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| author |   Sebastian Reichel <sebastian.reichel@collabora.com> | 2020-04-14 20:11:40 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-04-15 13:00:27 +0100 |
| commit | aa7812737f2877e192d57626cbe8825cc7cf6de9 (patch) | |
| tree | e0d45d390d92bbda42c01be603518c422fd989bf /sound/soc/codecs/sgtl5000.h | |
| parent | ASoC: rockchip-i2s: add power-domains property (diff) | |
| download | wireguard-linux-aa7812737f2877e192d57626cbe8825cc7cf6de9.tar.xz wireguard-linux-aa7812737f2877e192d57626cbe8825cc7cf6de9.zip | |
ASoC: sgtl5000: Fix VAG power-on handling
As mentioned slightly out of patch context in the code, there
is no reset routine for the chip. On boards where the chip is
supplied by a fixed regulator, it might not even be resetted
during (e.g. watchdog) reboot and can be in any state.
If the device is probed with VAG enabled, the driver's probe
routine will generate a loud pop sound when ANA_POWER is
being programmed. Avoid this by properly disabling just the
VAG bit and waiting the required power down time.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Fabio Estevam <festivem@gmail.com>
Link: https://lore.kernel.org/r/20200414181140.145825-1-sebastian.reichel@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/sgtl5000.h b/sound/soc/codecs/sgtl5000.h index a4bf4bca95bf..56ec5863f250 100644 --- a/sound/soc/codecs/sgtl5000.h +++ b/sound/soc/codecs/sgtl5000.h @@ -233,6 +233,7 @@ /* * SGTL5000_CHIP_ANA_CTRL */ +#define SGTL5000_CHIP_ANA_CTRL_DEFAULT 0x0133 #define SGTL5000_LINE_OUT_MUTE 0x0100 #define SGTL5000_HP_SEL_MASK 0x0040 #define SGTL5000_HP_SEL_SHIFT 6 |