drm/mediatek: Support 180 degree rotation

atseanpaul · ckhu-mediatek · commit df4444577118 · 2019-11-06T16:00:45.000+08:00
Now that we support both reflections, we can expose 180 degree rotation
and rely on the simplify routine to convert that into REFLECT_X |
REFLECT_Y

Signed-off-by: Sean Paul &lt;seanpaul@chromium.org&gt;
Signed-off-by: CK Hu &lt;ck.hu@mediatek.com&gt;
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -143,8 +143,8 @@ static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
 
 static unsigned int mtk_ovl_supported_rotations(struct mtk_ddp_comp *comp)
 {
-	return DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y |
-	       DRM_MODE_REFLECT_X;
+	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
+	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
 }
 
 static int mtk_ovl_layer_check(struct mtk_ddp_comp *comp, unsigned int idx,

Original file line number	Diff line number	Diff line change
`@@ -143,8 +143,8 @@ static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)`
`143`	`143`
`144`	`144`	`static unsigned int mtk_ovl_supported_rotations(struct mtk_ddp_comp *comp)`
`145`	`145`	`{`
`146`		`- return DRM_MODE_ROTATE_0 \| DRM_MODE_REFLECT_Y \|`
`147`		`- DRM_MODE_REFLECT_X;`
	`146`	`+ return DRM_MODE_ROTATE_0 \| DRM_MODE_ROTATE_180 \|`
	`147`	`+ DRM_MODE_REFLECT_X \| DRM_MODE_REFLECT_Y;`
`148`	`148`	`}`
`149`	`149`
`150`	`150`	`static int mtk_ovl_layer_check(struct mtk_ddp_comp *comp, unsigned int idx,`