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author | Jiri Kosina <jkosina@suse.cz> | 2013-07-25 12:30:27 +0200 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2013-07-25 12:30:49 +0200 |
commit | a3f8612700507a10ad7186fd77e9f46c7af88335 (patch) | |
tree | f00be0b726748113ffeb4e1caf7ade7ef33cfabe /Documentation/devicetree/bindings/hwmon | |
parent | 8ecada16512c90ae782b00f15ebff0c32e4cd92a (diff) | |
parent | 07bc9dc1b01bad7084fed3d2659e5d83317869bc (diff) | |
download | linux-stable-a3f8612700507a10ad7186fd77e9f46c7af88335.tar.gz linux-stable-a3f8612700507a10ad7186fd77e9f46c7af88335.tar.bz2 linux-stable-a3f8612700507a10ad7186fd77e9f46c7af88335.zip |
Merge branch 'master' into for-next
Sync with Linus' master to be able to apply
trivial patche to newer code.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/devicetree/bindings/hwmon')
-rw-r--r-- | Documentation/devicetree/bindings/hwmon/g762.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/g762.txt b/Documentation/devicetree/bindings/hwmon/g762.txt new file mode 100644 index 000000000000..25cc6d8ee575 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/g762.txt @@ -0,0 +1,47 @@ +GMT G762/G763 PWM Fan controller + +Required node properties: + + - "compatible": must be either "gmt,g762" or "gmt,g763" + - "reg": I2C bus address of the device + - "clocks": a fixed clock providing input clock frequency + on CLK pin of the chip. + +Optional properties: + + - "fan_startv": fan startup voltage. Accepted values are 0, 1, 2 and 3. + The higher the more. + + - "pwm_polarity": pwm polarity. Accepted values are 0 (positive duty) + and 1 (negative duty). + + - "fan_gear_mode": fan gear mode. Supported values are 0, 1 and 2. + +If an optional property is not set in .dts file, then current value is kept +unmodified (e.g. u-boot installed value). + +Additional information on operational parameters for the device is available +in Documentation/hwmon/g762. A detailed datasheet for the device is available +at http://natisbad.org/NAS/refs/GMT_EDS-762_763-080710-0.2.pdf. + +Example g762 node: + + clocks { + #address-cells = <1>; + #size-cells = <0>; + + g762_clk: fixedclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <8192>; + } + } + + g762: g762@3e { + compatible = "gmt,g762"; + reg = <0x3e>; + clocks = <&g762_clk> + fan_gear_mode = <0>; /* chip default */ + fan_startv = <1>; /* chip default */ + pwm_polarity = <0>; /* chip default */ + }; |