drm/i915/dsi: Respect power_off_delay on icl+

icl+ DSI isn't respecting the panel power_off_delay. Remedy that.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-11-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index ac5f30f..669637b 100644 (file)
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -1292,6 +1292,8 @@ static void gen11_dsi_powerdown_panel(struct intel_encoder *encoder)
 
        intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DISPLAY_OFF);
        intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET);
+
+       msleep(intel_dsi->panel_off_delay);
        intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_OFF);
 
        intel_dsi->panel_power_off_time = ktime_get_boottime();