[PATCH] arm64: qcom: sc7180: trogdor: Add ADC nodes and thermal zone for charger thermistor

[Matthias Kaehlcke]

From: Antony Wang <antony_w...@compal.corp-partner.google.com>

Trogdor has a thermistor to monitor the temperature of the charger IC.
Add the ADC (monitor) nodes and a thermal zone for this thermistor.

Signed-off-by: Antony Wang <antony_w...@compal.corp-partner.google.com>
[ mka: tweaked commit message ]
Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
---

 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 36 ++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi 
b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index bf875589d364..f68305c35c74 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -13,6 +13,23 @@
 #include "pm6150.dtsi"
 #include "pm6150l.dtsi"
 
+/ {
+       thermal-zones {
+               charger-thermal {
+                       polling-delay-passive = <0>;
+                       polling-delay = <0>;
+
+                       thermal-sensors = <&pm6150_adc_tm 1>;
+
+                       trips {
+                               temperature = <125000>;
+                               hysteresis = <1000>;
+                               type = "critical";
+                       };
+               };
+       };
+};
+
 /*
  * Reserved memory changes
  *
@@ -733,6 +750,25 @@ &mdss {
        status = "okay";
 };
 
+&pm6150_adc {
+       charger-thermistor@4f {
+               reg = <ADC5_AMUX_THM3_100K_PU>;
+               qcom,ratiometric;
+               qcom,hw-settle-time = <200>;
+       };
+};
+
+&pm6150_adc_tm {
+       status = "okay";
+
+       charger-thermistor@1 {
+               reg = <1>;
+               io-channels = <&pm6150_adc ADC5_AMUX_THM3_100K_PU>;
+               qcom,ratiometric;
+               qcom,hw-settle-time-us = <200>;
+       };
+};
+
 &pm6150_pwrkey {
        status = "disabled";
 };
-- 
2.29.1.341.ge80a0c044ae-goog