On Wed, Apr 24, 2013 at 12:06:20AM +0200, Arnaud Ebalard wrote: > > Signed-off-by: Arnaud Ebalard <arno@xxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/hwmon/g762.txt | 57 ++++++++++++++++++++++ > 1 file changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwmon/g762.txt > > diff --git a/Documentation/devicetree/bindings/hwmon/g762.txt b/Documentation/devicetree/bindings/hwmon/g762.txt > new file mode 100644 > index 0000000..87d7cf5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/hwmon/g762.txt > @@ -0,0 +1,57 @@ > +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 > + > +Optional properties: > + > + - "pwm_mode": fan driving mode. 1 for PWM mode, 0 for linear. Default > + value is 0, i.e. linear. > + > + - "pwm_enable": fan speed control. 1 for open-loop, 2 for closed-loop. > + Default value is 2, i.e. closed-loop. > + > + - "pwm_freq": reference clock frequency for PWM mode in Hz. Default is > + 32768. > + > + - "fan_pulses": number of pulses per fan revolution. Supported values > + are 2 and 4. Default is 2. > + > + - "fan_div": fan clock frequency divisor value. Supported values are 1, > + 2, 4 and 8. Default is 1. > + > + - "fan_target": initial target fan speed in RPM. By default, current > + value is not modified. Only works in closed-loop fan speed > + control, i.e. when pwm_enable has already been set to 2. > + > + - "fan_startv": fan startup voltage. Accepted values are 0, 1, 2 and 3. > + Default value is 1. The higher the more. > + > + - "pwm_polarity": pwm polarity. Accepted values are 0 (positive duty) > + and 1 (negative duty). Default is 0 i.e. positive duty. > + > + - "fan_gear_mode": fan gear mode. Supported values are 0, 1 and 2. > + Default is 0. > + > + > +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: > + > + g762: g762@3e { > + compatible = "gmt,g762"; > + reg = <0x3e>; > + pwm_mode = <1>; /* closed-loop control */ > + pwm_enable = <2>; /* PWM mode */ > + pwm_freq = <8192>; /* PWM reference clock freq */ > + fan_pulses = <2>; /* 2 pulses per rev */ > + fan_div = <2>; /* fan clock divisor */ > + fan_target = <2000>; /* target fan speed at 2000 RPM */ > + fan_gear_mode = <0>; /* default */ > + fan_startv = <1>; /* default */ > + pwm_polarity = <0>; /* default */ > + }; I was just giving this quick overview and noticed that you have leading whitespace issues in the above block... thx, Jason, -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
