linux-hardening - Re: [PATCH v5 6/6] arm64: dts: qcom: sm6125: Initial support for xiaomi-laurel-sprout

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Date:   Sun, 1 Jan 2023 16:44:27 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Lux Aliaga <they@...t.lgbt>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Tony Luck <tony.luck@...el.com>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, martin.botka@...ainline.org,
        marijn.suijten@...ainline.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v5 6/6] arm64: dts: qcom: sm6125: Initial support for
 xiaomi-laurel-sprout

On 31/12/2022 23:24, Lux Aliaga wrote:
> Adds support for the Xiaomi Mi A3 (xiaomi-laurel-sprout). Here's a
> summary on what's working.
> 
> - dmesg output to bootloader preconfigured display
> - USB
> - UFS
> - SD card


(...)

> +	};
> +
> +	extcon_usb: usb-id {
> +		compatible = "linux,extcon-usb-gpio";
> +		id-gpio = <&tlmm 102 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	gpio-keys {
> +		status = "okay";

Drop.

> +		compatible = "gpio-keys";
> +		autorepeat;
> +
> +		key-vol-up {
> +			label = "Volume Up";
> +			gpios = <&pm6125_gpio 5 GPIO_ACTIVE_LOW>;
> +			linux,input-type = <1>;
> +			linux,code = <KEY_VOLUMEUP>;
> +			gpio-key,wakeup;
> +			debounce-interval = <15>;
> +		};
> +	};
> +
> +	thermal-zones {
> +		rf-pa0-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pm6125_adc_tm 0>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "critical";
> +				};
> +			};
> +		};
> +
> +		quiet-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <5000>;
> +			thermal-sensors = <&pm6125_adc_tm 1>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "critical";
> +				};
> +			};
> +		};
> +
> +		xo-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pm6125_adc_tm 2>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "critical";
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&hsusb_phy1 {
> +	vdd-supply = <&vreg_l7a>;
> +	vdda-pll-supply = <&vreg_l10a>;
> +	vdda-phy-dpdm-supply = <&vreg_l15a>;
> +	status = "okay";
> +};
> +
> +&pm6125_adc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&camera_flash_therm &emmc_ufs_therm>;
> +
> +	rf-pa0-therm@4d {
> +		reg = <ADC5_AMUX_THM1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +	};
> +
> +	quiet-therm@4e {
> +		reg = <ADC5_AMUX_THM2_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +	};
> +
> +	camera-flash-therm@52 {
> +		reg = <ADC5_GPIO1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +	};
> +
> +	emmc-ufs-therm@54 {
> +		reg = <ADC5_GPIO3_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +	};
> +};
> +
> +&pm6125_adc_tm {
> +	status = "okay";
> +
> +	rf-pa0-therm@0 {
> +		reg = <0>;
> +		io-channels = <&pm6125_adc ADC5_AMUX_THM1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
> +	};
> +
> +	quiet-therm@1 {
> +		reg = <1>;
> +		io-channels = <&pm6125_adc ADC5_AMUX_THM2_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
> +	};
> +
> +	xo-therm@2 {
> +		reg = <2>;
> +		io-channels = <&pm6125_adc ADC5_XO_THERM_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
> +	};
> +};
> +
> +&pm6125_gpio {
> +	camera_flash_therm: camera-flash-therm-state {
> +		pins = "gpio3";
> +		function = PMIC_GPIO_FUNC_NORMAL;
> +		bias-high-impedance;
> +	};
> +
> +	emmc_ufs_therm: emmc-ufs-therm-state {
> +		pins = "gpio6";
> +		function = PMIC_GPIO_FUNC_NORMAL;
> +		bias-high-impedance;
> +	};
> +
> +	key_vol_up: key_vol_up {


No underscores in node names, missing state suffix.

> +		pins = "gpio5";
> +		function = PMIC_GPIO_FUNC_NORMAL;
> +		input-enable;
> +		bias-pull-up;
> +	};
> +};
> +

Best regards,
Krzysztof