- 29 Dec, 2015 20 commits
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Luis de Bethencourt authored
Boolean tests do not need explicit comparison to true or false. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Dan Carpenter authored
DSI_IRQ_SYNC_LOST was ORed twice so we can remove one. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
All the output drivers check for 'out' being NULL, but it can never be NULL. Remove the check. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Tomi Valkeinen authored
A bunch of dispc functions are only used inside dispc, so we can make them static. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Tomi Valkeinen authored
dss_feat_get_supported_displays() and dss_feat_get_supported_outputs() are not used outside omapdss, but are exported. We can thus remove the export and move the declarations to the omapdss internal header. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Tomi Valkeinen authored
The functions dispc_ovl_set_fifo_threshold and dispc_ovl_compute_fifo_thresholds are exported, but not declared in public headers, and thus are not used outside omapdss. So we can remove the EXPORT_SYMBOL()s. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Tomi Valkeinen authored
dispc_wb_setup() handles configuration only for mem-to-mem case. This patch adds the necessary configuration to handle also display capture mode. We need to set CAPTUREMODE to 0 (continuous capture), and WBDELAYCOUNT according to the vertical timings of the display, so that the WB FIFO has time to flush before the next frame starts. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
In mem-to-mem mode WB CAPTUREMODE needs to be set to 1 (capture one frame). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
The color conversion coefficients for RGB to YUV conversion (used with writeback) don't result in the correct result. This patch sets the correct coefficients. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
When doing mem-to-mem writeback, there's no pixelclock. However, the code that calculates scaling factors check that there is a pixel clock. We can just skip the check when doing mem-to-mem writeback. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Mflag thresholds for all pipelines are set in dispc_init_mflag(), but we are missing that for WB pipeline. Add WB configuration. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Fifo thresholds for all pipelines are set in dispc_init_fifos(), but we are missing it for WB pipeline. Add that. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Burst size for all pipelines is set in dispc_configure_burst_sizes(), but we are missing WB pipe. So add that. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Add handling of OMAP_DSS_CHANNEL_WB to dispc_ovl_set_channel_out() and dispc_ovl_get_channel_out(). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Refactor dispc_ovl_get_channel_out() to a bit cleaner form, which makes it easier to add support for writeback in the following patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
'enum omap_channel' is missing the channel for writeback. Add that. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
At the moment we have a function to get the number of writeback pipelines supported. However, the function is used in a wrong way, causing a wrong pipeline to get configured when trying to use WB. Also, we only have a single writeback pipeline on any of the DSS versions. To fix and simplify this, create a 'has_writeback' flag into the dispc driver, and after checking the flag, use OMAP_DSS_WB pipeline explicitly when calling the configuration functions. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
OMAP5+ DSS has a writeback pipeline, but this was not specified in the features list for OMAP5 DSS. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
Add dumping of the writeback registers to the register dump function. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Tomi Valkeinen authored
DISPC_MFLAG_THRESHOLD_OFFSET() is missing the offset for WB. Add the offset. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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- 17 Dec, 2015 2 commits
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Tomi Valkeinen authored
By default DISPC asserts hsync and vsync sequentially, i.e. there's first hsync and that is immediately followed by vsync. This is the only available behaviour on OMAP2/3, and default behaviour on OMAP4+. OMAP4+ has ALIGN bit in POL_FREQ register, which makes DISPC assert both syncs at the same time. It has been observed that some panels don't like sequential syncs (AM5 EVM's panel). After studying the datasheets for multiple panels and encoders, and MIPI DPI spec, it looks like there is no standard way to handle this. Sometimes the datasheets don't mention the required syncs behaviour at all, sometimes the datasheets have images that hint towards simultaneous syncs, and sometimes it is explicitly mentioned that simultaneous syncs are needed. No panels or encoders requiring sequential sync was found. It thus seems to be safe to default to simultaneous syncs when the ALIGN bit is available. This fixed AM5 EVM's panel, and no side effects have been observed on other panels or encoders. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Dave Gerlach authored
Update omapdss driver to set the state of the pins to: - "default on resume - "sleep" on suspend By optionally putting the pins into sleep state in the suspend callback we can accomplish two things. - minimize current leakage from pins and thus save power, - prevent the IP from driving pins output in an uncontrolled manner, which may happen if the power domain drops the domain regulator. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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- 15 Dec, 2015 13 commits
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Robert Jarzmik authored
This patch brings a first support of pxa framebuffer devices to a devicetree pxa platform, as was before platform data. There are restrictions with this port, the biggest one being the lack of support of smart panels. Moreover the conversion doesn't provide a way to declare multiple framebuffer configurations with different bits per pixel, only the LCD hardware bus width is used. The patch was tested on both pxa25x, pxa27x and pxa3xx platform (namely lubbock, mainstone and zylonite). Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Robert Jarzmik authored
In order to prepare the transition to a mixed platform data and device-tree initialization, remove all the platform data references all over the driver. Copy the platform data into the internal structure of the pxafb, and only use this afterward. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Ezequiel Garcia authored
