ASoC: soc-compress: Fix deadlock in soc_compr_open_fe

Modify the error handling flow by release lock.
The require mutex will keep holding if open fail.

Fixes: aa9ff6a4955f ("ASoC: soc-compress: Rep

ASoC: soc-compress: Fix deadlock in soc_compr_open_fe

Modify the error handling flow by release lock.
The require mutex will keep holding if open fail.

Fixes: aa9ff6a4955f ("ASoC: soc-compress: Reposition and add pcm_mutex")
Signed-off-by: yixuanjiang <yixuanjiang@google.com>
Link: https://lore.kernel.org/r/20230619033127.2522477-1-yixuanjiang@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: do not include pm_runtime.h if not used

Do not include pm_runtime.h header in files where APIs exported by
pm_runtime.h are not used.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.c

ASoC: do not include pm_runtime.h if not used

Do not include pm_runtime.h header in files where APIs exported by
pm_runtime.h are not used.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> # for omap-mcbsp-st.c
Link: https://lore.kernel.org/r/20230517094903.2895238-2-claudiu.beznea@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: add snd_soc_card_mutex_lock/unlock()

ASoC need to use card->mutex with _INIT or _RUNTIME,
but there is no helper function for it.

This patch adds its helper function and use it.

Because peop

ASoC: add snd_soc_card_mutex_lock/unlock()

ASoC need to use card->mutex with _INIT or _RUNTIME,
but there is no helper function for it.

This patch adds its helper function and use it.

Because people might misunderstand that _init() is mutex initialization,
this patch renames _INIT to _ROOT and adds new
snd_soc_card_mutex_lock_root() for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a5zlx3tw.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: expand snd_soc_dpcm_mutex_lock/unlock()

soc-pcm.c has snd_soc_dpcm_mutex_lock/unlock(),
but other files can't use it because it is static function.

It requests snd_soc_pcm_runtime as paramete

ASoC: expand snd_soc_dpcm_mutex_lock/unlock()

soc-pcm.c has snd_soc_dpcm_mutex_lock/unlock(),
but other files can't use it because it is static function.

It requests snd_soc_pcm_runtime as parameter (A), but sometimes we
want to use it by snd_soc_card (B).

(A) static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd)
{
mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
} ^^^^^^^^^

(B) mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass);
^^^^

We want to use it with both "rtd" and "card" for dapm lock/unlock.
To enable it, this patch uses _Generic macro.

This patch makes snd_soc_dpcm_mutex_{un}lock() global function, and use it on
each files.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bkk1x3ud.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress: Inherit atomicity from DAI link for Compress FE

After commit bbf7d3b1c4f40 ("ASoC: soc-pcm: align BE 'atomicity' with
that of the FE") BE and FE atomicity must match.

In the cas

ASoC: soc-compress: Inherit atomicity from DAI link for Compress FE

After commit bbf7d3b1c4f40 ("ASoC: soc-pcm: align BE 'atomicity' with
that of the FE") BE and FE atomicity must match.

In the case of Compress PCM there is a mismatch in atomicity between FE
and BE and we get errors like this:

[ 36.434566] sai1-wm8960-hifi: dpcm_be_connect: FE is atomic but BE
is nonatomic, invalid configuration
[ 36.444278] PCM Deep Buffer: ASoC: can't connect SAI1.OUT

In order to fix this we must inherit the atomicity from DAI link
associated with current PCM Compress FE.

Fixes: bbf7d3b1c4f4 ("ASoC: soc-pcm: align BE 'atomicity' with that of the FE")
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230324124019.30826-1-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-pcm.c: remove indirect runtime copy

substream->runtime will be attached when substream was opened
at snd_pcm_attach_substream(). When it uses DPCM,
FE substream->runtime is attached, but B

ASoC: soc-pcm.c: remove indirect runtime copy

substream->runtime will be attached when substream was opened
at snd_pcm_attach_substream(). When it uses DPCM,
FE substream->runtime is attached, but BE substream->runtime is not.
Thus, we are copying FE substream->runtime to BE.

