[alsa-devel] wm97xx touch does not work after ac97 delayed dev reg removal

Manuel Lauss manuel.lauss at gmail.com
Mon Jan 19 16:46:00 CET 2015


Hi Lars,

Since commit 6794f709b7124ff1e574c4f4c9494418ab56c4b4
(ASoC: ac97: Drop delayed device registration) the wm9712 ts on
my MIPS DB1300 board doesn't work any more:

wm97xx-ts 0-0:wm9712-codec.1: Device with vendor 0000 is not a wm97xx
db1200-ac97 db1300-ac97.0: wm9712-hifi <-> au1xpsc_ac97.1 mapping ok
wm9712-codec wm9712-codec.1: ASoC: mux Differential Source has no paths
wm9712-codec wm9712-codec.1: ASoC: mux Capture Phone Mux has no paths
db1200-ac97 db1300-i2s.0: wm8731-hifi <-> au1xpsc_i2s.2 mapping ok

whereas before this patch:
[    1.820000] db1200-ac97 db1300-ac97.0: wm9712-hifi <->
au1xpsc_ac97.1 mapping ok
[    1.820000] wm9712-codec wm9712-codec.1: ASoC: mux Differential
Source has no paths
[    1.830000] wm9712-codec wm9712-codec.1: ASoC: mux Capture Phone
Mux has no paths
[    1.840000] wm97xx-ts 0-0:wm9712-codec.1: detected a wm9712 codec
[    1.850000] input: wm97xx touchscreen as
/devices/platform/db1300-ac97.0/0-0:wm9712-codec.1/input/input0
[    1.860000] db1200-ac97 db1300-i2s.0: wm8731-hifi <-> au1xpsc_i2s.2
mapping ok


Do you have any ideas how to solve this?

Thanks!
     Manuel


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