linux-kernel - Re: [PATCH] [media] V4L: atmel-isi: add code to enable/disable ISI

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Date:	Mon, 28 Nov 2011 16:00:55 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	linux-arm-kernel@...ts.infradead.org, g.liakhovetski@....de,
	josh.wu@...el.com, linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org
Subject: Re: [PATCH] [media] V4L: atmel-isi: add code to enable/disable
	ISI_MCK clock

On Mon, Nov 28, 2011 at 02:34:44PM +0100, Nicolas Ferre wrote:
> From: Josh Wu <josh.wu@...el.com>
> 
> This patch
> - add ISI_MCK clock enable/disable code.
> - change field name in isi_platform_data structure
> 
> Signed-off-by: Josh Wu <josh.wu@...el.com>
> [g.liakhovetski@....de: fix label names]
> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@....de>
> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
> Guennadi,
> 
> Here is the pach form Josh and yourself about the Atmel ISI driver
> modifications. I have rebased it on top of 3.2-rc3 (and tested it on
> linux-next also).
> I plan to submit the board/device related patches (2-3/3 of this series) to
> the arm-soc tree real soon. Do you whant me to include this one or can you
> schedulle an inclusion in mainline for 3.3?

While you're doing this, why not also prepare for the common clk API by
adding support for clk_prepare()/clk_unprepare() to these drivers?

We are actually now at the point where we should be saying a firm no to
any new introductions of clk_enable()/clk_disable() without there being
corresponding clk_prepare()/clk_unprepare() calls for that clk.
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