Commit Graph

824767 Commits

Author SHA1 Message Date
Kuninori Morimoto
ad11e59f52
ASoC: simple-card-utils: rename asoc_simple_card_xxx() to asoc_simple_()
Current simple-card-utils is using asoc_simple_card_xxx() for each
function naming, but it is very verbose.
Thus it is easy to be over 80 char.
This patch renames it to asoc_simple_xxx().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:52:51 +00:00
Kuninori Morimoto
8f7f298a33
ASoC: simple-card-utils: separate asoc_simple_card_parse_dai()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph are using
asoc_simple_card_parse_dai() which is different implementation.
But, these are implemanted at simple-card-utils.
It should be implemanted at each files.
This patch separate these into each files.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:52:37 +00:00
Kuninori Morimoto
65a5056b21
ASoC: simple-card-utils: share asoc_simple_card_init_priv()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph are initializing each priv,
but it is same operation.
This patch adds new asoc_simple_card_init_priv() and initialize
priv by same operation.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:52:24 +00:00
Kuninori Morimoto
629f75440a
ASoC: simple-card-utils: share asoc_simple_be_hw_params_fixup()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_be_hw_params_fixup() between in these
2 drivers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:52:11 +00:00
Kuninori Morimoto
ad934ca801
ASoC: simple-card-utils: share asoc_simple_dai_init()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_dai_init() between in these 2 drivers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:51:57 +00:00
Kuninori Morimoto
f48dcbb6d4
ASoC: simple-card-utils: share asoc_simple_hw_param()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_hw_param() between in these 2 drivers.

One note is that only simple-card supports simple_set_clk_rate()
at hw_param from commit e9be4ffd4f ("ASoC: simple-card: set cpu
dai clk in hw_params").
By this patch, audio-graph has same feature.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:51:43 +00:00
Kuninori Morimoto
686911b46f
ASoC: simple-card-utils: share asoc_simple_shutdown()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_shutdown() between in these 2 drivers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:51:30 +00:00
Kuninori Morimoto
f38df5bf0c
ASoC: simple-card-utils: share asoc_simple_startup()
The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph have almost same functions.
This patch shares asoc_simple_startup() between in these 2 drivers.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:51:16 +00:00
Kuninori Morimoto
e59289cda8
ASoC: simple_card_utils: share common priv for simple-card/audio-graph
Historically, simple-card/simple-scu-card/audio-graph/audio-graph-scu
are similar but different generic sound card.
simple-scu-card which was for DPCM was merged into simple-card, and
audio-graph-scu which was for DPCM was merged into audio-graph.
simple-card is for non OF graph sound card, and
audio-graph is for     OF graph sound card.
And, small detail difference (= function parameter, naming, etc)
between simple-card/audio-graph has been unified.

So today, the difference between simple-card/audio-graph are
just using OF graph style, or not.
In other words, there should no difference other than OF graph sytle.
simple-card/audio-graph are using own priv today , but we can merge it.
This patch merge it at simple_card_utils.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:51:03 +00:00
Kuninori Morimoto
0580dde594
ASoC: simple-card-utils: add asoc_simple_debug_info()
Current simple-card-utils has dev_dbg(), but people want to
add #define DEBUG at simple-card/audio-graph, not simple-card-utils.
And, people want to get all information.
This patch adds new asoc_simple_debug_info() to indicates information.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:50:50 +00:00
Adam Thomson
883149027a
ASoC: AMD: Update DA7219 DAI clock name to align with codec updates
As the DAI clocks for DA7219 have now been split into BCLK and WCLK,
the clock lookup name needs to be udpated here to select BCLK to
achieve the same functionality as before with regards to DAI clock
gating.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:50:30 +00:00
Adam Thomson
d90ba6c8b5
ASoC: da7219: Expose BCLK and WCLK control through CCF
For the purposes of platforms which use the codec as DAI clock
master for the CPU and other codec devices, there is the need to
not only expose the clock gating of BCLK and WCLK but also the
ability to set those rates without going through the ASoC APIs.

To make this possible, the previous CCF implementation in the
driver has been extended to separate BCLK and WCLK out. WCLK is
the parent clock to BCLK, and is also the clock gate for both.
BCLK in HW is a factor/multiplier of WCLK so derives from whatever
SR is chosen for WCLK, hence the need to make it a child of WCLK
for the purposes of CCF. Enabling/disabling either BCLK or WCLK
will result in clocks being ungated/gated accordingly. To simplify
matters, these clocks can only be configured if the codec is set
as master, otherwise CCF control is disallowed.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:50:17 +00:00
Adam Thomson
41d176d3ec
ASoC: da7219: Update DAI clock binding info to cover WCLK/BCLK
With the need to expose WCLK and BCLK as separate clocks, the
'clock-cells' and 'clock-output-names' descriptions need to be
updated as now the codec is providing 2 clocks. The example is
also updated accordingly.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-21 14:50:08 +00:00
Olivier Moysan
d151cf89a4
ASoC: stm32: dfsdm: add mmap support
Enable direct access (mmap) support.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20 17:17:05 +00:00
Charles Keepax
cd53787372
ASoC: wm_adsp: Correct some minor issues
The wm_adsp_ops structures should be static and correct two printf
specifiers.

