diff mbox series

[v3,3/7] arm64: dts: ti: k3-am62a-wakeup: add VTM node

Message ID 20230405215328.3755561-4-bb@ti.com
State Accepted
Commit 225312fbaf37bb283dbc92a0a1d4dfe58629ab64
Headers show
Series [v3,1/7] arm64: dts: ti: k3-am64-main: add VTM node | expand

Commit Message

Bryan Brattlof April 5, 2023, 9:53 p.m. UTC 
The am62ax supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with three associated temperature monitors
located in various hot spots of the die.

Signed-off-by: Bryan Brattlof <bb@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi | 47 ++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi  |  8 ++++
 arch/arm64/boot/dts/ti/k3-am62a.dtsi         |  2 +
 3 files changed, 57 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
new file mode 100644
index 0000000000000..85ce545633ea5
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
@@ -0,0 +1,47 @@ 
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+	main0_thermal: main0-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&wkup_vtm0 0>;
+
+		trips {
+			main0_crit: main0-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+
+	main1_thermal: main1-thermal {
+		polling-delay-passive = <250>;	/* milliSeconds */
+		polling-delay = <500>;		/* milliSeconds */
+		thermal-sensors = <&wkup_vtm0 1>;
+
+		trips {
+			main1_crit: main1-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+
+	main2_thermal: main2-thermal {
+	       polling-delay-passive = <250>;	/* milliSeconds */
+	       polling-delay = <500>;		/* milliSeconds */
+	       thermal-sensors = <&wkup_vtm0 2>;
+
+		trips {
+			main2_crit: main2-crit {
+				temperature = <125000>;	/* milliCelsius */
+				hysteresis = <2000>;	/* milliCelsius */
+				type = "critical";
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index 81d984414fd4a..9bdafead7199a 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -51,4 +51,12 @@  wkup_rtc0: rtc@2b1f0000 {
 		wakeup-source;
 		status = "disabled";
 	};
+
+	wkup_vtm0: temperature-sensor@b00000 {
+		compatible = "ti,j7200-vtm";
+		reg = <0x00 0xb00000 0x00 0x400>,
+		      <0x00 0xb01000 0x00 0x400>;
+		power-domains = <&k3_pds 95 TI_SCI_PD_EXCLUSIVE>;
+		#thermal-sensor-cells = <1>;
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a.dtsi b/arch/arm64/boot/dts/ti/k3-am62a.dtsi
index fe60c9ce21e3d..61a210ecd5ff1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a.dtsi
@@ -115,6 +115,8 @@  cbass_wakeup: bus@b00000 {
 				 <0x00 0x78100000 0x00 0x78100000 0x00 0x00008000>; /* DM R5 BTCM*/
 		};
 	};
+
+	#include "k3-am62a-thermal.dtsi"
 };
 
 /* Now include the peripherals for each bus segments */