linux-kernel - Re: [PATCH -next v2 3/3] drm/rockchip: Simplified with dev_err

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Message-ID: <2013930.8hb0ThOEGa@phil>
Date: Thu, 19 Sep 2024 17:25:06 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: hjc@...k-chips.com, andy.yan@...k-chips.com,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de,
 airlied@...il.com, daniel@...ll.ch, dri-devel@...ts.freedesktop.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org, krzk@...nel.org, jic23@...nel.org,
 Jinjie Ruan <ruanjinjie@...wei.com>
Cc: ruanjinjie@...wei.com
Subject:
 Re: [PATCH -next v2 3/3] drm/rockchip: Simplified with dev_err_probe()

Am Dienstag, 27. August 2024, 05:03:57 CEST schrieb Jinjie Ruan:
> Use dev_err_probe to replace deprecated() DRM_DEV_ERROR(), which
> can simplfy code.
> 
> Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
> ---
>  drivers/gpu/drm/rockchip/rockchip_lvds.c | 30 +++++++++---------------
>  1 file changed, 11 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c
> index 700ac730887d..92679e54c71d 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c

> @@ -467,24 +465,22 @@ static int rk3288_lvds_probe(struct platform_device *pdev,
>  
>  	lvds->pins->p = devm_pinctrl_get(lvds->dev);
>  	if (IS_ERR(lvds->pins->p)) {
> -		DRM_DEV_ERROR(lvds->dev, "no pinctrl handle\n");
> +		dev_err(lvds->dev, "no pinctrl handle\n");

you're mixing things here.

The commit message talks about dev_err_probe but you're doing
here and below a DRM_DEV_ERROR to dev_err conversion, which also
partially happens in patch 2 of this series.

Please structure things in a way that the patch content matches
the patch description :-)


Thanks a lot
Heiko

>  		devm_kfree(lvds->dev, lvds->pins);
>  		lvds->pins = NULL;
>  	} else {
>  		lvds->pins->default_state =
>  			pinctrl_lookup_state(lvds->pins->p, "lcdc");
>  		if (IS_ERR(lvds->pins->default_state)) {
> -			DRM_DEV_ERROR(lvds->dev, "no default pinctrl state\n");
> +			dev_err(lvds->dev, "no default pinctrl state\n");
>  			devm_kfree(lvds->dev, lvds->pins);
>  			lvds->pins = NULL;
>  		}
>  	}
>  
>  	ret = clk_prepare(lvds->pclk);
> -	if (ret < 0) {
> -		DRM_DEV_ERROR(lvds->dev, "failed to prepare pclk_lvds\n");
> -		return ret;
> -	}
> +	if (ret < 0)
> +		return dev_err_probe(lvds->dev, ret, "failed to prepare pclk_lvds\n");
>  
>  	return 0;
>  }
> @@ -700,22 +696,18 @@ static int rockchip_lvds_probe(struct platform_device *pdev)
>  
>  	lvds->grf = syscon_regmap_lookup_by_phandle(dev->of_node,
>  						    "rockchip,grf");
> -	if (IS_ERR(lvds->grf)) {
> -		DRM_DEV_ERROR(dev, "missing rockchip,grf property\n");
> -		return PTR_ERR(lvds->grf);
> -	}
> +	if (IS_ERR(lvds->grf))
> +		return dev_err_probe(dev, PTR_ERR(lvds->grf), "missing rockchip,grf property\n");
>  
>  	ret = lvds->soc_data->probe(pdev, lvds);
> -	if (ret) {
> -		DRM_DEV_ERROR(dev, "Platform initialization failed\n");
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Platform initialization failed\n");
>  
>  	dev_set_drvdata(dev, lvds);
>  
>  	ret = component_add(&pdev->dev, &rockchip_lvds_component_ops);
>  	if (ret < 0) {
> -		DRM_DEV_ERROR(dev, "failed to add component\n");
> +		dev_err(dev, "failed to add component\n");
>  		clk_unprepare(lvds->pclk);
>  	}
>  
>