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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-04 04:43:20 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-04 04:43:20 +0300
commitfe91f28138e730790db014812623cfaadd318fa6 (patch)
treece8fb5cb94539235db9b7c4be564c2b7b7659317 /Documentation/devicetree
parentaa9d4648c2fbb455df7750ade1b73dd9ad9b3690 (diff)
parent7074d0a92758603369655ef5d4f49e6caaae0b4e (diff)
downloadlinux-fe91f28138e730790db014812623cfaadd318fa6.tar.xz
Merge tag 'hwmon-for-linus-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck: - new drivers: - Lantiq CPU temperature sensor - IBM CFF power supply - TPS53679 PMBus driver - new support: - LM5066I (lm25066 PMBus driver) - Intel VID protocol VR13 (PMBus drivers) - CAT34TS02C, GT30TS00, GT34TS02, and CAT34TS04 (jc42 driver) - cleanup and minor improvements in several drivers * tag 'hwmon-for-linus-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits) hwmon: (ltq-cputemp) add cpu temp sensor driver hwmon: (ltq-cputemp) add devicetree bindings documentation hwmon: (pmbus) Add support for Texas Instruments tps53679 device hwmon: (asc7621) make several arrays static const hwmon: (pmbus/lm25066) Add support for TI LM5066I hwmon: (pmbus/lm25066) Offset coefficient depends on CL hwmon: (pmbus) Add support for Intel VID protocol VR13 Documentation: hwmon: Document the IBM CFF power supply hwmon: (pmbus) Add IBM Common Form Factor (CFF) power supply driver dt-bindings: hwmon: Document the IBM CCF power supply version 1 hwmon: (ftsteutates) constify i2c_device_id hwmon: da9052: Add support for TSI channel mfd: da9052: Make touchscreen registration optional hwmon: da9052: Replace S_IRUGO with 0444 mfd: da9052: Add register details for TSI hwmon: (aspeed-pwm) add THERMAL dependency hwmon: (pmbus) Add debugfs for status registers hwmon: (aspeed-pwm-tacho) cooling device support. Documentation: dt-bindings: aspeed-pwm-tacho cooling device. hwmon: (pmbus): Add generic alarm bit for iin and pin ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt9
-rw-r--r--Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt21
-rw-r--r--Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt10
3 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
index cf4460564adb..367c8203213b 100644
--- a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
+++ b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
@@ -11,6 +11,8 @@ Required properties for pwm-tacho node:
- #size-cells : should be 1.
+- #cooling-cells: should be 2.
+
- reg : address and length of the register set for the device.
- pinctrl-names : a pinctrl state named "default" must be defined.
@@ -28,12 +30,17 @@ fan subnode format:
Under fan subnode there can upto 8 child nodes, with each child node
representing a fan. If there are 8 fans each fan can have one PWM port and
one/two Fan tach inputs.
+For PWM port can be configured cooling-levels to create cooling device.
+Cooling device could be bound to a thermal zone for the thermal control.
Required properties for each child node:
- reg : should specify PWM source port.
integer value in the range 0 to 7 with 0 indicating PWM port A and
7 indicating PWM port H.
+- cooling-levels: PWM duty cycle values in a range from 0 to 255
+ which correspond to thermal cooling states.
+
- aspeed,fan-tach-ch : should specify the Fan tach input channel.
integer value in the range 0 through 15, with 0 indicating
Fan tach channel 0 and 15 indicating Fan tach channel 15.
@@ -50,6 +57,7 @@ pwm_tacho_fixed_clk: fixedclk {
pwm_tacho: pwmtachocontroller@1e786000 {
#address-cells = <1>;
#size-cells = <1>;
+ #cooling-cells = <2>;
reg = <0x1E786000 0x1000>;
compatible = "aspeed,ast2500-pwm-tacho";
clocks = <&pwm_tacho_fixed_clk>;
@@ -58,6 +66,7 @@ pwm_tacho: pwmtachocontroller@1e786000 {
fan@0 {
reg = <0x00>;
+ cooling-levels = /bits/ 8 <125 151 177 203 229 255>;
aspeed,fan-tach-ch = /bits/ 8 <0x00>;
};
diff --git a/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
new file mode 100644
index 000000000000..f68a0a68fc52
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
@@ -0,0 +1,21 @@
+Device-tree bindings for IBM Common Form Factor Power Supply Version 1
+----------------------------------------------------------------------
+
+Required properties:
+ - compatible = "ibm,cffps1";
+ - reg = < I2C bus address >; : Address of the power supply on the
+ I2C bus.
+
+Example:
+
+ i2c-bus@100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+ < more properties >
+
+ power-supply@68 {
+ compatible = "ibm,cffps1";
+ reg = <0x68>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
new file mode 100644
index 000000000000..33fd00a987c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
@@ -0,0 +1,10 @@
+Lantiq cpu temperatur sensor
+
+Requires node properties:
+- compatible value :
+ "lantiq,cputemp"
+
+Example:
+ cputemp@0 {
+ compatible = "lantiq,cputemp";
+ };