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2022-06-28drm/vc4: dsi: Correct DSI divider calculationsDave Stevenson1-4/+2
The divider calculations tried to find the divider just faster than the clock requested. However if it required a divider of 7 then the for loop aborted without handling the "error" case, and could end up with a clock lower than requested. The integer divider from parent PLL to DSI clock is also capable of going up to /255, not just /7 that the driver was trying. This allows for slower link frequencies on the DSI bus where the resolution permits. Correct the loop so that we always have a clock greater than requested, and covering the whole range of dividers. Fixes: 86c1b9eff3f2 ("drm/vc4: Adjust modes in DSI to work around the integer PLL divider.") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-13-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: dsi: Release workaround buffer and DMADave Stevenson1-1/+28
On Pi0-3 the driver allocates a buffer and requests a DMA channel because the ARM can't write to DSI1's registers directly. However, we never release that buffer or channel. Let's add a device-managed action to release each. Fixes: 4078f5757144 ("drm/vc4: Add DSI driver") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-12-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: dpi: Ensure a default format is selectedDave Stevenson1-3/+5
In a couple of error/incomplete configuration cases, the DPI_FORMAT bits wouldn't get set. Enforce our RGB888 default in all these cases. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-11-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: dpi: Add option for inverting pixel clock and output enableDave Stevenson1-28/+38
DRM provides flags for inverting pixel clock and output enable signals, but these were not mapped to the relevant registers. Add those mappings. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-10-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: dpi: Add support for composite syncs to vc4_dpiDave Stevenson1-9/+16
The hardware can combine H&V syncs onto the output enable line as composite syncs, so add the relevant configuration to do that. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-9-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: hvs: Add debugfs node that dumps the current display listsDave Stevenson1-0/+42
This allows easy analysis of display lists when debugging. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-8-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: plane: Add alpha_blend_mode property to each plane.Dave Stevenson1-13/+49
Move from only supporting the default of pre-multiplied alpha to supporting user specified blend mode using the standardised property. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-7-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: plane: Fix margin calculations for the right/bottom edgesDave Stevenson1-4/+4
The current plane margin calculation code clips the right and bottom edges of the range based using the left and top margins. This is obviously wrong, so let's fix it. Fixes: 666e73587f90 ("drm/vc4: Take margin setup into account when updating planes") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-6-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: plane: Remove subpixel positioning checkDom Cobley1-13/+9
There is little harm in ignoring fractional coordinates (they just get truncated). Without this: modetest -M vc4 -F tiles,gradient -s 32:1920x1080-60 -P89@74:1920x1080*.1.1@XR24 is rejected. We have the same issue in Kodi when trying to use zoom options on video. Note: even if all coordinates are fully integer. e.g. src:[0,0,1920,1080] dest:[-10,-10,1940,1100] it will still get rejected as drm_atomic_helper_check_plane_state uses drm_rect_clip_scaled which transforms this to fractional src coords Fixes: 21af94cf1a4c ("drm/vc4: Add support for scaling of display planes.") Signed-off-by: Dom Cobley <popcornmix@gmail.com> Link: https://lore.kernel.org/r/20220613144800.326124-5-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/vc4: kms: Use maximum FIFO load for the HVS clock rateMaxime Ripard1-1/+3
The core clock computation takes into account both the load due to the input (ie, planes) and its output (ie, encoders). However, while the input load needs to consider all the planes, and thus sum all of their associated loads, the output happens mostly in parallel. Therefore, we need to consider only the maximum of all the output loads, and not the sum like we were doing. This resulted in a clock rate way too high which could be discarded for being too high by the clock framework. Since recent changes, the clock framework will even downright reject it, leading to a core clock being too low for its current needs. Fixes: 16e101051f32 ("drm/vc4: Increase the core clock based on HVS load") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-4-maxime@cerno.tech
