linux-kernel - Re: [PATCH 2/2] Input: nomadik-ske-keypad

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Date:	Mon, 5 Nov 2012 13:37:00 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Ulf Hansson <ulf.hansson@...ricsson.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Naveen Kumar Gaddipati <naveen.gaddipati@...ricsson.com>
Subject: Re: [PATCH 2/2] Input: nomadik-ske-keypad - start using the apb_pclk

On Mon, Nov 5, 2012 at 1:25 PM, Ulf Hansson <ulf.hansson@...aro.org> wrote:
> On 4 November 2012 19:12, Linus Walleij <linus.walleij@...aro.org> wrote:

>> If I understand correctly, the only "real" solution is to
>> implement the PM domains and have these enable the clocks.
>
> Agree.
>
> Although, since the pm_domain not yet exist, this as a way forward for
> now - to fix what is broken.

True. Fixing regressions is more important.
Acked-by: Linus Walleij <linus.walleij@...aro.org>

> When the pm_domain is in place and when we decide to fold in the clock
> handling in there, we can move it.

OK for me.

>> An alternative may be to move this driver over to the AMBA bus,
>> because I think this device actually has primecell registers.
>> Then the bus will take care of the pclk for starters.
>
> You are definitely right, this driver can be converted into using the AMBA bus.
> Although, do you think that should be done _instead_ of going ahead
> with this patch or do you want that to be handled as a next and a
> separate step?

No, just a suggestion of possibilities...

Yours,
Linus Walleij
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