[alsa-devel] [PATCH RFC 1/3] ASoC: uda1380: use callbacks instead of gpiolib

[Mark Brown]

On Mon, Jun 28, 2010 at 05:05:51PM +0300, Vasily Khoruzhick wrote:
> В сообщении от 28 июня 2010 16:50:46 автор Mark Brown написал:
> > So this is an on-board power source that's being controlled by the GPIO
> > rather than an external device?

> That's just gpio-based power control for uda1380 (not sure about schematics, 
> it's not available). Same approach is used in h1940 and magician.

What I'm trying to figure out is if the GPIO is wired directly to the
UDA1380 or if this is controlling something external to the UDA1380
which these designs just happen to have copied.  If it's a direct
connection to the UDA1380 then using GPIOs directly is perfectly
sensible.