From mboxrd@z Thu Jan  1 00:00:00 1970
From: thierry.reding@gmail.com (Thierry Reding)
Date: Mon, 30 May 2016 12:45:53 +0200
Subject: [RFC v2 3/5] drm/mediatek: add *driver_data for different
 hardware settings
In-Reply-To: <1463996582.30093.5.camel@mtksdaap41>
References: <1463756736-46573-1-git-send-email-yt.shen@mediatek.com>
 <1463756736-46573-4-git-send-email-yt.shen@mediatek.com>
 <1463996582.30093.5.camel@mtksdaap41>
Message-ID: <20160530104553.GB8388@ulmo.ba.sec>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Mon, May 23, 2016 at 05:43:02PM +0800, CK Hu wrote:
> Hi, YT:
> 
> One comment below.
> 
> On Fri, 2016-05-20 at 23:05 +0800, yt.shen at mediatek.com wrote:
> > From: YT Shen <yt.shen@mediatek.com>
> > 
> > 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@mediatek.com>
> > ---
> > +
> > +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.

I think what you really want is of_device_get_match_data().

Thierry
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