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Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP

Started byRob Herring <robh@kernel.org>
First post2016-07-26 21:00 +0200
Last post2016-08-02 08:00 +0200
Articles 4 — 2 participants

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  Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP Rob Herring <robh@kernel.org> - 2016-07-26 21:00 +0200
    Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP Minghsiu Tsai <minghsiu.tsai@mediatek.com> - 2016-07-27 03:50 +0200
      Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP Rob Herring <robh@kernel.org> - 2016-07-28 18:00 +0200
        Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP Minghsiu Tsai <minghsiu.tsai@mediatek.com> - 2016-08-02 08:00 +0200

#1450790 — Re: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP

FromRob Herring <robh@kernel.org>
Date2016-07-26 21:00 +0200
SubjectRe: [PATCH v2 2/4] dt-bindings: Add a binding for Mediatek MDP
Message-ID<rZfKa-5Fs-11@gated-at.bofh.it>
On Fri, Jul 22, 2016 at 04:33:01PM +0800, Minghsiu Tsai wrote:
> Add a DT binding documentation of MDP for the MT8173 SoC
> from Mediatek
> 
> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> ---
>  .../devicetree/bindings/media/mediatek-mdp.txt     |   96 ++++++++++++++++++++
>  1 file changed, 96 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..2dad031
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
> @@ -0,0 +1,96 @@
> +* Mediatek Media Data Path
> +
> +Media Data Path is used for scaling and color space conversion.
> +
> +Required properties (all function blocks):
> +- compatible: "mediatek,<chip>-mdp"

What is this, ...

> +        "mediatek,<chip>-mdp-<function>", one of

and this?

> +        "mediatek,<chip>-mdp-rdma"  - read DMA
> +        "mediatek,<chip>-mdp-rsz"   - resizer
> +        "mediatek,<chip>-mdp-wdma"  - write DMA
> +        "mediatek,<chip>-mdp-wrot"  - write DMA with rotation

List what are valid values of <chip>.

> +- reg: Physical base address and length of the function block register space
> +- clocks: device clocks
> +- power-domains: a phandle to the power domain.
> +- mediatek,vpu: the node of video processor unit
> +
> +Required properties (DMA function blocks):
> +- compatible: Should be one of
> +        "mediatek,<chip>-mdp-rdma"
> +        "mediatek,<chip>-mdp-wdma"
> +        "mediatek,<chip>-mdp-wrot"
> +- iommus: should point to the respective IOMMU block with master port as
> +  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> +  for details.
> +- mediatek,larb: must contain the local arbiters in the current Socs.

It is still not clear which properties apply to which compatible 
strings.

> +
> +Example:
> +	mdp_rdma0: rdma@14001000 {
> +		compatible = "mediatek,mt8173-mdp-rdma",
> +			     "mediatek,mt8173-mdp";
> +		reg = <0 0x14001000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_RDMA0>,
> +			 <&mmsys CLK_MM_MUTEX_32K>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +		iommus = <&iommu M4U_PORT_MDP_RDMA0>;
> +		mediatek,larb = <&larb0>;
> +		mediatek,vpu = <&vpu>;
> +	};
> +
> +	mdp_rdma1: rdma@14002000 {
> +		compatible = "mediatek,mt8173-mdp-rdma";
> +		reg = <0 0x14002000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_RDMA1>,
> +			 <&mmsys CLK_MM_MUTEX_32K>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +		iommus = <&iommu M4U_PORT_MDP_RDMA1>;
> +		mediatek,larb = <&larb4>;
> +	};
> +
> +	mdp_rsz0: rsz@14003000 {
> +		compatible = "mediatek,mt8173-mdp-rsz";
> +		reg = <0 0x14003000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_RSZ0>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +	};
> +
> +	mdp_rsz1: rsz@14004000 {
> +		compatible = "mediatek,mt8173-mdp-rsz";
> +		reg = <0 0x14004000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_RSZ1>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +	};
> +
> +	mdp_rsz2: rsz@14005000 {
> +		compatible = "mediatek,mt8173-mdp-rsz";
> +		reg = <0 0x14005000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_RSZ2>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +	};
> +
> +	mdp_wdma0: wdma@14006000 {
> +		compatible = "mediatek,mt8173-mdp-wdma";
> +		reg = <0 0x14006000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_WDMA>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +		iommus = <&iommu M4U_PORT_MDP_WDMA>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	mdp_wrot0: wrot@14007000 {
> +		compatible = "mediatek,mt8173-mdp-wrot";
> +		reg = <0 0x14007000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_WROT0>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +		iommus = <&iommu M4U_PORT_MDP_WROT0>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	mdp_wrot1: wrot@14008000 {
> +		compatible = "mediatek,mt8173-mdp-wrot";
> +		reg = <0 0x14008000 0 0x1000>;
> +		clocks = <&mmsys CLK_MM_MDP_WROT1>;
> +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> +		iommus = <&iommu M4U_PORT_MDP_WROT1>;
> +		mediatek,larb = <&larb4>;
> +	};
> -- 
> 1.7.9.5
>

