Register content protect property in drm so that bridge can update the property from userspace request. HDCP property needs to be created after the connecter is initialized and before the connector is registered. Since some bridge may be attached without connector, register this property in drm driver if CONFIG_DRM_DISPLAY_HDCP_HELPER is defined. Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> --- Context: https://lore.kernel.org/lkml/20221012042030.573466-1-hsinyi@xxxxxxxxxxxx/T/ --- drivers/gpu/drm/mediatek/mtk_dpi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 508a6d994e831..3374ebe82aeb2 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -18,6 +18,7 @@ #include <video/videomode.h> +#include <drm/display/drm_hdcp_helper.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_bridge_connector.h> @@ -799,6 +800,15 @@ static int mtk_dpi_bind(struct device *dev, struct device *master, void *data) ret = PTR_ERR(dpi->connector); goto err_cleanup; } + +#if defined(CONFIG_DRM_DISPLAY_HDCP_HELPER) + ret = drm_connector_attach_content_protection_property(dpi->connector, true); + if (ret) { + dev_err(dev, "attach content protection: %d\n", ret); + return ret; + } +#endif + drm_connector_attach_encoder(dpi->connector, &dpi->encoder); return 0; -- 2.38.0.413.g74048e4d9e-goog
