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2025-05-05drm/bridge: anx7625: fix drm_bridge ops flags to support hot-pluggingAyushi Makhija1-3/+2
The anx7625_link_bridge() checks if a device is not a panel bridge and add DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT flags to the drm_bridge->ops. However, on port 1 of the anx7625 bridge, any device added is always treated as a panel bridge, preventing connector_detect() from being called. To resolve this, instead of just checking if it is a panel bridge, verify the type of device based on aux whether it is a DisplayPort or eDP panel. If the device is not of the eDP type, add DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT flags to the to the drm_bridge->ops. Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250505094245.2660750-5-quic_amakhija@quicinc.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-05drm/bridge: anx7625: enable HPD interruptsAyushi Makhija1-0/+18
When the device enters the suspend state, it prevents HPD interrupts from occurring. To address this, implement .hpd_enable() and .hpd_disable() callbacks functions of the drm_bridge. Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250505094245.2660750-4-quic_amakhija@quicinc.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-05drivers: gpu: drm: panel: Add BOE TD4320Barnabás Czémán3-0/+257
Add driver for BOE TD4320 DSI panel, used in Xiaomi Redmi Note 7 mobile phone. Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-2-7625e62d62b2@mainlining.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-2-7625e62d62b2@mainlining.org
2025-05-05dt-bindings: display: panel: Add BOE TD4320Barnabás Czémán1-0/+65
Document BOE TD4320 6.3" 2340x1080 panel found in Xiaomi Redmi Note 7 smartphone. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org> Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-1-7625e62d62b2@mainlining.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250430-lavender-panel-v3-1-7625e62d62b2@mainlining.org
2025-05-04drm/rockchip: inno-hdmi: Fix video timing HSYNC/VSYNC polarity setting for ↵Andy Yan1-1/+35
rk3036 The HSYNC/VSYNC polarity of rk3036 HDMI are controlled by GRF. Without the polarity configuration in GRF, it can be observed from the HDMI protocol analyzer that the H/V front/back timing output by RK3036 HDMI are currently not in line with the specifications. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3036-kylin Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250422070455.432666-5-andyshrk@163.com
2025-05-04drm/rockchip: inno-hdmi: Simplify error handler with dev_err_probeAndy Yan1-13/+6
Use dev_err_probe simplify the error handle. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3036-kylin Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250422070455.432666-4-andyshrk@163.com
2025-05-04dt-bindings: display: rockchip,inno-hdmi: Document GRF for RK3036 HDMIAndy Yan1-0/+9
HDMI on RK3036 use GRF control the HSYNC/VSYNC polarity, but this part is missing when it first landing upstream. Document that it is mandatory for RK3036 HDMI. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250422070455.432666-3-andyshrk@163.com
2025-05-04dt-bindings: display: rockchip,inno-hdmi: Fix Document of RK3036 compatibleAndy Yan1-9/+2
The RK3036 HDMI DDC bus requires it's PHY's reference clock to be enabled first before normal DDC communication can be carried out. Therefore, both RK3036 and RK3128 HDMI require two identical clocks. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250422070455.432666-2-andyshrk@163.com
2025-05-04drm/rockchip: rk3066_hdmi: switch to drm bridgeAndy Yan1-169/+146
Convert it to drm bridge driver, it will be convenient for us to migrate the connector part to the display driver later. Note: I don't have the hardware to test this driver, so for now I can only do the compilation test. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Tested-by: Heiko Stuebner <heiko@sntech.de> #rk3066-marsboard Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250428102309.1501986-1-andyshrk@163.com
2025-05-03dt-bindings: display: ltk500hd1829: add port propertyHeiko Stuebner1-0/+1
The panel can be connected to via graph nodes, so allow the port property. Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250430082850.244199-3-heiko@sntech.de Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-03dt-bindings: display: ltk050h3146w: add port propertyHeiko Stuebner1-0/+1
