Re: [v3 3/3] drm/mediatek: add mt8183 dpi support

From: Jitao Shi <jitao.shi@mediatek.com>
To: CK Hu <ck.hu@mediatek.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, David Airlie <airlied@linux.ie>,
	stonea168@163.com, dri-devel@lists.freedesktop.org,
	yingjoe.chen@mediatek.com, Ajay Kumar <ajaykumar.rs@samsung.com>,
	Vincent Palatin <vpalatin@chromium.org>,
	cawa.cheng@mediatek.com,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Thierry Reding <treding@nvidia.com>,
	linux-pwm@vger.kernel.org, Sascha Hauer <kernel@pengutronix.de>,
	Pawel Moll <pawel.moll@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Rob Herring <robh+dt@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Andy Yan <andy.yan@rock-chips.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	eddie.huang@mediatek.com, linux-arm-kernel@lists.infradead.org,
	Rahul Sharma <rahul.sharma@samsung.com>,
	srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org,
	Kumar Gala <galak@codeaurora.org>, Sean Paul <seanpaul@chromium>
Subject: Re: [v3 3/3] drm/mediatek: add mt8183 dpi support
Date: Sun, 19 May 2019 17:37:21 +0800	[thread overview]
Message-ID: <1558258641.367.6.camel@mszsdaap41> (raw)
In-Reply-To: <1557214887.3498.7.camel@mtksdaap41>

On Tue, 2019-05-07 at 15:41 +0800, CK Hu wrote:
> Hi, Jitao:
> 
> On Tue, 2019-04-16 at 13:52 +0800, Jitao Shi wrote:
> 
> I need the commit message. Even though the code is easy to understand,
> words for this patch is still necessary.
> 
> Regards,
> CK
> 

I'll fine tune the commit message next version.

Best Regards
Jitao

> > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_dpi.c | 19 +++++++++++++++++++
> >  1 file changed, 19 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > index 66405159141a..fbb087218775 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > @@ -681,6 +681,16 @@ static unsigned int mt2701_calculate_factor(int clock)
> >  		return 2;
> >  }
> >  
> > +static unsigned int mt8183_calculate_factor(int clock)
> > +{
> > +	if (clock <= 27000)
> > +		return 8;
> > +	else if (clock <= 167000)
> > +		return 4;
> > +	else
> > +		return 2;
> > +}
> > +
> >  static const struct mtk_dpi_conf mt8173_conf = {
> >  	.cal_factor = mt8173_calculate_factor,
> >  	.reg_h_fre_con = 0xe0,
> > @@ -692,6 +702,12 @@ static const struct mtk_dpi_conf mt2701_conf = {
> >  	.edge_sel_en = true,
> >  };
> >  
> > +static const struct mtk_dpi_conf mt8183_conf = {
> > +	.cal_factor = mt8183_calculate_factor,
> > +	.reg_h_fre_con = 0xe0,
> > +	.dual_edge = true,
> > +};
> > +
> >  static int mtk_dpi_probe(struct platform_device *pdev)
> >  {
> >  	struct device *dev = &pdev->dev;
> > @@ -787,6 +803,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
> >  	{ .compatible = "mediatek,mt8173-dpi",
> >  	  .data = &mt8173_conf,
> >  	},
> > +	{ .compatible = "mediatek,mt8183-dpi",
> > +	  .data = &mt8183_conf,
> > +	},
> >  	{ },
> >  };
> >  
> 
> 

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