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SubjectRe: [PATCH v5, 24/32] drm/mediatek: add clock property check before get it
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Hi, Yongqiang:

On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@mediatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@mediatek.com>
>
> This patch add clock property check before get it
>

I've rewrite this patch and applied to mediatek-drm-next-5.5 [1] with
the title "drm/mediatek: add no_clk into ddp private data", thanks.

[1]
https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-next-5.5

Regards,
CK

> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
> 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);


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