[PATCH v2 2/3] net: stmmac: dwmac-rk: Validate GRF and peripheral GRF during probe

[Simon Horman]

On Sat, Mar 08, 2025 at 09:37:14PM +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 RK3576 and
> RK3588 use a mix of GRF and peripheral GRF regs. These syscon regmaps is
> located with help of a rockchip,grf and rockchip,php-grf phandle.
> 
> However, validating the rockchip,grf and rockchip,php-grf syscon regmap
> is deferred until e.g. interface mode or speed is configured, inside the
> individual SoC specific operations.
> 
> Change to validate the rockchip,grf and rockchip,php-grf syscon regmap
> at probe time to simplify all SoC specific operations.
> 
> This should not introduce any backward compatibility issues as all
> 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 at kwiboo.se>

Reviewed-by: Simon Horman <horms at kernel.org>