The panel can be connected to via graph nodes, so allow the port property. This fixes dtc checker warnings like: >> arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou-haikou-video-demo.dtb: panel@0 (leadtek,ltk050h3148w): 'port' does not match any of the regexes: 'pinctrl-[0-9]+' from schema $id: http://devicetree.org/schemas/display/panel/leadtek,ltk050h3146w.yaml# arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou-haikou-video-demo.dtb: /edp@fdec0000: failed to match any schema with compatible: ['rockchip,rk3588-edp'] Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202504300218.VDqQqGTT-lkp@intel.com/ Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20250430082850.244199-2-heiko@sntech.de Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-05-03drm/gpusvm: remove unused pages pointerDafna Hirschfeld1-4/+0
The pages pointer is not used, remove it. Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250422095943.1198393-1-dafna.hirschfeld@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-02drm/panic: Use a decimal fifo to avoid u64 by u64 divideJocelyn Falempe1-23/+48
On 32bits ARM, u64/u64 is not supported [1], so change the algorithm to use a simple fifo with decimal digits as u8 instead. This is slower but should compile on all architecture. Link: https://lore.kernel.org/dri-devel/CANiq72ke45eOwckMhWHvmwxc03dxr4rnxxKvx+HvWdBLopZfrQ@mail.gmail.com/ [1] Reported-by: Miguel Ojeda <ojeda@kernel.org> Closes: https://lore.kernel.org/dri-devel/CANiq72ke45eOwckMhWHvmwxc03dxr4rnxxKvx+HvWdBLopZfrQ@mail.gmail.com/ Fixes: ccb8ce526807 ("ARM: 9441/1: rust: Enable Rust support for ARMv7") Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://lore.kernel.org/r/20250418165059.560503-1-jfalempe@redhat.com Acked-by: Javier Martinez Canillas <javierm@redhat.com>
2025-05-02drm: Remove unused function rcar_cmm_writeJiapeng Chong1-5/+0
The function are defined in the rcar_cmm.c file, but not called elsewhere, so delete the unused function. drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c:35:19: warning: unused function 'rcar_cmm_read'. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9364 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20240619075436.86407-1-jiapeng.chong@linux.alibaba.com Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
2025-05-02drm: rcar-du: Fix memory leak in rcar_du_vsps_init()Biju Das1-6/+4
The rcar_du_vsps_init() doesn't free the np allocated by of_parse_phandle_with_fixed_args() for the non-error case. Fix memory leak for the non-error case. While at it, replace the label 'error'->'done' as it applies to non-error case as well and update the error check condition for rcar_du_vsp_init() to avoid breakage in future, if it returns positive value. Fixes: 3e81374e2014 ("drm: rcar-du: Support multiple sources from the same VSP") Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20231116122424.80136-1-biju.das.jz@bp.renesas.com Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
2025-05-01drm/rockchip: add CONFIG_OF dependencyArnd Bergmann1-0/+1
DRM_DISPLAY_DP_AUX_BUS cannot be selected when CONFIG_OF is disabled: WARNING: unmet direct dependencies detected for DRM_DISPLAY_DP_AUX_BUS Depends on [n]: HAS_IOMEM [=y] && DRM [=y] && OF [=n] Selected by [y]: - DRM_ROCKCHIP [=y] && HAS_IOMEM [=y] && DRM [=y] && ROCKCHIP_IOMMU [=y] && ROCKCHIP_ANALOGIX_DP [=y] Rockchip platforms all depend on OF anyway, so add the dependency here for compile testing. Fixes: d7b4936b2bc0 ("drm/rockchip: analogix_dp: Add support to get panel from the DP AUX bus") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Acked-by: Andy Yan <andy.yan@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250423164422.2793634-1-arnd@kernel.org
2025-05-01drm/doc: document front-buffer renderingPekka Paalanen1-0/+6
Explain how to perform front-buffer rendering. v2: apply Pekka's rewrite Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Simon Ser <contact@emersion.fr> Link: https://lore.kernel.org/r/20250414085652.43904-1-contact@emersion.fr
2025-04-30drm/st7571-i2c: Fix IS_ERR() vs NULL checks in probe()Dan Carpenter1-6/+4
The devm_kzalloc() function returns NULL on failure, not error pointers. Also printing an error message for kmalloc() failures is against kernel style so just return -ENOMEM without printing a message. (Kmalloc already prints a message). Fixes: 4b35f0f41ee2 ("drm/st7571-i2c: add support for Sitronix ST7571 LCD controller") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/aBHZYgPPPYY-J8Vd@stanley.mountain Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2025-04-29drm/panel-edp: Add support for CSW MNE007QS3-8 panelZhengqiao Xia1-0/+8
