If an rt5514-spi device is probed but the platform hasn't linked it in,
we might never fully request the SPI IRQ, nor configure the rt5514 DSP,
but we still might try to enable the SPI IRQ (enable_irq_wake()). This
is bad, and among other things, can cause the interrupt to trigger every
time we try to suspend the system (e.g., because the interrupt trigger
setting was never set properly).

Instead of setting our wakeup capabilities in the SPI driver probe
routine, let's wait until we've actually requested the IRQ.

Fixes issues seen on the "kevin" Chromebook (Samsung Chromebook Plus).

Fixes: 58f1c07d ("ASoC: rt5514: Voice wakeup support.")
Signed-off-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

If the rt5514 spi driver is loaded, but the snd_soc_platform_driver is not
loaded by the correct DAI settings, the NULL pointer will be gotten by
snd_soc_platform_get_drvdata in the resume function.
Signed-off-by: NOder Chiou <oder_chiou@realtek.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The patch makes sure the DMIC delay will be happened after normal SUPPLY
widgets power on. If there are some platforms that provide the MCLK using
the SUPPLY widget, it will make sure the delay time is helpful.
Signed-off-by: NOder Chiou <oder_chiou@realtek.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Merge remote-tracking branches 'asoc/topic/tfa9879', 'asoc/topic/ts3a277e', 'asoc/topic/wm8741', 'asoc/topic/wm97xx' and 'asoc/topic/zte' into asoc-next

Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sgtl5000', 'asoc/topic/stm32', 'asoc/topic/sunxi' and 'asoc/topic/tas571x' into asoc-next

Merge remote-tracking branches 'asoc/topic/rt5645', 'asoc/topic/rt5651', 'asoc/topic/rt5659', 'asoc/topic/rt5663' and 'asoc/topic/rt5670' into asoc-next

Merge remote-tracking branches 'asoc/topic/max98925', 'asoc/topic/max98927', 'asoc/topic/msm8916' and 'asoc/topic/omap' into asoc-next

Merge remote-tracking branches 'asoc/topic/hdmi', 'asoc/topic/img' and 'asoc/topic/kirkwood' into asoc-next

Merge remote-tracking branches 'asoc/topic/dwc', 'asoc/topic/fallthrough', 'asoc/topic/fsi', 'asoc/topic/fsl' and 'asoc/topic/graph' into asoc-next

Merge remote-tracking branches 'asoc/topic/cygnus', 'asoc/topic/da7213', 'asoc/topic/davinci' and 'asoc/topic/doc' into asoc-next

Merge remote-tracking branches 'asoc/topic/bcm2835', 'asoc/topic/cs42l56' and 'asoc/topic/cs43130' into asoc-next

Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/ac97-mfd', 'asoc/topic/amd' and 'asoc/topic/arizona-mfd' into asoc-next

ASoC: Fixes for v4.14

I've been quite lax in sending these due to conference season but here's
a fairly large collection of ASoC updates.  The one thing that's not
device specific is Takashi's fix for races between delayed work and PCM
destruction, otherwise everything is specific to an individual device.

# gpg: Signature made Thu 26 Oct 2017 15:11:23 BST
# gpg:                using RSA key ADE668AA675718B59FE29FEA24D68B725D5487D0
# gpg:                issuer "broonie@kernel.org"
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" [unknown]
# gpg:                 aka "Mark Brown <broonie@debian.org>" [unknown]
# gpg:                 aka "Mark Brown <broonie@kernel.org>" [unknown]
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>" [unknown]
# gpg:                 aka "Mark Brown <broonie@linaro.org>" [unknown]
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0

DSP modes and left/right justified modes can be supported
on bcm2835 by configuring the frame sync polarity and
frame sync length registers and by adjusting the
channel data position registers.

Clock and frame sync polarity handling in hw_params has
been refactored to make the interaction between logical
rising/falling edge frame start and physical configuration
(changed by normal/inverted polarity modes) clearer.

Modes where the first active data bit is transmitted immediately
after frame start (eg DSP mode B with slot 0 active)
only work reliable if bcm2835 is configured as frame master.
In frame slave mode channel swap (or shift, this isn't quite
clear yet) can occur.

Currently the driver only warns if an unstable configuration
is detected but doensn't prevent using them.
Signed-off-by: NMatthias Reichl <hias@horus.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

bcm2835's configuration registers can't be changed when a stream
is running, which means asymmetric configurations aren't supported.

Channel and rate symmetry are already enforced by constraints
but samplebits had been missed.

As hw_params doesn't check for symmetry constraints by itself
and just returns success if a stream is running this led to
situations where asymmetric configurations were seeming to
succeed but of course didn't work because the hardware wasn't
configured at all.

Fix this by adding the missing samplerate symmetry constraint.
Signed-off-by: NMatthias Reichl <hias@horus.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Sample rates are only restricted by the capabilities of the
clock driver, so use SNDRV_PCM_RATE_CONTINUOUS instead of
SNDRV_PCM_RATE_8000_192000.

Tests (eg with pcm5122) have shown that bcm2835 works fine
in 384kHz/32bit stereo mode, so change the maximum allowed
rate from 192kHz to 384kHz.
Signed-off-by: NMatthias Reichl <hias@horus.com>
Reviewed-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NMark Brown <broonie@kernel.org>

bcm2835 supports arbitrary positioning of channel data within
a frame and thus is capable of supporting TDM modes. Since
the driver is limited to 2-channel operations only TDM setups
with exactly 2 active slots are supported.

