Content of the CX20442's snd_soc_codec_driver.reg_cache_default pointed area, introduced with my recent NULL pointer dereferece fix (commit f019ee5feb344ff0b22b58df4568676295aae14f), occured wrong after further testing, more thorough than just booting successfully. There are two problems with it:
1) It should read (1 << CX20442_TELOUT) | (1 << CX20442_MIC), not CX20442_TELOUT | CX20442_MIC.
2) While correctly matching actual codec hardware state on boot when fixed per 1), a few more code modifications would still be required to reflect that state not only into register cache, but also force them into DAPM pins state, otherwise an inconsitency occures which may prevent further codec state changes from being applied correctly. As a result, the phone stops ringing after reboot, until someone picks up the handset for the first time.
Revert that reg_cache_default content to a working, previous de facto default value of 0, in hope this change can still be accepted as an rc cycle fix.
Created and tested against linux-2.6.38-rc4
Signed-off-by: Janusz Krzysztofik jkrzyszt@tis.icnet.pl ---
sound/soc/codecs/cx20442.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- git/sound/soc/codecs/cx20442.c.orig 2011-02-10 00:52:33.000000000 +0100 +++ git/sound/soc/codecs/cx20442.c 2011-02-10 12:17:31.000000000 +0100 @@ -367,7 +367,7 @@ static int cx20442_codec_remove(struct s return 0; }
-static const u8 cx20442_reg = CX20442_TELOUT | CX20442_MIC; +static const u8 cx20442_reg;
static struct snd_soc_codec_driver cx20442_codec_dev = { .probe = cx20442_codec_probe,