There is a regmap fix which is mandatory to the latest alsa driver, but this fix is not in the trusty kernel. The regmap fix is as below:
commit 4ceba98d3fe204c59e5f63c4d834b45dcfe789f0 Author: Takashi Iwai <[email protected]> Date: Wed Mar 4 15:29:17 2015 +0100 regmap: Skip read-only registers in regcache_sync() regcache_sync() spews warnings when a value was cached for a read-only register as it tries to write all registers no matter whether they are writable or not. This patch adds regmap_wrtieable() checks for avoiding it in regcache_sync_block_single() and regcache_block_raw(). Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Mark Brown <[email protected]> diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index f373c35..da84f54 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1448830 Title: alsa daily dkms can't work well under ubuntu kernels (audio can't work after resume from S3) To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1448830/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
