On Wed, Aug 10, 2016 at 04:19:47PM +0200, Mike Looijmans wrote:
> Parse devicetree parameters for voltage and prescaler setting. This allows
> using multiple max6550 devices with varying settings, and also makes it
> possible to instantiate and configure the device using devicetree.
>
> Signed-off-by: Mike Looijmans <mike.looijmans@xxxxxxxx>
> ---
> v3: Resubmit because mailing lists bounced
> Fix style errors as reported by checkpatch.pl
> Fix bug in DT parsing of fan-prescale
> v2: Add devicetree binding documentation
> Code changes as suggested by Guenter
> Reduce log info, output only a single line
>
> .../devicetree/bindings/hwmon/max6650.txt | 20 ++++++++++++++++
> drivers/hwmon/max6650.c | 28 +++++++++++++---------
> 2 files changed, 37 insertions(+), 11 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/hwmon/max6650.txt
>
> diff --git a/Documentation/devicetree/bindings/hwmon/max6650.txt b/Documentation/devicetree/bindings/hwmon/max6650.txt
> new file mode 100644
> index 0000000..89d87c6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/max6650.txt
> @@ -0,0 +1,20 @@
> +Bindings for MAX6651 and MAX6650 I2C fan controllers
> +
> +Required properties:
> +- compatible : One of "max6650" or "max6651"
Needs a vendor prefix.
> +- reg : I2C address
> +
> +Optional properties:
> +- fan-voltage : The supply voltage of the fan. Valid values are 5 and 12.
This is in volts? Please use microvolt and the standard unit suffix as
found in property-units.txt.
> + Default is to use the chip's current setting.
> +- fan-prescale : Pre-scaling value as per datasheet. Valid are 1, 2, 4, 8, 16.
> + Default is to use the chip's current setting.
Add a vendor prefix here.
> +
> +
> +Example:
> + fan-max6650: max6650@1b {
> + reg = <0x1b>;
> + compatible = "max6650";
> + fan-voltage = <12>;
> + fan-prescale = <4>;
> + };
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