The set_bias_level toggles the PDN signal when entering
SND_SOC_BIAS_STANDBY and SND_SOC_BIAS_OFF. However this has no effect and
actually breaks things down (tested with TAS5717) due to the following
reasons:
1) holding down PDN does not save power but holding down RST does
2) now hard mute via register 0x5 is implemented and therefore it is no
longer needed to toggle PDN to enter all channel shut down
3) in order to leave PDN it is required to toggle the RST signal (see
TAS5721 datasheet), which was not implemented
4) toggling PDN as implemented actually mutes PWMs and there is no audio
output (tested on TAS5717)
For these reasons remove the PDN signal toggling and just initialize it to
inactive in probe().
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
TAS5721 datasheet recommends to wait at least 13.5ms after deasserting the
RESET signal. For TAS5717 this time is only 12ms, which was the original
value in the code.
Extend the wait time after deasserting RESET from 12 to 13.5ms to comply
with the TAS5721 specification.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
Channel 1 and 2 Mixer Volume controls (registers 0x72/0x73 and 0x76/0x77)
were wrongly assigned to tas5711_controls in commit f252d2346022
("ASoC: tas571x: add input channel mixer for TAS5717/19")
Therefore move them to tas5717_controls.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
Wait extra 50ms after writing the oscillator trim register in probe(), as
recommended by the TAS5721 and TAS5711 datasheets.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
codec driver and component driver has duplicated callback functions,
and codec side functions are just copied to component side when
register timing. This was quick-hack, but no longer needed.
This patch moves these functions from codec driver to component driver.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add channel 1 and 2 input mixer registers and the related ALSA mixer
controls for TAS5717/19 chips.
The mixer control coefficients on the chip are linear in the range
-3.99999 to +3.99999, encoded in 3.23 number format.
In this patch the mixer controls are limited to 128 values
from 0.0 to 1.0 in 1/64 steps.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
TAS571x features multiple biquad filters. Their coefficients
are stored in 20-byte registers, which cannot be supported by
regmap.
This patch adds read and write functions for multi-word (32-bit) register
access and mixer controls for the biquads. The multi-word read/write
functions can be used in the future to implement other features like DRC or
output mixer.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
The list of TAS571x registers was incomplete.
Added the missing register definitions up to the register 0x25.
Added volatile and read-only register tables into tas5711_regmap_config
and tas5717_regmap_config.
The chip has 256 registers in total. But from address 0x29 on
(0x26 to 0x28 are reserved) the register width varies between
20, 12 and 8 bytes, which the register map cannot represent.
Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The chip selection was relying only on DT. It was not possible to use the
driver without DT.
This adds the chip type detection from the I2C name, which
allows to use the driver from the platform driver without DT.
Signed-off-by: Petr Kulhavy <petr@barix.com>
Reviewed-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver did not have a mute function. The amplifier was brought out of
shutdown mode (hard-mute) once for ever in probe(), which was causing
clicks and pops when altering the I2C register configuration later.
This adds the digital_mute() function. The amplifier unmute in probe()
was removed.
Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The dapm field of the snd_soc_codec struct is eventually going to be
removed, in preparation for this replace all manual access to
codec->dapm.bias_level with snd_soc_codec_get_bias_level().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
of_match_device() checks if dev->of_node is NULL, so we don't need to do
it again in the probe function.
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Introduce a new codec driver for the Texas Instruments
TAS5711/TAS5717/TAS5719 power amplifier chips. These chips are typically
used to take an I2S digital audio input and drive 10-20W into a pair of
speakers.
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
