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Message-ID: <20221011231727.8090-12-bb@ti.com>
Date: Tue, 11 Oct 2022 18:17:27 -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 11/11] arm64: dts: ti: k3-j7200-mcu-wakeup: add VTM node
The j7200 supports a single Voltage and Thermal Management (VTM) device
located in the wakeup domain with three associated temperature monitors
located in various hot spots on the die.
Signed-off-by: Bryan Brattlof <bb@...com>
---
.../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 8 ++++
arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi | 47 +++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j7200.dtsi | 3 ++
3 files changed, 58 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index ff13bbeed30c9..34d3e9bbd181c 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -375,4 +375,12 @@ mcu_r5fss0_core1: r5f@...00000 {
ti,loczrama = <1>;
};
};
+
+ vtm0: temperature-sensor@...40000 {
+ compatible = "ti,j7200-vtm";
+ reg = <0x00 0x42040000 0x00 0x350>,
+ <0x00 0x42050000 0x00 0x350>;
+ power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
+ #thermal-sensor-cells = <1>;
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
new file mode 100644
index 0000000000000..0bf52c93c3f9a
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/thermal/thermal.h>
+
+thermal_zones: thermal-zones {
+ mcu_thermal: mcu-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 0>;
+
+ trips {
+ wkup_crit: wkup-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ mpu_thermal: mpu-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 1>;
+
+ trips {
+ mpu_crit: mpu-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+
+ main_thermal: main-thermal {
+ polling-delay-passive = <250>; /* milliSeconds */
+ polling-delay = <500>; /* milliSeconds */
+ thermal-sensors = <&vtm0 2>;
+
+ trips {
+ c7x_crit: c7x-crit {
+ temperature = <125000>; /* milliCelsius */
+ hysteresis = <2000>; /* milliCelsius */
+ type = "critical";
+ };
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index b6da0454cc5bd..9368a6e3d4a62 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -168,6 +168,9 @@ cbass_mcu_wakeup: bus@...80000 {
<0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3 */
};
};
+
+ #include "k3-j7200-thermal.dtsi"
+
};
/* Now include the peripherals for each bus segments */
--
2.38.0
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