- 26 Aug, 2024 8 commits
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renjun wang authored
The blank line between title "Returns:" and detail description is not allowed, otherwise the title will goes under the description block in generated .html file after running `make htmldocs`. There are a few examples for current kerneldoc at [1][2][3]. v2: - use Link tag with stable URLs Signed-off-by:
renjun wang <renjunw0@foxmail.com> Link: https://www.kernel.org/doc/html/v6.10/gpu/drm-kms.html#c.drm_crtc_commit_wait # 1 Link: https://www.kernel.org/doc/html/v6.10/gpu/drm-kms.html#c.drm_atomic_get_crtc_state # 2 Link: https://www.kernel.org/doc/html/v6.10/gpu/i915.html#c.i915_vma_pin_fence # 3 Reviewed-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
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renjun wang authored
According to the context, the function description for fake_commit should be "prevent the atomic states from being freed too early" Signed-off-by:
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Abel Vesa authored
Add an eDP panel entry for BOE NE140WUM-N6G. Due to lack of documentation, use the delay_200_500_e80 timings like some other BOE entries for now. The raw edid of the panel is: 00 ff ff ff ff ff ff 00 09 e5 66 0b 00 00 00 00 1a 20 01 04 a5 1e 13 78 07 01 5f a7 54 4c 9b 24 11 51 56 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 9c 3e 80 c8 70 b0 3c 40 30 20 36 00 2e bc 10 00 00 1a 16 32 80 c8 70 b0 3c 40 30 20 36 00 2e bc 10 00 00 1a 00 00 00 fd 00 1e 3c 4c 4c 10 01 0a 20 20 20 20 20 20 00 00 00 fe 00 4e 45 31 34 30 57 55 4d 2d 4e 36 47 0a 00 dc Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
Abel Vesa <abel.vesa@linaro.org> Signed-off-by:
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Biju Das authored
The LCD controller is composed of Frame Compression Processor (FCPVD), Video Signal Processor (VSPD), and Display Unit (DU). It has DPI interface and supports a maximum resolution of WXGA along with 2 RPFs to support the blending of two picture layers and raster operations (ROPs). The DU module is connected to VSPD. Add RZ/G2UL DU support. Signed-off-by:
Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240822162320.5084-3-biju.das.jz@bp.renesas.com
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Biju Das authored
Document DU found in RZ/G2UL SoC. The DU block is identical to RZ/G2L SoC, but has only DPI interface. While at it, add missing required property port@1 for RZ/G2L and RZ/V2L SoCs. Currently there is no user for the DPI interface and hence there won't be any ABI breakage for adding port@1 as required property for RZ/G2L and RZ/V2L SoCs. Acked-by:
Conor Dooley <conor.dooley@microchip.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Lad Prabhakar authored
All the RZ/G2L DU specific components are located under the rz-du folder, so it makes sense to move the RZ/G2L MIPI DSI driver there instead of keeping it in the rcar-du folder. This change improves the organization and modularity of the driver configuration by grouping related settings together. Signed-off-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Acked-by:
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Ma Ke authored
As it may return NULL pointer and cause NULL pointer dereference. Add check for the return value of alloc_ordered_workqueue. Cc: stable@vger.kernel.org Fixes: 2f95bc6d ("drm: omapdrm: Perform initialization/cleanup at probe/remove time") Signed-off-by:
Ma Ke <make24@iscas.ac.cn> Signed-off-by:
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Jani Nikula authored
s/tryock_only/trylock_only/ Fixes: da966b82 ("drm/ttm: Provide a generic LRU walker helper") Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Christian König <christian.koenig@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240823141110.3431423-1-jani.nikula@intel.comSigned-off-by:
Jani Nikula <jani.nikula@intel.com>
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- 23 Aug, 2024 7 commits
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Hamza Mahfooz authored
Ideally, we want to drop the legacy vblank enable for older ASICs. This should be possible now, since we can now specify how many frames we need to wait before disabling vblanking instead of being forced to either choose between no delay (which can still be buggy) and drm_vblank_offdelay (which is much longer by default than is required on AMD hardware). Suggested-by:
Leo Li <sunpeng.li@amd.com> Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Signed-off-by:
Hamza Mahfooz <hamza.mahfooz@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240822161856.174600-4-hamza.mahfooz@amd.com
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Hamza Mahfooz authored
Ideally, we want to enable immediate vblank disable, when possible and we should be able to do so on DCN35+, if PSR isn't supported by a given CRTC. Suggested-by:
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Hamza Mahfooz authored
Hook up drm_crtc_vblank_on_config() in amdgpu_dm. So, that we can enable PSR and other static screen optimizations more quickly, while avoiding stuttering issues that are accompanied by the following dmesg error: [drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3 This also allows us to mimic how vblanking is handled by the Windows amdgpu driver. Specifically, we wait two idle frames before disabling the vblank timer there. Reviewed-by:
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Jocelyn Falempe authored
This patch adds a new panic screen, with a QR code and the kmsg data embedded. If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will be compressed with zlib and encoded as a numerical segment, and appended to the URL as a URL parameter. This allows to save space, and put about ~7500 bytes of kmsg data, in a V40 QR code. Linux distributions can customize the URL, and put a web frontend to directly open a bug report with the kmsg data. Otherwise the kmsg data will be encoded as a binary segment (ie raw ascii) and only a maximum of 2953 bytes of kmsg data will be available in the QR code. You can also limit the QR code size with DRM_PANIC_SCREEN_QR_VERSION. Signed-off-by:
