ASoC: soc-dai: add flag to mute and unmute stream during trigger

In some setups like Speaker amps which are very sensitive, ex: keeping them
unmute without actual data stream for very short duration results in a
static charge and results in pop and clicks. To minimize this, provide a way
to mute and unmute such codecs during trigger callbacks.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20231027105747.32450-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: remove unused call back functions

Now, all drivers are using ops call backs.
Let's remove unused other call back functions.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87cyzx9m4o.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: merge DAI call back functions into ops

snd_soc_dai_driver has .ops for call back functions (A), but it also
has other call back functions (B). It is duplicated and confusable.

struct snd_soc_dai_driver {
...
^ int (*probe)(...);
| int (*remove)(...);
(B) int (*compress_new)(...);
| int (*pcm_new)(...);
v ...
(A) const struct snd_soc_dai_ops *ops;
...
}

This patch merges (B) into (A).

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v8dpb0w6.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: remove unused call back functions

Now, all drivers are using ops call backs.
Let's remove unused other call back functions.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87cyzx9m4o.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: merge DAI call back functions into ops

snd_soc_dai_driver has .ops for call back functions (A), but it also
has other call back functions (B). It is duplicated and confusable.

struct snd_soc_dai_driver {
...
^ int (*probe)(...);
| int (*remove)(...);
(B) int (*compress_new)(...);
| int (*pcm_new)(...);
v ...
(A) const struct snd_soc_dai_ops *ops;
...
}

This patch merges (B) into (A).

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v8dpb0w6.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-core.c: enable multi Component

Current ASoC Card is using dlc (snd_soc_dai_link_component) to find
target DAI / Component to be used.
Current dlc has below 3 items to identify DAI / Component

(a) name for Component
(b) of_node for Component
(c) dai_name for DAI

(a) or (b) is used to identify target Component, and (c) is used
to identify DAI.

One of the biggest issue on it today is dlc needs "name matching"
for "dai_name" (c).

It was not a big deal when we were using platform_device, because we
could specify nessesary "dai_name" via its platform_data.

But we need to find DAI name pointer from whole registered datas and/or
each related driver somehow in case of DT, because we can't specify it.
Therefore, Card driver parses DT and assumes the DAI, and find its name
pointer. How to assume is based on each Component and/or Card.

Next biggest issue is Component node (a)/(b).

Basically, Component is registered when CPU/Codec driver was
probed() (X). Here, 1 Component is possible to have some DAIs.

int xxx_probe(struct platform_device *pdev)
{
...
(X) ret = devm_snd_soc_register_component(pdev->dev,
&component_driver,
&dai_driver, dai_driver_num);
...
}

The image of each data will be like below.
One note here is "driver" is included for later explanation.

+-driver------+
|+-component-+|
|| dai0||
|| dai1||
|| ...||
|+-----------+|
+-------------+

The point here is 1 driver has 1 Component, because basically driver
calles snd_soc_register_component() (= X) once.

Here is the very basic CPU/Codec connection image.

HW image SW image
+-- Board ------------+ +-card--------------------------+
|+-----+ +------+| |+-driver------+ +-driver------+|
|| CPU | <--> |CodecA|| ||+-component-+| |+-component-+||
|+-----+ +------+| ||| dai|<=>|dai |||
+---------------------+ ||+-----------+| |+-----------+||
|+-------------+ +-------------+|
+-------------------------------+

It will be very complex if it has multi DAIs.
Here is intuitive easy to understandable HW / SW example.

HW image SW image
+-- Board ---------------+ +-card--------------------------+
|+--------+ +------+| |+-driver------+ +-driver------+|
|| CPU ch0| <--> |CodecA|| ||+-component-+| |+-component-+||
|| | +------+| ||| ch0 dai|<=>|dai |||
|| | +------+| ||| || |+-----------+||
|| ch1| <--> |CodecB|| ||| || +-------------+|
|+--------+ +------+| ||| || +-driver------+|
+------------------------+ ||| || |+-component-+||
||| ch1 dai|<=>|dai |||
||+-----------+| |+-----------+||
|+-------------+ +-------------+|
+-------------------------------+

It will be handled as multi interface as "one Card".

card0,0: CPU-ch0 - CodecA
card0,1: CPU-ch1 - CodecB
^

But, here is the HW image example which will be more complex

+-- Basic Board ---------+
|+--------+ +------+|
|| CPU ch0| <--> |CodecA||
|| ch1| <-+ +------+|
|+--------+ | |
+-------------|----------+
+-- expansion board -----+
| | +------+|
| +->|CodecB||
| +------+|
+------------------------+

We intuitively think we want to handle these as "2 Sound Cards".

card0,0: CPU-ch0 - CodecA
card1,0: CPU-ch1 - CodecB
^

But below image which we can register today doesn't allow it,
because the same Component will be connected to both Card0/1,
but it will be rejected by (Z).