2022-06-28drm/vc4: kms: Warn if clk_set_min_rate failsMaxime Ripard1-2/+2
We currently ignore the clk_set_min_rate return code assuming it would succeed. However, it can fail if we ask for a rate higher than the current maximum for example. Since we can't fail in atomic_commit, at least warn on failure. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-3-maxime@cerno.tech
2022-06-28drm/vc4: drv: Adopt the dma configuration from the HVS or V3D componentDave Stevenson1-0/+19
vc4_drv isn't necessarily under the /soc node in DT as it is a virtual device, but it is the one that does the allocations. The DMA addresses are consumed by primarily the HVS or V3D, and those require VideoCore cache alias address mapping, and so will be under /soc. During probe find the a suitable device node for HVS or V3D, and adopt the DMA configuration of that node. Cc: <stable@vger.kernel.org> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20220613144800.326124-2-maxime@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-28drm/fourcc: Document the Intel CCS modifiers' CC plane expected pitchImre Deak1-4/+4
The driver expects the pitch of the Intel CCS CC color planes to be 64 bytes aligned, adjust the modifier descriptions accordingly. Cc: Nanley Chery <nanley.g.chery@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Nanley Chery <nanley.g.chery@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220623144955.2486736-1-imre.deak@intel.com
2022-06-28drm/doc: Fix comment typoMarek Vasut1-1/+1
Replace apprpriately with appropriately. Fixes: 1e4d84c6589e9 ("drm/doc: Polish plane composition property docs") Signed-off-by: Marek Vasut <marex@denx.de> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Sean Paul <seanpaul@chromium.org> Cc: Simon Ser <contact@emersion.fr> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20220628003407.77765-1-marex@denx.de
2022-06-27drm/stm: ltdc: update hardware error managementYannick Fertre2-19/+77
The latest hardware version (0x40100) supports a hardware threshold register (aka FUTR) to trigger a fifo underrun interrupt. A software threshold has been implemented for other hardware versions. The threshold is set to 128 by default. Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134654.594373-1-yannick.fertre@foss.st.com
2022-06-27drm/stm: ltdc: add support of horizontal & vertical mirroringYannick Fertre2-56/+108
Support of vertical & horizontal mirroring features thanks to the plane rotation property. Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134547.593790-1-yannick.fertre@foss.st.com
2022-06-27drm/stm: ltdc: add support of the dynamic z-orderYannick Fertre3-3/+22
Zpos property is immutable for all hardware versions except the last version (0x40100) which support the blending order feature (dynamic z-order). Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134459.593379-1-yannick.fertre@foss.st.com
2022-06-27drm/stm: ltdc: fix various coding-style warningsYannick Fertre1-3/+2
Fix issues reported by checkpatch.pl: - Braces {} should be used on all arms - Blank lines Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134334.592805-1-yannick.fertre@foss.st.com
2022-06-27drm/stm: ltdc: remove error message about scalingYannick Fertre1-1/+2
Remove error message about scaling & replace it by a debug message to avoid too much error. Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134250.592408-1-yannick.fertre@foss.st.com
2022-06-27drm/stm: ltdc: disable all layers before crtc shutdownYannick Fertre1-0/+6
All plans must be disabled before the CRTC shutdown helping the crtc to restart from a clean situation (without unwanted planes already enable). Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220603134151.591997-1-yannick.fertre@foss.st.com
2022-06-27drm/doc: Add KUnit documentationJosé Expósito1-0/+32
Explain how to run the KUnit tests present in the DRM subsystem and clarify why the UML-only options were not added to the configuration file present in drivers/gpu/drm/.kunitconfig [1] [2]. [1] https://lore.kernel.org/dri-devel/CABVgOSn8i=LO5p7830h2XU1Jgg0KrN0qTnxkOMhf1oTgxjaKKw@mail.gmail.com/ [2] https://lore.kernel.org/dri-devel/CAGS_qxqpiCim_sy1LDK7PLwVgWf-LKW+uNFTGM=T7ydk-dYcEw@mail.gmail.com/ Reviewed-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-4-jose.exposito89@gmail.com
2022-06-27drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_rgb332()José Expósito5-0/+184
