kernel.git/drivers/gpu/drm/bridge/imx/Kconfig, branch linux-rolling-stable

drm/bridge: imx: add driver for HDMI TX Parallel Audio Interface

2025-09-29T01:46:04Z

The HDMI TX Parallel Audio Interface (HTX_PAI) is a digital module that acts as the bridge between the Audio Subsystem to the HDMI TX Controller. This IP block is found in the HDMI subsystem of the i.MX8MP SoC. Data received from the audio subsystem can have an arbitrary component ordering. The HTX_PAI block has integrated muxing options to select which sections of the 32-bit input data word will be mapped to each IEC60958 field. The HTX_PAI_FIELD_CTRL register contains mux selects to individually select P,C,U,V,Data, and Preamble. Use component helper so that imx8mp-hdmi-tx will be aggregate driver, imx8mp-hdmi-pai will be component driver, then imx8mp-hdmi-pai can use bind() ops to get the plat_data from imx8mp-hdmi-tx device. Signed-off-by: Shengjiu Wang Reviewed-by: Liu Ying Tested-by: Alexander Stein Signed-off-by: Liu Ying Link: https://lore.kernel.org/r/20250923053001.2678596-6-shengjiu.wang@nxp.com

drm/imx: add internal bridge handling display-timings DT node

2024-09-02T23:35:35Z

i.MX DRM DT bindings allow using either a proper panel / bridge graph to provide information about connected panels, or just a display-timings DT node, describing just the timings and the flags. Add helper bridge driver supporting the latter usecase. It will be used by both LDB and parallel-display drivers. Reviewed-by: Philipp Zabel Tested-by: Chris Healy Tested-by: Philipp Zabel # on imx6q-nitrogen6x Link: https://patchwork.freedesktop.org/patch/msgid/20240602-drm-imx-cleanup-v3-9-e549e2a43100@linaro.org Signed-off-by: Dmitry Baryshkov

Revert "drm: Make drivers depends on DRM_DW_HDMI"

2024-05-02T15:59:59Z

This reverts commit c0e0f139354c01e0213204e4a96e7076e5a3e396, as helper code should always be selected by the driver that needs it, for the convenience of the final user configuring a kernel. The user who configures a kernel should not need to know which helpers are needed for the driver he is interested in. Making a driver depend on helper code means that the user needs to know which helpers to enable first, which is very user-unfriendly. Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/bd93d43b07f8ed6368119f4a5ddac2ee80debe53.1713780345.git.geert+renesas@glider.be Signed-off-by: Maxime Ripard

drm/bridge: imx: Fix unmet depenency for PHY_FSL_SAMSUNG_HDMI_PHY

2024-04-25T11:38:51Z

When enabling i.MX8MP DWC HDMI driver, it automatically selects PHY_FSL_SAMSUNG_HDMI_PHY, since it wont' work without the phy. This may cause some Kconfig warnings during various build tests. Fix this by implying the phy instead of selecting the phy. To prevent this from happening with the DRM_IMX8MP_HDMI_PVI, also imply it instead of selecting it. Fixes: 1f36d634670d ("drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202404190103.lLm8LtuP-lkp@intel.com/ Signed-off-by: Adam Ford Reviewed-by: Laurent Pinchart Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20240422103352.8886-1-aford173@gmail.com

drm: Make drivers depends on DRM_DW_HDMI

2024-03-28T10:26:49Z

DRM_DW_HDMI has a number of dependencies that might not be enabled. However, drivers were used to selecting it while not enforcing the DRM_DW_HDMI dependencies. This could result in Kconfig warnings (and further build breakages) such as: Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for DRM_DW_HDMI Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && DRM_BRIDGE [=y] && DRM_DISPLAY_HELPER [=n] Selected by [m]: - DRM_SUN8I_DW_HDMI [=m] && HAS_IOMEM [=y] && DRM_SUN4I [=m] Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202403262127.kZkttfNz-lkp@intel.com/ Acked-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-7-eafee11b84b3@kernel.org Signed-off-by: Maxime Ripard

drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI

2024-02-06T08:05:56Z

Add a simple wrapper driver for the DWC HDMI bridge driver that implements the few bits that are necessary to abstract the i.MX8MP SoC integration. Signed-off-by: Lucas Stach Reviewed-by: Laurent Pinchart Tested-by: Marek Vasut Tested-by: Adam Ford #imx8mp-beacon Tested-by: Richard Leitner Tested-by: Frieder Schrempf Tested-by: Luca Ceresoli Signed-off-by: Adam Ford Link: https://lore.kernel.org/r/20240203165307.7806-11-aford173@gmail.com Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240203165307.7806-11-aford173@gmail.com

drm/bridge: imx: add driver for HDMI TX Parallel Video Interface

2024-02-05T11:16:44Z

This IP block is found in the HDMI subsystem of the i.MX8MP SoC. It has a full timing generator and can switch between different video sources. On the i.MX8MP however the only supported source is the LCDIF. The block just needs to be powered up and told about the polarity of the video sync signals to act in bypass mode. Signed-off-by: Lucas Stach Reviewed-by: Luca Ceresoli Tested-by: Marek Vasut Tested-by: Luca Ceresoli Tested-by: Richard Leitner Tested-by: Frieder Schrempf Reviewed-by: Laurent Pinchart Reviewed-by: Luca Ceresoli Tested-by: Luca Ceresoli Tested-by: Fabio Estevam Signed-off-by: Adam Ford Link: https://lore.kernel.org/r/20240203165307.7806-9-aford173@gmail.com Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240203165307.7806-9-aford173@gmail.com

drm/bridge: imx: Add i.MX93 MIPI DSI support

2023-10-16T09:38:47Z

Freescale i.MX93 SoC embeds a Synopsys Designware MIPI DSI host controller and a Synopsys Designware MIPI DPHY. Some configurations and extensions to them are controlled by i.MX93 media blk-ctrl. Add a DRM bridge for i.MX93 MIPI DSI by using existing DW MIPI DSI bridge helpers and implementing i.MX93 MIPI DSI specific extensions. Signed-off-by: Liu Ying Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20230821034008.3876938-10-victor.liu@nxp.com

drm/bridge: imx: fix mixed module-builtin object

2023-06-05T13:59:00Z

With CONFIG_DRM_IMX8QM_LDB=m and CONFIG_DRM_IMX8QXP_LDB=y (or vice versa), imx-ldb-helper.o is linked to a module and also to vmlinux even though the expected CFLAGS are different between builtins and modules. This is the same situation as fixed by commit 637a642f5ca5 ("zstd: Fixing mixed module-builtin objects"). Split imx-ldb-helper.c into a separate module. Signed-off-by: Masahiro Yamada Reviewed-by: Laurent Pinchart Reviewed-by: Liu Ying Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20230605120021.1774711-1-masahiroy@kernel.org

drm/bridge: imx: i.MX8 bridge drivers should depend on ARCH_MXC

2022-07-01T08:26:38Z

The various Freescale i.MX8 display bridges are only present on Freescale i.MX8 SoCs. Hence add a dependency on ARCH_MXC, to prevent asking the user about these drivers when configuring a kernel without i.MX SoC support. Fixes: e60c4354840b2fe8 ("drm/bridge: imx: Add LDB support for i.MX8qm") Fixes: 3818715f62b42b5c ("drm/bridge: imx: Add LDB support for i.MX8qxp") Fixes: 96988a526c97cfbe ("drm/bridge: imx: Add i.MX8qxp pixel link to DPI support") Fixes: 1ec17c26bc06289d ("drm/bridge: imx: Add i.MX8qm/qxp display pixel link support") Fixes: 93e163a9e0392aca ("drm/bridge: imx: Add i.MX8qm/qxp pixel combiner support") Signed-off-by: Geert Uytterhoeven Reviewed-by: Liu Ying Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/42c542b53a1c8027b23a045045fbb7b34479913d.1656072500.git.geert+renesas@glider.be