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Date: Thu, 02 Jul 2015 09:46:45 +0200
From: Lars-Peter Clausen <lars@metafoo.de>
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To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
        Mark Brown <broonie@kernel.org>
CC: Linux-Kernel <linux-kernel@vger.kernel.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        shiiba <naoya.shiiba.nx@renesas.com>
Subject: Re: [PATCH 0/4][RFC] regmap: add force write option
References: <87616ojaw9.wl%kuninori.morimoto.gx@renesas.com>
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On 06/16/2015 10:51 AM, Kuninori Morimoto wrote:
>
> Hi Mark
>
> Current _regmap_update_bits() writes data to register if current value and
> write value was different. This means it doesn't write data if the value was
> same as current value.
> But, some device needs to write data even though it was same value.

Can you go into more detail about the exact usecase with a specific example?