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Date:   Wed, 09 Feb 2022 16:19:19 +0000
From:   Rayyan Ansari <rayyan@ansari.sh>
To:     Luca Weiss <luca@z3ntu.xyz>
Cc:     linux-arm-msm@vger.kernel.org,
        ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org,
        Vladimir Lypak <vladimir.lypak@gmail.com>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/15] arm64: dts: qcom: Add PM8953 PMIC
In-Reply-To: <20220112194118.178026-12-luca@z3ntu.xyz>
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 <20220112194118.178026-12-luca@z3ntu.xyz>
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On 2022-01-12 19:41, Luca Weiss wrote:
> From: Vladimir Lypak <vladimir.lypak@gmail.com>
> 
> Add a base DT for PM8953 PMIC, commonly used with MSM8953.
> 
> Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
> Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> ---
>  arch/arm64/boot/dts/qcom/pm8953.dtsi | 90 ++++++++++++++++++++++++++++
>  1 file changed, 90 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/pm8953.dtsi
> 
> diff --git a/arch/arm64/boot/dts/qcom/pm8953.dtsi
> b/arch/arm64/boot/dts/qcom/pm8953.dtsi
> new file mode 100644
> index 000000000000..102555b3f313
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/pm8953.dtsi
> @@ -0,0 +1,90 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/* Copyright (c) 2022, The Linux Foundation. All rights reserved. */
> +
> +#include <dt-bindings/iio/qcom,spmi-vadc.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/input/linux-event-codes.h>
> +#include <dt-bindings/spmi/spmi.h>
> +
> +&spmi_bus {
> +	pmic@0 {
> +		compatible = "qcom,pm8953", "qcom,spmi-pmic";
> +		reg = <0 SPMI_USID>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		rtc@6000 {
> +			compatible = "qcom,pm8941-rtc";
> +			reg = <0x6000>, <0x6100>;
> +			reg-names = "rtc", "alarm";
> +			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
> +		};

Could you sort the nodes by order? The rtc@6000 node should be after 
vadc@3100.

> +
> +		pm8953_pon: pon@800 {
> +			compatible = "qcom,pm8916-pon";
> +			reg = <0x800>;
> +			mode-bootloader = <0x2>;
> +			mode-recovery = <0x1>;
> +
> +			pwrkey {
> +				compatible = "qcom,pm8941-pwrkey";
> +				interrupts = <0x00 0x08 0 IRQ_TYPE_EDGE_BOTH>;
> +				debounce = <15625>;
> +				bias-pull-up;
> +				linux,code = <KEY_POWER>;
> +			};
> +
> +			pm8953_resin: resin {
> +				compatible = "qcom,pm8941-resin";
> +				interrupts = <0x00 0x08 1 IRQ_TYPE_EDGE_BOTH>;
> +				debounce = <15625>;
> +				bias-pull-up;
> +				status = "disabled";
> +			};
> +		};
> +
> +		temp-alarm@2400 {
> +			compatible = "qcom,spmi-temp-alarm";
> +			reg = <0x2400>;
> +			interrupts = <0x0 0x24 0x0 IRQ_TYPE_EDGE_RISING>;
> +			io-channels = <&pm8953_vadc 0x08>;

Could you use VADC_DIE_TEMP here instead of 0x08 like in 
qcom-spmi-temp-alarm.txt?

> +			io-channel-names = "thermal";
> +			#thermal-sensor-cells = <0x00>;

This should be "#thermal-sensor-cells = <0>;" as recommended by docs.

> +		};
> +
> +		pm8953_vadc: vadc@3100 {
> +			compatible = "qcom,spmi-vadc";
> +			reg = <0x3100>;
> +			interrupts = <0x00 0x31 0x00 0x01>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			#io-channel-cells = <1>;
> +
> +			die_temp@8 {
> +				reg = <VADC_DIE_TEMP>;
> +			};
> +			ref_625mv@9 {
> +				reg = <VADC_REF_625MV>;
> +			};
> +			ref_1250v@a {
> +				reg = <VADC_REF_1250MV>;
> +			};
> +			ref_buf_625mv@c {
> +				reg = <VADC_SPARE1>;
> +			};
> +			ref_gnd@e {
> +				reg = <VADC_GND_REF>;
> +			};
> +			ref_vdd@f {
> +				reg = <VADC_VDD_VADC>;
> +			};

Could you use the generic names for each VADC channel as recommended in 
qcom,spmi-vadc.yaml?

> +		};
> +	};
> +
> +	pmic@1 {
> +		compatible = "qcom,pm8953", "qcom,spmi-pmic";
> +		reg = <1 SPMI_USID>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +	};
> +};

With this sorted, add my Reviewed-by.

Reviewed-by: Rayyan Ansari <rayyan@ansari.sh>