0001 * Broadcom Stingray Thermal
0002
0003 This binding describes thermal sensors that is part of Stingray SoCs.
0004
0005 Required properties:
0006 - compatible : Must be "brcm,sr-thermal"
0007 - reg : Memory where tmon data will be available.
0008 - brcm,tmon-mask: A one cell bit mask of valid TMON sources.
0009 Each bit represents single TMON source.
0010 - #thermal-sensor-cells : Thermal sensor phandler
0011 - polling-delay: Max number of milliseconds to wait between polls.
0012 - thermal-sensors: A list of thermal sensor phandles and specifier.
0013 specifier value is tmon ID and it should be
0014 in correspond with brcm,tmon-mask.
0015 - temperature: trip temperature threshold in millicelsius.
0016
0017 Example:
0018 tmons {
0019 compatible = "simple-bus";
0020 #address-cells = <1>;
0021 #size-cells = <1>;
0022 ranges = <0x0 0x0 0x8f100000 0x100>;
0023
0024 tmon: tmon@0 {
0025 compatible = "brcm,sr-thermal";
0026 reg = <0x0 0x40>;
0027 brcm,tmon-mask = <0x3f>;
0028 #thermal-sensor-cells = <1>;
0029 };
0030 };
0031
0032 thermal-zones {
0033 ihost0_thermal: ihost0-thermal {
0034 polling-delay-passive = <0>;
0035 polling-delay = <1000>;
0036 thermal-sensors = <&tmon 0>;
0037 trips {
0038 cpu-crit {
0039 temperature = <105000>;
0040 hysteresis = <0>;
0041 type = "critical";
0042 };
0043 };
0044 };
0045 ihost1_thermal: ihost1-thermal {
0046 polling-delay-passive = <0>;
0047 polling-delay = <1000>;
0048 thermal-sensors = <&tmon 1>;
0049 trips {
0050 cpu-crit {
0051 temperature = <105000>;
0052 hysteresis = <0>;
0053 type = "critical";
0054 };
0055 };
0056 };
0057 ihost2_thermal: ihost2-thermal {
0058 polling-delay-passive = <0>;
0059 polling-delay = <1000>;
0060 thermal-sensors = <&tmon 2>;
0061 trips {
0062 cpu-crit {
0063 temperature = <105000>;
0064 hysteresis = <0>;
0065 type = "critical";
0066 };
0067 };
0068 };
0069 ihost3_thermal: ihost3-thermal {
0070 polling-delay-passive = <0>;
0071 polling-delay = <1000>;
0072 thermal-sensors = <&tmon 3>;
0073 trips {
0074 cpu-crit {
0075 temperature = <105000>;
0076 hysteresis = <0>;
0077 type = "critical";
0078 };
0079 };
0080 };
0081 crmu_thermal: crmu-thermal {
0082 polling-delay-passive = <0>;
0083 polling-delay = <1000>;
0084 thermal-sensors = <&tmon 4>;
0085 trips {
0086 cpu-crit {
0087 temperature = <105000>;
0088 hysteresis = <0>;
0089 type = "critical";
0090 };
0091 };
0092 };
0093 nitro_thermal: nitro-thermal {
0094 polling-delay-passive = <0>;
0095 polling-delay = <1000>;
0096 thermal-sensors = <&tmon 5>;
0097 trips {
0098 cpu-crit {
0099 temperature = <105000>;
0100 hysteresis = <0>;
0101 type = "critical";
0102 };
0103 };
0104 };
0105 };
