linux-kernel - Re: [PATCH v2 11/14] Documentation: dt: binding: omap: am43x timer

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Date:	Tue, 28 May 2013 22:25:09 +0100
From:	Jon Hunter <jgchunter@...il.com>
To:	Afzal Mohammed <afzal@...com>
CC:	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Russell King <linux@....linux.org.uk>,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...aro.org>,
	Benoit Cousson <benoit.cousson@...aro.org>
Subject: Re: [PATCH v2 11/14] Documentation: dt: binding: omap: am43x timer


On 27/05/13 15:37, Afzal Mohammed wrote:
> AM43x timer bindings.
> 
> Signed-off-by: Afzal Mohammed <afzal@...com>
> ---
>  Documentation/devicetree/bindings/arm/omap/timer.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/omap/timer.txt b/Documentation/devicetree/bindings/arm/omap/timer.txt
> index d02e27c..70cb398 100644
> --- a/Documentation/devicetree/bindings/arm/omap/timer.txt
> +++ b/Documentation/devicetree/bindings/arm/omap/timer.txt
> @@ -14,6 +14,8 @@ Required properties:
>  			ti,omap5430-timer (applicable to OMAP543x devices)
>  			ti,am335x-timer	(applicable to AM335x devices)
>  			ti,am335x-timer-1ms (applicable to AM335x devices)
> +			"ti,am4372-timer-1ms", "ti,am335x-timer-1ms" for AM43x 1ms timer
> +			"ti,am4372-timer", "ti,am335x-timer" for AM43x timers other than 1ms one
>  
>  - reg:			Contains timer register address range (base address and
>  			length).

If you are adding more compatibility strings, then this implies that the
AM43x timers are not 100% compatible with any other device listed (such
as am335x or any omap device). That's fine but you should state that in
the changelog. If the AM43x timer registers are 100% compatible with
existing devices you should not add these.

Jon

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