linux-kernel - Re: [PATCH V5 7/7] dt-bindings: add document for dw-hdmi

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Message-ID: <546088F6.4090505@rock-chips.com>
Date:	Mon, 10 Nov 2014 17:44:22 +0800
From:	Andy Yan <andy.yan@...k-chips.com>
To:	Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>,
	airlied@...ux.ie, heiko@...ech.de, fabio.estevam@...escale.com,
	rmk+kernel@....linux.org.uk
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Shawn Guo <shawn.guo@...aro.org>,
	Josh Boyer <jwboyer@...hat.com>,
	Sean Paul <seanpaul@...omium.org>,
	Inki Dae <inki.dae@...sung.com>,
	Dave Airlie <airlied@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Lucas Stach <l.stach@...gutronix.de>, djkurtz@...gle.com,
	ykk@...k-chips.com, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, devel@...verdev.osuosl.org,
	devicetree@...r.kernel.org, linux-rockchip@...ts.infradead.org,
	jay.xu@...k-chips.com
Subject: Re: [PATCH V5 7/7] dt-bindings: add document for dw-hdmi

Hi ZubairLK
On 2014年11月10日 17:17, Zubair Lutfullah Kakakhel wrote:
> Nice work.
>
> This patch should move the binding from
>
> Documentation/devicetree/bindings/staging/imx-drm/hdmi.txt
> to the location instead of making a new file and leaving the old
> one in place.
>
> And use git format-patch -M to highlight any changes.
>
> Regards
> ZubairLK
    I add these bindings for dw-hdmi core, because
   properities like reg, interrupts, ddc-i2c-bus, reg-io-width are used
   by dw-hdmi core, but properities like compatible, gpr,clk, are platform
   specific , they are handled by the platform code like dw_hdmi-imx.c
   and described in platform specific dt binds like /imx-drm/hdmi.txt
> On 08/11/14 05:32, Andy Yan wrote:
>> Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
>> ---
>>   .../devicetree/bindings/drm/bridge/dw-hdmi.txt     | 38 ++++++++++++++++++++++
>>   1 file changed, 38 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>>
>> diff --git a/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>> new file mode 100644
>> index 0000000..aa7ed17
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>> @@ -0,0 +1,38 @@
>> +DesignWare HDMI bridge bindings
>> +
>> +Required properities:
>> +- compatibel: platform specific such as "fsl,imx6q-hdmi","fsl,imx6dl-hdmi"
>> +	      "rockchip,rk3288-dw-hdmi"
>> +- reg: physical base address of the controller and length
>> +- ddc-i2c-bus: the ddc i2c bus
>> +- interrupts: The interrupt number to the cpu
>> +
>> +Optional properties
>> +- reg-io-width: the width of the reg:1,4, default set to 1 if not present
>> +
>> +Example:
>> +	hdmi: hdmi@...0000 {
>> +		compatible = "fsl,imx6q-hdmi";
>> +		reg = <0x00120000 0x9000>;
>> +		interrupts = <0 115 0x04>;
>> +		gpr = <&gpr>;
>> +		clocks = <&clks 123>, <&clks 124>;
>> +		clock-names = "iahb", "isfr";
>> +		ddc-i2c-bus = <&i2c2>;
>> +
>> +		port@0 {
>> +			reg = <0>;
>> +
>> +			hdmi_mux_0: endpoint {
>> +				remote-endpoint = <&ipu1_di0_hdmi>;
>> +			};
>> +		};
>> +
>> +		port@1 {
>> +			reg = <1>;
>> +
>> +			hdmi_mux_1: endpoint {
>> +				remote-endpoint = <&ipu1_di1_hdmi>;
>> +			};
>> +		};
>> +	};
>>
>
>


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