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[v3,09/10] drm: mediatek: Omit warning on probe defers

Message ID 9d514a4ab45f0700663fa756d5aa3913922b6fb7.1524820923.git.mbrugger@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

Matthias Brugger April 27, 2018, 9:24 a.m. UTC 
From: Matthias Brugger <mbrugger@suse.com>

When probe through the MFD, it can happen that the
clock drivers wasn't probed before the ddp driver gets
invoked. The driver used to omit a warning that the driver
failed to get the clocks. Omit this error on the defered probe path.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

CK Hu (胡俊光) April 30, 2018, 10:58 a.m. UTC | #1 
Hi, Matthias:

On Fri, 2018-04-27 at 11:24 +0200, matthias.bgg@kernel.org wrote:
> From: Matthias Brugger <mbrugger@suse.com>
> 
> When probe through the MFD, it can happen that the
> clock drivers wasn't probed before the ddp driver gets
> invoked. The driver used to omit a warning that the driver
> failed to get the clocks. Omit this error on the defered probe path.
> 
> Signed-off-by: Matthias Brugger <mbrugger@suse.com>

It's better to use 'drm/mediatek:' for title to align drm commits.
For the modification,

Acked-by: CK Hu <ck.hu@mediatek.com>

Regards,
CK

> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index bafc5c77c4fb..6b399348a2dc 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -374,7 +374,8 @@ static int mtk_ddp_probe(struct platform_device *pdev)
>  
>  	ddp->clk = devm_clk_get(dev, NULL);
>  	if (IS_ERR(ddp->clk)) {
> -		dev_err(dev, "Failed to get clock\n");
> +		if (PTR_ERR(ddp->clk) != -EPROBE_DEFER)
> +			dev_err(dev, "Failed to get clock\n");
>  		return PTR_ERR(ddp->clk);
>  	}
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index bafc5c77c4fb..6b399348a2dc 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -374,7 +374,8 @@  static int mtk_ddp_probe(struct platform_device *pdev)
 
 	ddp->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(ddp->clk)) {
-		dev_err(dev, "Failed to get clock\n");
+		if (PTR_ERR(ddp->clk) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get clock\n");
 		return PTR_ERR(ddp->clk);
 	}