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#1450998

FromMinghsiu Tsai <minghsiu.tsai@mediatek.com>
Date2016-07-27 03:50 +0200
Message-ID<rZm8V-1gn-5@gated-at.bofh.it>
In reply to#1450790
On Tue, 2016-07-26 at 13:54 -0500, Rob Herring wrote:
> On Fri, Jul 22, 2016 at 04:33:01PM +0800, Minghsiu Tsai wrote:
> > Add a DT binding documentation of MDP for the MT8173 SoC
> > from Mediatek
> > 
> > Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> > ---
> >  .../devicetree/bindings/media/mediatek-mdp.txt     |   96 ++++++++++++++++++++
> >  1 file changed, 96 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..2dad031
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
> > @@ -0,0 +1,96 @@
> > +* Mediatek Media Data Path
> > +
> > +Media Data Path is used for scaling and color space conversion.
> > +
> > +Required properties (all function blocks):
> > +- compatible: "mediatek,<chip>-mdp"
> 
> What is this, ...
> 

It is used to match platform driver.


> > +        "mediatek,<chip>-mdp-<function>", one of
> 
> and this?
> 

It is string format of HW block. <chip> could be "mt8173", and
<function> are "rdma", "rsz", "wdma", and "wrot".  


> > +        "mediatek,<chip>-mdp-rdma"  - read DMA
> > +        "mediatek,<chip>-mdp-rsz"   - resizer
> > +        "mediatek,<chip>-mdp-wdma"  - write DMA
> > +        "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
> 
> List what are valid values of <chip>.
> 

<chip> - mt8173. There should be other chip added in future.
I will change the property as blow:

- compatible: "mediatek,<chip>-mdp"
        Should be one of
        "mediatek,<chip>-mdp-rdma"  - read DMA
        "mediatek,<chip>-mdp-rsz"   - resizer
        "mediatek,<chip>-mdp-wdma"  - write DMA
        "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
        <chip> - could be 8173


If don't need <chip>, I also can change it as below. It is more clear.
- compatible: "mediatek,mt8173-mdp"
        Should be one of
        "mediatek,mt8173-mdp-rdma"  - read DMA
        "mediatek,mt8173-mdp-rsz"   - resizer
        "mediatek,mt8173-mdp-wdma"  - write DMA
        "mediatek,mt8173-mdp-wrot"  - write DMA with rotation


> > +- reg: Physical base address and length of the function block register space
> > +- clocks: device clocks
> > +- power-domains: a phandle to the power domain.
> > +- mediatek,vpu: the node of video processor unit
> > +
> > +Required properties (DMA function blocks):
> > +- compatible: Should be one of
> > +        "mediatek,<chip>-mdp-rdma"
> > +        "mediatek,<chip>-mdp-wdma"
> > +        "mediatek,<chip>-mdp-wrot"
> > +- iommus: should point to the respective IOMMU block with master port as
> > +  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> > +  for details.
> > +- mediatek,larb: must contain the local arbiters in the current Socs.
> 
> It is still not clear which properties apply to which compatible 
> strings.
> 

I found out the document for larb. 
I will change the property as below:

- mediatek,larb: must contain the local arbiters in the current Socs,
see
Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt 
  for details.


