Re: [PATCH v2 05/15] arm64: dts: qcom: Add PM8937 PMIC

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

On Thu, Oct 31, 2024 at 02:19:46AM +0100, Barnabás Czémán wrote:
> From: Dang Huynh <danct12@xxxxxxxxxx>
> 
> The PM8937 features integrated peripherals like ADC, GPIO controller,
> MPPs, PON keys and others.
> 
> Add the device tree so that any boards with this PMIC can use it.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Signed-off-by: Dang Huynh <danct12@xxxxxxxxxx>
> Signed-off-by: Barnabás Czémán <barnabas.czeman@xxxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/pm8937.dtsi | 216 +++++++++++++++++++++++++++++++++++
>  1 file changed, 216 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/pm8937.dtsi b/arch/arm64/boot/dts/qcom/pm8937.dtsi
> new file mode 100644
> index 0000000000000000000000000000000000000000..34e2b4cd0d5f4f92c16bb20f53e4520544a644bc
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/pm8937.dtsi
> @@ -0,0 +1,216 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023, Dang Huynh <danct12@xxxxxxxxxx>
> + */
> +
> +#include <dt-bindings/iio/qcom,spmi-vadc.h>
> +#include <dt-bindings/input/linux-event-codes.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/pinctrl/qcom,pmic-mpp.h>
> +#include <dt-bindings/spmi/spmi.h>
> +
> +/ {
> +	thermal-zones {
> +		pm8937-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pm8937_temp>;
> +
> +			trips {
> +				trip0 {
> +					temperature = <105000>;
> +					hysteresis = <0>;
> +					type = "passive";
> +				};
> +
> +				trip1 {
> +					temperature = <125000>;
> +					hysteresis = <0>;
> +					type = "hot";
> +				};
> +
> +				trip2 {
> +					temperature = <145000>;
> +					hysteresis = <0>;
> +					type = "critical";
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&spmi_bus {
> +	pmic@0 {
> +		compatible = "qcom,pm8937", "qcom,spmi-pmic";
> +		reg = <0x0 SPMI_USID>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		pon@800 {
> +			compatible = "qcom,pm8916-pon";
> +			reg = <0x800>;
> +			mode-bootloader = <0x2>;
> +			mode-recovery = <0x1>;
> +
> +			pm8937_pwrkey: pwrkey {
> +				compatible = "qcom,pm8941-pwrkey";
> +				interrupts = <0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
> +				debounce = <15625>;
> +				bias-pull-up;
> +				linux,code = <KEY_POWER>;
> +			};
> +
> +			pm8937_resin: resin {
> +				compatible = "qcom,pm8941-resin";
> +				interrupts = <0 0x8 1 IRQ_TYPE_EDGE_BOTH>;
> +				debounce = <15625>;
> +				bias-pull-up;
> +				status = "disabled";
> +			};
> +		};
> +
> +		pm8937_gpios: gpio@c000 {
> +			compatible = "qcom,pm8937-gpio", "qcom,spmi-gpio";
> +			reg = <0xc000>;
> +			gpio-controller;
> +			gpio-ranges = <&pm8937_gpios 0 0 8>;
> +			#gpio-cells = <2>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +		};
> +
> +		pm8937_mpps: mpps@a000 {
> +			compatible = "qcom,pm8937-mpp", "qcom,spmi-mpp";
> +			reg = <0xa000>;
> +			gpio-controller;
> +			gpio-ranges = <&pm8937_mpps 0 0 4>;
> +			#gpio-cells = <2>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +		};
> +
> +		pm8937_temp: temp-alarm@2400 {
> +			compatible = "qcom,spmi-temp-alarm";
> +			reg = <0x2400>;
> +			interrupts = <0 0x24 0 IRQ_TYPE_EDGE_RISING>;
> +			io-channels = <&pm8937_vadc VADC_DIE_TEMP>;
> +			io-channel-names = "thermal";
> +			#thermal-sensor-cells = <0>;
> +		};
> +
> +		pm8937_vadc: adc@3100 {
> +			compatible = "qcom,spmi-vadc";
> +			reg = <0x3100>;
> +			interrupts = <0 0x31 0 IRQ_TYPE_EDGE_RISING>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			#io-channel-cells = <1>;
> +
> +			channel@5 {
> +				reg = <VADC_VCOIN>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "vcoin";

Are all the channels available and usable on all the boards?

> +			};
> +
> +			channel@7 {
> +				reg = <VADC_VSYS>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "vph_pwr";
> +			};
> +
> +			channel@8 {
> +				reg = <VADC_DIE_TEMP>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "die_temp";
> +			};
> +
> +			channel@9 {
> +				reg = <VADC_REF_625MV>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "ref_625mv";
> +			};
> +
> +			channel@a {
> +				reg = <VADC_REF_1250MV>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "ref_1250mv";
> +			};
> +
> +			channel@c {
> +				reg = <VADC_SPARE1>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "ref_buf_625mv";
> +			};
> +
> +			channel@e {
> +				reg = <VADC_GND_REF>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "ref_gnd";
> +			};
> +
> +			channel@f {
> +				reg = <VADC_VDD_VADC>;
> +				qcom,pre-scaling = <1 1>;
> +				label = "ref_vdd";
> +			};
> +
> +			channel@11 {
> +				reg = <VADC_P_MUX2_1_1>;
> +				qcom,pre-scaling = <1 1>;
> +				qcom,ratiometric;
> +				qcom,hw-settle-time = <200>;
> +				label = "pa_therm1";
> +			};
> +
> +			channel@13 {
> +				reg = <VADC_P_MUX4_1_1>;
> +				qcom,pre-scaling = <1 1>;
> +				qcom,ratiometric;
> +				qcom,hw-settle-time = <200>;
> +				label = "case_therm";

This one looks particularly board-specific. Please move device-specific
channels to the board.dtsi.

> +			};
> +
> +			channel@32 {
> +				reg = <VADC_LR_MUX3_XO_THERM>;
> +				qcom,pre-scaling = <1 1>;
> +				qcom,ratiometric;
> +				qcom,hw-settle-time = <200>;
> +				label = "xo_therm";
> +			};
> +
> +			channel@36 {
> +				reg = <VADC_LR_MUX7_HW_ID>;
> +				qcom,pre-scaling = <1 1>;
> +				qcom,ratiometric;
> +				qcom,hw-settle-time = <200>;
> +				label = "pa_therm0";
> +			};
> +
> +			channel@3c {
> +				reg = <VADC_LR_MUX3_BUF_XO_THERM>;
> +				qcom,pre-scaling = <1 1>;
> +				qcom,ratiometric;
> +				qcom,hw-settle-time = <200>;
> +				label = "xo_therm_buf";
> +			};
> +		};
> +
> +		rtc@6000 {
> +			compatible = "qcom,pm8941-rtc";
> +			reg = <0x6000>, <0x6100>;
> +			reg-names = "rtc", "alarm";
> +			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
> +		};
> +	};
> +
> +	pmic@1 {
> +		compatible = "qcom,pm8937", "qcom,spmi-pmic";
> +		reg = <0x1 SPMI_USID>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		pm8937_spmi_regulators: regulators {
> +			compatible = "qcom,pm8937-regulators";
> +		};
> +	};
> +};
> 
> -- 
> 2.47.0
> 

-- 
With best wishes
Dmitry