From cebd8064b7a7fb22c62e664037031eeaa27d045d Mon Sep 17 00:00:00 2001
From: David Collins <collinsd@quicinc.com>
Date: Wed, 9 Feb 2022 16:26:44 -0800
Subject: [PATCH] ARM: dts: qcom: add PM8550B TEMP_ALARM_LITE device for Kalama
 boards

Add a qcom-spmi-temp-alarm device for the TEMP_ALARM_LITE
peripheral found in the PM8550B PMIC.  This secondary PMIC
die temperature monitor is used to provide additional thermal
protection to the chip.

Change-Id: I6274ac557d07a93b802bcca5a305fdab7575f7fb
---
 qcom/kalama-pmic-overlay.dtsi |  5 +++++
 qcom/pm8550b.dtsi             | 34 ++++++++++++++++++++++++++++++++++
 qcom/pmk8550.dtsi             |  6 ++++++
 3 files changed, 45 insertions(+)

diff --git a/qcom/kalama-pmic-overlay.dtsi b/qcom/kalama-pmic-overlay.dtsi
index 37b7fb8b..d5adfa4e 100644
--- a/qcom/kalama-pmic-overlay.dtsi
+++ b/qcom/kalama-pmic-overlay.dtsi
@@ -95,6 +95,11 @@
 	io-channel-names = "thermal";
 };
 
+&pm8550b_lite_tz {
+	io-channels = <&pmk8550_vadc PM8550B_ADC5_GEN3_TEMP_ALARM_LITE>;
+	io-channel-names = "thermal";
+};
+
 &pm8550vs_c_tz {
 	io-channels = <&pmk8550_vadc PM8550VS_C_ADC5_GEN3_DIE_TEMP>;
 	io-channel-names = "thermal";
diff --git a/qcom/pm8550b.dtsi b/qcom/pm8550b.dtsi
index d994e80a..ac779325 100644
--- a/qcom/pm8550b.dtsi
+++ b/qcom/pm8550b.dtsi
@@ -21,6 +21,13 @@
 			#thermal-sensor-cells = <0>;
 		};
 
+		pm8550b_lite_tz: qcom,temp-alarm@c00 {
+			compatible = "qcom,spmi-temp-alarm";
+			reg = <0xc00>;
+			interrupts = <0x7 0xc 0x0 IRQ_TYPE_EDGE_BOTH>;
+			#thermal-sensor-cells = <0>;
+		};
+
 		pm8550b_gpios: pinctrl@8800 {
 			compatible = "qcom,pm8550b-gpio";
 			reg = <0x8800>;
@@ -204,6 +211,33 @@
 		};
 	};
 
+	pm8550b_lite_temp_alarm: pm8550b_lite_tz {
+		polling-delay-passive = <100>;
+		polling-delay = <0>;
+		thermal-governor = "step_wise";
+		thermal-sensors = <&pm8550b_lite_tz>;
+
+		trips {
+			trip0 {
+				temperature = <125000>;
+				hysteresis = <0>;
+				type = "passive";
+			};
+
+			trip1 {
+				temperature = <135000>;
+				hysteresis = <0>;
+				type = "critical";
+			};
+
+			trip2 {
+				temperature = <145000>;
+				hysteresis = <0>;
+				type = "critical";
+			};
+		};
+	};
+
 	pm8550b-ibat-lvl0 {
 		polling-delay-passive = <0>;
 		polling-delay = <0>;
diff --git a/qcom/pmk8550.dtsi b/qcom/pmk8550.dtsi
index 81d8b0de..ad6c16a9 100644
--- a/qcom/pmk8550.dtsi
+++ b/qcom/pmk8550.dtsi
@@ -163,6 +163,12 @@
 				qcom,pre-scaling = <1 1>;
 			};
 
+			pm8550b_lite_die_temp {
+				reg = <PM8550B_ADC5_GEN3_TEMP_ALARM_LITE>;
+				label = "pm8550b_lite_die_temp";
+				qcom,pre-scaling = <1 1>;
+			};
+
 			pm8550b_vph_pwr {
 				reg = <PM8550B_ADC5_GEN3_VPH_PWR>;
 				label = "pm8550b_vph_pwr";