Commit graph

17219 commits

Author SHA1 Message Date
Marco Felsch 24ae67c582
ASoC: max98988: make it selectable
Currently the driver will build only if SND_SOC_ALL_CODECS is set.
Adding a Kconfig menu description to build the driver standalone.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-08 19:46:36 +01:00
Andreas Färber 62a7fc32a6
ASoC: max98088: Add master clock handling
If master clock is provided through device tree, then update
the master clock frequency during set_sysclk.

Cc: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Tushar Behera <trblinux@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
[m.felsch@pengutronix.de: move mclk request to i2c_probe]
[m.felsch@pengutronix.de: make use of snd_soc_component_get_bias_level()]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-08 19:46:15 +01:00
Daniel Mack 7454a21c13
ASoC: wm8782: add support for regulators
Lookup regulators for Vdd and Vdda during probe, and enable them when the
component is linked.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-08 11:25:57 +01:00
Takashi Iwai 9c6c4d961e
ASoC: topology: Use the standard fall-through annotations
As a preparatory patch for the upcoming -Wimplicit-fallthrough
compiler checks, replace with the standard "fall through" annotation.
gcc can't understand the mixed texts, unfortunately.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-05 12:38:22 +01:00
Takashi Iwai e4bfd61571
ASoC: intel: skylake: Add fall-through annotation
As a preparatory patch for the upcoming -Wimplicit-fallthrough
compiler checks, add the "fall through" annotation in Intel SST
skylake driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-05 12:38:21 +01:00
Takashi Iwai 0beeb4baf5
ASoC: rt274: Add fall-through annotations
As a preparatory patch for the upcoming -Wimplicit-fallthrough
compiler checks, add the "fall through" annotations in rt274 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-05 12:38:20 +01:00
Takashi Iwai 641f7f2195
ASoC: pcm186x: Use the standard fall-through annotation
As a preparatory patch for the upcoming -Wimplicit-fallthrough
compiler checks, replace with the standard "fall through" annotation.
Unfortunately gcc doesn't understand the mixed comment lines.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-05 12:38:19 +01:00
Takashi Iwai 7e29317928
ASoC: adau1761: Use the standard fall-through annotation
As a preparatory patch for the upcoming -Wimplicit-fallthrough
compiler checks, replace with the standard "fall through" annotation
at the right place.  It has to be put right before the next label.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-05 12:38:18 +01:00
Daniel Mack 466dee75b3
ASoC: add fault detect recovery property to DT bindings
The driver already has support for setting the FDRB bit in the CONFA
register through platform data, but there was no property to set it
in the device-tree bindings.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-04 11:41:52 +01:00
Daniel Mack cfe9ee5f2b
ASoC: pxa-ssp: enable and disable extclk if given
If a "extclk" clock is given, enable and disable it when appropriate.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-04 11:41:38 +01:00
Dan Carpenter 8e9f7265ed
ASoC: qdsp6: q6asm-dai: checking NULL vs IS_ERR()
The q6asm_audio_client_alloc() doesn't return NULL, it returns error
pointers.

Fixes: 2a9e92d371 ("ASoC: qdsp6: q6asm: Add q6asm dai driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-04 11:38:49 +01:00
Takashi Iwai 9c80c5a883
ASoC: intel: skylake: Add missing break in skl_tplg_get_token()
skl_tplg_get_token() misses a break in the big switch() block for
SKL_TKN_U8_CORE_ID entry.
Spotted nicely by -Wimplicit-fallthrough compiler option.

Fixes: 6277e83292 ("ASoC: Intel: Skylake: Parse vendor tokens to build module data")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-04 11:36:35 +01:00
YueHaibing 06da26e5ce
ASoC: qcom: qdsp6: remove duplicated include
Remove duplicated includes linux/of_platform.h
and linux/wait.h

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27 23:25:03 +01:00
Arnd Bergmann 18380dcc52
ASoC: wm9712: fix unused variable warning
The 'ret' variable is now only used in an #ifdef, and causes a
warning if it is declared outside of that block:

sound/soc/codecs/wm9712.c: In function 'wm9712_soc_probe':
sound/soc/codecs/wm9712.c:641:6: error: unused variable 'ret' [-Werror=unused-variable]

Fixes: 2ed1a8e0ce ("ASoC: wm9712: add ac97 new bus support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27 23:22:54 +01:00
Arnd Bergmann 53c156ab9d
ASoC: atmel: add SND_SOC_I2C_AND_SPI dependency
Selecting SND_SOC_WM8731 is only allowed when all its dependencies
are already there:

