On Tue, Jan 27, 2009 at 5:22 PM, Vasily Khoruzhick <anarsoul@xxxxxxxxx> wrote: > On Tuesday 27 January 2009 18:06:47 pHilipp Zabel wrote: > >> Could you show the code? >> On magician I'm just powering up uda1380 when the driver is loaded, >> but I wouldn't mind saving some power :) >> There are two GPIOs involved - one connected to the uda1380's RESET >> line and one to control the power. >> The last one doesn't have anything to do with uda1380, really. It's an >> external power switch in a PMIC (or CPLD, on magican) so it would be >> nice if this code could live in the machine specific drivers. >> >> regards >> Philipp > > Yep, of course, here's machine driver (originally created by Denis Grigoriev) > and modified codec driver. > > Btw, on rx1950 there're 4 gpio pins involved: > GPJ0 controls codec power > GPA1 controls amplifier power > GPG12 is jack sense pin, it's value depends whether headphone jack is inserted > or not, > and GPD0 is connected to uda1380 reset. The uda1380 data sheet says that the reset time should be at least 1 µs - could that be a problem? regards Philipp _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
