[PATCH v4 04/10] drm/bridge: lontium-lt9611: declare supported infoframes
From: Dmitry Baryshkov <hidden>
Date: 2025-09-09 14:52:26
Also in:
dri-devel, linux-arm-msm, linux-rockchip, linux-sunxi, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for bridge chips, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Andrzej Hajda, Neil Armstrong, Robert Foss, Linus Torvalds
Declare which infoframes are supported via the .hdmi_write_infoframe() interface. Return -EOPNOTSUPP if the driver is asked to write or clear the unsupported InfoFrame. Acked-by: Daniel Stone <redacted> Signed-off-by: Dmitry Baryshkov <redacted> --- drivers/gpu/drm/bridge/lontium-lt9611.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
index a2d032ee4744715b88eb66883edf69bab4c274b0..019114eb343764dbc3da36ab02d53ece11f46adc 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c@@ -870,8 +870,7 @@ static int lt9611_hdmi_clear_infoframe(struct drm_bridge *bridge, default: drm_dbg_driver(lt9611->bridge.dev, "Unsupported HDMI InfoFrame %x\n", type); - mask = 0; - break; + return -EOPNOTSUPP; } if (mask)
@@ -911,8 +910,7 @@ static int lt9611_hdmi_write_infoframe(struct drm_bridge *bridge, default: drm_dbg_driver(lt9611->bridge.dev, "Unsupported HDMI InfoFrame %x\n", type); - mask = 0; - break; + return -EOPNOTSUPP; } if (mask) {
@@ -1136,6 +1134,11 @@ static int lt9611_probe(struct i2c_client *client) lt9611->bridge.type = DRM_MODE_CONNECTOR_HDMIA; lt9611->bridge.vendor = "Lontium"; lt9611->bridge.product = "LT9611"; + lt9611->bridge.supported_infoframes = + DRM_CONNECTOR_INFOFRAME_AUDIO | + DRM_CONNECTOR_INFOFRAME_AVI | + DRM_CONNECTOR_INFOFRAME_SPD | + DRM_CONNECTOR_INFOFRAME_VENDOR; lt9611->bridge.hdmi_audio_dev = dev; lt9611->bridge.hdmi_audio_max_i2s_playback_channels = 8; lt9611->bridge.hdmi_audio_dai_port = 2;
--
2.47.3