kernel-packages team mailing list archive

[Hui Wang <hui.wang@xxxxxxxxxxxxx>]

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 <tiwai@xxxxxxx>
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 <tiwai@xxxxxxx>
    Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>

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

-- 
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Packages, which is subscribed to linux in 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)

Status in HWE Next Project:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This bug is used for tracking purposes. Please do not triage.

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