- 15 Jun, 2017 3 commits
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Dawid Kurek authored
Smaller scope reduces visibility of variable and makes usage of uninitialized variable less possible. Changes in v2: - separate declaration and initialization Changes in v3: - add missing signed-off-by tag Signed-off-by:
Dawid Kurek <dawikur@gmail.com> Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170615174556.GA8872@gmail.com
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Fabio Estevam authored
According to the eLCDIF initialization steps listed in the MX6SX Reference Manual the eLCDIF block reset is mandatory. Without performing the eLCDIF reset the display shows garbage content when the kernel boots. In earlier tests this issue has not been observed because the bootloader was previously showing a splash screen and the bootloader display driver does properly implement the eLCDIF reset. Add the eLCDIF reset to the driver, so that it can operate correctly independently of the bootloader. Tested on a imx6sx-sdb board. Cc: <stable@vger.kernel.org> Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by:
Marek Vasut <marex@denx.de> Signed-off-by:
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Dawid Kurek authored
Forward declarations in C are great but I'm pretty sure one is enough. Signed-off-by:
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- 14 Jun, 2017 10 commits
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Hoegeun Kwon authored
This patch supports TM2e panel and the panel has 1600x2560 resolution in 5.65" physical. This identify panel type with compatibility string, also invoke display mode that matches the type. So add the check code for s6e3ha2 compatibility and s6e3hf2 type and select the drm_display_mode of default and edge type. Signed-off-by:
Hoegeun Kwon <hoegeun.kwon@samsung.com> Reviewed-by:
Andrzej Hajda <a.hajda@samsung.com> Reviewed-by:
Inki Dae <inki.dae@samsung.com> [treding@nvidia.com: fixup checkpatch warnings] Signed-off-by:
Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/1492504836-19225-3-git-send-email-hoegeun.kwon@samsung.com
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Hoegeun Kwon authored
The samsung s6e3hf2 panel is a 5.65" 1600x2560 AMOLED panel connected using MIPI-DSI interfaces. The s6e3hf2 is add to samsung,s6e3ha2.txt binding because it is a panel similar to the s6e3ha2. So add the compatible string and comments. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Arnd Bergmann authored
Without the dependency, we run into a link error: drivers/gpu/drm/panel/panel-sitronix-st7789v.o: In function `st7789v_probe': panel-sitronix-st7789v.c:(.text.st7789v_probe+0xc0): undefined reference to `of_find_backlight_by_node' Fixes: 7142afb3 ("drm/panel: Add driver for sitronix ST7789V LCD controller") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
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Arnd Bergmann authored
The new S6E3HA2 driver fails to link when backlight is disabled: ERROR: "backlight_device_register" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined! ERROR: "backlight_device_unregister" [drivers/gpu/drm/panel/panel-samsung-s6e3ha2.ko] undefined! This adds a Kconfig dependency like we have it for some other panel drivers. Fixes: ed29f942 ("drm/panel: Add support for S6E3HA2 panel driver on TM2 board") Signed-off-by:
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Lucas Stach authored
This adds support for the AU Optronics Corporation 31.5" FHD (1920x1080) LVDS TFT LCD panel, which can be supported by the simple panel driver Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Acked-by:
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Lucas Stach authored
This adds support for the NLT Technologies NL192108AC18-02D 15.6" LVDS FullHD TFT LCD panel, which can be supported by the simple panel driver. Timings are taken from the preliminary datasheet, as a final one is not yet available. Signed-off-by:
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Lucas Stach authored
NLT technologies is the former NEC display business, but changed its name to NLT Technologies when forming a joint venture with Shenzhen AVIC OPTOELECTRONICS, Ltd. Signed-off-by:
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Lucas Stach authored
This adds support for the NEC LCD Technologies, Ltd. 12.1" WXGA (1280x800) LVDS TFT LCD panel, which can be supported by the simple panel driver. Signed-off-by:
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Chris Zhong authored
Support Innolux P079ZCA 7.85" 768x1024 TFT LCD panel, it is a MIPI DSI panel. Signed-off-by:
Chris Zhong <zyw@rock-chips.com> Reviewed-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Chris Zhong authored
The Innolux P079ZCA is a 7.85" panel with a 768X1024 resolution and connected to DSI using four lanes. Signed-off-by:
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- 13 Jun, 2017 1 commit
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Christophe JAILLET authored
If one 'drm_gem_handle_create()' fails, we leak somes handles and some memory. In order to fix it: - move the 'free(bo_state)' at the end of the function so that it is also called in the eror handling path. This has the side effect to also try to free it if the first 'kcalloc' fails. This is harmless. - add a new label, err_delete_handle, in order to delete already allocated handles in error handling path - remove the now useless 'err' label The way the code is now written will also delete the handles if the 'copy_to_user()' call fails. Signed-off-by:Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170512123803.1886-1-christophe.jaillet@wanadoo.fr
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- 12 Jun, 2017 1 commit
