On Fri, Apr 07, 2017 at 03:00:09PM -0700, Moritz Fischer wrote:
> From: Moritz Fischer <m...@kernel.org>
>
> Add bindings for the Chromium EC HWMON. The Chromium EC HWMON
> allows monitoring of temperature sensors and fans attached to the
> EC.
>
> Signed-off-by: Moritz Fischer <m...@kernel.org>
> ---
> .../devicetree/bindings/hwmon/cros-ec-hwmon.txt | 25
> ++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/hwmon/cros-ec-hwmon.txt
>
> diff --git a/Documentation/devicetree/bindings/hwmon/cros-ec-hwmon.txt
> b/Documentation/devicetree/bindings/hwmon/cros-ec-hwmon.txt
> new file mode 100644
> index 0000000..4c94869
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/cros-ec-hwmon.txt
> @@ -0,0 +1,25 @@
> +Chromium Embedded Controller EC temperature and fan control
> +-----------------------------------------------------------
> +
> +Google's Chromium EC HWMON is a hwmon implemented byimplemented by the
> Chromium EC
> +firmware attached to the Embedded Controller (EC) and controlled via a
> host-command
> +interface.
> +
> +An EC HWMON node should be only found as a sub-node of the EC node (see
> +Documentation/devicetree/bindings/mfd/cros-ec.txt).
> +
> +Required properties:
> +- compatible: Must contain "google,cros-ec-hwmon"
> +
> +Example:
> + embedded-controller@1e {
> + reg = <0x1e>;
> + compatible = "google,cros-ec-i2c";
> + interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-parent = <&gpio0>;
> +
> + hwmon {
> + compatible = "google,cros-ec-hwmon";
This is sufficient for all devices? I don't see that DT provides
anything here other than instantiating a device, but the parent device
can just as easily do that.
Rob