WARNING: unmet direct dependencies detected for SND_SOC_WM8731
  Depends on [m]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_I2C_AND_SPI [=m]
  Selected by [y]:
  - SND_SOC_MIKROE_PROTO [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_ATMEL_SOC [=y] && OF [=y]
  Selected by [m]:
  - SND_AT91_SOC_SAM9X5_WM8731 [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_ATMEL_SOC [=y] && (ARCH_AT91 [=y] || COMPILE_TEST [=y]) && ATMEL_SSC [=y] && SND_SOC_I2C_AND_SPI [=m]
  - SND_SOC_ALL_CODECS [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && COMPILE_TEST [=y] && SND_SOC_I2C_AND_SPI [=m]

Fixes: a45f8853a5 ("ASoC: Add driver for PROTO Audio CODEC (with a WM8731)")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27 23:22:40 +01:00
Arnd Bergmann bec5ecdf41
ASoC: pxa: avoid AC97_BUS build warning
Selecting AC97_BUS_NEW from SND_PXA2XX_SOC_AC97 leads to a Kconfig
warning if any other driver selects AC97_BUS:

WARNING: unmet direct dependencies detected for AC97_BUS_COMPAT
  Depends on [n]: SOUND [=y] && !UML && SND [=y] && AC97_BUS_NEW [=y] && !AC97_BUS [=y]
  Selected by [y]:
  - SND_SOC_WM9713 [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && AC97_BUS_NEW [=y]

I don't know if that combination is supposed to work.
Assuming it is not, this adds a dependency on all users
for PXA to avoids the combination.

Fixes: 1c8bc7b3de ("ASoC: pxa: switch to new ac97 bus support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27 23:22:26 +01:00
Matthias Kaehlcke 42cfb412e2
ASoC: soc-utils: Rename dummy_dma_ops to snd_dummy_dma_ops
The symbols 'dummy_dma_ops' is declared with different data types by
sound/soc/soc-utils.c and arch/arm64/include/asm/dma-mapping.h. This
leads to conflicts when soc-utils.c (indirectly) includes dma-mapping.h:

sound/soc/soc-utils.c:282:33: error: conflicting types for 'dummy_dma_ops'
  static const struct snd_pcm_ops dummy_dma_ops = {
                                  ^
...
arch/arm64/include/asm/dma-mapping.h:27:33: note: previous declaration of 'dummy_dma_ops' was here
  extern const struct dma_map_ops dummy_dma_ops;
                                  ^

Rename the symbol in soc-utils.c to 'snd_dummy_dma_ops' to avoid the
conflict.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27 23:15:46 +01:00
Andreas Färber 85aa0fe73e
ASoC: max98088: add OF support
MAX98088 is an older version of the MAX98089 device.

Signed-off-by: Andreas Färber <afaerber@suse.de>
[m.felsch@pengutronix.de: add CONFIG_OF compile switch]
[m.felsch@pengutronix.de: adapt commit message]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-25 10:24:44 -07:00
Matt Flax b0ef5011b9
ASoC: cs4265: Add a MIC pre. route
The cs4265 driver is missing a microphone preamp enable.
This patch enables/disables the microphone preamp when mic
selection is made using the kcontrol.

Signed-off-by: Matt Flax <flatmax@flatmax.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-25 10:18:38 -07:00
Kuninori Morimoto 15a0c64572
ASoC: add for_each_component_dais() macro
To be more readable code, this patch adds
new for_each_component_dais() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-21 10:12:44 -07:00
Kuninori Morimoto 368dee9459
ASoC: add for_each_component() macro
To be more readable code, this patch adds
new for_each_component() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-21 10:12:43 -07:00
Dmytro Prokopchuk 624d1a7cd8
ASoC: rsnd: fixup SSI clock during suspend/resume modes
Prepare <-> Cleanup functions pair has balanced calls.
But in case of suspend mode no call to rsnd_soc_dai_shutdown()
function, so cleanup isn't called. OTOH during resume mode
function rsnd_soc_dai_prepare() is called, but calling
rsnd_ssi_prepare() is skipped (rsnd_status_update() returns zero,
bacause was not cleanup before).
We need to call rsnd_ssi_prepare(), because it enables SSI clocks
by calling rsnd_ssi_master_clk_start().

This patch allows to call prepare/cleanup functions always.

