Re: [PATCH v2 02/16] pwm: pxa: update documentation regarding pwm-cells

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On Fri, Jan 12, 2018 at 04:22:49PM +0200, Claudiu Beznea wrote:
> pwm-cells should be at least 2 to provide channel number and period value.
> 
> Cc: Mike Dunn <mikedunn@xxxxxxxxxxx>
> Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/pwm/pxa-pwm.txt | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pxa-pwm.txt b/Documentation/devicetree/bindings/pwm/pxa-pwm.txt
> index 5ae9f1e3c338..a0e20edeeebc 100644
> --- a/Documentation/devicetree/bindings/pwm/pxa-pwm.txt
> +++ b/Documentation/devicetree/bindings/pwm/pxa-pwm.txt
> @@ -10,7 +10,7 @@ Required properties:
>    Note that one device instance must be created for each PWM that is used, so the
>    length covers only the register window for one PWM output, not that of the
>    entire PWM controller.  Currently length is 0x10 for all supported devices.
> -- #pwm-cells: Should be 1.  This cell is used to specify the period in
> +- #pwm-cells: Should be 2.  This cell is used to specify the period in
>    nanoseconds.

What's the new cell? channel? Does the PXA PWM have more than one 
channel? If not, then you shouldn't add a cell.

Rob
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