[PATCH v2 1/7] drm/connector: hdmi: Evaluate limited range after computing format

Cristian Ciocaltea
2025-03-11T10:58:01Z

Evaluating the requirement to use a limited RGB quantization range
involves a verification of the output format, among others, but this is
currently performed before actually computing the format, hence relying
on the old connector state.

Move the call to hdmi_is_limited_range() after hdmi_compute_config() to
ensure the verification is done on the updated output format.

Fixes: 027d43590649 ("drm/connector: hdmi: Add RGB Quantization Range to the connector state")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
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 c205f37da1e12b11c384670db83e43613e031340..6bc96d5d1ab9115989e208d9899e16cd22254fb6 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
@@ -506,12 +506,12 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector,
if (!new_conn_state->crtc || !new_conn_state->best_encoder)
return 0;

- new_conn_state->hdmi.is_limited_range = hdmi_is_limited_range(connector, new_conn_state);
-
ret = hdmi_compute_config(connector, new_conn_state, mode);
if (ret)
return ret;

+ new_conn_state->hdmi.is_limited_range = hdmi_is_limited_range(connector, new_conn_state);
+
ret = hdmi_generate_infoframes(connector, new_conn_state);
if (ret)
return ret;

--
2.48.1