Signed-off-by: Dmytro Prokopchuk <dmytro.prokopchuk@globallogic.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
[kuninori: adjusted to upstream]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-21 10:03:54 -07:00
zhong jiang c78d42c7fb
ASoC: qcom: qdsp6: remove duplicated include from q6adm.c
We include wait.h twice in q6adm.c. it is unnecessary. hence remove
it.  Further, order the include files as alphabet.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-21 09:22:10 -07:00
Kuninori Morimoto 0310820c27
ASoC: tidyup for_each_card_prelinks() dai_link
commit 7fe072b4df ("ASoC: add for_each_card_prelinks() macro")
added new for_each_card_prelinks() macro, but it had typo.
This patch fixup it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-21 09:21:03 -07:00
Oder Chiou fc795bf722
ASoC: rt5663: Remove the boost volume in the beginning of playback
The patch removes the boost volume in the beginning of playback while the
DAC volume set to lower.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:33:06 -07:00
Kuninori Morimoto 8d6258a4dd
ASoC: add for_each_dpcm_be() macro
To be more readable code, this patch adds
new for_each_dpcm_be() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:31:20 -07:00
Kuninori Morimoto d2e24d6465
ASoC: add for_each_dpcm_fe() macro
To be more readable code, this patch adds
new for_each_dpcm_fe() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:31:19 -07:00
Kuninori Morimoto 1a1035a985
ASoC: add for_each_comp_order() macro
To be more readable code, this patch adds
new for_each_comp_order() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:31:18 -07:00
Kuninori Morimoto f70f18f7d4
ASoC: add for_each_card_components() macro
To be more readable code, this patch adds
new for_each_card_components() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:22:58 -07:00
Kuninori Morimoto bcb1fd1fcd
ASoC: add for_each_card_rtds() macro
To be more readable code, this patch adds
new for_each_card_rtds() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:21:28 -07:00
Kuninori Morimoto 98061fdbfc
ASoC: add for_each_card_links() macro
To be more readable code, this patch adds
new for_each_card_links() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:20:02 -07:00
Kuninori Morimoto 7fe072b4df
ASoC: add for_each_card_prelinks() macro
To be more readable code, this patch adds
new for_each_card_prelinks() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:18:34 -07:00
Kuninori Morimoto 6d11b12879
ASoC: rename for_each_rtd_codec_dai_reverse to rollback
commit 0b7990e389 ("ASoC: add for_each_rtd_codec_dai() macro")
added for_each_rtd_codec_dai_reverse(). but _rollback() is better
naming than _reverse(). This patch rename it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:17:05 -07:00
Kuninori Morimoto 7afecb3073
ASoC: convert for_each_rtd_codec_dai() for missing part
commit 0b7990e389 ("ASoC: add for_each_rtd_codec_dai() macro")
added for_each_rtd_codec_dai(), but it didn't convert few loop
which is not using "rtd". This patch fixup it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-20 10:11:12 -07:00
Linus Walleij 65ba4dd520
ASoC: rt5677-spi: Drop unused GPIO include
This SPI driver does not use the legacy GPIO header so
just delete it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 12:49:33 -07:00
Shuming Fan 37efe23dcc
ASoC: rt5682: Minor code modification
Minor code changes are:
 - improve the readability in patch list
 - add i2c remove function
 - regmap_register_patch changes to regmap_multi_reg_write

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:38:34 -07:00
Shuming Fan 28b20dde5e
ASoC: rt5682: Fix the boost volume at the begining of playback
This patch fixed the boost volume at the begining of playback
while DAC volume set to lower level.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:30:40 -07:00
Shuming Fan afd603e4de
ASoC: rt5682: Update calibration function
The ADC/DAC path should open while calibration process.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:30:30 -07:00
Mark Brown 90fbeb0cab
Merge branch 'asoc-4.19' into asoc-4.20 for rt5682 deps. 2018-09-18 10:30:14 -07:00
Shuming Fan 3f24f37adb
ASoC: rt5682: Remove HP volume control
This patch removed Headphone Playback Volume control.
Due to codec settings, we don't want the user to change HP analog gain.
The user could use DAC1 Playback Volume control to
change playback volume.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:29:47 -07:00
Shuming Fan bf0fa00fd8
ASoC: rt5682: Improve HP performance
We change the settings while HP power-up for better performance.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:28:38 -07:00
zhong jiang 29ca7d32d7
ASoC: remove redundant include
module.h already contained moduleparam.h,  so it is safe to remove
the redundant include.