> > +
> > +Example:
> > +	mdp_rdma0: rdma@14001000 {
> > +		compatible = "mediatek,mt8173-mdp-rdma",
> > +			     "mediatek,mt8173-mdp";
> > +		reg = <0 0x14001000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_RDMA0>,
> > +			 <&mmsys CLK_MM_MUTEX_32K>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +		iommus = <&iommu M4U_PORT_MDP_RDMA0>;
> > +		mediatek,larb = <&larb0>;
> > +		mediatek,vpu = <&vpu>;
> > +	};
> > +
> > +	mdp_rdma1: rdma@14002000 {
> > +		compatible = "mediatek,mt8173-mdp-rdma";
> > +		reg = <0 0x14002000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_RDMA1>,
> > +			 <&mmsys CLK_MM_MUTEX_32K>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +		iommus = <&iommu M4U_PORT_MDP_RDMA1>;
> > +		mediatek,larb = <&larb4>;
> > +	};
> > +
> > +	mdp_rsz0: rsz@14003000 {
> > +		compatible = "mediatek,mt8173-mdp-rsz";
> > +		reg = <0 0x14003000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_RSZ0>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +	};
> > +
> > +	mdp_rsz1: rsz@14004000 {
> > +		compatible = "mediatek,mt8173-mdp-rsz";
> > +		reg = <0 0x14004000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_RSZ1>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +	};
> > +
> > +	mdp_rsz2: rsz@14005000 {
> > +		compatible = "mediatek,mt8173-mdp-rsz";
> > +		reg = <0 0x14005000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_RSZ2>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +	};
> > +
> > +	mdp_wdma0: wdma@14006000 {
> > +		compatible = "mediatek,mt8173-mdp-wdma";
> > +		reg = <0 0x14006000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_WDMA>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +		iommus = <&iommu M4U_PORT_MDP_WDMA>;
> > +		mediatek,larb = <&larb0>;
> > +	};
> > +
> > +	mdp_wrot0: wrot@14007000 {
> > +		compatible = "mediatek,mt8173-mdp-wrot";
> > +		reg = <0 0x14007000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_WROT0>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +		iommus = <&iommu M4U_PORT_MDP_WROT0>;
> > +		mediatek,larb = <&larb0>;
> > +	};
> > +
> > +	mdp_wrot1: wrot@14008000 {
> > +		compatible = "mediatek,mt8173-mdp-wrot";
> > +		reg = <0 0x14008000 0 0x1000>;
> > +		clocks = <&mmsys CLK_MM_MDP_WROT1>;
> > +		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > +		iommus = <&iommu M4U_PORT_MDP_WROT1>;
> > +		mediatek,larb = <&larb4>;
> > +	};
> > -- 
> > 1.7.9.5
> >

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#1451993

FromRob Herring <robh@kernel.org>
Date2016-07-28 18:00 +0200
Message-ID<rZVT4-8jp-17@gated-at.bofh.it>
In reply to#1450998
On Tue, Jul 26, 2016 at 8:44 PM, Minghsiu Tsai
<minghsiu.tsai@mediatek.com> wrote:
> On Tue, 2016-07-26 at 13:54 -0500, Rob Herring wrote:
>> On Fri, Jul 22, 2016 at 04:33:01PM +0800, Minghsiu Tsai wrote:
>> > Add a DT binding documentation of MDP for the MT8173 SoC
>> > from Mediatek
>> >
>> > Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
>> > ---
>> >  .../devicetree/bindings/media/mediatek-mdp.txt     |   96 ++++++++++++++++++++
>> >  1 file changed, 96 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..2dad031
>> > --- /dev/null
>> > +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
>> > @@ -0,0 +1,96 @@
>> > +* Mediatek Media Data Path
>> > +
>> > +Media Data Path is used for scaling and color space conversion.
>> > +
>> > +Required properties (all function blocks):
>> > +- compatible: "mediatek,<chip>-mdp"
>>
>> What is this, ...
>>
>
> It is used to match platform driver.

