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arm64: dts: imx8mq-phanbell: Add gpio-fan/thermal support

Browse source 
It was based on Google Source Code for Coral Edge TPU Mendel release:
https://coral.googlesource.com/linux-imx/

It was tested on Coral Dev Board using this command:
  sudo stress --cpu 4 --timeout 3600

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Vitor Massaru Iha 2020-03-02 22:15:16 -03:00 committed by Shawn Guo
parent f93f1e721c
commit c5486819d2
2 changed files with 64 additions and 1 deletions
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63
arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts
View file

@ -35,6 +35,16 @@ reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
fan: gpio-fan {
compatible = "gpio-fan";
gpio-fan,speed-map = <0 0 8600 1>;
gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
#cooling-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_fan>;
status = "okay";
};
};
&A53_0 {
@ -53,6 +63,53 @@ &A53_3 {
cpu-supply = <&buck2>;
};
&cpu_thermal {
trips {
cpu_alert0: trip0 {
temperature = <75000>;
hysteresis = <2000>;
type = "passive";
};
cpu_alert1: trip1 {
temperature = <80000>;
hysteresis = <2000>;
type = "passive";
};
cpu_crit0: trip3 {
temperature = <90000>;
hysteresis = <2000>;
type = "critical";
};
fan_toggle0: trip4 {
temperature = <65000>;
hysteresis = <10000>;
type = "active";
};
};
cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device =
<&A53_0 0 1>; /* Exclude highest OPP */
};
map1 {
trip = <&cpu_alert1>;
cooling-device =
<&A53_0 0 2>; /* Exclude two highest OPPs */
};
map4 {
trip = <&fan_toggle0>;
cooling-device = <&fan 0 1>;
};
};
};
&i2c1 {
clock-frequency = <400000>;
pinctrl-names = "default";
@ -295,6 +352,12 @@ MX8MQ_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
>;
};
pinctrl_gpio_fan: gpiofangrp {
fsl,pins = <
MX8MQ_IOMUXC_NAND_CLE_GPIO3_IO5 0x16
>;
};
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x4000007f

2
arch/arm64/boot/dts/freescale/imx8mq.dtsi
View file

@ -198,7 +198,7 @@ psci {
};
thermal-zones {
cpu-thermal {
cpu_thermal: cpu-thermal {
polling-delay-passive = <250>;
polling-delay = <2000>;
thermal-sensors = <&tmu 0>;