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| author |   Francesco Dolcini <francesco.dolcini@toradex.com> | 2022-06-24 12:13:01 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2022-07-07 17:16:19 +0100 |
| commit | 040e3360af3736348112d29425bf5d0be5b93115 (patch) | |
| tree | de686e50913562fbcb9dcd3d663e93cdb8802634 /sound/soc/codecs/sgtl5000.h | |
| parent | ASoC: madera: Fix event generation for rate controls (diff) | |
| download | linux-dev-040e3360af3736348112d29425bf5d0be5b93115.tar.xz linux-dev-040e3360af3736348112d29425bf5d0be5b93115.zip | |
ASoC: sgtl5000: Fix noise on shutdown/remove
Put the SGTL5000 in a silent/safe state on shutdown/remove, this is
required since the SGTL5000 produces a constant noise on its output
after it is configured and its clock is removed. Without this change
this is happening every time the module is unbound/removed or from
reboot till the clock is enabled again.
The issue was experienced on both a Toradex Colibri/Apalis iMX6, but can
be easily reproduced everywhere just playing something on the codec and
after that removing/unbinding the driver.
Fixes: 9b34e6cc3bc2 ("ASoC: Add Freescale SGTL5000 codec support")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20220624101301.441314-1-francesco.dolcini@toradex.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 56ec5863f250..3a808c762299 100644 --- a/sound/soc/codecs/sgtl5000.h +++ b/sound/soc/codecs/sgtl5000.h @@ -80,6 +80,7 @@ /* * SGTL5000_CHIP_DIG_POWER */ +#define SGTL5000_DIG_POWER_DEFAULT 0x0000 #define SGTL5000_ADC_EN 0x0040 #define SGTL5000_DAC_EN 0x0020 #define SGTL5000_DAP_POWERUP 0x0010 |