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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-04 21:25:15 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-04 21:25:15 +0300
commitbef82f812c214bf909834bae7d96d806026e3e79 (patch)
tree205f94df5318a12e398318f1d753cddb97978fe8 /Documentation/devicetree/bindings
parente5a594643a3444d39c1467040e638bf08a4e0db8 (diff)
parentc9bdf291542e14dbc5b9a71aa11f995de0e54f0d (diff)
downloadlinux-bef82f812c214bf909834bae7d96d806026e3e79.tar.xz
Merge tag 'hwmon-for-linus-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck: - asus_atk0110 driver modified to use new API - k10temp supports new CPUs and reports both Tctl and Tdie - minor fixes in gpio-fan, ltc2990, fschmd, and mc13783 drivers * tag 'hwmon-for-linus-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (asus_atk0110) Make use of device managed memory hwmon: (asus_atk0110) Replace deprecated device register call hwmon: (k10temp) Make function get_raw_temp static hwmon: (gpio-fan) Fix "#cooling-cells" property name in bindings MAINTAINERS: hwmon: Add Documentation/devicetree/bindings/hwmon hwmon: (ltc2990) support all measurement modes hwmon: (ltc2990) add devicetree binding hwmon: (ltc2990) Fix incorrect conversion of negative temperatures hwmon: (core) check parent dev != NULL when chip != NULL hwmon: (fschmd) fix typo 'can by' to 'can be' hwmon: (k10temp) Display both Tctl and Tdie hwmon: (k10temp) Add support for Stoney Ridge and Bristol Ridge CPUs hwmon: MC13783: Add uid and die temperature sensor inputs
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r--Documentation/devicetree/bindings/hwmon/gpio-fan.txt2
-rw-r--r--Documentation/devicetree/bindings/hwmon/ltc2990.txt36
2 files changed, 37 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/gpio-fan.txt b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
index 439a7430fc68..2becdcfdc840 100644
--- a/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
+++ b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
@@ -11,7 +11,7 @@ Optional properties:
must have the RPM values in ascending order.
- alarm-gpios: This pin going active indicates something is wrong with
the fan, and a udev event will be fired.
-- cooling-cells: If used as a cooling device, must be <2>
+- #cooling-cells: If used as a cooling device, must be <2>
Also see: Documentation/devicetree/bindings/thermal/thermal.txt
min and max states are derived from the speed-map of the fan.
diff --git a/Documentation/devicetree/bindings/hwmon/ltc2990.txt b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
new file mode 100644
index 000000000000..f92f54029e84
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
@@ -0,0 +1,36 @@
+ltc2990: Linear Technology LTC2990 power monitor
+
+Required properties:
+- compatible: Must be "lltc,ltc2990"
+- reg: I2C slave address
+- lltc,meas-mode:
+ An array of two integers for configuring the chip measurement mode.
+
+ The first integer defines the bits 2..0 in the control register. In all
+ cases the internal temperature and supply voltage are measured. In
+ addition the following input measurements are enabled per mode:
+
+ 0: V1, V2, TR2
+ 1: V1-V2, TR2
+ 2: V1-V2, V3, V4
+ 3: TR1, V3, V4
+ 4: TR1, V3-V4
+ 5: TR1, TR2
+ 6: V1-V2, V3-V4
+ 7: V1, V2, V3, V4
+
+ The second integer defines the bits 4..3 in the control register. This
+ allows a subset of the measurements to be enabled:
+
+ 0: Internal temperature and supply voltage only
+ 1: TR1, V1 or V1-V2 only per mode
+ 2: TR2, V3 or V3-V4 only per mode
+ 3: All measurements per mode
+
+Example:
+
+ltc2990@4c {
+ compatible = "lltc,ltc2990";
+ reg = <0x4c>;
+ lltc,meas-mode = <7 3>; /* V1, V2, V3, V4 */
+};