Configure the ADC and thermal zone for the thermistor next to the
UFS+RAM chip which is connected to GPIO_12 of PM7250B. It is used to
measure the temperature of that area of the PCB.
Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 40 ++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
index 8ab30c01712e0b7c0cc1b403e0fe01650315b9e2..fdc62f1b1c5a398abaa71818fdf2858fdc445d28 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
@@ -207,6 +207,20 @@ active-config0 {
};
};
+ mem-thermal {
+ polling-delay-passive = <0>;
+
+ thermal-sensors = <&pm7250b_adc_tm 2>;
+
+ trips {
+ active-config0 {
+ temperature = <125000>;
+ hysteresis = <1000>;
+ type = "passive";
+ };
+ };
+ };
+
pm8008-thermal {
polling-delay-passive = <100>;
thermal-sensors = <&pm8008>;
@@ -679,6 +693,9 @@ &ipa {
};
&pm7250b_adc {
+ pinctrl-0 = <&pm7250b_adc_default>;
+ pinctrl-names = "default";
+
channel@4d {
reg = <ADC5_AMUX_THM1_100K_PU>;
qcom,ratiometric;
@@ -694,6 +711,14 @@ channel@4f {
qcom,pre-scaling = <1 1>;
label = "conn_therm";
};
+
+ channel@53 {
+ reg = <ADC5_GPIO2_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ qcom,pre-scaling = <1 1>;
+ label = "mem_therm";
+ };
};
&pm7250b_adc_tm {
@@ -712,6 +737,21 @@ conn-therm@1 {
qcom,ratiometric;
qcom,hw-settle-time-us = <200>;
};
+
+ mem-therm@2 {
+ reg = <2>;
+ io-channels = <&pm7250b_adc ADC5_GPIO2_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time-us = <200>;
+ };
+};
+
+&pm7250b_gpios {
+ pm7250b_adc_default: adc-default-state {
+ pins = "gpio12";
+ function = PMIC_GPIO_FUNC_NORMAL;
+ bias-high-impedance;
+ };
};
&pm7325_gpios {
---
base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
change-id: 20241002-fp5-ufs-therm-0f1649d5d212
Best regards,
--
Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