Would structuring things like this work instead:

{
  compatible = "mediatek,<chip>-mdp";
  ranges = ...;
  {
    compatible = "mediatek,<chip>-mdp-rdma";
    ...
  };
  {
    compatible = "mediatek,<chip>-mdp-wdma";
    ...
  };
  ...
};

>
>
>> > +        "mediatek,<chip>-mdp-<function>", one of
>>
>> and this?
>>
>
> It is string format of HW block. <chip> could be "mt8173", and
> <function> are "rdma", "rsz", "wdma", and "wrot".
>
>
>> > +        "mediatek,<chip>-mdp-rdma"  - read DMA
>> > +        "mediatek,<chip>-mdp-rsz"   - resizer
>> > +        "mediatek,<chip>-mdp-wdma"  - write DMA
>> > +        "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
>>
>> List what are valid values of <chip>.
>>
>
> <chip> - mt8173. There should be other chip added in future.
> I will change the property as blow:
>
> - compatible: "mediatek,<chip>-mdp"
>         Should be one of
>         "mediatek,<chip>-mdp-rdma"  - read DMA
>         "mediatek,<chip>-mdp-rsz"   - resizer
>         "mediatek,<chip>-mdp-wdma"  - write DMA
>         "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
>         <chip> - could be 8173
>
>
> If don't need <chip>, I also can change it as below. It is more clear.

Up to you. Depends on how many different chips you will have.

> - compatible: "mediatek,mt8173-mdp"
>         Should be one of
>         "mediatek,mt8173-mdp-rdma"  - read DMA
>         "mediatek,mt8173-mdp-rsz"   - resizer
>         "mediatek,mt8173-mdp-wdma"  - write DMA
>         "mediatek,mt8173-mdp-wrot"  - write DMA with rotation
>
>
>> > +- reg: Physical base address and length of the function block register space
>> > +- clocks: device clocks
>> > +- power-domains: a phandle to the power domain.
>> > +- mediatek,vpu: the node of video processor unit
>> > +
>> > +Required properties (DMA function blocks):
>> > +- compatible: Should be one of
>> > +        "mediatek,<chip>-mdp-rdma"
>> > +        "mediatek,<chip>-mdp-wdma"
>> > +        "mediatek,<chip>-mdp-wrot"
>> > +- iommus: should point to the respective IOMMU block with master port as
>> > +  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
>> > +  for details.
>> > +- mediatek,larb: must contain the local arbiters in the current Socs.
>>
>> It is still not clear which properties apply to which compatible
>> strings.
>>
>
> I found out the document for larb.
> I will change the property as below:
>
> - mediatek,larb: must contain the local arbiters in the current Socs,
> see
> Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
>   for details.

That's good, but not what I meant. You still have properties which
only apply to certain blocks, but are listed for all blocks like
mediatek,vpu for example.

Rob

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#1453610

FromMinghsiu Tsai <minghsiu.tsai@mediatek.com>
Date2016-08-02 08:00 +0200
Message-ID<s1AU9-jn-9@gated-at.bofh.it>
In reply to#1451993
On Thu, 2016-07-28 at 10:55 -0500, Rob Herring wrote:
> On Tue, Jul 26, 2016 at 8:44 PM, Minghsiu Tsai
> <minghsiu.tsai@mediatek.com> wrote:
> > On Tue, 2016-07-26 at 13:54 -0500, Rob Herring wrote:
> >> On Fri, Jul 22, 2016 at 04:33:01PM +0800, Minghsiu Tsai wrote:
> >> > Add a DT binding documentation of MDP for the MT8173 SoC
> >> > from Mediatek
> >> >
> >> > Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> >> > ---
> >> >  .../devicetree/bindings/media/mediatek-mdp.txt     |   96 ++++++++++++++++++++
> >> >  1 file changed, 96 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..2dad031
> >> > --- /dev/null
> >> > +++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
> >> > @@ -0,0 +1,96 @@
> >> > +* Mediatek Media Data Path
> >> > +
> >> > +Media Data Path is used for scaling and color space conversion.
> >> > +
> >> > +Required properties (all function blocks):
> >> > +- compatible: "mediatek,<chip>-mdp"
> >>
> >> What is this, ...
> >>
> >
> > It is used to match platform driver.
> 
> Would structuring things like this work instead:
> 
> {
>   compatible = "mediatek,<chip>-mdp";
>   ranges = ...;
>   {
>     compatible = "mediatek,<chip>-mdp-rdma";
>     ...
>   };
>   {
>     compatible = "mediatek,<chip>-mdp-wdma";
>     ...
>   };
>   ...
> };
> 

