drm: apple: Force colour management changes on CRTC enable

chadmed · jannau · commit 949b452d4455 · 2026-03-03T23:02:20.000+01:00
Signed-off-by: James Calligeros &lt;jcalligeros99@gmail.com&gt;
diff --git a/drivers/gpu/drm/apple/apple_drv.c b/drivers/gpu/drm/apple/apple_drv.c
@@ -111,8 +111,11 @@ static void apple_crtc_atomic_enable(struct drm_crtc *crtc,
 		dcp_poweron(apple_crtc->dcp);
 	}
 
-	if (crtc_state->active)
+	if (crtc_state->active) {
+		/* Force the CTM to be set on first swap */
+		crtc_state->color_mgmt_changed = true;
 		dcp_crtc_atomic_modeset(crtc, state);
+	}
 }
 
 static void apple_crtc_atomic_disable(struct drm_crtc *crtc,

Original file line number	Diff line number	Diff line change
`@@ -111,8 +111,11 @@ static void apple_crtc_atomic_enable(struct drm_crtc *crtc,`
`111`	`111`	`dcp_poweron(apple_crtc->dcp);`
`112`	`112`	`}`
`113`	`113`
`114`		`- if (crtc_state->active)`
	`114`	`+ if (crtc_state->active) {`
	`115`	`+ /* Force the CTM to be set on first swap */`
	`116`	`+ crtc_state->color_mgmt_changed = true;`
`115`	`117`	`dcp_crtc_atomic_modeset(crtc, state);`
	`118`	`+ }`
`116`	`119`	`}`
`117`	`120`
`118`	`121`	`static void apple_crtc_atomic_disable(struct drm_crtc *crtc,`