+-driver------+
|+-component-+|
+-card0-------------------------+
||| || +-driver------+|
||| || |+-component-+||
||| ch0 dai|<=>|dai |||
||| || |+-----------+||
||| || +-------------+|
+-------------------------------+
|| ||
+-card1-------------------------+
||| || +-driver------+|
||| || |+-component-+||
||| ch1 dai|<=>|dai |||
||| || |+-----------+||
||| || +-------------+|
+-------------------------------+
|+-----------+|
+-------------+

static int soc_probe_component()
{
...
if (component->card) {
(Z) if (component->card != card) {
dev_err(component->dev, ...);
return -ENODEV;
}
return 0;
}
...
}

So, how about to call snd_soc_register_component() (= X) multiple times
on probe() to avoid buplicated component->card limitation, to be like
below ?

+-driver------+
+-card0-------------------------+
|| | +-driver------+|
||+-component-+| |+-component-+||
||| ch0 dai|<=>|dai |||
||+-----------+| |+-----------+||
|| | +-------------+|
+-------------------------------+
| |
+-card1-------------------------+
|| | +-driver------+|
||+-component-+| |+-component-+||
||| ch1 dai|<=>|dai |||
||+-----------+| |+-----------+||
|| | +-------------+|
+-------------------------------+
+-------------+

Yes, looks good. But unfortunately it doesn't help us for now.
Let's see soc_component_to_node() and snd_soc_is_matching_component()

static struct device_node
*soc_component_to_node(struct snd_soc_component *component)
{
...
(A) of_node = component->dev->of_node;
...
}

static int snd_soc_is_matching_component(...)
{
...
(B) if (dlc->of_node && component_of_node != dlc->of_node)
...
}

dlc checkes "of_node" to identify target component (B),
but this "of_node" came from component->dev (A) which is added
by snd_soc_register_component() (X) on probe().

This means we can have different "component->card", but have same
"component->dev" in this case.

Even though we calls snd_soc_register_component() (= X) multiple times,
all Components have same driver's dev, thus it is impossible to
identified the Component.
And if it was impossible to identify Component, it is impossible to
identify DAI on current implementation.

So, how to handle above complex HW image today is 2 patterns.
One is handles it as "1 big sound card".
The SW image is like below.

SW image
+-card--------------------------+
|+-driver------+ +-driver------+|
||+-component-+| |+-component-+||
||| ch0 dai|<=>|dai |||
||| || |+-----------+||
||| || +-------------+|
||| || +-driver------+|
||| || |+-component-+||
||| ch1 dai|<->|dai |||
||+-----------+| |+-----------+||
|+-------------+ +-------------+|
+-------------------------------+

But the problem is not intuitive.
We want to handle it as "2 Cards".

2nd pattern is like below.

SW image
+-card0-------------------------+
|+-driver------+ +-driver------+|
||+-component-+| |+-component-+||
||| ch0 dai|<=>|dai |||
||+-----------+| |+-----------+||
|+-------------+ +-------------+|
+-------------------------------+

+-card1-------------------------+
|+-driver------+ +-driver------+|
||+-component-+| |+-component-+||
||| ch1 dai|<=>|dai |||
||+-----------+| |+-----------+||
|+-------------+ +-------------+|
+-------------------------------+

It handles as "2 Cards", but CPU part needs to be probed as 2 drivers.
It is also not intuitive.

To solve this issue, we need to have multi Component support.

In current implementation, we need to identify Component first
to identify DAI, and it is using name matching to identify DAI.

But how about to be enable to directly identify DAI by unique way
instead of name matching ? In such case, we can directly identify DAI,
then it can identify Component from DAI.

For example Simple-Card / Audio-Graph-Card case, it is specifying DAI
via its node.

Simple-Card

sound-dai = <&cpu-sound>;

Audio-Graph-Card

dais = <&cpu-sound>;

If each CPU/Codec driver keeps this property when probing,
we can identify DAI directly from Card.
Being able to identify DAI directly means being able to identify its
Component as well even though Component has same dev (= B).

This patch adds new "dai_node" for it.

To keeping compatibility, it checks "dai_node" first if it has,
otherwise, use existing method (name matching).

Link: https://lore.kernel.org/r/87fskz5yrr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87fs5wo94v.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.c: add DAI get/match functions

Current ASoC is specifying and checking DAI name.
But where it came from and how to check was ambiguous.
This patch adds snd_soc_dai_name_get() / snd_soc_dlc_dai_is_match()
and makes it clear.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h6qco952.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: cleanup Playback/Capture data for snd_soc_dai

Current snd_soc_dai has data for Playback/Capture, but it is very
random. Someone is array (A), someone is playback/capture (B),
and someone is tx/rx (C);

struct snd_soc_dai {
...
(A) unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1];

(B) struct snd_soc_dapm_widget *playback_widget;
(B) struct snd_soc_dapm_widget *capture_widget;

(B) void *playback_dma_data;
(B) void *capture_dma_data;

...

