There isn't a connector type for display controllers accesed through I2C,
most drivers use DRM_MODE_CONNECTOR_Unknown or DRM_MODE_CONNECTOR_VIRTUAL.
Add an I2C connector type to match the actual connector.
As Noralf Trønnes mentions in commit fc06bf1d76d6 ("drm: Add SPI connector
type"), user-space should be able to cope with a connector type that does
not yet understand.
Tested with `modetest -M ssd1307 -c` and shows the connector as unknown-1.
Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---
drivers/gpu/drm/drm_connector.c | 1 +
include/uapi/drm/drm_mode.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index a50c82bc2b2f..975a7525a508 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -105,6 +105,7 @@ static struct drm_conn_prop_enum_list drm_connector_enum_list[] = {
{ DRM_MODE_CONNECTOR_WRITEBACK, "Writeback" },
{ DRM_MODE_CONNECTOR_SPI, "SPI" },
{ DRM_MODE_CONNECTOR_USB, "USB" },
+ { DRM_MODE_CONNECTOR_I2C, "I2C" },
};
void drm_connector_ida_init(void)
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index e1e351682872..d6d6288242db 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -421,6 +421,7 @@ enum drm_mode_subconnector {
#define DRM_MODE_CONNECTOR_WRITEBACK 18
#define DRM_MODE_CONNECTOR_SPI 19
#define DRM_MODE_CONNECTOR_USB 20
+#define DRM_MODE_CONNECTOR_I2C 21
/**
* struct drm_mode_get_connector - Get connector metadata.
--
2.34.1