CSW MNE007QS3-8 EDID: edid-decode (hex): 00 ff ff ff ff ff ff 00 0e 77 57 14 00 00 00 00 34 22 01 04 a5 1e 13 78 07 ee 95 a3 54 4c 99 26 0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 cd 7c 80 a0 70 b0 50 40 30 20 26 04 2e bc 10 00 00 1a cd 7c 80 a0 70 b0 50 45 30 20 26 04 2e bc 10 00 00 1a 00 00 00 fd 00 1e 78 9a 9a 20 01 0a 20 20 20 20 20 20 00 00 00 fc 00 4d 4e 45 30 30 37 51 53 33 2d 38 0a 20 01 3f 70 20 79 02 00 21 00 1d c8 0b 5d 07 80 07 b0 04 80 3d 8a 54 cd a4 99 66 62 0f 02 45 54 7c 5d 7c 5d 00 43 12 78 2b 00 0c 27 00 1e 77 00 00 27 00 1e 3b 00 00 2e 00 06 00 43 7c 5d 7c 5d 81 00 20 74 1a 00 00 03 01 1e 78 00 00 5a ff 5a ff 78 00 00 00 00 8d 00 e3 05 04 00 e6 06 01 01 5a 5a ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 76 90 Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250429092030.8025-4-xiazhengqiao@huaqin.corp-partner.google.com
2025-04-29drm/panel-edp: Add support for BOE NE140WUM-N6S panelZhengqiao Xia1-0/+1
BOE NE140WUM-N6S EDID: edid-decode (hex): 00 ff ff ff ff ff ff 00 09 e5 73 0d 00 00 00 00 32 22 01 04 a5 1e 13 78 07 13 45 a6 54 4d a0 27 0c 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 03 3e 80 a0 70 b0 48 40 30 20 36 00 2e bc 10 00 00 1a 00 00 00 fd 00 1e 78 99 99 20 01 0a 20 20 20 20 20 20 00 00 00 fc 00 4e 45 31 34 30 57 55 4d 2d 4e 36 53 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 45 70 20 79 02 00 22 00 14 33 d8 04 85 7f 07 9f 00 2f 00 1f 00 af 04 47 00 02 00 05 00 81 00 13 72 1a 00 00 03 01 1e 78 00 00 5a 4a 5a 4a 78 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ad 90 Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250429092030.8025-3-xiazhengqiao@huaqin.corp-partner.google.com
2025-04-29drm/panel-edp: Add support for AUO B140QAN08.H panelZhengqiao Xia1-0/+1
AUO B140QAN08.H EDID: edid-decode (hex): 00 ff ff ff ff ff ff 00 06 af b9 fe 00 00 00 00 00 23 01 04 a5 1e 13 78 03 c1 45 a8 55 48 9d 24 0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 18 86 40 a0 b0 08 52 70 30 20 65 00 2d bc 10 00 00 18 00 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 fd 00 28 3c 71 71 22 01 0a 20 20 20 20 20 20 00 00 00 fc 00 42 31 34 30 51 41 4e 30 38 2e 48 20 0a 01 79 70 20 79 02 00 21 01 1d c2 0b 58 07 40 0b 08 07 88 8b fa 54 7e 24 9d 45 12 0f 02 35 54 40 5e 40 5e 00 44 12 78 22 00 14 ef 3c 05 85 3f 0b 9f 00 2f 80 1f 00 07 07 51 00 05 00 04 00 25 01 09 ef 3c 05 ef 3c 05 28 3c 80 2e 00 06 00 44 40 5e 40 5e 81 00 15 74 1a 00 00 03 00 28 3c 00 00 60 ff 60 ff 3c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4f 90 Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20250429092030.8025-2-xiazhengqiao@huaqin.corp-partner.google.com
2025-04-29drm/panthor: Fix build warning when DEBUG_FS is disabledAdrián Larumbe2-8/+5
Commit a3707f53eb3f ("drm/panthor: show device-wide list of DRM GEM objects over DebugFS") causes a build warning and linking error when built without support for DebugFS, because of a non-inline non-static function declaration in a header file. On top of that, the function is only being used inside a single compilation unit, so there is no point in exposing it as a global symbol. This is a follow-up from Arnd Bergmann's first fix. Also move panthor_gem_debugfs_set_usage_flags() into panthor_gem.c and declare it static. Fixes: a3707f53eb3f ("drm/panthor: show device-wide list of DRM GEM objects over DebugFS") Reported-by: Arnd Bergmann <arnd@arndb.de> Closes: https://lore.kernel.org/dri-devel/20250424142419.47b9d457@collabora.com/T/#t Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Link: https://lore.kernel.org/r/20250424184041.356191-1-adrian.larumbe@collabora.com Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2025-04-29drm/appletbdrm: Make appletbdrm depend on X86Aditya Garg1-0/+1
The appletbdrm driver is exclusively for Touch Bars on x86 Intel Macs. The M1 Macs have a separate driver. So, lets avoid compiling it for other architectures. Signed-off-by: Aditya Garg <gargaditya08@live.com> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Link: https://lore.kernel.org/r/PN3PR01MB95970778982F28E4A3751392B8B72@PN3PR01MB9597.INDPRD01.PROD.OUTLOOK.COM Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2025-04-29vsprintf: Use %p4chR instead of %p4cn for reading data in reversed host orderingPetr Mladek3-10/+15
