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Message-ID: <20221011231727.8090-11-bb@ti.com>
Date: Tue, 11 Oct 2022 18:17:26 -0500
From: Bryan Brattlof <bb@...com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: "Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Amit Kucheria <amitk@...nel.org>,
Zhang Rui <rui.zhang@...el.com>, Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>,
Tero Kristo <kristo@...nel.org>, Keerthy <j-keerthy@...com>,
Linux Thermal <linux-pm@...r.kernel.org>,
Linux Device Tree <devicetree@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>,
Bryan Brattlof <bb@...com>
Subject: [PATCH 10/11] arm64: dts: ti: k3-j721s2-mcu-wakeup: add VTM node
The j721s2 supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with seven associated temperature monitors
located in various hot spots on the die.
Signed-off-by: Bryan Brattlof <bb@...com>
---
.../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 8 ++
arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi | 103 ++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j721s2.dtsi | 3 +
3 files changed, 114 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index 4d1bfabd1313a..8287fd32c42f3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -299,4 +299,12 @@ cpts@...00 {
ti,cpts-periodic-outputs = <2>;
};
};
+
+ vtm0: temperature-sensor@...40000 {
+ compatible = "ti,j7200-vtm";
+ reg = <0x0 0x42040000 0x0 0x350>,
+ <0x0 0x42050000 0x0 0x350>;
+ power-domains = <&k3_pds 154 TI_SCI_PD_SHARED>;
+ #thermal-sensor-cells = <1>;
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi
new file mode 100644
index 0000000000000..c51009536756e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-thermal.dtsi
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+ wkup0_thermal: wkup0-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 0>;
+
+ trips {
+ wkup0_crit: wkup0-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ wkup1_thermal: wkup1-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 1>;
+
+ trips {
+ wkup1_crit: wkup1-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ main0_thermal: main0-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 2>;
+
+ 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 = <&vtm0 3>;
+
+ 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 = <&vtm0 4>;
+
+ trips {
+ main2_crit: main2-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ main3_thermal: main3-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 5>;
+
+ trips {
+ main3_crit: main3-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ main4_thermal: main4-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 6>;
+
+ trips {
+ main4_crit: main4-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
index 7b930a85a29d6..33ea52e28b24f 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
@@ -161,6 +161,9 @@ cbass_mcu_wakeup: bus@...80000 {
};
};
+
+ #include "k3-j721s2-thermal.dtsi"
+
};
/* Now include peripherals from each bus segment */
--
2.38.0
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