diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2020-02-29 11:44:22 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-03-12 22:26:04 +0800 |
| commit | 11699fd5ca3264e36dd1f5763810209412b0924d (patch) | |
| tree | e0d0d092033af79cb95e281d312e2abf18f39486 /arch/arm64/boot | |
| parent | 1436b5bc25a4e40a2b003e07a15884988ada4421 (diff) | |
arm64: dts: imx8mm: Add thermal zone support
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>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm.dtsi | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi index 2e5e7c4457db..2723b073203f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi @@ -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>; |