linux-kernel - Re: [PATCH 2/4] dt-bindings: Add a binding for Mediatek MDP

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Message-ID: <1469016882.12306.3.camel@mtksdaap41>
Date:	Wed, 20 Jul 2016 20:14:42 +0800
From:	Minghsiu Tsai <minghsiu.tsai@...iatek.com>
To:	Rob Herring <robh@...nel.org>
CC:	Hans Verkuil <hans.verkuil@...co.com>,
	<daniel.thompson@...aro.org>,
	"Mauro Carvalho Chehab" <mchehab@....samsung.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Pawel Osciak <posciak@...omium.org>,
	<srv_heupstream@...iatek.com>,
	Eddie Huang <eddie.huang@...iatek.com>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-media@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 2/4] dt-bindings: Add a binding for Mediatek MDP

On Sat, 2016-07-16 at 18:01 -0500, Rob Herring wrote:
> On Thu, Jul 14, 2016 at 08:17:59PM +0800, Minghsiu Tsai wrote:
> > Add a DT binding documentation of MDP for the MT8173 SoC
> > from Mediatek
> > 
> > Signed-off-by: Minghsiu Tsai <minghsiu.tsai@...iatek.com>
> > ---
> >  .../devicetree/bindings/media/mediatek-mdp.txt     |   92 ++++++++++++++++++++
> >  1 file changed, 92 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/mediatek-mdp.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/media/mediatek-mdp.txt b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
> > new file mode 100644
> > index 0000000..ef570c3
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
> > @@ -0,0 +1,92 @@
> > +* Mediatek Media Data Path
> > +
> > +Media Data Path is used for scaling and color space conversion.
> > +
> > +Required properties:
> > +  - compatible : should contain them as below:
> > +        "mediatek,mt8173-mdp"
> > +        "mediatek,mt8173-mdp-rdma"
> > +        "mediatek,mt8173-mdp-rsz"
> > +        "mediatek,mt8173-mdp-wdma"
> > +        "mediatek,mt8173-mdp-wrot"
> > +  - clocks : device clocks
> > +  - power-domains : a phandle to the power domain.
> > +  - mediatek,larb : should contain the larbes of current platform
> > +  - iommus : Mediatek IOMMU H/W has designed the fixed associations with
> > +        the multimedia H/W. and there is only one multimedia iommu domain.
> > +        "iommus = <&iommu portid>" the "portid" is from
> > +        dt-bindings\iommu\mt8173-iommu-port.h, it means that this portid will
> > +        enable iommu. The portid default is disable iommu if "<&iommu portid>"
> > +        don't be added.
> > +  - mediatek,vpu : the node of video processor unit
> 
> These properties don't apply to all the nodes. I think you need a 
> section for each IP block.


I will add description for those IP block, thanks.