On Sat, Mar 08, 2025 at 09:37:13PM +0000, Jonas Karlman wrote:
> All Rockchip GMAC variants typically write to GRF regs to control e.g.
> interface mode, speed and MAC rx/tx delay. Newer SoCs such as RK3562,
> RK3576 and RK3588 use a mix of GRF and peripheral GRF regs.
>
> Prior to the commit b331b8ef86f0 ("dt-bindings: net: convert
> rockchip-dwmac to json-schema") the property rockchip,grf was listed
> under "Required properties". During the conversion this was lost and
> rockchip,grf has since then incorrectly been treated as optional and
> not as required.
>
> Similarly, when rockchip,php-grf was added to the schema in the
> commit a2b77831427c ("dt-bindings: net: rockchip-dwmac: add rk3588 gmac
> compatible") it also incorrectly has been treated as optional for all
> GMAC variants, when it should have been required for RK3588, and later
> also for RK3576.
>
> Update this binding to require rockchip,grf and rockchip,php-grf to
> properly reflect that GRF (and peripheral GRF for RK3576/RK3588) is
> required to control part of GMAC.
>
> This should not introduce any breakage as all Rockchip GMAC nodes have
> been added together with a rockchip,grf phandle (and rockchip,php-grf
> where required) in their initial commit.
>
> Signed-off-by: Jonas Karlman <jonas@xxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Best regards,
Krzysztof
