linux-kernel - Re: [PATCH v4 2/3] dt-bindings: pinctrl: qcom: Add SDM660 LPI pinctrl

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Message-ID: <8bb9d7ff-3a50-4ea7-8c89-757fc7ae75cc@gmail.com>
Date: Fri, 29 Aug 2025 20:19:52 +0300
From: Nickolay Goppen <goppennick2004@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 ~postmarketos/upstreaming@...ts.sr.ht,
 Richard Acayan <mailingradian@...il.com>
Subject: Re: [PATCH v4 2/3] dt-bindings: pinctrl: qcom: Add SDM660 LPI pinctrl


29.08.2025 09:06, Krzysztof Kozlowski пишет:
> On 28/08/2025 21:23, Nickolay Goppen via B4 Relay wrote:
>> From: Nickolay Goppen <setotau@...dex.ru>
>>
>> Add bindings for pin controller in SDM660 Low Power Audio SubSystem
>> LPASS).
>>
>> Co-developed-by: Richard Acayan <mailingradian@...il.com>
>> Signed-off-by: Richard Acayan <mailingradian@...il.com>
>> Signed-off-by: Nickolay Goppen <setotau@...dex.ru>
> Completely reversed/messed chain.
>
> ...
>
>> +
>> +properties:
>> +  compatible:
>> +    const: qcom,sdm660-lpass-lpi-pinctrl
>> +
>> +  reg:
>> +    items:
>> +      - description: LPASS LPI TLMM Control and Status registers
>
> Clocks missing, maybe some other properties as well.

I've read a downstream LPI-related dts and didn't find any clock-related 
properties.

Also sc7280-lpass-lpi dt-binding doesn't have any clock-related properties.

>
>> +
>> +patternProperties:
>> +  "-state$":
>> +    oneOf:
>> +      - $ref: "#/$defs/qcom-sdm660-lpass-state"
>> +      - patternProperties:
>> +          "-pins$":
>> +            $ref: "#/$defs/qcom-sdm660-lpass-state"
>> +        additionalProperties: false
>> +
>> +$defs:
>> +  qcom-sdm660-lpass-state:
>> +    type: object
>> +    description:
>> +      Pinctrl node's client devices use subnodes for desired pin configuration.
>> +      Client device subnodes use below standard properties.
>> +    $ref: qcom,lpass-lpi-common.yaml#/$defs/qcom-tlmm-state
>> +    unevaluatedProperties: false
>> +
>> +    properties:
>> +      pins:
>> +        description:
>> +          List of gpio pins affected by the properties specified in this
>> +          subnode.
>> +        items:
>> +          pattern: "^gpio([0-9]|[1-2][0-9]|3[0-1])$"
>> +
>> +      function:
>> +        enum: [ gpio, comp_rx, dmic12, dmic34, mclk0, pdm_2_gpios,
>> +                pdm_clk, pdm_rx, pdm_sync ]
>> +        description:
>> +          Specify the alternative function to be configured for the specified
>> +          pins.
>> +
>> +allOf:
>> +  - $ref: qcom,lpass-lpi-common.yaml#
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +unevaluatedProperties: false
>> +
>> +examples:
>> +  - |
>> +    lpi_tlmm: pinctrl@...70000 {
>> +        compatible = "qcom,sdm660-lpass-lpi-pinctrl";
>> +        reg = <0x15070000 0x20000>;
>> +        gpio-controller;
>> +        #gpio-cells = <2>;
>> +        gpio-ranges = <&lpi_tlmm 0 0 32>;
> That's quite incomplete example. Missing at least one pinmux node. See
> other files.
>
Ok, I've got it. It will be added in the next iteration.
>> +    };
>>
>
> Best regards,
> Krzysztof