tag 'fbdev-omap-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into nextLinus Torvalds29-507/+3304
Pull omap fbdev changes from Tomi Valkeinen: - DT support for the panel drivers that were still missing it - TI AM43xx support - TI OMAP5 support * tag 'fbdev-omap-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (46 commits) OMAPDSS: move 'compatible' converter to omapdss driver OMAPDSS: HDMI: fix devm_ioremap_resource error checks OMAPDSS: HDMI: remove unused defines OMAPDSS: HDMI: cleanup WP ioremaps OMAPDSS: panel NEC-NL8048HL11 DT support Doc/DT: Add DT binding documentation for TPO td043mtea1 panel OMAPDSS: Panel TPO-TD043MTEA1 DT support Doc/DT: Add DT binding documentation for SHARP LS037V7DW01 OMAPDSS: panel sharp-ls037v7dw01 DT support OMAPDSS: panel-sharp-ls037v7dw01: update to use gpiod Doc/DT: Add binding doc for lgphilips,lb035q02.txt OMAPDSS: panel-lgphilips-lb035q02: Add DT support OMAPDSS: panel-lgphilips-lb035q02: use gpiod for enable gpio OMAPDSS: hdmi5_core: Fix compilation with OMAP5_DSS_HDMI_AUDIO OMAPDSS: panel-dpi: enable-gpio OMAPDSS: Fix writes to DISPC_POL_FREQ Doc/DT: Add OMAP5 DSS DT bindings OMAPDSS: HDMI: cleanup ioremaps OMAPDSS: HDMI: Add OMAP5 HDMI support OMAPDSS: HDMI: PLL changes for OMAP5 ...
2014-06-04Merge tag 'fbdev-main-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into nextLinus Torvalds25-143/+161
Pull main fbdev changes from Tomi Valkeinen: "Mainly fixes and small improvements. The biggest change seems to be backlight control support for mx3fb" * tag 'fbdev-main-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (31 commits) drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmap video: fbdev: s3fb.c: Fix for possible null pointer dereference video: fbdev: grvga.c: Fix for possible null pointer dereference matroxfb: perform a dummy read of M_STATUS video: of: display_timing: fix default native-mode setting video: delete unneeded call to platform_get_drvdata video: mx3fb: Add backlight control support video: omap: delete support for early fbmem allocation video: of: display_timing: remove two unsafe error messages fbdev: fbmem: remove positive test on unsigned values fbcon: Fix memory leak in con2fb_release_oldinfo() video: Kconfig: Add a dependency to the Goldfish framebuffer driver video: exynos: Add a dependency to the menu video: mx3fb: Use devm_kzalloc video/nuc900: allow modular build video: atmel needs FB_BACKLIGHT video: export fb_prepare_logo video/mbx: fix building debugfs support video/omap: fix modular build video: clarify I2C dependencies ...
2014-05-28OMAPDSS: move 'compatible' converter to omapdss driverTomi Valkeinen4-1/+235
Move the panel/encoder driver compatible-string converter from arch/arm/mach-omap2/display.c to omapdss driver. That is a more logical place for it, as it's really an omapdss internal hack. The code is rewritten to follow the video node graph, starting from omapdss. This removes the need to have the device compatible-string database. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-26m68k/atari - atafb: convert allocation of fb ram to new interfaceMichael Schmitz1-23/+26
The new atari_stram_alloc interface returns kernel virtual addresses even if the kernel runs in FastRAM. These addresses are not guaranteed to be identical with the physical addresses. Since ST-RAM mappings have not been set up by mem_init, virt_to_phys() and its cousin do not work and the atari_stram_to_phys() etc. helpers must be used to determine physical addresses. fb.fix->smem_start needs physical addresses, fb.par->screen_base needs virtual addresses. Take care of the virt-to-phys conversion both on fb init and par changes. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-05-23OMAPDSS: HDMI: fix devm_ioremap_resource error checksTomi Valkeinen5-10/+10
devm_ioremap_resource returns ERR_PTR on error, not NULL. Fix the error checks in the driver. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23OMAPDSS: HDMI: remove unused definesTomi Valkeinen4-11/+0
Remove some unused defines from the HDMI driver. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23OMAPDSS: HDMI: cleanup WP ioremapsTomi Valkeinen1-18/+3
Commit 59b3d38a3691396783df108e6afbba30656edccb missed cleaning up the hdmi_wp.c file. Clean up hdmi_wp.c the same way as the others. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmapZhichuang SUN1-0/+2
Function unifb_mmap calls functions which are defined in linux/mm.h and asm/pgtable.h The related error (for unicore32 with unicore32_defconfig): CC drivers/video/fbdev/fb-puv3.o drivers/video/fbdev/fb-puv3.c: In function 'unifb_mmap': drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of function 'vm_iomap_memory' drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of function 'pgprot_noncached' Signed-off-by: Zhichuang Sun <sunzc522@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Joe Perches <joe@perches.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: linux-fbdev@vger.kernel.org Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23video: fbdev: s3fb.c: Fix for possible null pointer dereferenceRickard Strandqvist1-1/+2
There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23video: fbdev: grvga.c: Fix for possible null pointer dereferenceRickard Strandqvist1-1/+2
There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-23matroxfb: perform a dummy read of M_STATUSMikulas Patocka1-1/+1
I had occasional screen corruption with the matrox framebuffer driver and I found out that the reason for the corruption is that the hardware blitter accesses the videoram while it is being written to. The matrox driver has a macro WaitTillIdle() that should wait until the blitter is idle, but it sometimes doesn't work. I added a dummy read mga_inl(M_STATUS) to WaitTillIdle() to fix the problem. The dummy read will flush the write buffer in the PCI chipset, and the next read of M_STATUS will return the hardware status. Since applying this patch, I had no screen corruption at all. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-20OMAPDSS: panel NEC-NL8048HL11 DT supportTomi Valkeinen1-1/+44
We don't have any working boards using this panel right now, and the panel driver looks odd compared to the panel specs. For example, the panel spec does not mention any QVGA pin. So, while this patch adds DT support to the driver, it's not really supported and there are not bindings documentation for the panel until someone can verify how the panel actually works. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Erik Gilling <konkers@android.com>
2014-05-20OMAPDSS: Panel TPO-TD043MTEA1 DT supportTomi Valkeinen1-1/+41
Add DT support for panel TPO-TD043MTEA1. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Grazvydas Ignotas <notasas@gmail.com>
2014-05-20OMAPDSS: panel sharp-ls037v7dw01 DT supportTony Lindgren1-3/+99
Add DT support for sharp-ls037v7dw01. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-20OMAPDSS: panel-sharp-ls037v7dw01: update to use gpiodTony Lindgren1-54/+54
Using gpiod will make it easier to add device tree support for this panel in the following patches. Note that all the GPIOs for this panel are optional, any of the the GPIOs could be configured with external pulls instead of GPIOs, so let's not error out if GPIOs are not found to make the panel more generic. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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