linux-kernel - Re: [PATCH] arm64: dts: qcom: monaco-pmics: Add PON power key and reset inputs

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Message-ID: <0b4ac3c1-11b3-4991-83c2-0c39a81baa8f@oss.qualcomm.com>
Date: Fri, 30 Jan 2026 12:18:53 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Rakesh Kota <rakesh.kota@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.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, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kamal.wadhwa@....qualcomm.com
Subject: Re: [PATCH] arm64: dts: qcom: monaco-pmics: Add PON power key and
 reset inputs

On 1/22/26 7:59 AM, Rakesh Kota wrote:
> Add the Power On (PON) peripheral with power key and reset input
> support for the PMM8654AU PMIC on Monaco platforms.
> 
> Signed-off-by: Rakesh Kota <rakesh.kota@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/monaco-pmics.dtsi | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> index e990d7367719beaa9e0cea87d9c183ae18c3ebc8..051407cd83eef8eace8521084b1ad012a5192ace 100644
> --- a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> +++ b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> @@ -13,6 +13,26 @@ pmm8620au_0: pmic@0 {
>  		#address-cells = <1>;
>  		#size-cells = <0>;
>  
> +		pmm8654au_0_pon: pon@...0 {
> +			compatible = "qcom,pmk8350-pon";

I see pmm8655x has some slight changes vs pmk8350 (more configs but
generally backwards compatible if we don't use them), let's add a
separate compatible in bindings so that we can maybe handle these
differences down the line:

diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
index 979a377cb4ff..14b85b0d97da 100644
--- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
@@ -17,12 +17,16 @@ description: |
 
 properties:
   compatible:
-    enum:
-      - qcom,pm8916-pon
-      - qcom,pm8941-pon
-      - qcom,pms405-pon
-      - qcom,pm8998-pon
-      - qcom,pmk8350-pon
+    oneOf:
+      - enum:
+          - qcom,pm8916-pon
+          - qcom,pm8941-pon
+          - qcom,pms405-pon
+          - qcom,pm8998-pon
+          - qcom,pmk8350-pon
+      - items:
+          - const: qcom,pmm8654au-pon
+          - const: qcom,pmk8350-pon
 


Konrad