The generic FourCC format always prints the data using the big endian order. It is generic because it allows to read the data using a custom ordering. The current code uses "n" for reading data in the reverse host ordering. It makes the 4 variants [hnbl] consistent with the generic printing of IPv4 addresses. Unfortunately, it creates confusion on big endian systems. For example, it shows the data &(u32)0x67503030 as %p4cn 00Pg (0x30305067) But people expect that the ordering stays the same. The network ordering is a big-endian ordering. The problem is that the semantic is not the same. The modifiers affect the output ordering of IPv4 addresses while they affect the reading order in case of FourCC code. Avoid the confusion by replacing the "n" modifier with "hR", aka reverse host ordering. It is inspired by the existing %p[mM]R printf format. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Closes: https://lore.kernel.org/r/CAMuHMdV9tX=TG7E_CrSF=2PY206tXf+_yYRuacG48EWEtJLo-Q@mail.gmail.com Signed-off-by: Petr Mladek <pmladek@suse.com> Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Aditya Garg <gargaditya08@live.com> Link: https://lore.kernel.org/r/20250428123132.578771-1-pmladek@suse.com Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2025-04-29drm/st7571-i2c: select CONFIG_DRM_CLIENT_SELECTIONArnd Bergmann1-0/+1
The newly added driver calls drm_client_setup(), but that is not always built in: x86_64-linux-ld: vmlinux.o: in function `st7571_probe': st7571-i2c.c:(.text+0x7b7119): undefined reference to `drm_client_setup' Select the appropriate Kconfig symbol. Fixes: 4b35f0f41ee2 ("drm/st7571-i2c: add support for Sitronix ST7571 LCD controller") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20250428150752.3970145-1-arnd@kernel.org Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2025-04-29drm/bridge: imx8*-ldb: convert to devm_drm_bridge_alloc() APILuca Ceresoli4-23/+36
This is the new API for allocating DRM bridges. These two drivers are tangled together by the ldb_add_bridge_helper(), so they are converted at once. They also have a similar design, each embedding an array of channels in their main struct, and each channel embeds a drm_bridge. This prevents dynamic, refcount-based deallocation of the bridges. To make the new, dynamic bridge allocation possible: * change the array of channels into an array of channel pointers * allocate each channel using devm_drm_bridge_alloc() * adapt ldb_add_bridge_helper() to not set the funcs pointer (now done by devm_drm_bridge_alloc()) * adapt the code wherever using the channels Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Acked-by: Liu Ying <victor.liu@nxp.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-31-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/vc4: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-29/+5
This is the new API for allocating DRM bridges. This driver already implements refcounting of the struct vc4_dsi, which embeds struct drm_bridge. Now this is a duplicate of the refcounting implemented by the DRM bridge core, so convert the vc4_dsi_get/put() calls into drm_bridge_get/put() calls and get rid of the driver-specific refcounting implementation. Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-27-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/msm/hdmi: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-5/+4
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-18-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/msm/dsi: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-5/+4
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-17-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/msm/dp: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+5
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-16-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/mcde: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-15-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/exynos: mic: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-14-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: ti-sn65dsi86: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Reviewed-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-13-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: tda998x: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-12-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: dw-hdmi: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-11-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: lt9611uxc: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-7-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: display-connector: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+4
This is the new API for allocating DRM bridges. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-6-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29drm/bridge: analogix-anx6345: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+4
