[PATCH RFC 19/25] drm/connector: hdmi: Add QMS to VTEM EMP generation
From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Date: 2026-09-21 15:54:03
Also in:
dri-devel, linux-fbdev, linux-rockchip, 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
If userspace indicates that QMS is desired, set the QMS related fields in the VTEM EMP struct based on the connector state. Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index 7dbd678cf061..7237070fc9ee 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c@@ -897,7 +897,15 @@ static int hdmi_generate_emp_infoframe_vtem(const struct drm_connector *connecto return 0; } - vtem->game_vrr_en = true; + if (conn_state->hdmi.qms_enabled) { + vtem->game_vrr_en = false; + vtem->qms_en = true; + vtem->next_tfr = conn_state->hdmi.qms_tfr_byte; + } else { + vtem->game_vrr_en = true; + vtem->qms_en = false; + vtem->next_tfr = 0; + } vtem->m_const = !vrr->dynamic;
--
2.55.0