But, we are copyig FE substream->runtime to FE dpcm->runtime first (A),
and copy it to BE dpcm->runtime (B), and copy it to
BE substream->runtime (C).

static int dpcm_fe_dai_open(...) {
...
(A) fe->dpcm[stream].runtime = fe_substream->runtime;
...
}

static int dpcm_be_connect(...) {
...
(B) be->dpcm[stream].runtime = fe->dpcm[stream].runtime;
...
}

int dpcm_be_dai_startup(...) {
...
(C) be_substream->runtime = be->dpcm[stream].runtime;
...
}

It is too roundabout and troublesome.
OTOH, it is directly copying fe_substream->runtime at dpcm_be_reparent()
without using be->dpcm[stream].runtime.

static void dpcm_be_reparent(...)
{
...
for_each_dpcm_fe(be, stream, dpcm) {
...
=> be_substream->runtime = fe_substream->runtime;
break;
}
}

This patch removes indirect copying.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v8je64dh.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress.c: fixup private_data on snd_soc_new_compress()

commit d3268a40d4b19f ("ASoC: soc-compress.c: fix NULL dereference")
enables DPCM capture, but it should independent from playback.

ASoC: soc-compress.c: fixup private_data on snd_soc_new_compress()

commit d3268a40d4b19f ("ASoC: soc-compress.c: fix NULL dereference")
enables DPCM capture, but it should independent from playback.
This patch fixup it.

Fixes: d3268a40d4b1 ("ASoC: soc-compress.c: fix NULL dereference")
Link: https://lore.kernel.org/r/87tu0i6j7j.wl-kuninori.morimoto.gx@renesas.com
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/871qnkvo1s.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress: Reposition and add pcm_mutex

If panic_on_warn is set and compress stream(DPCM) is started,
then kernel panic occurred because card->pcm_mutex isn't held appropriately.
In the fol

ASoC: soc-compress: Reposition and add pcm_mutex

If panic_on_warn is set and compress stream(DPCM) is started,
then kernel panic occurred because card->pcm_mutex isn't held appropriately.
In the following functions, warning were issued at this line
"snd_soc_dpcm_mutex_assert_held".

static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
struct snd_soc_pcm_runtime *be, int stream)
{
...
snd_soc_dpcm_mutex_assert_held(fe);
...
}

void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream)
{
...
snd_soc_dpcm_mutex_assert_held(fe);
...
}

void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,
int stream, int action)
{
...
snd_soc_dpcm_mutex_assert_held(rtd);
...
}

int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
int event)
{
...
snd_soc_dpcm_mutex_assert_held(fe);
...
}

These functions are called by soc_compr_set_params_fe, soc_compr_open_fe
and soc_compr_free_fe
without pcm_mutex locking. And this is call stack.

[ 414.527841][ T2179] pc : dpcm_process_paths+0x5a4/0x750
[ 414.527848][ T2179] lr : dpcm_process_paths+0x37c/0x750
[ 414.527945][ T2179] Call trace:
[ 414.527949][ T2179] dpcm_process_paths+0x5a4/0x750
[ 414.527955][ T2179] soc_compr_open_fe+0xb0/0x2cc
[ 414.527972][ T2179] snd_compr_open+0x180/0x248
[ 414.527981][ T2179] snd_open+0x15c/0x194
[ 414.528003][ T2179] chrdev_open+0x1b0/0x220
[ 414.528023][ T2179] do_dentry_open+0x30c/0x594
[ 414.528045][ T2179] vfs_open+0x34/0x44
[ 414.528053][ T2179] path_openat+0x914/0xb08
[ 414.528062][ T2179] do_filp_open+0xc0/0x170
[ 414.528068][ T2179] do_sys_openat2+0x94/0x18c
[ 414.528076][ T2179] __arm64_sys_openat+0x78/0xa4
[ 414.528084][ T2179] invoke_syscall+0x48/0x10c
[ 414.528094][ T2179] el0_svc_common+0xbc/0x104
[ 414.528099][ T2179] do_el0_svc+0x34/0xd8
[ 414.528103][ T2179] el0_svc+0x34/0xc4
[ 414.528125][ T2179] el0t_64_sync_handler+0x8c/0xfc
[ 414.528133][ T2179] el0t_64_sync+0x1a0/0x1a4
[ 414.528142][ T2179] Kernel panic - not syncing: panic_on_warn set ...

So, I reposition and add pcm_mutex to resolve lockdep error.

Signed-off-by: Shinhyung Kang <s47.kang@samsung.com>
Link: https://lore.kernel.org/r/016401d90ac4$7b6848c0$7238da40$@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc.h: remove num_cpus/codecs

Current rtd has both dai_link pointer (A) and num_cpus/codecs (B).

(A) rtd->dai_link = dai_link;
(B) rtd->num_cpus = dai_link->num_cpus;
(B) rtd->num_codecs = da

ASoC: soc.h: remove num_cpus/codecs

Current rtd has both dai_link pointer (A) and num_cpus/codecs (B).

