drm/mediatek: Return error if MDP RDMA failed to enable the clock

Hsiao Chien Sung · Chun-Kuang Hu · commit 21b287146adf · 2023-12-14T14:53:44.000Z
Return the result of clk_prepare_enable() instead of always returns 0. Fixes: f8946e2 ("drm/mediatek: Add display MDP RDMA support for MT8195") Reviewed-by: CK Hu <ck.hu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20231214055847.4936-21-shawn.sung@mediatek.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
@@ -262,8 +262,7 @@ int mtk_mdp_rdma_clk_enable(struct device *dev)
 {
 	struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);
 
-	clk_prepare_enable(rdma->clk);
-	return 0;
+	return clk_prepare_enable(rdma->clk);
 }
 
 void mtk_mdp_rdma_clk_disable(struct device *dev)

Original file line number	Diff line number	Diff line change
`@@ -262,8 +262,7 @@ int mtk_mdp_rdma_clk_enable(struct device *dev)`
`262`	`262`	`{`
`263`	`263`	`struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);`
`264`	`264`
`265`		`- clk_prepare_enable(rdma->clk);`
`266`		`- return 0;`
	`265`	`+ return clk_prepare_enable(rdma->clk);`
`267`	`266`	`}`
`268`	`267`
`269`	`268`	`void mtk_mdp_rdma_clk_disable(struct device *dev)`