There's no point in having support for framebuffer notifications is CONFIG_FB is disabled. This commit adds the necessary stubs for code to link properly when CONFIG_FB=n and moves fb-notify.o to be built only when CONFIG_FB=y. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Daniel Vetter authored
When the usual fbcon legacy options are enabled we have ->register_framebuffer ->fb notifier chain calls into fbcon ->fbcon sets up console on new fbi ->fbi->set_par ->drm_fb_helper_set_par exercises full kms api And because of locking inversion hilarity all of register_framebuffer is done with the console lock held. Which means that the first time on driver load we exercise _all_ the kms code (all probe paths and modeset paths for everything connected) is under the console lock. That means if anything goes belly-up in that big pile of code nothing ever reaches logfiles (and the machine is dead). Usual tactic to debug that is to temporarily remove those console_lock calls to be able to capture backtraces. I'm fed up writing this patch and recompiling kernels. Hence this patch here to add an unsafe, kernel-taining option to do this at runtime. Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Dmitry Eremin-Solenikov authored
At least NV3 requires for chip to be unlocked before it is possible to access I2C registers. Without it, it is not possible to read EDID. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Arnd Bergmann authored
The sm712fb framebuffer driver encloses the power-management functions in #ifdef CONFIG_PM, but the smtcfb_pci_suspend/resume functions are only really used when CONFIG_PM_SLEEP is also set, as a frequent gcc warning shows: fbdev/sm712fb.c:1549:12: warning: 'smtcfb_pci_suspend' defined but not used fbdev/sm712fb.c:1572:12: warning: 'smtcfb_pci_resume' defined but not used The driver also avoids using the SIMPLE_DEV_PM_OPS macro when CONFIG_PM is unset, which is redundant. This changes the driver to remove the #ifdef and instead mark the functions as __maybe_unused, which is a nicer anyway, as it provides build testing for all the code in all configurations and is harder to get wrong. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Arnd Bergmann authored
The auo_k190x framebuffer driver encloses the power-management functions in #ifdef CONFIG_PM, but the auok190x_suspend/resume functions are only really used when CONFIG_PM_SLEEP is also set, as a frequent gcc warning shows: drivers/video/fbdev/auo_k190x.c:859:12: warning: 'auok190x_suspend' defined but not used drivers/video/fbdev/auo_k190x.c:899:12: warning: 'auok190x_resume' defined but not used This changes the driver to remove the #ifdef and instead mark the functions as __maybe_unused, which is a nicer anyway, as it provides build testing for all the code in all configurations and is harder to get wrong. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Arnd Bergmann authored
The sis framebuffer driver complains with a compile-time warning if neither the FB_SIS_300 nor FB_SIS_315 symbols are selected: drivers/video/fbdev/sis/sis_main.c:61:2: warning: #warning Neither CONFIG_FB_SIS_300 nor CONFIG_FB_SIS_315 is se This is reasonable because it doesn't work in that case, but it's also annoying for randconfig builds and is one of the most common warnings I'm seeing on ARM now. This changes the Kconfig logic to prevent the silly configuration, by always selecting the FB_SIS_300 variant if the other one is not set. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Geert Uytterhoeven authored
As of commit 44d88c75 ("ARM: shmobile: Remove legacy SoC code for R-Mobile A1"), the SH-Mobile HDMI driver is no longer used. In theory it could still be used on R-Mobile A1 SoCs, but that requires adding DT support to the driver, which is not planned. Remove the driver, it can be resurrected from git history when needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Julia Lawall authored
These geode ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Chen-Yu Tsai authored
This claims and enables regulators listed in the simple framebuffer dt node. This is needed so that regulators powering the display pipeline and external hardware, described in the device node and known by the kernel code, will remain properly enabled. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Chen-Yu Tsai authored
The physical display tied to the framebuffer may have regulators providing power to it, such as power for LCDs or interface conversion chips. The number of regulators in use may vary, but the regulator supply binding can not be a list. Instead just support any named regulator supply properties under the device node. These should be properly named to match the device schematics / design. The driver should take care to go through them all. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Sudip Mukherjee authored
The value of d_best is always 0 and never changes. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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- 14 Dec, 2015 1 commit
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Linus Torvalds authored
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- 13 Dec, 2015 4 commits
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Peter Zijlstra authored
Jan Stancek reported that I wrecked things for him by fixing things for Vladimir :/ His report was due to an UNINTERRUPTIBLE wait getting -EINTR, which should not be possible, however my previous patch made this possible by unconditionally checking signal_pending(). We cannot use current->state as was done previously, because the instruction after the store to that variable it can be changed. We must instead pass the initial state along and use that. Fixes: 68985633 ("sched/wait: Fix signal handling in bit wait helpers") Reported-by: Jan Stancek <jstancek@redhat.com> Reported-by: Chris Mason <clm@fb.com> Tested-by: Jan Stancek <jstancek@redhat.com> Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> Tested-by: Chris Mason <clm@fb.com> Reviewed-by: Paul Turner <pjt@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: tglx@linutronix.de Cc: Oleg Nesterov <oleg@redhat.com> Cc: hpa@zytor.com Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client bugfix from Trond Myklebust: "SUNRPC: Fix a NFSv4.1 callback channel regression" * tag 'nfs-for-4.4-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: SUNRPC: Fix callback channel
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixlets from Thomas Gleixner: "Two trivial fixes which add missing header fileas and forward declarations so the code will compile even when the magic include chains are different" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3: Add missing include for barrier.h irqchip/gic-v3: Add missing struct device_node declaration
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fix from Thomas Gleixner: "A single fix to unbreak a clocksource driver which has more than 32bit counter width" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: Mmio: remove artificial 32bit limitation
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