Test the conversion from XRGB8888 to RGB332. What is tested? - Different values for the X in XRGB8888 to make sure it is ignored - Different clip values: Single pixel and full and partial buffer - Well known colors: White, black, red, green, blue, magenta, yellow and cyan - Other colors: Randomly picked - Destination pitch How to run the tests? $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests \ --kconfig_add CONFIG_VIRTIO_UML=y \ --kconfig_add CONFIG_UML_PCI_OVER_VIRTIO=y Suggested-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-3-jose.exposito89@gmail.com
2022-06-27drm/rect: Add DRM_RECT_INIT() macroJosé Expósito1-0/+16
Add a helper macro to initialize a rectangle from x, y, width and height information. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-2-jose.exposito89@gmail.com
2022-06-27drm/ast: Enable primary plane with CRTCThomas Zimmermann1-4/+9
As the CRTC requires a primary plane for display, ensure that the primary plane is enabled with the CRTC. Use drm_atomic_helper_check_crtc_state(). Add all affected planes to the atomic state so that their state will be checked as well. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617103226.25617-4-tzimmermann@suse.de
2022-06-27drm/simple-kms: Use drm_atomic_helper_check_crtc_state()Thomas Zimmermann1-8/+6
Simple-KMS helpers guarantee that the CRTC and plane enable flags are synchronized. Implement this with atomic helpers drm_atomic_helper_check_crtc_state() on the CRTC side, and drm_atomic_helper_check_plane_state() on the plane side. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617103226.25617-3-tzimmermann@suse.de
2022-06-27drm/atomic-helper: Add helper drm_atomic_helper_check_crtc_state()Thomas Zimmermann2-0/+57
Add drm_atomic_helper_check_crtc_state(), which contains tests common to many CRTCs. The first added test verifies that an enabled CRTC has at least one enabled primary plane. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617103226.25617-2-tzimmermann@suse.de
2022-06-27drm/fb-helper: Fix out-of-bounds accessThomas Zimmermann1-8/+19
Clip memory range to screen-buffer size to avoid out-of-bounds access in fbdev deferred I/O's damage handling. Fbdev's deferred I/O can only track pages. From the range of pages, the damage handler computes the clipping rectangle for the display update. If the fbdev screen buffer ends near the beginning of a page, that page could contain more scanlines. The damage handler would then track these non-existing scanlines as dirty and provoke an out-of-bounds access during the screen update. Hence, clip the maximum memory range to the size of the screen buffer. While at it, rename the variables min/max to min_off/max_off in drm_fb_helper_deferred_io(). This avoids confusion with the macros of the same name. Reported-by: Nuno Gonçalves <nunojpg@gmail.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Nuno Gonçalves <nunojpg@gmail.com> Fixes: 67b723f5b742 ("drm/fb-helper: Calculate damaged area in separate helper") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: <stable@vger.kernel.org> # v5.18+ Link: https://patchwork.freedesktop.org/patch/msgid/20220621104617.8817-1-tzimmermann@suse.de
2022-06-27vfio/pci: Remove console driversAlex Williamson1-0/+5
Console drivers can create conflicts with PCI resources resulting in userspace getting mmap failures to memory BARs. This is especially evident when trying to re-use the system primary console for userspace drivers. Use the aperture helpers to remove these conflicts. v3: * call aperture_remove_conflicting_pci_devices() Reported-by: Laszlo Ersek <lersek@redhat.com> Suggested-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622140134.12763-4-tzimmermann@suse.de
2022-06-27drm: Implement DRM aperture helpers under video/Thomas Zimmermann11-170/+448
Implement DRM's aperture helpers under video/ for sharing with other sub-systems. Remove DRM-isms from the interface. The helpers track the ownership of framebuffer apertures and provide hand-over from firmware, such as EFI and VESA, to native graphics drivers. Other subsystems, such as fbdev and vfio, also have to maintain ownership of framebuffer apertures. Moving DRM's aperture helpers to a more public location allows all subsystems to interact with each other and share a common implementation. The aperture helpers are selected by the various firmware drivers within DRM and fbdev, and the VGA text-console driver. The original DRM interface is kept in place for use by DRM drivers. v3: * prefix all interfaces with aperture_ (Javier) * rework and simplify documentation (Javier) * rename struct dev_aperture to struct aperture_range * rebase onto latest DRM * update MAINTAINERS entry Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622140134.12763-3-tzimmermann@suse.de