(A) rtd->dai_link = dai_link;
(B) rtd->num_cpus = dai_link->num_cpus;
(B) rtd->num_codecs = dai_link->num_codecs;

But, we can get num_cpus/codecs (B) via dai_link (A).
This means we don't need to keep num_cpus/codecs on rtd.
This patch removes these.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sfkmv9n3.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress: Change the check for codec_dai

It should be better to reverse the check on codec_dai
and returned early in order to be easier to understand.

Fixes: de2c6f98817f ("ASoC: soc-comp

ASoC: soc-compress: Change the check for codec_dai

It should be better to reverse the check on codec_dai
and returned early in order to be easier to understand.

Fixes: de2c6f98817f ("ASoC: soc-compress: prevent the potentially use of null pointer")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220310030041.1556323-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress: prevent the potentially use of null pointer

There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_s

ASoC: soc-compress: prevent the potentially use of null pointer

There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_soc_new_compress().
In the trace the 'codec_dai' transfers from card->dai_link,
and we can see from the snd_soc_add_pcm_runtime() in
snd_soc_bind_card() that, if value of card->dai_link->num_codecs
is 0, then 'codec_dai' could be null pointer caused
by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'.
And snd_soc_register_card() is called by various platforms.
Therefore, it is better to add the check in the case of misusing.
And because 'cpu_dai' has already checked in soc_init_pcm_runtime(),
there is no need to check again.
Adding the check as follow, then if 'codec_dai' is null,
snd_soc_new_compress() will not pass through the check
'if (playback + capture != 1)', avoiding the leftover use of
'codec_dai'.

Fixes: 467fece ("ASoC: soc-dai: move snd_soc_dai_stream_valid() to soc-dai.c")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/1634285633-529368-1-git-send-email-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: compress/component: Use module_get_when_open/put_when_close for cstream

Currently the try_module_get() and module_put() is not possible for
compressed streams if the module_get_upon_open is se

ASoC: compress/component: Use module_get_when_open/put_when_close for cstream

Currently the try_module_get() and module_put() is not possible for
compressed streams if the module_get_upon_open is set to 1 which means that\
the components are not protected in a same way as components when normal
audio is used.

SOF is setting module_get_upon_open to 1 for component drivers which works
correctly for audio stream but when compressed stream is used then the
module is not protected.

Convert the compress open and free operation to mimic the steps of it's
pcm counterpart to fix this issue.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210901095255.3617-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-compress: Change the check for codec_dai

commit ccb4214f7f2a8b75acf493f31128e464ee1a3536 upstream.

It should be better to reverse the check on codec_dai
and returned early in order to be

ASoC: soc-compress: Change the check for codec_dai

commit ccb4214f7f2a8b75acf493f31128e464ee1a3536 upstream.

It should be better to reverse the check on codec_dai
and returned early in order to be easier to understand.

Fixes: de2c6f98817f ("ASoC: soc-compress: prevent the potentially use of null pointer")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220310030041.1556323-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

ASoC: soc-compress: prevent the potentially use of null pointer

[ Upstream commit de2c6f98817fa5decb9b7d3b3a8a3ab864c10588 ]

There is one call trace that snd_soc_register_card()
->snd_soc_bind_card

ASoC: soc-compress: prevent the potentially use of null pointer

[ Upstream commit de2c6f98817fa5decb9b7d3b3a8a3ab864c10588 ]

There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_soc_new_compress().
In the trace the 'codec_dai' transfers from card->dai_link,
and we can see from the snd_soc_add_pcm_runtime() in
snd_soc_bind_card() that, if value of card->dai_link->num_codecs
is 0, then 'codec_dai' could be null pointer caused
by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'.
And snd_soc_register_card() is called by various platforms.
Therefore, it is better to add the check in the case of misusing.
And because 'cpu_dai' has already checked in soc_init_pcm_runtime(),
there is no need to check again.
Adding the check as follow, then if 'codec_dai' is null,
snd_soc_new_compress() will not pass through the check
'if (playback + capture != 1)', avoiding the leftover use of
'codec_dai'.

