From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> This patch add clock property check before get it Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index a5a6689..effc24a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -657,10 +657,12 @@ static int mtk_ddp_probe(struct platform_device *pdev) for (i = 0; i < 10; i++) ddp->mutex[i].id = i; - ddp->clk = devm_clk_get(dev, NULL); - if (IS_ERR(ddp->clk)) { - dev_err(dev, "Failed to get clock\n"); - return PTR_ERR(ddp->clk); + if (of_find_property(dev->of_node, "clocks", &i)) { + ddp->clk = devm_clk_get(dev, NULL); + if (IS_ERR(ddp->clk)) { + dev_err(dev, "Failed to get clock\n"); + return PTR_ERR(ddp->clk); + } } regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- 1.8.1.1.dirty