Re: [PATCH v2 3/4] arm64: dts: qcom: monaco-pmics: Add ADC support for PMM8620AU

[Loic Poulain]

On Sun, Jun 14, 2026 at 10:06 AM Jishnu Prakash
<jishnu.prakash@xxxxxxxxxxxxxxxx> wrote:
>
> From: Ayyagari Ushasreevalli <aushasre@xxxxxxxxxxxxxxxx>
>
> Add ADC nodes for PMM8620AU PMIC instances (SID 0 and SID 2)
> present on the Monaco platform.
>
> Each ADC node exposes the following ADC channels:
>  - DIE_TEMP: PMIC die temperature channel
>  - VPH_PWR: Battery/supply voltage channel
>
> Signed-off-by: Ayyagari Ushasreevalli <aushasre@xxxxxxxxxxxxxxxx>
> Signed-off-by: Jishnu Prakash <jishnu.prakash@xxxxxxxxxxxxxxxx>

Tested ADC thermistor reading on Arduino Ventuno Q (Monaco Monza).

Tested-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>

> ---
>  arch/arm64/boot/dts/qcom/monaco-pmics.dtsi | 43 ++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> index e990d7367719..232bcb942b54 100644
> --- a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> +++ b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
> @@ -5,6 +5,7 @@
>
>  #include <dt-bindings/input/input.h>
>  #include <dt-bindings/spmi/spmi.h>
> +#include "qcom-adc5-gen3.h"
>
>  &spmi_bus {
>         pmm8620au_0: pmic@0 {
> @@ -20,6 +21,27 @@ pmm8620au_0_rtc: rtc@6100 {
>                         interrupts = <0x0 0x62 0x1 IRQ_TYPE_EDGE_RISING>;
>                 };
>
> +               pmm8620au_0_adc: adc@8000 {
> +                       compatible = "qcom,spmi-adc5-gen3";
> +                       reg = <0x8000>;
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +                       interrupts = <0x0 0x80 0x1 IRQ_TYPE_EDGE_RISING>;
> +                       #io-channel-cells = <1>;
> +
> +                       channel@3 {
> +                               reg = <ADC5_GEN3_DIE_TEMP(0)>;
> +                               label = "pmm8620au_0_die_temp";
> +                               qcom,pre-scaling = <1 1>;
> +                       };
> +
> +                       channel@8e {
> +                               reg = <ADC5_GEN3_VPH_PWR(0)>;
> +                               label = "pmm8620au_0_vph_pwr";
> +                               qcom,pre-scaling = <1 3>;
> +                       };
> +               };
> +
>                 pmm8620au_0_gpios: gpio@8800 {
>                         compatible = "qcom,pmm8654au-gpio", "qcom,spmi-gpio";
>                         reg = <0x8800>;
> @@ -37,6 +59,27 @@ pmm8650au_1: pmic@2 {
>                 #address-cells = <1>;
>                 #size-cells = <0>;
>
> +               pmm8650au_1_adc: adc@8000 {
> +                       compatible = "qcom,spmi-adc5-gen3";
> +                       reg = <0x8000>;
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +                       interrupts = <0x2 0x80 0x1 IRQ_TYPE_EDGE_RISING>;
> +                       #io-channel-cells = <1>;
> +
> +                       channel@203 {
> +                               reg = <ADC5_GEN3_DIE_TEMP(2)>;
> +                               label = "pmm8650au_1_die_temp";
> +                               qcom,pre-scaling = <1 1>;
> +                       };
> +
> +                       channel@28e {
> +                               reg = <ADC5_GEN3_VPH_PWR(2)>;
> +                               label = "pmm8650au_1_vph_pwr";
> +                               qcom,pre-scaling = <1 3>;
> +                       };
> +               };
> +
>                 pmm8650au_1_gpios: gpio@8800 {
>                         compatible = "qcom,pmm8654au-gpio", "qcom,spmi-gpio";
>                         reg = <0x8800>;
>
> --
> 2.43.0
>
>