From 95c27ba7bd92febbd72a74658db1132f37a52d2f Mon Sep 17 00:00:00 2001 From: Caesar Wang Date: Wed, 25 May 2016 15:39:35 +0800 Subject: [PATCH] arm64: dts: rockchip: add thermal nodes for rk3399 SoCs This adds thermal zone and tsadc nodes to rk3399 dtsi, rk3399 thermal data is including the cpu and gpu sensor zone node. The thermal zone node is the node containing all the required info for describing a thermal zone, including its cooling device bindings. The thermal zone node must contain, apart from its own properties, one sub-node containing trip nodes and one sub-node containing all the zone cooling maps. The following is the parameter is introduced: * polling-delay: The maximum number of milliseconds to wait between polls * polling-delay-passive: The maximum number of milliseconds to wait between polls when performing passive cooling. * trips: A sub-node which is a container of only trip point nodes required to describe the thermal zone. * cooling-maps: A sub-node which is a container of only cooling device map nodes, used to describe the relation between trips and cooling devices. * cooling-device: A phandle of a cooling device with its specifier, referring to which cooling device is used in this cooling specifier binding. In the cooling specifier, the first cell is the minimum cooling state and the second cell is the maximum cooling state used in this map. Signed-off-by: Caesar Wang Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 100 +++++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 12acae636804..a4383f359264 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -45,6 +45,7 @@ #include #include #include +#include / { compatible = "rockchip,rk3399"; @@ -402,6 +403,95 @@ status = "disabled"; }; + thermal-zones { + cpu_thermal: cpu { + polling-delay-passive = <100>; + polling-delay = <1000>; + + thermal-sensors = <&tsadc 0>; + + trips { + cpu_alert0: cpu_alert0 { + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_alert1: cpu_alert1 { + temperature = <75000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_crit: cpu_crit { + temperature = <95000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + map1 { + trip = <&cpu_alert1>; + cooling-device = + <&cpu_l0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + + gpu_thermal: gpu { + polling-delay-passive = <100>; + polling-delay = <1000>; + + thermal-sensors = <&tsadc 1>; + + trips { + gpu_alert0: gpu_alert0 { + temperature = <75000>; + hysteresis = <2000>; + type = "passive"; + }; + gpu_crit: gpu_crit { + temperature = <95000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&gpu_alert0>; + cooling-device = + <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; + + tsadc: tsadc@ff260000 { + compatible = "rockchip,rk3399-tsadc"; + reg = <0x0 0xff260000 0x0 0x100>; + interrupts = ; + assigned-clocks = <&cru SCLK_TSADC>; + assigned-clock-rates = <750000>; + clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>; + clock-names = "tsadc", "apb_pclk"; + resets = <&cru SRST_TSADC>; + reset-names = "tsadc-apb"; + rockchip,grf = <&grf>; + rockchip,hw-tshut-temp = <95000>; + pinctrl-names = "init", "default", "sleep"; + pinctrl-0 = <&otp_gpio>; + pinctrl-1 = <&otp_out>; + pinctrl-2 = <&otp_gpio>; + #thermal-sensor-cells = <1>; + status = "disabled"; + }; + pmugrf: syscon@ff320000 { compatible = "rockchip,rk3399-pmugrf", "syscon", "simple-mfd"; reg = <0x0 0xff320000 0x0 0x1000>; @@ -931,6 +1021,16 @@ }; }; + tsadc { + otp_gpio: otp-gpio { + rockchip,pins = <1 6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + otp_out: otp-out { + rockchip,pins = <1 6 RK_FUNC_1 &pcfg_pull_none>; + }; + }; + uart0 { uart0_xfer: uart0-xfer { rockchip,pins = -- 2.20.1