linux-kernel - [PATCH v3 4/4] arm64: dts: qcom: sdm845: mtp: Add vadc channels and thermal zones

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Date:   Mon,  4 Oct 2021 20:25:31 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Thara Gopinath <thara.gopinath@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/4] arm64: dts: qcom: sdm845: mtp: Add vadc channels and thermal zones

Downstream defines four ADC channels related to thermal sensors external
to the PM8998 and two channels for internal voltage measurements.

Add these to the upstream SDM845 MTP, describe the thermal monitor
channels and add thermal_zones for these.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---

Changes since v2:
- Added missing qcom,ratiometric and qcom,hw-settle-time-us from the ADC channels

 arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 140 ++++++++++++++++++++++++
 1 file changed, 140 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
index 52dd7a858231..9aa21399b7ee 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
@@ -10,6 +10,8 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include "sdm845.dtsi"
+#include "pm8998.dtsi"
+#include "pmi8998.dtsi"
 
 / {
 	model = "Qualcomm Technologies, Inc. SDM845 MTP";
@@ -46,6 +48,68 @@ vreg_s4a_1p8: pm8998-smps4 {
 
 		vin-supply = <&vph_pwr>;
 	};
+
+	thermal-zones {
+		xo_thermal: xo-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm8998_adc_tm 1>;
+
+			trips {
+				trip-point {
+					temperature = <125000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+			};
+		};
+
+		msm_thermal: msm-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm8998_adc_tm 2>;
+
+			trips {
+				trip-point {
+					temperature = <125000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+			};
+		};
+
+		pa_thermal: pa-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm8998_adc_tm 3>;
+
+			trips {
+				trip-point {
+					temperature = <125000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+			};
+		};
+
+		quiet_thermal: quiet-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm8998_adc_tm 4>;
+
+			trips {
+				trip-point {
+					temperature = <125000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+			};
+		};
+	};
 };
 
 &adsp_pas {
@@ -469,6 +533,82 @@ &mss_pil {
 	firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mbn";
 };
 
+&pm8998_adc {
+	adc-chan@4c {
+		reg = <ADC5_XO_THERM_100K_PU>;
+		label = "xo_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	adc-chan@4d {
+		reg = <ADC5_AMUX_THM1_100K_PU>;
+		label = "msm_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	adc-chan@4f {
+		reg = <ADC5_AMUX_THM3_100K_PU>;
+		label = "pa_therm1";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	adc-chan@51 {
+		reg = <ADC5_AMUX_THM5_100K_PU>;
+		label = "quiet_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	adc-chan@83 {
+		reg = <ADC5_VPH_PWR>;
+		label = "vph_pwr";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	adc-chan@85 {
+		reg = <ADC5_VCOIN>;
+		label = "vcoin";
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+};
+
+&pm8998_adc_tm {
+	status = "okay";
+
+	xo-thermistor@1 {
+		reg = <1>;
+		io-channels = <&pm8998_adc ADC5_XO_THERM_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	msm-thermistor@2 {
+		reg = <2>;
+		io-channels = <&pm8998_adc ADC5_AMUX_THM1_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	pa-thermistor@3 {
+		reg = <3>;
+		io-channels = <&pm8998_adc ADC5_AMUX_THM3_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	quiet-thermistor@4 {
+		reg = <4>;
+		io-channels = <&pm8998_adc ADC5_AMUX_THM5_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+};
+
 &qupv3_id_1 {
 	status = "okay";
 };
-- 
2.29.2