2022-06-27MAINTAINERS: Broaden scope of simpledrm entryThomas Zimmermann1-1/+3
There will be more DRM drivers for firmware-provided framebuffers. Use the existing entry for simpledrm instead of adding a new one for each driver. Also add DRM's aperture helpers, which are part of the driver's infrastructure. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622140134.12763-2-tzimmermann@suse.de
2022-06-27drm/ast: Fix black screen when getting out of suspendJocelyn Falempe1-0/+13
With an AST2600, the screen is garbage when going out of suspend. This is because color settings are lost, and not restored on resume. Force the color settings on DPMS_ON, to make sure the settings are correct. I didn't write this code, it comes from the out-of-tree aspeed driver v1.13 https://www.aspeedtech.com/support_driver/ Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> Tested-by: Venkat Tadikonda <venkateswara.rao@intel.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Tested-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220622124815.356035-1-jfalempe@redhat.com
2022-06-27drm/mcde: Fix refcount leak in mcde_dsi_bindMiaoqian Lin1-0/+1
Every iteration of for_each_available_child_of_node() decrements the reference counter of the previous node. There is no decrement when break out from the loop and results in refcount leak. Add missing of_node_put() to fix this. Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220525115411.65455-1-linmq006@gmail.com
2022-06-25drm/connector: Remove usage of the deprecated ida_simple_xxx APIBo Liu1-7/+6
Use ida_alloc_xxx()/ida_free() instead of ida_simple_get()/ida_simple_remove(). The latter is deprecated and more verbose. Signed-off-by: Bo Liu <liubo03@inspur.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220617082319.7599-1-liubo03@inspur.com Link: https://patchwork.freedesktop.org/patch/msgid/20220621190055.8323-1-jiangjian@cdjrlc.com
2022-06-24drm/panel: introduce ebbg,ft8719 panelJoel Selvaraj4-0/+304
Add DRM panel driver for EBBG FT8719 6.18" 2246x1080 DSI video mode panel, which can be found on some Xiaomi Poco F1 phones. The panel's backlight is managed through QCOM WLED driver. Signed-off-by: Joel Selvaraj <jo@jsfamily.in> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/BY5PR02MB7009B6FA7F17A3DA36DDA44CD9DF9@BY5PR02MB7009.namprd02.prod.outlook.com
2022-06-24drm/mipi-dsi: Introduce mipi_dsi_dcs_write_seq macroJoel Selvaraj1-0/+17
A helper macro that can be used to simplify sending DCS commands. It is useful in scenarios like panel initialization which can sometimes involve sending lot of DCS commands. Signed-off-by: Joel Selvaraj <jo@jsfamily.in> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/BY5PR02MB700952493EEB6F0E77DC8416D9DF9@BY5PR02MB7009.namprd02.prod.outlook.com
2022-06-24dt-bindings: display: Add bindings for EBBG FT8719Joel Selvaraj1-0/+74
Add bindings for the EBBG FT8719 6.18" 2246x1080 DSI video mode panel, which can be found on some Xiaomi Poco F1 phones. The backlight is managed through the QCOM WLED driver. Signed-off-by: Joel Selvaraj <jo@jsfamily.in> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/BY5PR02MB7009E821B0D4AC20E11F8F13D9DF9@BY5PR02MB7009.namprd02.prod.outlook.com
2022-06-24dt-bindings: vendor-prefixes: Add prefix for EBBGJoel Selvaraj1-0/+2
Add a prefix for EBBG. They manufacture displays which are used in some Xiaomi phones, but I could not find much details about the company. Signed-off-by: Joel Selvaraj <jo@jsfamily.in> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/BY5PR02MB7009387E1E6C060864C03F87D9DF9@BY5PR02MB7009.namprd02.prod.outlook.com
2022-06-24drm: bridge: adv7511: Add check for mipi_dsi_driver_registerJiasheng Jiang1-3/+14
As mipi_dsi_driver_register could return error if fails, it should be better to check the return value and return error if fails. Moreover, if i2c_add_driver fails, mipi_dsi_driver_register should be reverted. Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220602103401.2980938-1-jiasheng@iscas.ac.cn
2022-06-24drm/bridge: parade-ps8622: Use backlight helperStephen Kitt1-5/+1
backlight_properties.fb_blank is deprecated. The states it represents are handled by other properties; but instead of accessing those properties directly, drivers should use the helpers provided by backlight.h. Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <steve@sk2.org> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220607181022.1119546-1-steve@sk2.org
2022-06-24drm/panel-edp: Add LQ140M1JW48 edp panel entryBjorn Andersson1-0/+1