Fixes: 170b1e123f ("ASoC: wm_adsp: Add support for new Halo core DSPs")
Fixes: 4e08d50d1f ("ASoC: wm_adsp: Factor out DSP specific operations")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20 17:12:35 +00:00
Sylwester Nawrocki
f29eec793d
ASoC: samsung: i2s: Don't use register read to determine slave/master mode
We can simplify the code by caching the CPU DAI master/slave
information rather than reading previously set register bit.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20 17:10:45 +00:00
Annaliese McDermond
bf31cbfbe2
ASoC: tlv320aic32x4: Break out clock setting into separate function
Break the clock setting logic out from the main hw_params.  It's
rather large and unweildy and makes for a large function.  This
also better enables some of the following changes to the clock
tree access in the driver.

Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20 17:10:31 +00:00
Paul Cercueil
0f91d24f2c
ASoC: jz4740: Depend on MIPS instead of MACH_JZ4740
Depending on MACH_JZ4740 prevent us from creating a generic kernel that
works on more than one MIPS board. Instead, we just depend on MIPS being
set.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20 17:05:40 +00:00
Stuart Henderson
8bc144f90b
ASoC: wm_adsp: Add WDT expiry IRQ handling support for Halo core
Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 13:00:40 +00:00
Richard Fitzgerald
2ae581380e
ASoC: wm_adsp: Add HALO MPU fault logging
A Halo Core DSP has a memory protection unit that can trap and signal
memory access faults. This patch adds a function that dumps the fault
information.

The interrupt reaches the host via the parent codec interrupt controller
so this fault function is exported to be called by the codec driver.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 13:00:25 +00:00
Wen Shi
170b1e123f
ASoC: wm_adsp: Add support for new Halo core DSPs
The Halo core is a new generation of audio DSP architecture from
Cirrus Logic. A new iteration of the WMFW file format (v3) is also
added, for this new architecture. Currently this format is not
supported on the old ADSP2 architecture however support may be
added for it in the future.

Signed-off-by: Wen Shi <wenshi@opensource.cirrus.com>
Signed-off-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 13:00:11 +00:00
Pi-Hsun Shih
c683964153
ASoC: mediatek: Reduce repititive code on mtk_regmap_update_bits.
Change the signature of mtk_regmap_update_bits to also take a shift, and
warn when reg >= 0 but shift < 0. This reduce the code repetition
on the calling side, and prevent future UBSAN warning when some of the
xxx_shift and xxx_reg are both set to -1.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:51:20 +00:00
Pi-Hsun Shih
ed1666f686
ASoC: mediatek: Fix UBSAN warning.
In sound/soc/mediatek/common/mtk-afe-fe-dai.c, when xxx_reg is -1, it's
a no-op to call mtk_regmap_update_bits, but since both xxx_reg and
xxx_shift are set to -1, the (1 << xxx_shift) in the argument would
trigger a UBSAN warning.

Fix the warning by setting those xxx_shift to 0 instead.

