The patch
ASoC: tlv320aic3x: Mark the RESET register as volatile
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 63c3194b82530bd71fd49db84eb7ab656b8d404a Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi peter.ujfalusi@ti.com Date: Fri, 23 Dec 2016 11:21:10 +0200 Subject: [PATCH] ASoC: tlv320aic3x: Mark the RESET register as volatile
The RESET register only have one self clearing bit and it should not be cached. If it is cached, when we sync the registers back to the chip we will initiate a software reset as well, which is not desirable.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com Reviewed-by: Jarkko Nikula jarkko.nikula@bitmer.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/tlv320aic3x.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 8877b74b0510..bb94d50052d7 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -126,6 +126,16 @@ static const struct reg_default aic3x_reg[] = { { 108, 0x00 }, { 109, 0x00 }, };
+static bool aic3x_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AIC3X_RESET: + return true; + default: + return false; + } +} + static const struct regmap_config aic3x_regmap = { .reg_bits = 8, .val_bits = 8, @@ -133,6 +143,9 @@ static const struct regmap_config aic3x_regmap = { .max_register = DAC_ICC_ADJ, .reg_defaults = aic3x_reg, .num_reg_defaults = ARRAY_SIZE(aic3x_reg), + + .volatile_reg = aic3x_volatile_reg, + .cache_type = REGCACHE_RBTREE, };