This is the new API for allocating DRM bridges. Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Andy Yan <andyshrk@163.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-3-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-29platform: arm64: acer-aspire1-ec: convert to devm_drm_bridge_alloc() APILuca Ceresoli1-4/+3
This is the new API for allocating DRM bridges. Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250424-drm-bridge-convert-to-alloc-api-v2-2-8f91a404d86b@bootlin.com Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
2025-04-28drm/panfrost: reorder pd/clk/rst sequencePhilippe Simons1-19/+19
According to Mali manuals, the powerup sequence should be enable pd, asserting the reset then enabling the clock and the reverse for powerdown. Reviewed-by: Steven Price <steven.price@arm.com> Tested-by: John Williams <porschemad911@gmail.com> Signed-off-by: Philippe Simons <simons.philippe@gmail.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://lore.kernel.org/r/20250403055210.54486-4-simons.philippe@gmail.com
2025-04-28drm/panfrost: add h616 compatible stringPhilippe Simons1-0/+8
Tie the Allwinner compatible string to the GPU_PM_RT feature bits that will toggle the clocks and the reset line whenever the power domain is changing state. Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Philippe Simons <simons.philippe@gmail.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://lore.kernel.org/r/20250403055210.54486-3-simons.philippe@gmail.com
2025-04-28drm/panfrost: Add PM runtime flagPhilippe Simons2-0/+36
When the GPU is the only device attached to a single power domain, core genpd disable and enable it when gpu enter and leave runtime suspend. Some power-domain requires a sequence before disabled, and the reverse when enabled. Add GPU_PM_RT flag, and implement in panfrost_device_runtime_suspend/resume. Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Philippe Simons <simons.philippe@gmail.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://lore.kernel.org/r/20250403055210.54486-2-simons.philippe@gmail.com
2025-04-27drm/v3d: client ranges from axi_ids are different with V3D 7.1Jose Maria Casanova Crespo1-1/+22
The client mask has been reduced from 8 bits on V3D 4.1 to 7 bits on V3D 7.1, so the ranges for each client are not compatible. On V3D 7.1, the CSD client can also report MMU errors. Therefore, add its AXI ID to the IDs list. Fixes: 0ad5bc1ce463 ("drm/v3d: fix up register addresses for V3D 7.x") Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20250425122522.18425-2-jmcasanova@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2025-04-27drm/v3d: fix client obtained from axi_ids on V3D 4.1Jose Maria Casanova Crespo1-13/+24
In the case of MMU errors caused by the TFU unit, the client that causes the MMU error is expected to be reported. But in the case of MMU TFU errors, a non existing client was being reported. This happened because the client calculation was taking into account more than the bits 0-7 from the axi_id that were representing the client. [ 27.845132] v3d fec00000.v3d: MMU error from client ? (13) at 0x3bb1000, pte invalid Masking the bits and using the correct axi_id ranges fixes the calculation to report the real guilty client on V3D 4.1 and 4.2. Make the MMU error print axi_id with hexadecimal as used in the ranges. Fixes: 38c2c7917adc ("drm/v3d: Fix and extend MMU error handling.") Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20250425122522.18425-1-jmcasanova@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2025-04-25accel/ivpu: Implement heartbeat-based TDR mechanismKarol Wachowski4-0/+26
Introduce a heartbeat-based Timeout Detection and Recovery (TDR) mechanism. The enhancement aims to improve the reliability of device hang detection by monitoring heartbeat updates. Each progressing inference will update heartbeat counter allowing driver to monitor its progression. Limit maximum number of reschedules when heartbeat indicates progression to 30. This increases the maximum running time of single inference to about 60 seconds. The heartbeat mechanism provides a more robust method for detecting device hangs, potentially reducing false positive recoveries due to long running inferences. Signed-off-by: Karol Wachowski <karol.wachowski@intel.com> Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com> Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Link: https://lore.kernel.org/r/20250416102555.384526-1-maciej.falkowski@linux.intel.com
2025-04-24drm/imagination: Add reset controller support for GPU initializationMichal Wilczynski3-1/+51
