Re: [PATCH v2 1/2] Documentation: Add sbs-manager device tree node documentation

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Hi,

On Thu, Jun 30, 2016 at 10:05:41PM +0200, Karl-Heinz Schneider wrote:
> This patch adds device tree documentation for the sbs-manager
> 
> Reviewed-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Karl-Heinz Schneider <karl-heinz@xxxxxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/power/sbs,sbs-manager.txt  | 52 ++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/sbs,sbs-manager.txt
> 
> diff --git a/Documentation/devicetree/bindings/power/sbs,sbs-manager.txt b/Documentation/devicetree/bindings/power/sbs,sbs-manager.txt
> new file mode 100644
> index 0000000..1d7e5ee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/sbs,sbs-manager.txt
> @@ -0,0 +1,52 @@
> +Binding for sbs-manager
> +
> +Required properties:
> +- compatible: should be "lltc,ltc1760" or use "sbs,sbs-manager" as fallback.
> +- reg: integer, i2c address of the device. Should be <0xa>.
> +
> +From OS view the device is basically an i2c-mux used to communicate with up to
> +four smart battery devices at address 0xb. The driver actually implements this
> +behaviour. So standard i2c-mux nodes can be used to register up to four slave
> +batteries. Channels will be numerated as 1, 2, 4 and 8.

I think it's better to use channel 1-4 and do the translation in the
driver's channel select method. It means one does not have to worry
about anybody accidently configuring channel 3 and it also maps
nicely to the datasheet talking about BAT1-BAT4.

-- Sebastian

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