From: Ville Syrjälä ville.syrjala@linux.intel.com
commit 3a84f2c6c9558c554a90ec26ad25df92fc5e05b7 upstream.
intel_crtc_prepare_cleared_state() is unintentionally losing the "inherited" flag. This will happen if intel_initial_commit() is forced to go through the full modeset calculations for whatever reason.
Afterwards the first real commit from userspace will not get forced to the full modeset path, and thus eg. audio state may not get recomputed properly. So if the monitor was already enabled during boot audio will not work until userspace itself does an explicit full modeset.
Cc: stable@vger.kernel.org Tested-by: Lee Shawn C shawn.c.lee@intel.com Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20230223152048.20878-1-ville.s... Reviewed-by: Uma Shankar uma.shankar@intel.com (cherry picked from commit 2553bacaf953b48c59357f5a622282bc0c45adae) Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/i915/display/intel_display.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -13335,6 +13335,7 @@ intel_crtc_prepare_cleared_state(struct * only fields that are know to not cause problems are preserved. */
saved_state->uapi = crtc_state->uapi; + saved_state->inherited = crtc_state->inherited; saved_state->scaler_state = crtc_state->scaler_state; saved_state->shared_dpll = crtc_state->shared_dpll; saved_state->dpll_hw_state = crtc_state->dpll_hw_state;