I am trying to modify it as structured node. But mdp failed to convert
image. Under debugging.


> >
> >
> >> > +        "mediatek,<chip>-mdp-<function>", one of
> >>
> >> and this?
> >>
> >
> > It is string format of HW block. <chip> could be "mt8173", and
> > <function> are "rdma", "rsz", "wdma", and "wrot".
> >
> >
> >> > +        "mediatek,<chip>-mdp-rdma"  - read DMA
> >> > +        "mediatek,<chip>-mdp-rsz"   - resizer
> >> > +        "mediatek,<chip>-mdp-wdma"  - write DMA
> >> > +        "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
> >>
> >> List what are valid values of <chip>.
> >>
> >
> > <chip> - mt8173. There should be other chip added in future.
> > I will change the property as blow:
> >
> > - compatible: "mediatek,<chip>-mdp"
> >         Should be one of
> >         "mediatek,<chip>-mdp-rdma"  - read DMA
> >         "mediatek,<chip>-mdp-rsz"   - resizer
> >         "mediatek,<chip>-mdp-wdma"  - write DMA
> >         "mediatek,<chip>-mdp-wrot"  - write DMA with rotation
> >         <chip> - could be 8173
> >
> >
> > If don't need <chip>, I also can change it as below. It is more clear.
> 
> Up to you. Depends on how many different chips you will have.
> 

I will replace "<chip>" with "mt8173"


> > - compatible: "mediatek,mt8173-mdp"
> >         Should be one of
> >         "mediatek,mt8173-mdp-rdma"  - read DMA
> >         "mediatek,mt8173-mdp-rsz"   - resizer
> >         "mediatek,mt8173-mdp-wdma"  - write DMA
> >         "mediatek,mt8173-mdp-wrot"  - write DMA with rotation
> >
> >
> >> > +- reg: Physical base address and length of the function block register space
> >> > +- clocks: device clocks
> >> > +- power-domains: a phandle to the power domain.
> >> > +- mediatek,vpu: the node of video processor unit
> >> > +
> >> > +Required properties (DMA function blocks):
> >> > +- compatible: Should be one of
> >> > +        "mediatek,<chip>-mdp-rdma"
> >> > +        "mediatek,<chip>-mdp-wdma"
> >> > +        "mediatek,<chip>-mdp-wrot"
> >> > +- iommus: should point to the respective IOMMU block with master port as
> >> > +  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> >> > +  for details.
> >> > +- mediatek,larb: must contain the local arbiters in the current Socs.
> >>
> >> It is still not clear which properties apply to which compatible
> >> strings.
> >>
> >
> > I found out the document for larb.
> > I will change the property as below:
> >
> > - mediatek,larb: must contain the local arbiters in the current Socs,
> > see
> > Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
> >   for details.
> 
> That's good, but not what I meant. You still have properties which
> only apply to certain blocks, but are listed for all blocks like
> mediatek,vpu for example.
> 
> Rob


I find out other properties' document. 

- clocks: device clocks, see
  Documentation/devicetree/bindings/clock/clock-bindings.txt for
details.
- power-domains: a phandle to the power domain, see
  Documentation/devicetree/bindings/power/power_domain.txt for details.
- mediatek,vpu: the node of video processor unit, see
  Documentation/devicetree/bindings/media/mediatek-vpu.txt for details.

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