| Message ID | 20250308213720.2517944-2-jonas@kwiboo.se (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | net: stmmac: dwmac-rk: Validate GRF and peripheral GRF during probe | expand |
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml index f8a576611d6c..8dd870f0214d 100644 --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml @@ -32,9 +32,6 @@ select: required: - compatible -allOf: - - $ref: snps,dwmac.yaml# - properties: compatible: oneOf: @@ -114,6 +111,24 @@ required: - compatible - clocks - clock-names + - rockchip,grf + +allOf: + - $ref: snps,dwmac.yaml# + + - if: + properties: + compatible: + contains: + enum: + - rockchip,rk3576-gmac + - rockchip,rk3588-gmac + then: + required: + - rockchip,php-grf + else: + properties: + rockchip,php-grf: false unevaluatedProperties: false
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@kwiboo.se> --- Changes in v2: - Reword the commit message - Disable rockchip,php-grf for other GMACs than RK3576 and RK3588 The pending rockchip,rk3562-gmac compatible [1] must also be added to the list of compatible that require rockchip,php-grf. [1] https://lore.kernel.org/r/20250227110652.2342729-1-kever.yang@rock-chips.com/ --- .../bindings/net/rockchip-dwmac.yaml | 21 ++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-)