Note that since the code explicitly checks .mono_shift >= 0 and
.fs_shift >= 0 before using them in '<<' operator, those two members are
not set to 0.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:51:13 +00:00
Charles Keepax
4e08d50d1f
ASoC: wm_adsp: Factor out DSP specific operations
In preparation for the addition of more types of DSP core refactor the
handling of DSP specific operations such as starting the memory or
enabling the core into a set of callbacks. This should make it easier to
add new core types and allow for more code reuse between them.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:40:38 +00:00
Charles Keepax
a5dcb24d70
ASoC: wm_adsp: Factor out parsing of firmware ID header
There is no need to duplicate this code for both ADSP1 and 2 as the
handling is exactly the same.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:40:25 +00:00
Charles Keepax
4049ce86fc
ASoC: wm_adsp: Refactor firmware status reading
In preparation for further additions refactor the reading of the
firmware status.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:40:11 +00:00
Richard Fitzgerald
b9070df451
ASoC: wm_adsp: Move wm_adsp2_set_dspclk to CODEC drivers
The original wm_adsp2_early_event took an additional frequency
argument for clocking control so could not be used directly as a
DAPM callback. But this setup could equally be done by the codec
driver function wrapping wm_adsp2_early event. In preparation
for adding support for new core types wm_adsp2_set_dspclk has
been exported, and the freq argument removed so that it can
be used directly as a DAPM callback.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:39:57 +00:00
Charles Keepax
2b0ee49f12
ASoC: wm_adsp: Don't export wm_adsp2_lock
This function is not presently called from outside the adsp code and nor
should it be, as such stop exporting it.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:39:43 +00:00
Mark Brown
c77526851d
Merge branch 'asoc-5.1' into asoc-5.2 for wmadsp 2019-03-19 12:37:11 +00:00
Charles Keepax
a2bcbc1b9a
ASoC: wm_adsp: Shutdown any compressed streams on DSP watchdog timeout
If a watchdog timeout is received from the DSP it is safe to assume the
DSP is not functioning anymore and as such any active compressed streams
should be put into an error state.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:36:17 +00:00
Charles Keepax
a2225a6d15
ASoC: wm_adsp: Add locking to wm_adsp2_bus_error
Best to lock across handling the bus error to ensure the DSP doesn't
change power state as we are reading the status registers.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:36:04 +00:00
Charles Keepax
48ead31ce2
ASoC: wm_adsp: Correct error messages in wm_adsp_buffer_get_error
During recent logging improvements it seems two error messages lost
their updates during patch application/rebasing. Add these back in.

Fixes: 0d3fba3e7a ("ASoC: wm_adsp: Improve logging messages")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:35:50 +00:00
Charles Keepax
639e5eb3c7
ASoC: wm_adsp: Correct handling of compressed streams that restart
Previously support was added to allow streams to be stopped and
started again without the DSP being power cycled and this was done
by clearing the buffer state in trigger start. Another supported
use-case is using the DSP for a trigger event then opening the
compressed stream later to receive the audio, unfortunately clearing
the buffer state in trigger start destroys the data received
from such a trigger. Correct this issue by moving the call to
wm_adsp_buffer_clear to be in trigger stop instead.

Fixes: 61fc060c40 ("ASoC: wm_adsp: Support streams which can start/stop with DSP active")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 12:35:36 +00:00
Bard liao
b3718b8f7e
ASoC: topology: free link string in error
Some strings are allocated by kstrdup, but not freed when error
happened.

Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 11:56:40 +00:00
Bard liao
7b6f68a4df
ASoC: topology: free stream_name of dai_drv
The stream_name is allocated by kstrdup. We have to free it when the
dai is removed or return from error.

Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19 11:50:06 +00:00
Mark Brown
3863293a96
Merge branch 'for-5.1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.2 2019-03-18 14:57:27 +00:00
Kuninori Morimoto
4346a745df
ASoC: audio-graph: add graph_parse_mclk_fs()
It is parsing mclk_fs at many places, but it should be
same operation. This patch adds graph_parse_mclk_fs()
and parse it.

This patch also renames similar function graph_get_conversion()
to graph_parse_convert().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:45:13 +00:00
Kuninori Morimoto
d2bf008ad1
ASoC: audio-graph: rename graph_get_conversion() to graph_parse_convert()
use same naming rule, and this patch add missing of_node_put() on it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:45:00 +00:00
Kuninori Morimoto
d708d35ef0
ASoC: simple-card: add simple_parse_mclk_fs()
It is parsing mclk_fs at many places, but it should be
same operation. This patch adds simple_parse_mclk_fs()
and parse it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:44:47 +00:00
Kuninori Morimoto
cdc444721b
ASoC: simple-card: rename simple_get_conversion() to simple_parse_convert()
use same naming rule

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:44:34 +00:00
Shuming Fan
1c5b6a27e4
ASoC: rt5682: recording has no sound after booting
If ASRC turns on, HW will use clk_dac as the reference clock
whether recording or playback.
Both of clk_dac and clk_adc should set proper clock while using ASRC.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:44:00 +00:00
Shuming Fan
675212bfb2
ASoC: rt5682: fix jack type detection issue
The jack type detection needs the main bias power of analog.
The modification makes sure the main bias power on/off while jack plug/unplug.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:43:46 +00:00
Shuming Fan
4834d7070c
ASoC: rt5682: Check JD status when system resume
The IRQ function may not work when system suspend.
We remove snd_soc_dapm_force_enable_pin function call to
make sure the bias off when idle and run into suspend/resume function.

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:43:33 +00:00
Tzung-Bi Shih
9729e3b65a
ASoC: mediatek: mt8183: skip for i2s5 in mck_disable
Skip for i2s5 in mck_disable which is also bypassed in mck_enable.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 14:43:24 +00:00
Hans de Goede
a0cb2d4357
ASoC: Intel: bytcr_rt5651: Add BYT_RT5651_JD_NOT_INV quirk
Add BYT_RT5651_JD_NOT_INV quirk for devices with an inverted
(active-high instead of the normal active-low) jack-detect switch.

