[PATCH v3 1/3] dt-bindings: i2c: dw: Document compatible thead,th1520-i2c

[Jarkko Nikula]

Hi

On 6/18/24 10:42 AM, Thomas Bonnefille wrote:
> Add documentation for compatible string thead,th1520-i2c which can be
> used specifically for the TH1520 SoC.
> 
> Signed-off-by: Thomas Bonnefille <thomas.bonnefille at bootlin.com>
> Acked-by: Conor Dooley <conor.dooley at microchip.com>
> ---
>   Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> index d9293c57f573..60035a787e5c 100644
> --- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
> @@ -33,6 +33,10 @@ properties:
>             - const: snps,designware-i2c
>         - description: Baikal-T1 SoC System I2C controller
>           const: baikal,bt1-sys-i2c
> +      - description: T-HEAD TH1520 SoCs I2C controller
> +        items:
> +          - const: thead,th1520-i2c
> +          - const: snps,designware-i2c
>   

Your comment below makes me thinking is this change needed? So is it 
enough to specify "snps,designware-i2c" for the compatible string in 
patch 2/3?

"It appears that the TH1520 I2C is already supported in the upstream 
kernel through the Synopsis Designware I2C adapter driver."