linux-kernel - Re: [PATCH V1] regmap: Support for caching in reg_raw

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Message-ID: <20120210121405.GD6472@opensource.wolfsonmicro.com>
Date:	Fri, 10 Feb 2012 12:14:05 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Laxman Dewangan <ldewangan@...dia.com>, gregkh@...uxfoundation.org,
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH V1] regmap: Support for caching in reg_raw_write()

On Fri, Feb 10, 2012 at 01:01:26PM +0100, Lars-Peter Clausen wrote:

> In my opinion it makes more sense to introduce a regmap_bulk_write function
> for this. regmap_raw_write was not really meant to write registers but

This isn't exclusive to that, I think Laxman planned to send a patch
doing that on top of this one which would be what most users would end
up using.

> rather binary blobs, like firmware. Also this keeps things consistent with
> the read part of the regmap API.

See the previous discussion on this in the past day or so - bulk_write()
is more complicated to implement by itself since it's going to end up
boling down to a raw_write() internally anyway (as does reg_write()) and
it seems nicer to just do the right thing if people ask for it.  

We can always refactor later to improve performance if needed but this
is a simple starting point.

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