The issue is detected with the help of Coccinelle.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 10:28:29 -07:00
Oder Chiou fbb673f7c6
ASoC: rt5514-spi: Get the period_bytes in the copy work to make sure the value correctly
The value of period_bytes will get the zero before the hw_params() is not
run completely. Move the function snd_pcm_lib_period_bytes() to copy work,
and make sure that is not zero.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 10:48:40 -07:00
Kuninori Morimoto be6ac0a9ce
ASoC: soc-core: add snd_soc_is_matching_component()
To find (CPU/)Codec/Platform, we need to find component first
(= on CPU/Codec/Platform), and find DAI from it (= CPU/Codec).
These are similar operation but difficult to be simple,
and has many duplicate code to finding component.
This patch adds new snd_soc_is_matching_component(),
and reduce duplicate codes.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 10:46:08 -07:00
Kuninori Morimoto 4a9ed39477
ASoC: soc-core: manage platform name under snd_soc_init_platform()
Now "platform" is controlled by snd_soc_dai_link_component,
thus its "name" can be initialized in snd_soc_init_platform(),
instead of soc_bind_dai_link() local.
This patch do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 10:46:06 -07:00
YueHaibing 24b7a0aa1a
ASoC: qdsp6: q6asm-dai: remove duplicated include from q6asm-dai.c
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 10:32:05 -07:00
Gustavo A. R. Silva 982e386379
ASoC: hisilicon: fix fall-through annotations
Replace "fallthru" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 10:30:23 -07:00
Gustavo A. R. Silva 597d18325a
ASoC: es8328: Fix fall-through annotations
Replace "fallthru" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-17 09:55:48 -07:00
Yu Zhao 75383f8d39
sound: don't call skl_init_chip() to reset intel skl soc
Internally, skl_init_chip() calls snd_hdac_bus_init_chip() which
1) sets bus->chip_init to prevent multiple entrances before device
is stopped; 2) enables interrupt.

We shouldn't use it for the purpose of resetting device only because
1) when we really want to initialize device, we won't be able to do
so; 2) we are ready to handle interrupt yet, and kernel crashes when
interrupt comes in.

Rename azx_reset() to snd_hdac_bus_reset_link(), and use it to reset
device properly.

Fixes: 60767abcea ("ASoC: Intel: Skylake: Reset the controller in probe")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-12 11:22:09 +01:00
Yu Zhao 542cedec53
Revert "ASoC: Intel: Skylake: Acquire irq after RIRB allocation"
This reverts commit 12eeeb4f47.

The patch doesn't fix accessing memory with null pointer in
skl_interrupt().

There are two problems: 1) skl_init_chip() is called twice, before
and after dma buffer is allocate. The first call sets bus->chip_init
which prevents the second from initializing bus->corb.buf and
rirb.buf from bus->rb.area. 2) snd_hdac_bus_init_chip() enables
interrupt before snd_hdac_bus_init_cmd_io() initializing dma buffers.
There is a small window which skl_interrupt() can be called if irq
has been acquired. If so, it crashes when using null dma buffer
pointers.

Will fix the problems in the following patches. Also attaching the
crash for future reference.

[   16.949148] general protection fault: 0000 [#1] PREEMPT SMP KASAN PTI
<snipped>
[   16.950903] Call Trace:
[   16.950906]  <IRQ>
[   16.950918]  skl_interrupt+0x19e/0x2d6 [snd_soc_skl]
[   16.950926]  ? dma_supported+0xb5/0xb5 [snd_soc_skl]
[   16.950933]  __handle_irq_event_percpu+0x27a/0x6c8
[   16.950937]  ? __irq_wake_thread+0x1d1/0x1d1
[   16.950942]  ? __do_softirq+0x57a/0x69e
[   16.950944]  handle_irq_event_percpu+0x95/0x1ba
[   16.950948]  ? _raw_spin_unlock+0x65/0xdc
[   16.950951]  ? __handle_irq_event_percpu+0x6c8/0x6c8
[   16.950953]  ? _raw_spin_unlock+0x65/0xdc
[   16.950957]  ? time_cpufreq_notifier+0x483/0x483
[   16.950959]  handle_irq_event+0x89/0x123
[   16.950962]  handle_fasteoi_irq+0x16f/0x425
[   16.950965]  handle_irq+0x1fe/0x28e
[   16.950969]  do_IRQ+0x6e/0x12e
[   16.950972]  common_interrupt+0x7a/0x7a
[   16.950974]  </IRQ>
<snipped>
[   16.951031] RIP: snd_hdac_bus_update_rirb+0x19b/0x4cf [snd_hda_core] RSP: ffff88015c807c08
[   16.951036] ---[ end trace 58bf9ece1775bc92 ]---

Fixes: 2eeeb4f4733b ("ASoC: Intel: Skylake: Acquire irq after RIRB allocation")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-12 11:19:43 +01:00