Fixes: 467fece ("ASoC: soc-dai: move snd_soc_dai_stream_valid() to soc-dai.c")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/1634285633-529368-1-git-send-email-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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ALSA: compress: Initialize mutex in snd_compress_new()

Currently the snd_compr.lock mutex isn't initialized in the API
functions although the lock is used many places in other code in
compress offlo

ALSA: compress: Initialize mutex in snd_compress_new()

Currently the snd_compr.lock mutex isn't initialized in the API
functions although the lock is used many places in other code in
compress offload API. It's because the object was expected to be
initialized via snd_compress_register(), but this was never used by
ASoC, which is the only user. Instead, ASoC initializes the mutex by
itself, and this is error-prone.

This patch moves the mutex initialization into the more appropriate
place, snd_compress_new(), for avoiding the missing init.

Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210714162424.4412-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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ASoC: soc-compress: lock pcm_mutex to resolve lockdep error

If panic_on_warn=1 is added in bootargs and compress offload playback with
DPCM is started, kernel panic would be occurred because rtd->ca

ASoC: soc-compress: lock pcm_mutex to resolve lockdep error

If panic_on_warn=1 is added in bootargs and compress offload playback with
DPCM is started, kernel panic would be occurred because rtd->card->pcm_mutex
isn't held in soc_compr_open_fe() and soc_compr_free_fe() and it generates
lockdep warning in the following code.

void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,
int stream, int action)
{
struct snd_soc_dai *dai;
int i;

lockdep_assert_held(&rtd->card->pcm_mutex);

To prevent lockdep warning but minimize side effect by adding mutex,
pcm_mutex is held just before snd_soc_runtime_activate() and
snd_soc_runtime_deactivate() and is released right after them.

Signed-off-by: Gyeongtaek Lee <gt82.lee@samsung.com>
Link: https://lore.kernel.org/r/1891546521.01617772502282.JavaMail.epsvc@epcpadp3
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-pcm: don't indicate error message for dpcm_be_dai_hw_free()

dpcm_be_dai_hw_free() never fail, error message is not needed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.c

ASoC: soc-pcm: don't indicate error message for dpcm_be_dai_hw_free()

dpcm_be_dai_hw_free() never fail, error message is not needed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87blblutaf.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-pcm: indicate error message at dpcm_path_get()

Indicating error message when failed case is very useful for debuging.
In many case, its style is like below.

int function(...)
{
...

ASoC: soc-pcm: indicate error message at dpcm_path_get()

Indicating error message when failed case is very useful for debuging.
In many case, its style is like below.

int function(...)
{
...
return ret;
}

int caller(...)
{
...
ret = function(...);
if (ret < 0)
dev_err(...)
...
}

This is not so bad, but in this style *each caller* needs to indicate
duplicate same error message, and some caller is forgetting to do it.
And caller can't indicate detail function() error information.

If function() indicates error message, we can get same and
detail information without forgot.

int function(...)
{
...
if (ret < 0)
dev_err(...)

return ret;
}

int caller(...)
{
...
ret = function(...);
...
}

Now, many place uses dpcm_path_get() like below

ret = dpcm_path_get(...);
if (ret < 0)
goto error;
(A) else if (ret == 0)
dev_dbg(...)

But here, (A) part can be indicated at dpcm_path_get() not caller.
It is simple and readable code.

This patch do it.
Small detail behaviors will be exchanged by this patch.

1) indicates debug info (= path numbers) if path > 0 case only
(It was *always* indicated).
2) soc_dpcm_fe_runtime_update() is indicating error message
for paths < 0 case, but it is already done at dpcm_path_get().
Thus just remove it. but dev_dbg() vs dev_warn() is exchanged.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87mtv5utbj.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-pcm: share DPCM BE DAI stop operation

soc-pcm has very similar but different DPCM BE DAI stop operation at
1) dpcm_be_dai_startup() error case rollback
2) dpcm_be_dai_startup_unwind()
3

ASoC: soc-pcm: share DPCM BE DAI stop operation

soc-pcm has very similar but different DPCM BE DAI stop operation at
1) dpcm_be_dai_startup() error case rollback
2) dpcm_be_dai_startup_unwind()
3) dpcm_be_dai_shutdown()

The differences are
1) for rollback
2) Doesn't check by snd_soc_dpcm_be_can_update() (Is this bug ?)
3) Do soc_pcm_hw_free() if it was not !OPENed and !HW_FREEed,
and call soc_pcm_close().

We can share same code by
1) hw_free is not needed. Needs last dpcm as rollback.
2) hw_free is not needed.
3) hw_free is needed.

