On Wed, Oct 19, 2016 at 12:44:44AM +0200, Clemens Gruber wrote:
> Support setting the reference voltage in the device tree.
> Rework of driver structure, put chip specific data in a separate
> structure and assign it depending on device id from platform data or
> DT match.
> Extend the device documentation and add new documentation for the
> devicetree bindings.
> Also change S_IRUGO to the better readable 0444, which fixes a
> checkpatch warning.
"Also" is a keyword for put in a separate commit.
>
> Signed-off-by: Clemens Gruber <clemens.gruber@xxxxxxxxxxxx>
> ---
> .../devicetree/bindings/hwmon/mcp3021.txt | 21 +++
> Documentation/hwmon/mcp3021 | 5 +
> drivers/hwmon/mcp3021.c | 184 ++++++++++++++-------
> 3 files changed, 149 insertions(+), 61 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/hwmon/mcp3021.txt
>
> diff --git a/Documentation/devicetree/bindings/hwmon/mcp3021.txt b/Documentation/devicetree/bindings/hwmon/mcp3021.txt
> new file mode 100644
> index 0000000..e1d1e62
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/mcp3021.txt
> @@ -0,0 +1,21 @@
> +mcp3021 properties
> +
> +Required properties:
> +- compatible: Must be one of the following:
> + - "microchip,mcp3021" for mcp3021
> + - "microchip,mcp3221" for mcp3221
> +- reg: I2C address
> +
> +Optional properties:
> +
> +- reference-voltage
> + Reference voltage in millivolt (mV)
Unit suffix in the property name please. The defined unit for DT is
'-microvolt'.
> +
> +Example:
> +
> +mcp3021@4d {
> + compatible = "microchip,mcp3021";
> + reg = <0x4d>;
> +
> + reference-voltage = <4500>; /* 4.5 V */
> +};
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