Re: [PATCH AUTOSEL 6.9 11/22] drm/amd/display: Reset freesync config before update new state

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Hi Sasha,

On 7/16/24 10:24, Sasha Levin wrote:
From: Tom Chung <chiahsuan.chung@xxxxxxx>

[ Upstream commit 6b8487cdf9fc7bae707519ac5b5daeca18d1e85b ]

[Why]
Sometimes the new_crtc_state->vrr_infopacket did not sync up with the
current state.
It will affect the update_freesync_state_on_stream() does not update
the state correctly.

[How]
Reset the freesync config before get_freesync_config_for_crtc() to
make sure we have the correct new_crtc_state for VRR.

Please drop this patch from the stable queue entirely, since it has
already been reverted (as of commit dc1000bf463d ("Revert
"drm/amd/display: Reset freesync config before update new state"")).


Reviewed-by: Sun peng Li <sunpeng.li@xxxxxxx>
Signed-off-by: Jerry Zuo <jerry.zuo@xxxxxxx>
Signed-off-by: Tom Chung <chiahsuan.chung@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index f866a02f4f489..53a55270998cc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10028,6 +10028,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
  	}
/* Update Freesync settings. */
+	reset_freesync_config_for_crtc(dm_new_crtc_state);
  	get_freesync_config_for_crtc(dm_new_crtc_state,
  				     dm_new_conn_state);
--
Hamza




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