drm/bridge: Introduce LT8912B DSI to HDMI bridge

Lontium LT8912B is a DSI to HDMI bridge. Reported-by: kernel test robot <[email protected]> Signed-off-by: Adrien Grassein <[email protected]> Reviewed-by: Robert Foss <[email protected]> Signed-off-by: Robert Foss <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
CachyOS · Mar 26, 2021 · 30e2ae9 · 30e2ae9
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diff --git a/MAINTAINERS b/MAINTAINERS
@@ -10479,6 +10479,7 @@ LONTIUM LT8912B MIPI TO HDMI BRIDGE
 M:	Adrien Grassein <[email protected]>
 S:	Maintained
 F:	Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
+F:	drivers/gpu/drm/bridge/lontium-lt8912b.c
 
 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
 M:	Sathya Prakash <[email protected]>

diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
@@ -61,6 +61,20 @@ config DRM_DISPLAY_CONNECTOR
 	  on ARM-based platforms. Saying Y here when this driver is not needed
 	  will not cause any issue.
 
+config DRM_LONTIUM_LT8912B
+	tristate "Lontium LT8912B DSI/HDMI bridge"
+	depends on OF
+	select DRM_PANEL_BRIDGE
+	select DRM_KMS_HELPER
+	select REGMAP_I2C
+	help
+	  Driver for Lontium LT8912B DSI to HDMI bridge
+	  chip driver.
+	  Please say Y if you have such hardware.
+
+	  Say M here if you want to support this hardware as a module.
+	  The module will be named "lontium-lt8912b".
+
 config DRM_LONTIUM_LT9611
 	tristate "Lontium LT9611 DSI/HDMI bridge"
 	select SND_SOC_HDMI_CODEC if SND_SOC

diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_CDNS_DSI) += cdns-dsi.o
 obj-$(CONFIG_DRM_CHIPONE_ICN6211) += chipone-icn6211.o
 obj-$(CONFIG_DRM_CHRONTEL_CH7033) += chrontel-ch7033.o
 obj-$(CONFIG_DRM_DISPLAY_CONNECTOR) += display-connector.o
+obj-$(CONFIG_DRM_LONTIUM_LT8912B) += lontium-lt8912b.o
 obj-$(CONFIG_DRM_LONTIUM_LT9611) += lontium-lt9611.o
 obj-$(CONFIG_DRM_LONTIUM_LT9611UXC) += lontium-lt9611uxc.o
 obj-$(CONFIG_DRM_LVDS_CODEC) += lvds-codec.o