From: Freeman Liu <freeman.liu@xxxxxxxxxx> Add the Spreadtrum thermal documentation. Signed-off-by: Freeman Liu <freeman.liu@xxxxxxxxxx> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx> --- .../devicetree/bindings/thermal/sprd-thermal.txt | 41 ++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/sprd-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/sprd-thermal.txt b/Documentation/devicetree/bindings/thermal/sprd-thermal.txt new file mode 100644 index 0000000..a9da7f4 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/sprd-thermal.txt @@ -0,0 +1,41 @@ +* Spreadtrum thermal sensor controller bindings + +Required properties: +- compatible : Should be "sprd,ums512-thermal" +- reg: Address range of the thermal registers +- clock-names: "enable" for thermal module enable clock. +- clocks: Should contain a clock specifier for each entry in clock-names. +- nvmem-cells: A phandle to the calibration data provided by a nvmem device. +- nvmem-cell-names: Should be "thm_sign_cal" and "thm_ratio_cal". +- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description. + +Child nodes properties: +- reg: Specify the sensor id. +- nvmem-cells: A phandle to the calibration data provided by a nvmem device. +- nvmem-cell-names: Should be "sen_delta_cal". + +Example: + + ap_thm0: thermal@32200000 { + compatible = "sprd,ums512-thermal"; + reg = <0 0x32200000 0 0x10000>; + clock-names = "enable"; + clocks = <&aonapb_gate CLK_THM0_EB>; + #thermal-sensor-cells = <1>; + nvmem-cells = <&thm0_sign>, <&thm0_ratio>; + nvmem-cell-names = "thm_sign_cal", "thm_ratio_cal"; + + prometheus0-sensor@0{ + reg = <0>; + nvmem-cells = <&thm0_sen0>; + nvmem-cell-names = "sen_delta_cal"; + }; + + ank1-sensor@1{ + reg = <1>; + nvmem-cells = <&thm0_sen1>; + nvmem-cell-names = "sen_delta_cal"; + }; + + ...... + }; -- 1.7.9.5