Logical TDM slot numbering follows the usual convention:

For I2S-like modes, with a 50% duty-cycle frame clock,
slots 0, 2, ... are transmitted in the first half of a frame,
slots 1, 3, ... are transmitted in the second half.

For DSP modes slot numbering is ascending: 0, 1, 2, 3, ...

Channel position calculation has been refactored to use
TDM info and moved out of hw_params.

set_tdm_slot, set_bclk_ratio and hw_params now check more
strictly if the configuration is valid. Illegal configurations
like odd number of slots in I2S mode, data lengths exceeding
slot width or frame sizes larger than the hardware limit of
1024 are rejected. Also hw_params now properly checks for
errors from clk_set_rate.

Allowed PCM formats are already guarded by stream constraints,
thus the formats check in hw_params has been removed and
data_length is now retrieved via params_width().

Also standard functions like snd_soc_params_to_bclk are now
being used instead of manual calculations to make the code
more readable.

Special care has been taken to ensure that set_bclk_ratio works
as before. The bclk ratio is mapped to a 2-channel TDM config
with a slot width of half the ratio. In order to support odd ratios,
which can't be expressed via a TDM config, the ratio (frame length)
is stored and used by hw_params.
Signed-off-by: NMatthias Reichl <hias@horus.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add mclk-fs support to audio graph card
as it was previously implemented in simple card.
Signed-off-by: NOlivier Moysan <olivier.moysan@st.com>
Acked-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add mclk-fs support to audio graph card
as initially supported in simple card.
Signed-off-by: NOlivier Moysan <olivier.moysan@st.com>
Acked-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The main rt5514 driver optionally calls into the SPI back-end to load
the firmware. This causes a link error when one driver selects rt5514
as built-in and another driver selects rt5514-spi as a loadable module:

sound/soc/codecs/rt5514.o: In function `rt5514_dsp_voice_wake_up_put':
rt5514.c:(.text+0xac8): undefined reference to `rt5514_spi_burst_write'

As a workaround, this adds another silent symbol, to force rt5514-spi
to be built-in for that configuration. I'm not overly happy with
that solution, but couldn't come up with anything better. Using
'IS_REACHABLE()' would break the case that relies on the loadable
module, and all other ideas would result in more complexity.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

The new functions are only used when CONFIG_PM is enabled,
leading to a harmless warning:

sound/soc/codecs/rt5514-spi.c:474:12: error: 'rt5514_resume' defined but not used [-Werror=unused-function]
sound/soc/codecs/rt5514-spi.c:464:12: error: 'rt5514_suspend' defined but not used [-Werror=unused-function]

This marks them as __maybe_unused to make the build silent
again.

Fixes: 58f1c07d ("ASoC: rt5514: Voice wakeup support.")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

Check the JD status in the button pushing to prevent the IRQ that is locked
by button pushing event while the jack unpluging.
Signed-off-by: NOder Chiou <oder_chiou@realtek.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Before rendering starts, DMA driver copies full buffer valid data
to ACP SRAM for the first time, after that ACP SRAM to I2S
FIFO DMA will be initiated. After rendering first half of ACP SRAM,
IOC will be raised then Audio data will be copied from first half of
System Memory to first half of ACP SRAM. Similarly after rendering
second half of ACP SRAM, IOC will be raised then Audio Data will be
copied from second half of the System Memory to second half of the
ACP SRAM in ping-pong way till rendering stops.

Old design introducing latency issues resulting stutter sound observed
during playback.
Signed-off-by: NVijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: NAkshu Agrawal <Akshu.Agrawal@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Minimum time required between power On of codec and read
of RT5645_VENDOR_ID2 is 400msec. We should wait that long
before reading the value.

TEST=Cold boot the device and check for sound device.
Signed-off-by: NAkshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: NBard Liao <bardliao@realtek.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

32bit and 24bit audio capture formats for H3/H2+ are broken because the
RX_SAMPLE_BITS and the RX_FIFO_MODE bits of AC_ADC_FIFOC register of the audio
codec are not set to operate in 24bit mode but in 16bit mode only.
The following patch sets the H3 audio codec registers and the DMA bus width
properly when a 24/32bit capture is requested.
Signed-off-by: NAndrea Bondavalli <andrea.bondavalli74@gmail.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

DSP modes are documented in the data sheet but not enabled in the driver.
The work-around already implemented for DA7218/9 is also required to
make sure the bit clock handling in DSP modes follows ASoC conventions.

Tested with ARD-AUDIO-DA7212 and Minnowmax Turbot boards
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The current code might be a bit intriguing without having experienced the
issue before, and might come up as a mistake.

Make explicit what's going on by adding a comment.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

While the current code was reporting to be able to work in master mode, it
failed to do so because the BCLK divider wasn't programmed, meaning that
the BCLK would run at the PLL's frequency no matter the sample rate.

It was obviously a bit too fast.

Add support to retrieve the divider to use, and set it. Since our PLL is
not always able to generate a perfect multiple of the sample rate, we'll
have to choose the closest divider that matches our setup.

Fixes: 36c68493 ("ASoC: Add sun8i digital audio codec")
Reviewed-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>

In the probe, the codec may not be ready for I2C reading or there are some
glitches on the i2c line. So if the i2c reading value is incorrect, it will
read again after delay. This issue is similar the patch
https://patchwork.kernel.org/patch/9681421/. In current project, these 2
devices were connected to the same i2c line, and they met the same problem.
Signed-off-by: NOder Chiou <oder_chiou@realtek.com>
Signed-off-by: NMark Brown <broonie@kernel.org>