From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Brown <broonie@kernel.org>
Subject: Re: PWM...
Date: Mon, 20 Jan 2014 16:11:47 +0000
Message-ID: <20140120161147.GS17314@sirena.org.uk>
References: <20140119164956.GR15937@n2100.arm.linux.org.uk>
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To: Simon Horman <horms@verge.net.au>
Cc: Arnd Bergmann <arnd@arndb.de>, linux-pwm@vger.kernel.org, Russell King - ARM Linux <linux@arm.linux.org.uk>, "arm@kernel.org" <arm@kernel.org>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, Thierry Reding <thierry.reding@gmail.com>, Olof Johansson <olof@lixom.net>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>
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On Mon, Jan 20, 2014 at 09:14:46AM +0900, Simon Horman wrote:
> On Sun, Jan 19, 2014 at 09:26:40PM +0100, Arnd Bergmann wrote:

> > Right: if you change an existing dts file from #pwm-cells=<2> to
> > #pwm-cells=<3>, that requires changing all references to the pwm

> Would this change imply that old dtbs would no longer work with new kernels?

So long as the code can still handle both values for #pwm-cells existing
DTBs should work fine.

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