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
