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arm64: dts: imx8mm: Add thermal zone support

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Add thermal zone and tmu node to support i.MX8MM thermal
driver, ONLY cpu thermal zone is supported, and cpu cooling
is also added.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Anson Huang 2020-02-29 11:44:22 +08:00 committed by Shawn Guo
parent 1436b5bc25
commit 11699fd5ca
1 changed files with 43 additions and 0 deletions
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43
arch/arm64/boot/dts/freescale/imx8mm.dtsi
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@ -68,6 +68,7 @@
nvmem-cells = <&cpu_speed_grade>;
nvmem-cell-names = "speed_grade";
cpu-idle-states = <&cpu_pd_wait>;
#cooling-cells = <2>;
};
A53_1: cpu@1 {
@ -80,6 +81,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
#cooling-cells = <2>;
};
A53_2: cpu@2 {
@ -92,6 +94,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
#cooling-cells = <2>;
};
A53_3: cpu@3 {
@ -104,6 +107,7 @@
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
#cooling-cells = <2>;
};
A53_L2: l2-cache0 {
@ -204,6 +208,38 @@
arm,no-tick-in-suspend;
};
thermal-zones {
cpu-thermal {
polling-delay-passive = <250>;
polling-delay = <2000>;
thermal-sensors = <&tmu>;
trips {
cpu_alert0: trip0 {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};
cpu_crit0: trip1 {
temperature = <95000>;
hysteresis = <2000>;
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device =
<&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
};
usbphynop1: usbphynop1 {
compatible = "usb-nop-xceiv";
clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
@ -363,6 +399,13 @@
gpio-ranges = <&iomuxc 0 119 30>;
};
tmu: tmu@30260000 {
compatible = "fsl,imx8mm-tmu";
reg = <0x30260000 0x10000>;
clocks = <&clk IMX8MM_CLK_TMU_ROOT>;
#thermal-sensor-cells = <0>;
};
wdog1: watchdog@30280000 {
compatible = "fsl,imx8mm-wdt", "fsl,imx21-wdt";
reg = <0x30280000 0x10000>;