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    Subject[PATCH v3 09/11] arm64: dts: ti: k3-j721e-mcu-wakeup: add VTM node
    Date
    The j721e supports a single Voltage and Thermal Management (VTM) module
    located in the wakeup domain with five associated temperature monitors
    located in various hot spots on the die.

    Signed-off-by: Bryan Brattlof <bb@ti.com>
    ---
    .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 9 +++
    arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi | 75 +++++++++++++++++++
    arch/arm64/boot/dts/ti/k3-j721e.dtsi | 3 +
    3 files changed, 87 insertions(+)
    create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi

    diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
    index df08724bbf1c5..9a09f66c51c01 100644
    --- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
    +++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
    @@ -418,4 +418,13 @@ mcu_mcan1: can@40568000 {
    interrupt-names = "int0", "int1";
    bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
    };
    +
    + vtm0: temperature-sensor@42040000 {
    + compatible = "ti,j721e-vtm";
    + reg = <0x00 0x42040000 0x00 0x350>,
    + <0x00 0x42050000 0x00 0x350>,
    + <0x00 0x43000300 0x00 0x10>;
    + power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>;
    + #thermal-sensor-cells = <1>;
    + };
    };
    diff --git a/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
    new file mode 100644
    index 0000000000000..79641927a9092
    --- /dev/null
    +++ b/arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
    @@ -0,0 +1,75 @@
    +// SPDX-License-Identifier: GPL-2.0
    +
    +#include <dt-bindings/thermal/thermal.h>
    +
    +thermal_zones: thermal-zones {
    + wkup_thermal: wkup-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";
    + };
    + };
    + };
    +
    + c7x_thermal: c7x-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";
    + };
    + };
    + };
    +
    + gpu_thermal: gpu-thermal {
    + polling-delay-passive = <250>; /* milliSeconds */
    + polling-delay = <500>; /* milliSeconds */
    + thermal-sensors = <&vtm0 3>;
    +
    + trips {
    + gpu_crit: gpu-crit {
    + temperature = <125000>; /* milliCelsius */
    + hysteresis = <2000>; /* milliCelsius */
    + type = "critical";
    + };
    + };
    + };
    +
    + r5f_thermal: r5f-thermal {
    + polling-delay-passive = <250>; /* milliSeconds */
    + polling-delay = <500>; /* milliSeconds */
    + thermal-sensors = <&vtm0 4>;
    +
    + trips {
    + r5f_crit: r5f-crit {
    + temperature = <125000>; /* milliCelsius */
    + hysteresis = <2000>; /* milliCelsius */
    + type = "critical";
    + };
    + };
    + };
    +};
    diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
    index 0e23886c9fd1d..cfab10e2455c4 100644
    --- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
    +++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
    @@ -181,6 +181,9 @@ cbass_mcu_wakeup: bus@28380000 {
    <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3*/
    };
    };
    +
    + #include "k3-j721e-thermal.dtsi"
    +
    };

    /* Now include the peripherals for each bus segments */
    --
    2.38.1
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