Re: [RFC v2 3/5] drm/mediatek: add *driver_data for different hardware settings

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Hi Emil,

Thanks for your review.

On Fri, 2016-05-27 at 10:24 +0100, Emil Velikov wrote:
> On 27 May 2016 at 08:31, YT Shen <yt.shen@xxxxxxxxxxxx> wrote:
> > Hi CK,
> >
> >
> > On Mon, 2016-05-23 at 17:43 +0800, CK Hu wrote:
> >> Hi, YT:
> >>
> >> One comment below.
> >>
> >> On Fri, 2016-05-20 at 23:05 +0800, yt.shen@xxxxxxxxxxxx wrote:
> >> > From: YT Shen <yt.shen@xxxxxxxxxxxx>
> >> >
> >> > There are some hardware settings changed, between MT8173 & MT2701:
> >> > DISP_OVL address offset changed, color format definition changed.
> >> > DISP_RDMA fifo size changed.
> >> > DISP_COLOR offset changed.
> >> >
> >> > Signed-off-by: YT Shen <yt.shen@xxxxxxxxxxxx>
> >> > ---
> >> > +
> >> > +static inline struct mtk_ddp_comp_driver_data *mtk_ovl_get_driver_data(
> >> > +   struct platform_device *pdev)
> >> > +{
> >> > +   const struct of_device_id *of_id =
> >> > +           of_match_device(mtk_disp_ovl_driver_dt_match, &pdev->dev);
> >> > +
> >> > +   return (struct mtk_ddp_comp_driver_data *)of_id->data;
> >> > +}
> >> > +
> >> > +static inline struct mtk_ddp_comp_driver_data *mtk_rdma_get_driver_data(
> >> > +   struct platform_device *pdev)
> >> > +{
> >> > +   const struct of_device_id *of_id =
> >> > +           of_match_device(mtk_disp_rdma_driver_dt_match, &pdev->dev);
> >> > +
> >> > +   return (struct mtk_ddp_comp_driver_data *)of_id->data;
> >> > +}
> >> > +
> >> > +static inline struct mtk_ddp_comp_driver_data *mtk_color_get_driver_data(
> >> > +   struct device_node *node)
> >> > +{
> >> > +   const struct of_device_id *of_id =
> >> > +           of_match_node(mtk_disp_color_driver_dt_match, node);
> >> > +
> >> > +   return (struct mtk_ddp_comp_driver_data *)of_id->data;
> >> > +}
> >> > +
> >>
> >> These three functions looks the same with different parameter:
> >> mtk_disp_ovl_driver_dt_match, mtk_disp_rdma_driver_dt_match, and
> >> mtk_disp_color_driver_dt_match. So merge them to prevent duplicated
> >> code.
> > OK, I'll do this in the next version.
> 
> Also preserve the const-ness of the data - don't cast it away on the
> return line.
> Note that the function return type (and some of the users of said
> functions) should be updated as well.
OK, I will check this part.

> 
> -Emil


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