[PATCH] drm/connector: Allow clearing hdr infoframe

[Derek Foreman]

When a display isn't presenting HDR content, the infoframe shouldn't be
present at all. Currently if we set the HDR_OUTPUT_METADATA blob, we'll
set a Dynamic Range and Mastering (DRM) infoframe. If we remove that
blob later, the DRM infoframe will linger in its previous state, when
we expect it to clear.

Disable the infoframe when no output metadata is present to prevent
this from happening.

Fixes: f378b77227bc4 ("drm/connector: hdmi: Add Infoframes generation")
Signed-off-by: Derek Foreman <derek.foreman at collabora.com>
---
 drivers/gpu/drm/display/drm_hdmi_state_helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index feb7a3a75981..1cc4b49b1013 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
@@ -398,6 +398,8 @@ static int hdmi_generate_hdr_infoframe(const struct drm_connector *connector,
 		&infoframe->data.drm;
 	int ret;
 
+	infoframe->set = false;
+
 	if (connector->max_bpc < 10)
 		return 0;
 
-- 
2.45.2