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From: Mike Dunn <mikedunn@newsguy.com>
To: Igor Grinberg <grinberg@compulab.co.il>
Cc: Marek Vasut <marex@denx.de>,
	alsa-devel@alsa-project.org, Eric Miao <eric.y.miao@gmail.com>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/4] ALSA: pxa27x: ac97 controller driver requests gpio
Date: Mon, 07 Jan 2013 08:40:01 -0800	[thread overview]
Message-ID: <50EAFA61.7000209@newsguy.com> (raw)
In-Reply-To: <50EAEBD8.40002@compulab.co.il>

On 01/07/2013 07:38 AM, Igor Grinberg wrote:
> On 01/07/13 16:10, Mike Dunn wrote:


[..]


>>
>> Well, I won't make a fuss on this point, but with code that runs very
>> infrequently, I thought that the cost of a call to gpio_direction_output() was
>> worth the clarity and insurance.
> 
> This is not about how frequent the code runs, but the fact that the arch code
> relies on sound code (outside of arch) to request the GPIO for it.
> I would recommend to place the GPIO request call along with the
> direction/value calls - in the same subsystem.


OK.  This is in some shared pxa code called by the ac97 driver during
initialization, where I earlier placed the gpio_request() calls only.


> 
> Also, the patch ordering is not good:
> patch 2 drives the GPIO, and patch 3 requests it,
> whereas it should be the other way around, so I would recommend to
> combine both into one.


Agreed.

Thanks,
Mike

  reply	other threads:[~2013-01-07 16:39 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-06 19:13 [PATCH 0/4] ALSA: pxa27x: ac97 reset fixes Mike Dunn
2013-01-06 19:13 ` [PATCH 1/4] ALSA: pxa2xx: fix ac97 cold reset Mike Dunn
2013-01-07  9:16   ` Igor Grinberg
2013-01-07 13:36     ` Mike Dunn
2013-01-07 13:57       ` Igor Grinberg
2013-01-07 14:19         ` Mike Dunn
2013-01-07 15:28           ` Igor Grinberg
2013-01-06 19:13 ` [PATCH 2/4] ALSA: pxa27x: fix ac97 warm reset bug work-around code Mike Dunn
2013-01-07  9:31   ` Igor Grinberg
2013-01-07 11:06     ` Russell King - ARM Linux
2013-01-07 13:40     ` Mike Dunn
2013-01-06 19:13 ` [PATCH 3/4] ALSA: pxa27x: ac97 controller driver requests gpio Mike Dunn
2013-01-07  9:36   ` Igor Grinberg
2013-01-07  9:42     ` Igor Grinberg
2013-01-07 14:10     ` Mike Dunn
2013-01-07 15:38       ` Igor Grinberg
2013-01-07 16:40         ` Mike Dunn [this message]
2013-01-06 19:14 ` [PATCH 4/4] ALSA: pxa27x: rename pxa27x_assert_ac97() Mike Dunn
2013-01-07  9:39   ` Igor Grinberg
2013-01-07 14:34     ` Mike Dunn
2013-01-07 15:41       ` Igor Grinberg
2013-01-06 20:33 ` [PATCH 0/4] ALSA: pxa27x: ac97 reset fixes Robert Jarzmik

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