Re: [PATCH v10 1/4] MIPS: Loongson64: dts: update the display controller device node

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On 2/20/22 5:55 PM, Sui Jingfeng wrote:

> From: suijingfeng <suijingfeng@xxxxxxxxxxx>
> 
> The display controller is a pci device, its PCI vendor id is 0x0014
> its PCI device id is 0x7a06.
> 
> 1) In order to let the driver to know which chip the DC is contained
>    in, the compatible string of the display controller is updated
>    according to the chip's name.
> 
> 2) Add display controller device node for ls2k1000 SoC
> 
> Reported-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Signed-off-by: suijingfeng <suijingfeng@xxxxxxxxxxx>
> Signed-off-by: Sui Jingfeng <15330273260@xxxxxx>
> ---
>  arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi | 8 ++++++++
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi          | 7 ++-----
>  2 files changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
> index 768cf2abcea3..af9cda540f9e 100644
> --- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
> +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
> @@ -209,6 +209,14 @@ gpu@5,0 {
>  				interrupt-parent = <&liointc0>;
>  			};
>  
> +			lsdc: display-controller@6,0 {

   Shouldn't the node name just be "display", according to the section 2.2.2
of the DT spec?

[...]
> diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> index 2f45fce2cdc4..ec35ea9b2fe8 100644
> --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> @@ -160,11 +160,8 @@ gpu@6,0 {
>  				interrupt-parent = <&pic>;
>  			};
>  
> -			dc@6,1 {
> -				compatible = "pci0014,7a06.0",
> -						   "pci0014,7a06",
> -						   "pciclass030000",
> -						   "pciclass0300";
> +			lsdc: display-controller@6,1 {

   Same here...

[...]

MBR, Sergey



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