All IMG Rogue GPUs include a reset line that participates in the power-up sequence. On some SoCs (e.g., T-Head TH1520 and Banana Pi BPI-F3), this reset line is exposed and must be driven explicitly to ensure proper initialization. On others, such as the currently supported TI SoC, the reset logic is handled in hardware or firmware without exposing the line directly. In platforms where the reset line is externally accessible, if it is not driven correctly, the GPU may remain in an undefined state, leading to instability or performance issues. This commit adds a dedicated reset controller to the drm/imagination driver. By managing the reset line (where applicable) as part of normal GPU bring-up, the driver ensures reliable initialization across platforms regardless of whether the reset is controlled externally or handled internally. Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Reviewed-by: Matt Coster <matt.coster@imgtec.com> Link: https://lore.kernel.org/r/20250418-apr_18_reset_img-v6-2-85a06757b698@samsung.com Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2025-04-24dt-bindings: gpu: Add 'resets' property for GPU initializationMichal Wilczynski1-0/+3
All IMG Rogue GPUs include a reset line that participates in the power-up sequence. On some SoCs (e.g., T-Head TH1520 and Banana Pi BPI-F3), this reset line is exposed and must be driven explicitly to ensure proper initialization. To support this, add a 'resets' property to the GPU device tree bindings. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Reviewed-by: Matt Coster <matt.coster@imgtec.com> Link: https://lore.kernel.org/r/20250418-apr_18_reset_img-v6-1-85a06757b698@samsung.com Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2025-04-24drm/imagination: avoid unused-const-variable warningArnd Bergmann2-6/+4
When CONFIG_DEBUG_FS is disabled, the stid_fmts[] array is not referenced anywhere, causing a W=1 warning with gcc: In file included from drivers/gpu/drm/imagination/pvr_fw_trace.c:7: drivers/gpu/drm/imagination/pvr_rogue_fwif_sf.h:75:39: error: 'stid_fmts' defined but not used [-Werror=unused-const-variable=] 75 | static const struct rogue_km_stid_fmt stid_fmts[] = { | ^~~~~~~~~ Rather than adding more #ifdef blocks, address this by changing the existing #ifdef into equivalent IS_ENABLED() checks so gcc can see where the symbol is used but still eliminate it from the object file. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Matt Coster <matt.coster@imgtec.com> Link: https://lore.kernel.org/r/20250409122314.2848028-1-arnd@kernel.org Signed-off-by: Matt Coster <matt.coster@imgtec.com>
2025-04-24drm/panel: himax-hx8279: Always initialize goa_{even,odd}_valid in ↵Nathan Chancellor1-4/+2
hx8279_check_goa_config() Clang warns (or errors with CONFIG_WERROR=y): drivers/gpu/drm/panel/panel-himax-hx8279.c:838:6: error: variable 'goa_even_valid' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] 838 | if (num_zero == ARRAY_SIZE(desc->goa_even_timing)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/panel/panel-himax-hx8279.c:842:23: note: uninitialized use occurs here 842 | if (goa_odd_valid != goa_even_valid) | ^~~~~~~~~~~~~~ drivers/gpu/drm/panel/panel-himax-hx8279.c:838:2: note: remove the 'if' if its condition is always true 838 | if (num_zero == ARRAY_SIZE(desc->goa_even_timing)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 839 | goa_even_valid = false; drivers/gpu/drm/panel/panel-himax-hx8279.c:818:36: note: initialize the variable 'goa_even_valid' to silence this warning 818 | bool goa_odd_valid, goa_even_valid; | ^ | = 0 Even though only the even valid variable gets flagged, both valid variables appear to have the same issue of possibly being used uninitialized if the if statement initializing them to false is not taken. Turn the if statement then variable assignment into a single variable assignment, which states that the configuration is valid when there are not all zeros, clearing up the warning since the variable will always be initialized. Fixes: 38d42c261389 ("drm: panel: Add driver for Himax HX8279 DDIC panels") Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250423-panel-himax-hx8279-fix-sometimes-uninitialized-v2-1-fc501c6558d9@kernel.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250423-panel-himax-hx8279-fix-sometimes-uninitialized-v2-1-fc501c6558d9@kernel.org
2025-04-23MAINTAINERS: add entry for Sitronix ST7571 LCD ControllerMarcus Folkesson1-0/+6
Add MAINTAINERS entry for the Sitronix ST7571 dot matrix LCD controller. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20250423-st7571-v6-3-e9519e3c4ec4@gmail.com Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-26 22:29:18 +0300