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Hans Verkuil authored
The bo->resv pointer could be NULL, leading to kernel oopses like the one below. This patch ensures that bo->resv is always set in vc4_create_object ensuring that it is never NULL. Thanks to Eric Anholt for pointing to the correct solution. [ 19.738487] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 19.746805] pgd = ffff8000275fc000 [ 19.750319] [00000000] *pgd=0000000000000000 [ 19.754715] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 19.760369] Modules linked in: smsc95xx usbnet vc4 drm_kms_helper drm pwm_bcm2835 i2c_bcm2835 bcm2835_rng rng_core bcm2835_dma virt_dma [ 19.772767] CPU: 0 PID: 1297 Comm: Xorg Not tainted 4.12.0-rc1-rpi3 #58 [ 19.779476] Hardware name: Raspberry Pi 3 Model B (DT) [ 19.784688] task: ffff800028268000 task.stack: ffff800026c08000 [ 19.790705] PC is at ww_mutex_lock_interruptible+0x14/0xc0 [ 19.796329] LR is at vc4_submit_cl_ioctl+0x4fc/0x998 [vc4] ... [ 20.240855] [<ffff0000088975f4>] ww_mutex_lock_interruptible+0x14/0xc0 [ 20.247528] [<ffff0000009b3ea4>] vc4_submit_cl_ioctl+0x4fc/0x998 [vc4] [ 20.254372] [<ffff0000008f75f8>] drm_ioctl+0x180/0x438 [drm] [ 20.260120] [<ffff00000821383c>] do_vfs_ioctl+0xa4/0x7d0 [ 20.265510] [<ffff000008213fe4>] SyS_ioctl+0x7c/0x98 [ 20.270550] [<ffff000008082f30>] el0_svc_naked+0x24/0x28 [ 20.275941] Code: d2800002 d5384103 910003fd f9800011 (c85ffc04) [ 20.282527] ---[ end trace 1f6bd640ff32ae12 ]--- Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by:
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- 08 Jun, 2017 1 commit
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Jyri Sarha authored
There is no reason why the name field should not be const, but several why it should. The struct should only be used by drm_property_create_enum() and there the name-field from the struct is passed to drm_property_add_enum(), which takes a const char * as a parameter. Signed-off-by:
Jyri Sarha <jsarha@ti.com> Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/5dd3b6a1e20452bd8abdcbc55d1e8d7f56262266.1496161066.git.jsarha@ti.com
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- 07 Jun, 2017 3 commits
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Eric Anholt authored
If src_x/y were nonzero, we failed to shift them down by 16 to get the pixel offset. The recent CMA helper function gets it right. Signed-off-by:
Mircea Carausu <mircea.carausu@broadcom.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170603015733.13266-1-eric@anholt.netReviewed-by:
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Boris Brezillon authored
Attach the panel-bridge created by drm_panel_bridge_add() to the parallel RGB encoder. Fixes: 96160a80 ("drm/atmel-hlcdc: Replace the panel usage with drm_panel_bridge.") Reviewed-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by:
Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1496748866-17165-1-git-send-email-boris.brezillon@free-electrons.com
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Maarten Lankhorst authored
This fixes the following depmod error when building drm as a module: depmod: ERROR: Found 6 modules in dependency cycles! depmod: ERROR: Cycle detected: drm -> drm_kms_helper -> drm Fixes: 13dfc054 ("drm/bridge: Refactor out the panel wrapper from the lvds-encoder bridge.") Tested-by:
Lofstedt, Marta <marta.lofstedt@intel.com> Reviewed-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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- 05 Jun, 2017 7 commits
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Eric Anholt authored
This cuts 135 lines of boilerplate, at the cost of losing the filtering of get_modes() using atmel_hlcdc_dc_mode_valid(). The atomic check will still check that we don't set an invalid mode, though. Acked-by:
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Eric Anholt authored
drm_encoder_cleanup() finishes with memsetting it to 0, already. Acked-by:
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Eric Anholt authored
Another 100 lines of boilerplate gone, while allowing for bridges to be connected in the display chain. Reviewed-by:
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Eric Anholt authored
The newer version of the RPi panel driver is going to be a combination of a bridge and a panel, but we should also support panels without a bridge, so the panel-bridge layer lets us do that cleanly. v2: Drop "dev" argument. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
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Eric Anholt authored
Many DRM drivers have common code to make a stub connector implementation that wraps a drm_panel. By wrapping the panel in a DRM bridge, all of the connector code (including calls during encoder enable/disable) goes away. v2: Fix build with CONFIG_DRM=m, drop "dev" argument that should just be the panel's dev, move kerneldoc up a level and document _remove(). v3: Fix another breakage with CONFIG_DRM=m, fix breakage with CONFIG_OF=n, move protos under CONFIG_DRM_PANEL_BRIDGE, wrap a line. Signed-off-by: -
Jose Abreu authored
Now that we have a callback to check if bridge supports a given mode we can use it in Synopsys Designware HDMI bridge so that we restrict the number of probbed modes to the ones we can actually display. Also, there is no need to use mode_fixup() callback as mode_valid() will handle the mode validation. NOTE: I also had to change the pdata declaration of mode_valid custom callback so that the passed modes are const. I also changed in the platforms I found. Not even compiled it though. Signed-off-by:
Jose Abreu <joabreu@synopsys.com> Acked-by:
Neil Armstrong <narmstrong@baylibre.com> Acked-by:
Philipp Zabel <p.zabel@pengutronix.de> Cc: Carlos Palminha <palminha@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Archit Taneja <architt@codeaurora.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: David Airlie <airlied@linux.ie> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> Signed-off-by:
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Benjamin Gaignard authored
Use devm_of_platform_populate() to be sure that of_platform_depopulate is called when removing the driver. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> CC: Shawn Guo <shawnguo@kernel.org> CC: David Airlie <airlied@linux.ie> CC: dri-devel@lists.freedesktop.org CC: linux-kernel@vger.kernel.org Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1496072763-31209-4-git-send-email-benjamin.gaignard@linaro.org
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- 02 Jun, 2017 3 commits
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Eric Anholt authored
Failing to do so meant that we got a resume() callback on first use of the device, so we would leak the bin BO that we allocated during probe. Signed-off-by:
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Corentin Labbe authored
Instead of rewriting write/readq, use linux/io-64-nonatomic-lo-hi.h which already have them. Signed-off-by:
Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by:
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Jose Abreu authored
Now that we have a callback to check if crtc supports a given mode we can use it in atmel-hlcdc so that we restrict the number of probbed modes to the ones we can actually display. Also, remove the mode_fixup() callback as this is no longer needed because mode_valid() will be called before. Signed-off-by:
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- 01 Jun, 2017 4 commits
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Daniel Vetter authored
Only in the load failure path, where the hardware is quiet anyway. Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by:
Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-19-daniel.vetter@ffwll.ch
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Daniel Vetter authored
IRQs are properly shut down, so it almost works as race-free shutdown. Except the irq is stopped after the vblank stuff, so boom anyway. Proper way would be to call drm_atomic_helper_shutdown before any of the kms things gets stopped. So no harm in removing the drm_vblank_cleanup here really. Same story for both hdlcd and mali. v2: Move misplaced malidp hunk to this patch (Liviu). Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Acked-by:
Liviu Dudau <liviu.dudau@arm.com> Signed-off-by:
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Daniel Vetter authored
Pull a (much shorter) overview into drm_irq.c, and instead put the callback documentation into in-line comments in drm_drv.h. v2: Move the include stanzas back to the split-up patch (Stefan). Cc: Stefan Agner <stefan@agner.ch> Reviewed-by:
Stefan Agner <stefan@agner.ch> Signed-off-by:
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Daniel Vetter authored
drm_irq.c contains both the irq helper library (optional) and the vblank support (optional, but part of the modeset uapi, and doesn't require the use of the irq helpers at all. Split this up for more clarity of the scope of the individual bits. v2: Move misplaced hunks to this patch (Stefan). Cc: Stefan Agner <stefan@agner.ch> Reviewed-by:
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- 31 May, 2017 7 commits
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Boris Brezillon authored
Fixes a copy&paste error. Signed-off-by:
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Arnd Bergmann authored
The driver is written in a way to enable compile-testing without CONFIG_ARM_AMBA, but it just causes needless warnings: drivers/gpu/drm/pl111/pl111_drv.c:149:26: error: 'pl111_drm_driver' defined but not used [-Werror=unused-variable] drivers/gpu/drm/pl111/pl111_drv.c:81:12: error: 'pl111_modeset_init' defined but not used [-Werror=unused-function] This unhides the probe/remove functions again and just leaves the driver object as unused when CONFIG_ARM_AMBA is disabled, with a __maybe_unused annotation to shut up the warning. Fixes: bed41005 ("drm/pl111: Initial drm/kms driver for pl111") Signed-off-by:
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Ville Syrjälä authored
drm_atomic_set_mode_for_crtc() doesn't modify the passed mode, so let's make it const. Signed-off-by:
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Daniel Vetter authored
CRTC don't seem to get shut down in a controlled fashion, but no one bothers to stop interrupts either so this races no matter what. Might as well remove it. A call to drm_atomic_helper_shutdown would be pretty sweet somewhere (and maybe getting rid of the load/unload callbacks while at it). Cc: Alexey Brodkin <abrodkin@synopsys.com> Reviewed-by:
Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by:
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Daniel Vetter authored
Again almost correct, but since interrupts are shut down after vblank still a race. Proper cleanup would call drm_atomic_helper_shutdown to make sure this really is safe. v2: Remove misplace malidp hunk (Liviu). Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by:
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Daniel Vetter authored
It's only done in the driver load error path, where vblanks don't need to be quiescent anyway. And that's all drm_vblank_cleanup does, since the core will release the vblank allocations on its own already. So drop it. Cc: Philipp Zabel <p.zabel@pengutronix.de> Acked-by:
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Daniel Vetter authored
Again seems just cargo-culted. Cc: Neil Armstrong <narmstrong@baylibre.com> Acked-by:
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