On 16/01/2024 07:50, Delphine CC Chiu wrote:
> Add default device tree settings for the 6 I3C controllers embedded in
> the aspeed-g6 family SOCs.
>
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 148 ++++++++++++++++++++++++
> 1 file changed, 148 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> index c4d1faade8be..ed5021001e7f 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> +++ b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi
> @@ -13,6 +13,12 @@ / {
> interrupt-parent = <&gic>;
>
> aliases {
> + i3c0 = &i3c0;
> + i3c1 = &i3c1;
> + i3c2 = &i3c2;
> + i3c3 = &i3c3;
> + i3c4 = &i3c4;
> + i3c5 = &i3c5;
> i2c0 = &i2c0;
> i2c1 = &i2c1;
> i2c2 = &i2c2;
> @@ -577,6 +583,13 @@ wdt4: watchdog@1e7850c0 {
> status = "disabled";
> };
>
> + i3c: bus@1e7a0000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x1e7a0000 0x8000>;
> + };
> +
> peci0: peci-controller@1e78b000 {
> compatible = "aspeed,ast2600-peci";
> reg = <0x1e78b000 0x100>;
> @@ -1139,3 +1152,138 @@ i2c15: i2c-bus@800 {
> status = "disabled";
> };
> };
> +
> +&i3c {
> + i3c_global: i3cg@0 {
Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
> + reg = <0x0 0x1000>;
> + compatible = "aspeed,ast2600-i3c-global", "syscon";
There is no such compatible.
> + };
> +
> + i3c0: i3c0@2000 {
Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
Anyway, please respect DTS coding style for order of properties.
Compatible is always first.
> + compatible = "aspeed,ast2600-i3c", "syscon";
It does not look like you tested the DTS against bindings. Please run
`make dtbs_check W=1` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).
Best regards,
Krzysztof