This patch adds new dpcm_be_dai_stop() and share these 3.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6rduoam.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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ASoC: soc-compress: add soc_compr_clean() and call it from soc_compr_open/free()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_op

ASoC: soc-compress: add soc_compr_clean() and call it from soc_compr_open/free()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{
...
if (ret < 0)
goto xxx_err;
...
return 0;

^ machine_err:
| ...
| out:
(A) ...
| pm_err:
| ...
v return ret;
}

The difference is
soc_compr_free() is for all dai/component/substream,
rollback is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.

Now, soc_compr_open/free() are handling
1) snd_soc_dai_compr_startup/shutdown()
2) snd_soc_component_compr_open/free()
3) snd_soc_link_compr_startup/shutdown()

Now, 1) to 3) are handled.
This patch adds new soc_compr_clean() and call it from
soc_compr_open() as rollback, and from soc_compr_free_free() as
normal close handler.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87ima25iwa.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-component: add mark for snd_soc_link_compr_startup/shutdown()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)

ASoC: soc-component: add mark for snd_soc_link_compr_startup/shutdown()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{
...
if (ret < 0)
goto xxx_err;
...
return 0;

^ machine_err:
| ...
| out:
(A) ...
| pm_err:
| ...
v return ret;
}

The difference is
soc_compr_free() is for all dai/component/substream,
rollback is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.
1) snd_soc_dai_compr_startup/shutdown()
2) snd_soc_component_compr_open/free()
=> 3) snd_soc_link_compr_startup/shutdown()

This patch is for 3) snd_soc_link_compr_startup/shutdown()
and adds new cstream mark.
It will mark cstream when startup() was suceeded.
If rollback happen *after* that, it will check rollback flag
and marked cstream.

It cares *previous* startup() only now,
but we might want to check *whole* marked cstream in the future.
This patch is using macro so that it can be easily adjust to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0ui5iwf.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-component: add mark for snd_soc_component_compr_open/free()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{

ASoC: soc-component: add mark for snd_soc_component_compr_open/free()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{
...
if (ret < 0)
goto xxx_err;
...
return 0;

^ machine_err:
| ...
| out:
(A) ...
| pm_err:
| ...
v return ret;
}

The difference is
soc_compr_free() is for all dai/component/substream,
rollback is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.
1) snd_soc_dai_compr_startup/shutdown()
=> 2) snd_soc_component_compr_open/free()
3) snd_soc_link_compr_startup/shutdown()

This patch is for 2) snd_soc_component_compr_open/free(),
and adds new cstream mark.
It will mark cstream when startup() was suceeded.
If rollback happen *after* that, it will check rollback flag
and marked cstream.

It cares *previous* startup() only now,
but we might want to check *whole* marked cstream in the future.
This patch is using macro so that it can be easily adjust to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfey5iwk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-dai: add mark for snd_soc_dai_compr_startup/shutdown()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{
...

ASoC: soc-dai: add mark for snd_soc_dai_compr_startup/shutdown()

soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

static int soc_compr_open(xxx)
{
...
if (ret < 0)
goto xxx_err;
...
return 0;

^ machine_err:
| ...
| out:
(A) ...
| pm_err:
| ...
v return ret;
}

The difference is
soc_compr_free() is for all dai/component/substream,
rollback is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.
=> 1) snd_soc_dai_compr_startup/shutdown()
2) snd_soc_component_compr_open/free()
3) snd_soc_link_compr_startup/shutdown()

This patch is for 1) snd_soc_dai_compr_startup/shutdown(),
and adds new cstream mark.
It will mark cstream when startup() was suceeded.
If rollback happen *after* that, it will check rollback flag
and marked cstream.

It cares *previous* startup() only now,
but we might want to check *whole* marked cstream in the future.
This patch is using macro so that it can be easily adjust to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87mtze5iwp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-compress: move soc_compr_free() next to soc_compr_open()

This patch moves soc_compr_free() next to soc_compr_open().
This is prepare for soc_compr_open() cleanup.

Signed-off-by: Kuninori

ASoC: soc-compress: move soc_compr_free() next to soc_compr_open()

This patch moves soc_compr_free() next to soc_compr_open().
This is prepare for soc_compr_open() cleanup.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87o8ju5iwv.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...

ASoC: soc-component: add snd_soc_component_compr_get_metadata()

component related function should be implemented at
soc-component.c.
This patch adds snd_soc_component_compr_get_metadata().

Signed-o

ASoC: soc-component: add snd_soc_component_compr_get_metadata()

component related function should be implemented at
soc-component.c.
This patch adds snd_soc_component_compr_get_metadata().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87zh3l6gl8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

show more ...