Re: [PATCH 2/2] ARM: dts: keystone: fix case in SPI NOR node compatible

Krzysztof Kozlowski
2022-04-17T17:58:07Z

On 15/04/2022 20:54, Nishanth Menon wrote:
>
> I have no idea how this works. There is no documentation for the
> compatible, So I am guessing adding it to Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
> is appropriate prior to replacing with "micron,n25q128a11", "jedec,spi-nor";

Compatible is documented in jedec,spi-nor.yaml (through pattern),
although it should be followed by "jedec,spi-nor", according to schema.
I did not fix that missing compatible fallback, because I did not want
to break any setup (I cannot test it), but adding the fallback seems
harmless/safe.
>
> $ git grep micron,n25q128a11 .
> arch/arm/boot/dts/imx6qdl-aristainetos.dtsi: compatible = "micron,n25q128a11", "jedec,spi-nor";
> arch/arm/boot/dts/imx6qdl-aristainetos2.dtsi: compatible = "micron,n25q128a11", "jedec,spi-nor";
> arch/arm/boot/dts/keystone-k2e-evm.dts: compatible = "micron,n25q128a11";
> arch/arm/boot/dts/keystone-k2hk-evm.dts: compatible = "micron,n25q128a11";
> arch/arm/boot/dts/keystone-k2l-evm.dts: compatible = "micron,n25q128a11";
> arch/powerpc/boot/dts/fsl/t1024qds.dts: compatible = "micron,n25q128a11", "jedec,spi-nor"; /* 16MB */
> arch/powerpc/boot/dts/fsl/t104xqds.dtsi: compatible = "micron,n25q128a11", "jedec,spi-nor";
> arch/powerpc/boot/dts/fsl/t208xqds.dtsi: compatible = "micron,n25q128a11", "jedec,spi-nor"; /* 16MB */
>
>

Best regards,
Krzysztof