linux-kernel - Re: [PATCH 03/10] arm64: dts: qcom: Add a device tree for PMK8350 on SID6

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Message-ID: <20221110035219.3ohl2637fou6427t@builder.lan>
Date:   Wed, 9 Nov 2022 21:52:19 -0600
From:   Bjorn Andersson <andersson@...nel.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, agross@...nel.org,
        krzysztof.kozlowski@...aro.org, patches@...aro.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/10] arm64: dts: qcom: Add a device tree for PMK8350 on
 SID6

On Wed, Nov 09, 2022 at 12:12:28PM +0100, Konrad Dybcio wrote:
> PMK8350 is shipped on SID6 with some SoCs, for example with SM6375.
> Add a DT with the SID changed to allow it to work.
> 
> Unfortunately, the entire DT needs to be copied even if the diff is
> very little, as the node names are not unique. Including pm6125 and
> pmk8350 together for example, would make pmk8350 overwrite the pm6125
> node, as both are defined as 'pmic@0'.
> 

This seems to work in this case, but we have the same situation in other
places where the labels just don't add up with the schematics.

That's why I ended up just defining all the pmics in sc8280xp-pmics.dtsi
and then the separate set in sa8295p-adp.dts.

Regards,
Bjorn

> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/pmk8350_sid6.dtsi | 73 ++++++++++++++++++++++
>  1 file changed, 73 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/pmk8350_sid6.dtsi
> 
> diff --git a/arch/arm64/boot/dts/qcom/pmk8350_sid6.dtsi b/arch/arm64/boot/dts/qcom/pmk8350_sid6.dtsi
> new file mode 100644
> index 000000000000..00390f8b9c97
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/pmk8350_sid6.dtsi
> @@ -0,0 +1,73 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2022, Linaro Limited
> + */
> +
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/input/linux-event-codes.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/spmi/spmi.h>
> +
> +&spmi_bus {
> +	pmk8350: pmic@6 {
> +		compatible = "qcom,pmk8350", "qcom,spmi-pmic";
> +		reg = <0x6 SPMI_USID>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		pmk8350_pon: pon@...0 {
> +			compatible = "qcom,pm8998-pon";
> +			reg = <0x1300>;
> +
> +			pon_pwrkey: pwrkey {
> +				compatible = "qcom,pmk8350-pwrkey";
> +				interrupts = <0x6 0x13 0x7 IRQ_TYPE_EDGE_BOTH>;
> +				linux,code = <KEY_POWER>;
> +				status = "disabled";
> +			};
> +
> +			pon_resin: resin {
> +				compatible = "qcom,pmk8350-resin";
> +				interrupts = <0x6 0x13 0x6 IRQ_TYPE_EDGE_BOTH>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		pmk8350_vadc: adc@...0 {
> +			compatible = "qcom,spmi-adc7";
> +			reg = <0x3100>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			interrupts = <0x6 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
> +			#io-channel-cells = <1>;
> +		};
> +
> +		pmk8350_adc_tm: adc-tm@...0 {
> +			compatible = "qcom,adc-tm7";
> +			reg = <0x3400>;
> +			interrupts = <0x6 0x34 0x0 IRQ_TYPE_EDGE_RISING>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			#thermal-sensor-cells = <1>;
> +			status = "disabled";
> +		};
> +
> +		pmk8350_rtc: rtc@...0 {
> +			compatible = "qcom,pmk8350-rtc";
> +			reg = <0x6100>, <0x6200>;
> +			reg-names = "rtc", "alarm";
> +			interrupts = <0x6 0x62 0x1 IRQ_TYPE_EDGE_RISING>;
> +			status = "disabled";
> +		};
> +
> +		pmk8350_gpios: gpio@...0 {
> +			compatible = "qcom,pmk8350-gpio", "qcom,spmi-gpio";
> +			reg = <0xb000>;
> +			gpio-controller;
> +			gpio-ranges = <&pmk8350_gpios 0 0 4>;
> +			#gpio-cells = <2>;
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +		};
> +	};
> +};
> -- 
> 2.38.1
>