Add panel identification entry for the Sharp LQ140M1JW48 eDP panel. Due to lacking documentation, a delay similar to those for the LQ140M1JW46 numbers are picked for now. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220608020614.4098292-1-bjorn.andersson@linaro.org
2022-06-24drm/panel: simple: add AM-800600P5TMQW-TB8HBastian Krause1-0/+33
Add support for the Ampire AM-800600P5TMQW-TB8H 800x600 panel. Data sheet is currently not publicly available, unfortunately. Signed-off-by: Bastian Krause <bst@pengutronix.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220610111511.1421067-2-bst@pengutronix.de
2022-06-24dt-bindings: display: simple: add Ampire AM-800600P5TMQW-TB8H panelBastian Krause1-0/+2
Add Ampire AM-800600P5TMQW-TB8H 8" TFT LCD panel compatible string. Signed-off-by: Bastian Krause <bst@pengutronix.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220610111511.1421067-1-bst@pengutronix.de
2022-06-24drm: shmobile: Use backlight helperStephen Kitt1-5/+1
This started with work on the removal of backlight_properties' deprecated fb_blank field, much of which can be taken care of by using helper functions provided by backlight.h instead of directly accessing fields in backlight_properties. This patch series doesn't involve fb_blank, but it still seems useful to use helper functions where appropriate. Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <steve@sk2.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220616170821.1348169-1-steve@sk2.org
2022-06-24drm/panel: panel-asus-z00t-tm5p5-n35596: Use backlight helperStephen Kitt1-6/+1
backlight_properties.fb_blank is deprecated. The states it represents are handled by other properties; but instead of accessing those properties directly, drivers should use the helpers provided by backlight.h. Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <steve@sk2.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220616172316.1355133-2-steve@sk2.org
2022-06-24drm/panel: panel-dsi-cm: Use backlight helpersStephen Kitt1-23/+6
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Instead of setting the power state by manually updating fields in struct backlight_properties, use backlight_enable() and backlight_disable(). These also call backlight_update_status() so the separate call is no longer needed. Signed-off-by: Stephen Kitt <steve@sk2.org> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220616172316.1355133-3-steve@sk2.org
2022-06-24drm/panel: sony-acx565akm: Use backlight helpersStephen Kitt1-10/+2
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Instead of manually checking the power state in struct backlight_properties, use backlight_is_blank(). While we're at it, drop .fb_blank from the initialisation function; it is deprecated, and this helps make progress towards enabling its removal. This change makes no functional difference since FB_BLANK_UNBLANK is the default value. Signed-off-by: Stephen Kitt <steve@sk2.org> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220616172316.1355133-4-steve@sk2.org
2022-06-24drm/panel: panel-simple: Add dev_err_probe if backlight could not be foundAlexander Stein1-1/+3
If the backlight node is not enabled, this (silently) returns with -EPROBE_DEFER. /sys/kernel/debug/devices_deferred also shows nothing helpful: $ cat /sys/kernel/debug/devices_deferred display With this patch, there is a helpful hint: $ cat /sys/kernel/debug/devices_deferred display panel-simple: Could not find backlight Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220621072118.513346-1-alexander.stein@ew.tq-group.com
2022-06-24drm/pl111: drop unexpected word "the" in the commentsJiang Jian1-1/+1
there is an unexpected word "the" in the comments that need to be dropped file: drivers/gpu/drm/pl111/pl111_display.c line: 251 * Note that the the ARM hardware's format reader takes 'r' from changed to * Note that the the ARM hardware's format reader takes 'r' from Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220621133107.3752-1-jiangjian@cdjrlc.com
2022-06-24drm/panel: nt35510: Remove duplicate 'the' in two places.Jiang Jian1-3/+3
file: ./drivers/gpu/drm/panel/panel-novatek-nt35510.c line: 193,214,253 * amplification for the the step-up circuit: changed to * amplification for the step-up circuit: Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220621140151.14404-1-jiangjian@cdjrlc.com
2022-06-24drm/panel: simple: Add DataImage FG1001L0DSSWMG01 panel supportPhilip Oberfichtner1-0/+27
Add DataImage FG1001L0DSSWMG01 10.1" 1280x800 TFT LCD panel support. Signed-off-by: Philip Oberfichtner <pro@denx.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220623112257.4178461-2-pro@denx.de
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-29 02:30:24 +0300