drm/vc4: Drop WARN for HVS FIFOs not being empty

The reset condition for the EMPTY flag in DISPSTATx is 0, so seeing as we've just reset the pipeline there is no guarantee that the flag will denote empty if it hasn't been enabled. Drop the WARN. Signed-off-by: Dave Stevenson <[email protected]>
raspberrypi · Oct 26, 2023 · 2d65ae4 · 2d65ae4
1 parent 77f030b
commit 2d65ae4
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -1005,10 +1005,6 @@ static void __vc4_hvs_stop_channel(struct vc4_hvs *hvs, unsigned int chan)
 				   SCALER_DISPSTATX_MODE) !=
 		     SCALER_DISPSTATX_MODE_DISABLED);
 
-	WARN_ON_ONCE((HVS_READ(SCALER_DISPSTATX(chan)) &
-		      (SCALER_DISPSTATX_FULL | SCALER_DISPSTATX_EMPTY)) !=
-		     SCALER_DISPSTATX_EMPTY);
-
 out:
 	drm_dev_exit(idx);
 }