RE: [PATCH 1/2] arm64: dts: ls1028a: Add properties for Mali DP500 node

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> -----Original Message-----
> From: Shawn Guo [mailto:shawnguo@xxxxxxxxxx]
> Sent: 2019年4月3日 18:14
> To: Wen He <wen.he_1@xxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx; Leo Li <leoyang.li@xxxxxxx>;
> liviu.dudau@xxxxxxx; brian.starkey@xxxxxxx
> Subject: Re: [PATCH 1/2] arm64: dts: ls1028a: Add properties for Mali DP500
> node
> 
> On Thu, Mar 28, 2019 at 03:51:46AM +0000, Wen He wrote:
> > The LS1028A has a LCD controller and Displayport interface that
> > connects to eDP and Displayport connectors on the LS1028A board.
> >
> > This patch enables the LCD controller driver on the LS1028A.
> >
> > Signed-off-by: Alison Wang <alison.wang@xxxxxxx>
> > Signed-off-by: Wen He <wen.he_1@xxxxxxx>
> > ---
> >  .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 37
> > +++++++++++++++++++
> >  1 file changed, 37 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > index 8dd3501b1333..0d5963bb46c5 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > @@ -70,6 +70,27 @@
> >  		clock-output-names = "sysclk";
> >  	};
> >
> > +	dpclk: dpclk {
> 
> Please follow the naming convention "clock-xxx".
> 
> > +		compatible = "fixed-clock";
> > +		#clock-cells = <0>;
> > +		clock-frequency = <27000000>;
> > +		clock-output-names= "dpclk";
> > +	};
> > +
> > +	aclk: aclk {
> > +		compatible = "fixed-clock";
> > +		#clock-cells = <0>;
> > +		clock-frequency = <650000000>;
> > +		clock-output-names= "aclk";
> > +	};
> > +
> > +	pclk: pclk {
> > +		compatible = "fixed-clock";
> > +		#clock-cells = <0>;
> > +		clock-frequency = <650000000>;
> > +		clock-output-names= "pclk";
> > +	};
> > +
> >  	reboot {
> >  		compatible ="syscon-reboot";
> >  		regmap = <&dcfg>;
> > @@ -433,4 +454,20 @@
> >  			};
> >  		};
> >  	};
> > +
> > +	dp0: malidp@f080000 {
> 
> The node name should be something generic.  The recommendation from
> Devicetree Specification is 'display'.
> 

That definition following by malidp Devicetree bindings file.
If use name is 'display', how to define display port controller? this only is LCD controller dts node.

> > +		compatible = "arm,mali-dp500";
> > +		reg = <0x0 0xf080000 0x0 0x10000>;
> > +		interrupts = <0 222 IRQ_TYPE_LEVEL_HIGH>,
> > +			     <0 223 IRQ_TYPE_LEVEL_HIGH>;
> > +		interrupt-names = "DE", "SE";
> > +		clocks = <&dpclk>, <&aclk>, <&aclk>, <&pclk>;
> > +		clock-names = "pxlclk", "mclk", "aclk", "pclk";
> > +		arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
> 
> Please have a newline between properties and child node.
> 
> Shawn
> 

Sure, but I see the mail devicetree binding doesn't have a blank line. So I removed it.
Is need to add a newline?

Best Regards,
Wen

> > +		port {
> > +			dp0_out: endpoint {
> > +
> > +			};
> > +		};
> > +	};
> >  };
> > --
> > 2.17.1
> >




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