On Fri, Jan 23, 2015 at 04:21:37PM +0100, Lars-Peter Clausen wrote:
The wm97xx touchscreen driver binds itself to the snd_ac97 device that gets registered by the CODEC driver and expects that the device has already been reset. Before commit 6794f709b712 ("ASoC: ac97: Drop delayed device registration") the device was only registered after the probe function of the CODEC driver had finished running, but starting with the mentioned commit the device is registered as soon as snd_soc_new_ac97_codec() is called. This causes the touchscreen driver to no longer work. Modify the CODEC drivers to use snd_soc_alloc_ac97_codec() instead of snd_soc_new_ac97_codec() and make sure that the AC'97 device is reset before the snd_ac97 device gets registered.
Fixes: 6794f709b712 ("ASoC: ac97: Drop delayed device registration") Reported-by: Manuel Lauss manuel.lauss@gmail.com Signed-off-by: Lars-Peter Clausen lars@metafoo.de
Looks fine to me.
Acked-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com
Thanks, Charles