| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | * Broadcom Stingray Thermal |
| 2 | |
| 3 | This binding describes thermal sensors that is part of Stingray SoCs. |
| 4 | |
| 5 | Required properties: |
| 6 | - compatible : Must be "brcm,sr-thermal" |
| 7 | - reg : Memory where tmon data will be available. |
| 8 | - brcm,tmon-mask: A one cell bit mask of valid TMON sources. |
| 9 | Each bit represents single TMON source. |
| 10 | - #thermal-sensor-cells : Thermal sensor phandler |
| 11 | - polling-delay: Max number of milliseconds to wait between polls. |
| 12 | - thermal-sensors: A list of thermal sensor phandles and specifier. |
| 13 | specifier value is tmon ID and it should be |
| 14 | in correspond with brcm,tmon-mask. |
| 15 | - temperature: trip temperature threshold in millicelsius. |
| 16 | |
| 17 | Example: |
| 18 | tmons { |
| 19 | compatible = "simple-bus"; |
| 20 | #address-cells = <1>; |
| 21 | #size-cells = <1>; |
| 22 | ranges = <0x0 0x0 0x8f100000 0x100>; |
| 23 | |
| 24 | tmon: tmon@0 { |
| 25 | compatible = "brcm,sr-thermal"; |
| 26 | reg = <0x0 0x40>; |
| 27 | brcm,tmon-mask = <0x3f>; |
| 28 | #thermal-sensor-cells = <1>; |
| 29 | }; |
| 30 | }; |
| 31 | |
| 32 | thermal-zones { |
| 33 | ihost0_thermal: ihost0-thermal { |
| 34 | polling-delay-passive = <0>; |
| 35 | polling-delay = <1000>; |
| 36 | thermal-sensors = <&tmon 0>; |
| 37 | trips { |
| 38 | cpu-crit { |
| 39 | temperature = <105000>; |
| 40 | hysteresis = <0>; |
| 41 | type = "critical"; |
| 42 | }; |
| 43 | }; |
| 44 | }; |
| 45 | ihost1_thermal: ihost1-thermal { |
| 46 | polling-delay-passive = <0>; |
| 47 | polling-delay = <1000>; |
| 48 | thermal-sensors = <&tmon 1>; |
| 49 | trips { |
| 50 | cpu-crit { |
| 51 | temperature = <105000>; |
| 52 | hysteresis = <0>; |
| 53 | type = "critical"; |
| 54 | }; |
| 55 | }; |
| 56 | }; |
| 57 | ihost2_thermal: ihost2-thermal { |
| 58 | polling-delay-passive = <0>; |
| 59 | polling-delay = <1000>; |
| 60 | thermal-sensors = <&tmon 2>; |
| 61 | trips { |
| 62 | cpu-crit { |
| 63 | temperature = <105000>; |
| 64 | hysteresis = <0>; |
| 65 | type = "critical"; |
| 66 | }; |
| 67 | }; |
| 68 | }; |
| 69 | ihost3_thermal: ihost3-thermal { |
| 70 | polling-delay-passive = <0>; |
| 71 | polling-delay = <1000>; |
| 72 | thermal-sensors = <&tmon 3>; |
| 73 | trips { |
| 74 | cpu-crit { |
| 75 | temperature = <105000>; |
| 76 | hysteresis = <0>; |
| 77 | type = "critical"; |
| 78 | }; |
| 79 | }; |
| 80 | }; |
| 81 | crmu_thermal: crmu-thermal { |
| 82 | polling-delay-passive = <0>; |
| 83 | polling-delay = <1000>; |
| 84 | thermal-sensors = <&tmon 4>; |
| 85 | trips { |
| 86 | cpu-crit { |
| 87 | temperature = <105000>; |
| 88 | hysteresis = <0>; |
| 89 | type = "critical"; |
| 90 | }; |
| 91 | }; |
| 92 | }; |
| 93 | nitro_thermal: nitro-thermal { |
| 94 | polling-delay-passive = <0>; |
| 95 | polling-delay = <1000>; |
| 96 | thermal-sensors = <&tmon 5>; |
| 97 | trips { |
| 98 | cpu-crit { |
| 99 | temperature = <105000>; |
| 100 | hysteresis = <0>; |
| 101 | type = "critical"; |
| 102 | }; |
| 103 | }; |
| 104 | }; |
| 105 | }; |