Re: [PATCH v3 2/6] dt-bindings: thermal: r9a09g047-tsu: Document the TSU unit

[Krzysztof Kozlowski]

On Sat, Mar 15, 2025 at 09:12:12AM +0100, John Madieu wrote:
> The Renesas RZ/G3E SoC includes a Thermal Sensor Unit (TSU) block designed
> to measure the junction temperature. The device provides real-time temperature
> measurements for thermal management, utilizing a single dedicated channel
> (channel 1) for temperature sensing.

Please wrap commit message according to Linux coding style / submission
process (neither too early nor over the limit):
https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597

Please run scripts/checkpatch.pl and fix reported warnings. After that,
run also 'scripts/checkpatch.pl --strict' and (probably) fix more
warnings. Some warnings can be ignored, especially from --strict run,
but the code here looks like it needs a fix. Feel free to get in touch
if the warning is not clear.

> 
> Signed-off-by: John Madieu <john.madieu.xa@xxxxxxxxxxxxxx>
> ---
> v1 -> v2:
>  * Fix reg property specifier to get rid of yamlint warnings
>  * Fix IRQ name to reflect TSU expectations

... 

> +  interrupts:
> +    description: |
> +      Interrupt specifiers for the TSU:
> +      - S12TSUADI1: Conversion complete interrupt signal (pulse)
> +      - S12TSUADCMPI1: Comparison result interrupt signal (level)

Same problems as before - you need to list and describe items to have
constraints. Otherwise why 5 interrupts are allowed but only two
interrupt-names (test this)?

There is no syntax like above in any other bindings. If you found such,
please share the filename so we can fix it.

> +
> +  interrupt-names:
> +    items:
> +      - const: adi
> +      - const: adcmpi
> +
> +  "#thermal-sensor-cells":
> +    const: 0
> +
> +  renesas,tsu-calibration-sys:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: |
> +      Phandle to the system controller (sys) that contains the TSU
> +      calibration values used for temperature calculations.
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - resets
> +  - power-domains
> +  - interrupts
> +  - interrupt-names
> +  - "#thermal-sensor-cells"
> +  - renesas,tsu-calibration-sys
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/renesas,r9a09g047-cpg.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    tsu: thermal@14002000 {
> +        compatible = "renesas,r9a09g047-tsu";
> +        reg = <0x14002000 0x1000>;
> +        clocks = <&cpg CPG_MOD 0x10a>;
> +        resets = <&cpg 0xf8>;
> +        power-domains = <&cpg>;
> +        interrupts = <GIC_SPI 250 IRQ_TYPE_EDGE_RISING>,
> +                     <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH>;
> +        interrupt-names = "adi", "adcmpi";
> +        #thermal-sensor-cells = <0>;
> +        renesas,tsu-calibration-sys = <&sys>;
> +    };
> +
> +    thermal-zones {

Drop the node, no need to show how to use provider binding.

Best regards,
Krzysztof