[PATCH v3 07/10] drm/display: hdmi_state_helper: reject Audio IF updates if it's not supported
From: Dmitry Baryshkov <hidden>
Date: 2025-12-24 01:03:57
Also in:
dri-devel, linux-arm-msm, linux-mediatek, linux-rockchip, linux-sunxi, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Updating the InfoFrame if it can not be sent over the wire makes no sense. Change drm_atomic_helper_connector_hdmi_update_audio_infoframe() and drm_atomic_helper_connector_hdmi_clear_audio_infoframe() to return an error if Audio InfoFrame callbacks are not implemented. Signed-off-by: Dmitry Baryshkov <redacted> --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index 5a3817271d91..e8556bf9e1da 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c@@ -1061,7 +1061,7 @@ drm_atomic_helper_connector_hdmi_update_audio_infoframe(struct drm_connector *co if (!info->is_hdmi) return 0; - if (!funcs) { + if (!funcs || !funcs->audio.write_infoframe) { drm_dbg_kms(connector->dev, "Function not implemented, bailing.\n"); return -EINVAL; }
@@ -1102,7 +1102,7 @@ drm_atomic_helper_connector_hdmi_clear_audio_infoframe(struct drm_connector *con if (!info->is_hdmi) return 0; - if (!funcs) { + if (!funcs || !funcs->audio.write_infoframe) { drm_dbg_kms(connector->dev, "Function not implemented, bailing.\n"); return -EINVAL; }
--
2.47.3