Jocelyn Falempe <jfalempe@redhat.com> Reviewed-by:
Alice Ryhl <aliceryhl@google.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240822073852.562286-5-jfalempe@redhat.com
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Jocelyn Falempe authored
Move logo rectangle initialisation, and logo drawing in separate functions, so they can be re-used by different panic screens. It prepares the introduction of the QR code panic screen. Signed-off-by:
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Jocelyn Falempe authored
Check if two rectangles overlap. It's a bit similar to drm_rect_intersect() but this won't modify the rectangle. Simplifies a bit drm_panic. Signed-off-by:
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Jocelyn Falempe authored
Add a parameter to the blit function, to upscale the image. This is necessary to draw a QR code, otherwise, the pixels are usually too small to be readable by most QR code reader. It can also be used later for drawing fonts on high DPI display. Signed-off-by:
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- 22 Aug, 2024 14 commits
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Stefan Wahren authored
Common pattern of handling deferred probe can be simplified with dev_err_probe() and devm_clk_get_optional(). This results in much less code. Signed-off-by:
Stefan Wahren <wahrenst@gmx.net> Reviewed-by:
Maíra Canal <mcanal@igalia.com> Signed-off-by:
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Stefan Wahren authored
DRM_ERROR() has been deprecated in favor of pr_err(). However, we should prefer to use drm_err() whenever possible so we get device- specific output with the error message. In error case of kcalloc, we can simply drop DRM_ERROR(), because kcalloc already logs errors. Suggested-by:
Maxime Ripard <mripard@kernel.org> Reviewed-by:
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Stefan Wahren authored
The commit 0f525133 ("drm/vc4: hdmi: Make sure the controller is powered in detect") introduced the necessary power management handling to avoid register access while controller is powered down. Unfortunately it just print a warning if pm_runtime_resume_and_get() fails and proceed anyway. This could happen during suspend to idle. So we must assume it is unsafe to access the HDMI register. So bail out properly. Fixes: 0f525133 ("drm/vc4: hdmi: Make sure the controller is powered in detect") Signed-off-by:
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Thomas Zimmermann authored
Ast's BMC connector tracks the status of an underlying physical connector and updates the BMC status accordingly. This functionality works around GNOME's settings app, which cannot handle multiple outputs on the same CRTC. The workaround is now obsolete as all code for physical outputs handle BMC support internally. Hence, remove the driver's code and the BMC output entirely. v3: - remove struct ast_bmc_connector Signed-off-by:
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Thomas Zimmermann authored
Permanently set the connector status to 'connected'. Return BMC modes for connector if no display is attached to the physical DP connector. Otherwise use EDID modes as before. If the status of the physical connector changes, the driver still generates a hotplug event. DRM clients will then reconfigure their output to a mode appropriate for either physical display or BMC. v3: - use struct ast_connector.physical_status to handle BMC Signed-off-by:
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Thomas Zimmermann authored
Permanently set the connector status to 'connected'. Return BMC modes for connector if no display is attached to the physical DP connector. Otherwise use EDID modes as before. If the status of the physical connector changes, the driver still generates a hotplug event. DRM clients will then reconfigure their output to a mode appropriate for either physical display or BMC. v3: - use struct ast_connector.physical_status to handle BMC Signed-off-by:
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Thomas Zimmermann authored
Permanently set the connector status to 'connected'. Return BMC modes for connector if no display is attached to the physical DP connector. Otherwise use EDID modes as before. If the status of the physical connector changes, the driver still generates a hotplug event. DRM clients will then reconfigure their output to a mode appropriate for either physical display or BMC. v3: - use struct ast_connector.physical_status to handle BMC Signed-off-by:
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Thomas Zimmermann authored
Convert DP501 support to struct drm_edid and its helpers. Simplifies and modernizes the EDID handling. The driver reads 4 bytes at once, but the overall read length is now variable. Therefore update the EDID read loop to never return more than the requested bytes. v2: - fix reading EDID data Signed-off-by:
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Thomas Zimmermann authored
Permanently set the connector status to 'connected'. Return BMC modes for connector if no display is attached to the physical DP connector. Otherwise use EDID modes as before. If the status of the physical connector changes, the driver still generates a hotplug event. DRM clients will then reconfigure their output to a mode appropriate for either physical display or BMC. v3: - use struct ast_connector.physical_status to handle BMC Signed-off-by:
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Thomas Zimmermann authored
Remove the CRTC handling in the ASTDP detect_ctx helper and enable power while the detecting the display. Unconditionally wait a few milliseconds after switching power. Simplifies the code and makes it more robust. Signed-off-by:
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Thomas Zimmermann authored
