On Tue, Mar 31, 2009 at 08:15:40PM +0100, Mark Brown wrote:
On Tue, Mar 31, 2009 at 07:37:55PM +0100, Russell King - ARM Linux wrote:
I don't think this is the complete story. Sometime between 2.6.27 and 2.6.29, the structure below /sys/devices/platform/soc-audio changed (the ac97 codec moved to the top level.)
Oh, are you using the ac97.c codec driver?
No, I'm using the wm9705 driver.
With a normal ASoC codec driver the AC97 codec is not visible as a separate device in the device tree - if you could point me to your machine driver that'd be helpful.
Not true - the codec appears as /sys/devices/0-0:WM9705 rather than a sub-device of the AC97 controller. Below this there are two sub-devices:
/sys/devices/0-0:WM9705/wm97xx-battery /sys/devices/0-0:WM9705/wm97xx-touch
The wm97xx-ts touchscreen driver binds to the 0-0:WM9705 device, so clearly unless 0-0:WM9705 is a child of the AC97 controller, things aren't going to be guaranteed to be resumed in the right order.