[PATCH 1/9] drm/display: hdmi-state-helpers: warn on unsupported InfoFrame types
From: Dmitry Baryshkov <hidden>
Date: 2025-09-27 01:04:44
Also in:
dri-devel, linux-arm-msm, 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
In preparation to tightening driver control over generated InfoFrames, make sure to warn the user if the driver rejects the InfoFrames on the grounds of it being unsupported. Signed-off-by: Dmitry Baryshkov <redacted> --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index a561f124be99a0cd4259dbacf5f5f6651ff8a0ea..361912de2741939cfb5ec350c08d738a92e2ad37 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c@@ -920,6 +920,8 @@ static int clear_infoframe(struct drm_connector *connector, int ret; ret = clear_device_infoframe(connector, old_frame->data.any.type); + if (ret == -EOPNOTSUPP) + dev_warn_once(it->dev, "unsupported HDMI infoframe 0x%x\n", frame->any.type); if (ret) return ret;
@@ -947,6 +949,8 @@ static int write_device_infoframe(struct drm_connector *connector, return len; ret = funcs->write_infoframe(connector, frame->any.type, buffer, len); + if (ret == -EOPNOTSUPP) + dev_warn_once(it->dev, "unsupported HDMI infoframe 0x%x\n", frame->any.type); if (ret) { drm_dbg_kms(dev, "Call failed: %d\n", ret); return ret;
--
2.47.3