Convert ASTDP support to struct drm_edid and its helpers. Simplifies and modernizes the EDID handling. The driver reads 4 bytes at once, but the overall read length is now variable. Therefore update the EDID read loop to never return more than the requested bytes. The device does not seem to support EDID extensions, as the driver actively clears any such information from the main EDID header. As the new interface allows for reading extension blocks for EDID, make sure that the block is always 0 (i.e., the main header). A later update might fix that. v2: - fix reading if len is not a multiple of 4 Signed-off-by:
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Thomas Zimmermann authored
The modeset mutex protects EDID retrival from concurrent modeset operations. Acquire the lock in ast_astdp_read_edid(). Prepares the code for conversion to struct drm_edid. Signed-off-by:
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Thomas Zimmermann authored
Add struct ast_connector to track a connector's physical status. With the upcoming BMC support, the physical status can be different from the reported status. Signed-off-by:
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Thomas Zimmermann authored
Move the modesetting code for the various transmitter chips into their own source files before adding BMC support. No functional changes. Signed-off-by:
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- 20 Aug, 2024 5 commits
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Tejas Vipin authored
Changes the jdi-fhd-r63452 panel to use multi style functions for improved error handling. Reviewed-by:
Tejas Vipin <tejasvipin76@gmail.com> Signed-off-by:
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Tejas Vipin authored
mipi_dsi_dcs_set_tear_scanline_multi can heavily benefit from being converted to a multi style function as it is often called in the context of similar functions. Reviewed-by:
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Abhishek Tamboli authored
Add detail comments for registers definitions in struct ili9341_config(). Replace TODO with comment for each registers. Signed-off-by:
Abhishek Tamboli <abhishektamboli9@gmail.com> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240819175122.33176-1-abhishektamboli9@gmail.comSigned-off-by:
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Tejas Vipin authored
Converts uppercase hex to lowercase hex for cleanup. Signed-off-by:
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Tejas Vipin authored
Changes the mantix-mlaf057we51 panel to use multi style functions for improved error handling. Reviewed-by:
Guido Günther <agx@sigxcpu.org> Reviewed-by:
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- 19 Aug, 2024 6 commits
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Zhaoxiong Lv authored
Modify the Melfas panel init code to satisfy the gamma value of 2.2 Acked-by:
Jessica Zhang <quic_jesszhan@quicinc.com> Signed-off-by:
Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com> Reviewed-by:
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Zhaoxiong Lv authored
Move the "exit sleep mode" and "set display on" command from enable() to init() function. As mentioned in the patch: https://lore.kernel.org/all/20240624141926.5250-2-lvzhaoxiong@huaqin.corp-partner.google.com/ The Mediatek Soc DSI host has different modes in prepare() and enable() functions, prepare() is in LP mode and enable() is in HS mode. Since the "exit sleep mode" and "set display on" command must also be sent in LP mode, so we also move "exit sleep mode" and "set display on" command to the init() function. We have no other actions in the enable() function after moves "exit sleep mode" and "set display on", and we checked the call of the enable() function during the "startup" process. It seems that only one judgment was made in drm_panel_enabel(). If the panel does not define enable(), the judgment will skip the enable() and continue execution. This does not seem to have any other effect, and we found that some drivers also seem to have no enable() function added, for example: panel-asus-z00t-tm5p5-n35596 / panel-boe-himax8279d... In addition, we briefly tested the kingdisplay_kd101ne3 panel and melfas_lmfbx101117480 panel, and it seems that there is no garbage on the panel, so we delete enable() function. After moving the "exit sleep mode" and "set display on" command to the init() function, we no longer need additional delay judgment, so we delete variables "exit_sleep_to_display_on_delay_ms" and "display_on_delay_ms". Reviewed-by:
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Liu Ying authored
ON Tat Industrial Company KD50G21-40NT-A1 is a 5" WVGA LCD panel with DPI interface. The LCD module specification can be found at: https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdfSigned-off-by:
Liu Ying <victor.liu@nxp.com> Reviewed-by:
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Liu Ying authored
Document On Tat Industrial Company KD50G21-40NT-A1 5" WVGA TFT LCD panel. The LCD module specification can be found at: https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdfSigned-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240816085004.491494-2-victor.liu@nxp.comSigned-off-by:
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Hironori KIKUCHI authored
The Anbernic RG28XX is a handheld gaming device with a 2.8 inch 480x640 display. Add support for the display panel. This panel is driven by a variant of ST7701 driver IC internally, confirmed by dumping and analyzing its BSP initialization sequence by using a logic analyzer. It is very similar to the existing densitron,dmt028vghmcmi-1a panel, but differs in some unknown register values. Besides, it is connected via SPI, so add a new entry for the panel. Signed-off-by:
Hironori KIKUCHI <kikuchan98@gmail.com> Reviewed-by:
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Hironori KIKUCHI authored
The ST7701 supports not only MIPI DSI, but also SPI as an interface for configuration. To support a panel connected via SPI with an RGB parallel interface, add support for SPI using MIPI DBI helpers. Signed-off-by:
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