Re: [PATCH] drm/imx/dcss: Use device_get_match_data()

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Hi Fabio,

On Mon, Mar 15, 2021 at 8:38 PM Fabio Estevam <festevam@xxxxxxxxx> wrote:
>
> The retrieval of driver data can be a bit simplified by using
> device_get_match_data(), so switch to it.
>
> Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx>
> ---
>  drivers/gpu/drm/imx/dcss/dcss-dev.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.c b/drivers/gpu/drm/imx/dcss/dcss-dev.c
> index c849533ca83e..de0f02de94c4 100644
> --- a/drivers/gpu/drm/imx/dcss/dcss-dev.c
> +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c
> @@ -168,13 +168,6 @@ struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output)
>         int ret;
>         struct resource *res;
>         struct dcss_dev *dcss;
> -       const struct dcss_type_data *devtype;
> -
> -       devtype = of_device_get_match_data(dev);

It looks like this is the only user of linux/of_device.h in this file?
If so, remove linux/of_device.h and include linux/platform_device.h?

Regards,
Liu Ying

> -       if (!devtype) {
> -               dev_err(dev, "no device match found\n");
> -               return ERR_PTR(-ENODEV);
> -       }
>
>         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>         if (!res) {
> @@ -187,7 +180,7 @@ struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output)
>                 return ERR_PTR(-ENOMEM);
>
>         dcss->dev = dev;
> -       dcss->devtype = devtype;
> +       dcss->devtype = device_get_match_data(dev);
>         dcss->hdmi_output = hdmi_output;
>
>         ret = dcss_clks_init(dcss);
> --
> 2.17.1
>
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