linux/drivers/gpu/drm/bridge/Kconfig, branch master

drm/bridge: lt8713sx select CONFIG_CRC8

2026-03-25T02:25:25Z

CRC8 needs to be enabled for lt8713sx to build: ld.lld-22: error: undefined symbol: crc8_populate_msb >>> referenced by lontium-lt8713sx.c >>> drivers/gpu/drm/bridge/lontium-lt8713sx.o:(lt8713sx_probe) in archive vmlinux.a Fixes: 4037c6adc1f9 ("drm/bridge: add support for lontium lt8713sx bridge driver") Signed-off-by: Arnd Bergmann Reviewed-by: Dmitry Baryshkov Link: https://patch.msgid.link/20260318105130.1969966-1-arnd@kernel.org Signed-off-by: Dmitry Baryshkov

drm/bridge: add support for lontium lt8713sx bridge driver

2026-03-14T01:49:43Z

The lt8713sx is a Type-C/DP1.4 to DP1.4/HDMI2.0 converter, with three configurable DP1.4/HDMI2.0/DP++ output interfaces and audio output interface. Driver is required for firmware upgrade and enabling the bridge chip. Co-developed-by: Prahlad Valluru Signed-off-by: Prahlad Valluru Signed-off-by: Vishnu Saini Reviewed-by: Dmitry Baryshkov Cc: Simon Zhu Link: https://patch.msgid.link/20260303-lt8713sx-bridge-driver-v5-2-6cc2a855aafa@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov

drm/bridge: add a driver for T-Head TH1520 HDMI controller

2026-02-05T08:50:30Z

T-Head TH1520 SoC contains a Synopsys DesignWare HDMI controller (paired with DesignWare HDMI TX PHY Gen2) that takes the "DP" output from the display controller. Add a driver for this controller utilizing the common DesignWare HDMI code in the kernel. Signed-off-by: Icenowy Zheng Signed-off-by: Icenowy Zheng Tested-by: Han Gao Tested-by: Michal Wilczynski Acked-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patch.msgid.link/20260129023922.1527729-6-zhengxingda@iscas.ac.cn

drm/rockchip: inno-hdmi: Convert to drm bridge

2025-12-24T22:30:33Z

Convert it to drm bridge driver, it will be convenient for us to migrate the connector part to the display driver later. Signed-off-by: Andy Yan Reviewed-by: Dmitry Baryshkov Reviewed-by: Heiko Stuebner Link: https://patch.msgid.link/20251016083843.76675-2-andyshrk@163.com Signed-off-by: Dmitry Baryshkov

drm/bridge: it6505: Use SHA-1 library instead of crypto_shash

2025-09-04T03:27:45Z

Instead of using the "sha1" crypto_shash, simply call the sha1() library function. This is simpler and faster. Signed-off-by: Eric Biggers Reviewed-by: Chen-Yu Tsai Link: https://patch.msgid.link/20250821175613.14717-1-ebiggers@kernel.org Signed-off-by: Chen-Yu Tsai

drm/bridge: it6505: select REGMAP_I2C

2025-08-12T05:00:42Z

Fix aarch64-linux-gnu-ld: drivers/gpu/drm/bridge/ite-it6505.o: in function `it6505_i2c_probe': ite-it6505.c:(.text+0x754): undefined reference to `__devm_regmap_init_i2c' Signed-off-by: Chia-I Wu Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver") Reviewed-by: Chen-Yu Tsai Link: https://patch.msgid.link/20250610235825.3113075-1-olvaffe@gmail.com Signed-off-by: Chen-Yu Tsai

drm: bridge: Add waveshare DSI2DPI unit driver

2025-08-06T06:49:33Z

Waveshare touchscreen consists of a DPI panel and a driver board. The waveshare driver board consists of ICN6211 and a MCU to convert DSI to DPI and control the backlight. This driver treats the MCU and ICN6211 board as a whole unit. It can support all resolution waveshare DSI2DPI based panel, the timing table should come from 'panel-dpi' panel in the device tree. Signed-off-by: Joseph Guo Suggested-by: Liu Ying Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250806-waveshare-v3-3-fd28e01f064f@nxp.com

drm: bridge: Add support for Solomon SSD2825 RGB/DSI bridge

2025-07-30T21:21:31Z

SSD2825 is a cost-effective MIPI Bridge Chip solution targeting mainly smartphones. It can convert 24bit RGB interface into 4-lane MIPI-DSI interface to drive display modules of up to 800 x 1366, while supporting AMOLED, a-si LCD or LTPS panel technologies for smartphone applications. Signed-off-by: Svyatoslav Ryhel Reviewed-by: Dmitry Baryshkov Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20250730055424.6718-3-clamor95@gmail.com Signed-off-by: Dmitry Baryshkov

drm/bridge: select DRM_KMS_HELPER for AUX_BRIDGE

2025-04-16T22:47:21Z

The aux bridge uses devm_drm_of_get_bridge() from the panel bridge (and correctly selects DRM_PANEL_BRIDGE). However panel bridge is not a separate module, it is compiled into the drm_kms_helper.o. Select DRM_KMS_HELPER too to express this dependency. Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20250411-aux-select-kms-v1-1-c4276f905a56@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov

drm/i2c: tda998x: select CONFIG_DRM_KMS_HELPER

2025-03-30T18:02:06Z

This fails to build without the KMS helper functions: x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o: in function `tda998x_detect_work': tda998x_drv.c:(.text+0x4e6): undefined reference to `drm_kms_helper_hotplug_event' x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o: in function `tda998x_bind': tda998x_drv.c:(.text.unlikely+0x33): undefined reference to `drm_simple_encoder_init' x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x584): undefined reference to `drm_atomic_helper_connector_reset' x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x590): undefined reference to `drm_helper_probe_single_connector_modes' x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x5a4): undefined reference to `drm_atomic_helper_connector_duplicate_state' x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x5a8): undefined reference to `drm_atomic_helper_connector_destroy_state' Select the missing symbol and fix up the broken whitespace. Fixes: 325ba852d148 ("drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge") Signed-off-by: Arnd Bergmann Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20250324210824.3094660-1-arnd@kernel.org Signed-off-by: Dmitry Baryshkov