This patch fixes the private_flags of mode to be checked and
compared against uapi.mode and not from hw.mode. This helps
properly trigger modeset at boot if desired by driver.

It helps resolve audio_codec initialization issues if display
is connected at boot. Initial discussion on this issue has happened
on below thread:
https://patchwork.freedesktop.org/series/74828/

v2: No functional change. Fixed the Closes tag and added
Maarten's RB.

v3: Added Fixes tag.

Cc: Ville Syrjä <ville.syrj...@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Cc: Kai Vehmanen <kai.vehma...@linux.intel.com>
Cc: Souza, Jose <jose.so...@intel.com>
Fixes: 58d124ea2739 ("drm/i915: Complete crtc hw/uapi split, v6.")
Closes: https://gitlab.freedesktop.org/drm/intel/issues/1363
Suggested-by: Ville Syrjä <ville.syrj...@linux.intel.com>
Signed-off-by: Uma Shankar <uma.shan...@intel.com>
Signed-off-by: SweeAun Khor <swee.aun.k...@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index fe55c7c713f1..e630429af2c0 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -14747,8 +14747,8 @@ static int intel_atomic_check(struct drm_device *dev,
        /* Catch I915_MODE_FLAG_INHERITED */
        for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
                                            new_crtc_state, i) {
-               if (new_crtc_state->hw.mode.private_flags !=
-                   old_crtc_state->hw.mode.private_flags)
+               if (new_crtc_state->uapi.mode.private_flags !=
+                   old_crtc_state->uapi.mode.private_flags)
                        new_crtc_state->uapi.mode_changed = true;
        }
 
-- 
2.22.0

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