The patch
ASoC: ak4613: Enable cache usage to fix crashes on resume
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From dcd2d1f78664fdc75eadaaf65257834e24383d01 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven geert+renesas@glider.be Date: Thu, 16 Jun 2016 14:34:30 +0200 Subject: [PATCH] ASoC: ak4613: Enable cache usage to fix crashes on resume
During system resume:
kernel BUG at drivers/base/regmap/regcache.c:347! ... PC is at regcache_sync+0x1c/0x128 LR is at ak4613_resume+0x28/0x34
The ak4613 driver is using a regmap cache sync to restore the configuration of the chip on resume but does not actually define a register cache which means that the resume is never going to work and we trigger asserts in regmap. Fix this by enabling caching.
Based on commit d3030d11961a8c10 ("ASoC: ak4642: Enable cache usage to fix crashes on resume") by Mark Brown broonie@kernel.org.
Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/ak4613.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c index 33d2f2e10e24..5013d2ba0c10 100644 --- a/sound/soc/codecs/ak4613.c +++ b/sound/soc/codecs/ak4613.c @@ -146,6 +146,7 @@ static const struct regmap_config ak4613_regmap_cfg = { .max_register = 0x16, .reg_defaults = ak4613_reg, .num_reg_defaults = ARRAY_SIZE(ak4613_reg), + .cache_type = REGCACHE_RBTREE, };
static const struct of_device_id ak4613_of_match[] = {