And add a quirk for the Complet Electro Serv MY8307 tablet which has
an inverted jack-detect switch (and a mono-speaker).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 12:08:16 +00:00
Hans de Goede
8a68a509ae
ASoC: rt5651: Add support for active-high jack detect
Some boards use a jack-receptacle with a switch which reports the
jack-inserted status as active-high, rather then the standard active-low
reporting most jacks use.

This commit adds support for it. This is activated by a boolean
"realtek,jack-detect-not-inverted" device-property. The not-inverted
in the device-property name, rather then active-high, was chosen to keep
the device-property naming consistent with the rt5640 codec driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 12:08:02 +00:00
Olivier Moysan
f68c2a682d
ASoC: stm32: spdifrx: add power management
Add suspend and resume sleep callbacks to STM32 SPDIFRX driver,
to support system low power modes.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 12:07:49 +00:00
KaiChieh Chuang
bbfaa7d36c
ASoC: dpcm: prevent snd_soc_dpcm use after free
The dpcm get from fe_clients/be_clients
may be free before use

Add a spin lock at snd_soc_card level,
to protect the dpcm instance.
The lock may be used in atomic context, so use spin lock.

possible race condition between
void dpcm_be_disconnect(
	...
	list_del(&dpcm->list_be);
	list_del(&dpcm->list_fe);
	kfree(dpcm);
	...

and
	for_each_dpcm_fe()
	for_each_dpcm_be*()

race condition example
Thread 1:
    snd_soc_dapm_mixer_update_power()
        -> soc_dpcm_runtime_update()
            -> dpcm_be_disconnect()
                -> kfree(dpcm);
Thread 2:
    dpcm_fe_dai_trigger()
        -> dpcm_be_dai_trigger()
            -> snd_soc_dpcm_can_be_free_stop()
                -> if (dpcm->fe == fe)

Excpetion Scenario:
	two FE link to same BE
	FE1 -> BE
	FE2 ->

	Thread 1: switch of mixer between FE2 -> BE
	Thread 2: pcm_stop FE1

Exception:

Unable to handle kernel paging request at virtual address dead0000000000e0

pc=<> [<ffffff8960e2cd10>] dpcm_be_dai_trigger+0x29c/0x47c
	sound/soc/soc-pcm.c:3226
		if (dpcm->fe == fe)
lr=<> [<ffffff8960e2f694>] dpcm_fe_dai_do_trigger+0x94/0x26c

Backtrace:
[<ffffff89602dba80>] notify_die+0x68/0xb8
[<ffffff896028c7dc>] die+0x118/0x2a8
[<ffffff89602a2f84>] __do_kernel_fault+0x13c/0x14c
[<ffffff89602a27f4>] do_translation_fault+0x64/0xa0
[<ffffff8960280cf8>] do_mem_abort+0x4c/0xd0
[<ffffff8960282ad0>] el1_da+0x24/0x40
[<ffffff8960e2cd10>] dpcm_be_dai_trigger+0x29c/0x47c
[<ffffff8960e2f694>] dpcm_fe_dai_do_trigger+0x94/0x26c
[<ffffff8960e2edec>] dpcm_fe_dai_trigger+0x3c/0x44
[<ffffff8960de5588>] snd_pcm_do_stop+0x50/0x5c
[<ffffff8960dded24>] snd_pcm_action+0xb4/0x13c
[<ffffff8960ddfdb4>] snd_pcm_drop+0xa0/0x128
[<ffffff8960de69bc>] snd_pcm_common_ioctl+0x9d8/0x30f0
[<ffffff8960de1cac>] snd_pcm_ioctl_compat+0x29c/0x2f14
[<ffffff89604c9d60>] compat_SyS_ioctl+0x128/0x244
[<ffffff8960283740>] el0_svc_naked+0x34/0x38
[<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 11:19:00 +00:00
Mylène Josserand
2944d29d7c
ASoC: simple-amplifier: Make gpio property optional
Some amplifier may not have a GPIO to control the power, but instead simply
rely on the regulator to power up and down the amplifier.

In order to support those setups, let's make the GPIO optional.

Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 11:18:47 +00:00
Kuninori Morimoto
c4bce31c49
ASoC: rsnd: explain extended Audio DMAC peri peri address
If SoC has extended Audio DMAC peri peri address,
DT needs to select it.
Otherwise, it can select normal Audio DMAC peri peri address.
Extended Audio DMAC peri peri address can use BUSIF4-7,
normal address can't.

Reported-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18 11:18:39 +00:00