194c2004eSLaxman DewanganThermal driver for MAX77620 Power management IC from Maxim Semiconductor. 294c2004eSLaxman Dewangan 394c2004eSLaxman DewanganMaxim Semiconductor MAX77620 supports alarm interrupts when its 494c2004eSLaxman Dewangandie temperature crosses 120C and 140C. These threshold temperatures 594c2004eSLaxman Dewanganare not configurable. Device does not provide the real temperature 694c2004eSLaxman Dewanganof die other than just indicating whether temperature is above or 794c2004eSLaxman Dewanganbelow threshold level. 894c2004eSLaxman Dewangan 994c2004eSLaxman DewanganRequired properties: 1094c2004eSLaxman Dewangan------------------- 11cff1d293SAmit Kucheria#thermal-sensor-cells: For more details, please refer to 12cff1d293SAmit Kucheria <devicetree/bindings/thermal/thermal-sensor.yaml> 1394c2004eSLaxman Dewangan The value must be 0. 1494c2004eSLaxman Dewangan 1594c2004eSLaxman DewanganFor more details, please refer generic thermal DT binding document 16cff1d293SAmit Kucheria<devicetree/bindings/thermal/thermal*.yaml>. 1794c2004eSLaxman Dewangan 1894c2004eSLaxman DewanganPlease refer <devicetree/bindings/mfd/max77620.txt> for mfd DT binding 1994c2004eSLaxman Dewangandocument for the MAX77620. 2094c2004eSLaxman Dewangan 2194c2004eSLaxman DewanganExample: 2294c2004eSLaxman Dewangan-------- 2394c2004eSLaxman Dewangan#include <dt-bindings/mfd/max77620.h> 2494c2004eSLaxman Dewangan#include <dt-bindings/thermal/thermal.h> 2594c2004eSLaxman Dewangan... 2694c2004eSLaxman Dewangan 2794c2004eSLaxman Dewangani2c@7000d000 { 2894c2004eSLaxman Dewangan spmic: max77620@3c { 2994c2004eSLaxman Dewangan compatible = "maxim,max77620"; 3094c2004eSLaxman Dewangan ::::: 3194c2004eSLaxman Dewangan #thermal-sensor-cells = <0>; 3294c2004eSLaxman Dewangan ::: 3394c2004eSLaxman Dewangan }; 3494c2004eSLaxman Dewangan}; 3594c2004eSLaxman Dewangan 3694c2004eSLaxman Dewangancool_dev: cool-dev { 3794c2004eSLaxman Dewangan compatible = "cooling-dev"; 3894c2004eSLaxman Dewangan #cooling-cells = <2>; 3994c2004eSLaxman Dewangan}; 4094c2004eSLaxman Dewangan 4194c2004eSLaxman Dewanganthermal-zones { 4294c2004eSLaxman Dewangan PMIC-Die { 4394c2004eSLaxman Dewangan polling-delay = <0>; 4494c2004eSLaxman Dewangan polling-delay-passive = <0>; 4594c2004eSLaxman Dewangan thermal-sensors = <&spmic>; 4694c2004eSLaxman Dewangan 4794c2004eSLaxman Dewangan trips { 4894c2004eSLaxman Dewangan pmic_die_warn_temp_thresh: hot-die { 4994c2004eSLaxman Dewangan temperature = <120000>; 5094c2004eSLaxman Dewangan type = "hot"; 5194c2004eSLaxman Dewangan hysteresis = <0>; 5294c2004eSLaxman Dewangan }; 5394c2004eSLaxman Dewangan 5494c2004eSLaxman Dewangan pmic_die_cirt_temp_thresh: cirtical-die { 5594c2004eSLaxman Dewangan temperature = <140000>; 5694c2004eSLaxman Dewangan type = "critical"; 5794c2004eSLaxman Dewangan hysteresis = <0>; 5894c2004eSLaxman Dewangan }; 5994c2004eSLaxman Dewangan }; 6094c2004eSLaxman Dewangan 6194c2004eSLaxman Dewangan cooling-maps { 6294c2004eSLaxman Dewangan map0 { 6394c2004eSLaxman Dewangan trip = <&pmic_die_warn_temp_thresh>; 6494c2004eSLaxman Dewangan cooling-device = <&cool_dev THERMAL_NO_LIMIT 6594c2004eSLaxman Dewangan THERMAL_NO_LIMIT>; 6694c2004eSLaxman Dewangan contribution = <100>; 6794c2004eSLaxman Dewangan }; 6894c2004eSLaxman Dewangan }; 6994c2004eSLaxman Dewangan }; 7094c2004eSLaxman Dewangan}; 71