(C) unsigned int tx_mask;
(C) unsigned int rx_mask;
};

Because of it, the code was very complicated.
This patch creates new data structure to merge these into one,
and tidyup the code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/87cz6vea1v.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: add snd_soc_dai_get/set_widget_playback/capture() helper

snd_soc_dai_get_widget() requests SNDRV_PCM_STREAM_PLAYBACK/CAPTURE.
This patch adds helper for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/877cx3foqz.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: add snd_soc_dai_tdm_mask_set/get() helper

Current ASoC has tx/rx_mask, and is directly accessing to them,
but accessing to it via function is nice idea.
This patch adds snd_soc_dai_tdm_mask_set/get() for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/878rhjfor8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: add snd_soc_dai_dma_data_set/get() for low level

Current ASoC has snd_soc_dai_set/get_dma_data() which is assuming
struct snd_pcm_substream to get Playback/Capture direction.

But, many drivers want to use it not through snd_pcm_substream.
This patch adds more low level snd_soc_dai_dma_data_set/get() for it,
and previous functions will be macro for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/87a61zfori.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: add missing snd_soc_dai_set_widget()

Current ASoC has snd_soc_dai_get_widget() (= _get_) but doesn't
have _set_ function. This patch adds it.

This patch also cleanup unnecessary line break for _get_ function.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/87bkmfforp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: Remove set_fmt_new callback

Now the behaviour of the core and all drivers is updated to the new
direct clock specification the temporary set_fmt_new callback can be
completely removed.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220519154318.2153729-56-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: core: Add set_fmt_new callback that directly specifies provider

The original set_fmt callback always passes clock provider/consumer
with respect to the CODEC. This made sense when the framework was
directly broken down into platforms and CODECs. Now everything is
componentised it simplifies things if each side of the link is
just told if it is provider or consumer of the clocks. To start
this migration add a new callback that can be used to receive a
direct specification of clocking. As there are more CODEC drivers
than platform drivers, we make the new flags identical to the old
CODEC flags meaning CODEC drivers will not require an update.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220519154318.2153729-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC/SoundWire: dai: expand 'stream' concept beyond SoundWire

The HDAudio ASoC support relies on the set_tdm_slots() helper to store
the HDaudio stream tag in the tx_mask. This only works because of the
pre-existing order in soc-pcm.c, where the hw_params() is handled for
codec_dais *before* cpu_dais. When the order is reversed, the
stream_tag is used as a mask in the codec fixup functions:

/* fixup params based on TDM slot masks */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
codec_dai->tx_mask)
soc_pcm_codec_params_fixup(&codec_params,
codec_dai->tx_mask);

As a result of this confusion, the codec_params_fixup() ends-up
generating bad channel masks, depending on what stream_tag was
allocated.

We could add a flag to state that the tx_mask is really not a mask,
but it would be quite ugly to persist in overloading concepts.

Instead, this patch suggests a more generic get/set 'stream' API based
on the existing model for SoundWire. We can expand the concept to
store 'stream' opaque information that is specific to different DAI
types. In the case of HDAudio DAIs, we only need to store a stream tag
as an unsigned char pointer. The TDM rx_ and tx_masks should really
only be used to store masks.

Rename get_sdw_stream/set_sdw_stream callbacks and helpers as
get_stream/set_stream. No functionality change beyond the rename.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20211224021034.26635-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: update snd_soc_dai_delay() to snd_soc_pcm_dai_delay()

Current soc_pcm_pointer() is manually calculating
both CPU-DAI's max delay (= A)
and Codec-DAI's max delay (= B).

static snd_pcm_uframes_t soc_pcm_pointer(...)
{
...
^ for_each_rtd_cpu_dais(rtd, i, cpu_dai)
(A) cpu_delay = max(cpu_delay, ...);
v delay += cpu_delay;

^ for_each_rtd_codec_dais(rtd, i, codec_dai)
(B) codec_delay = max(codec_delay, ...);
v delay += codec_delay;

runtime->delay = delay;
...
}

Current soc_pcm_pointer() and the total delay calculating
is not readable / difficult to understand.

This patch update snd_soc_dai_delay() to snd_soc_pcm_dai_delay(),
and calcule both CPU/Codec delay in one function.

Link: https://lore.kernel.org/r/87fszl4yrq.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875yssy25z.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-core: add snd_soc_runtime_get_dai_fmt()

ASoC is using dai_link which specify DAI format (= dai_link->dai_fmt),
and it is selected by "Sound Card" driver in corrent implementation.
In other words, Sound Card *needs* to setup it.
But, it should be possible to automatically selected from CPU and
Codec driver settings.

This patch adds new .auto_selectable_formats support
at snd_soc_dai_ops.

By this patch, dai_fmt can be automatically selected from each
driver if both CPU / Codec driver had it.
Automatically selectable *field* is depends on each drivers.

For example, some driver want to select format "automatically",
but want to select other fields "manually", because of complex limitation.
Or other example, in case of both CPU and Codec are possible to be
clock provider, but the quality was different.
In these case, user need/want to *manually* select each fields
from Sound Card driver.

This .auto_selectable_formats can set priority.
For example, no limitaion format can be HI priority,
supported but has picky limitation format can be next priority, etc.

It uses Sound Card specified fields preferentially, and try to select
non-specific fields from CPU and Codec driver automatically
if all drivers have .auto_selectable_formats.

In other words, we can select all dai_fmt via Sound Card driver
same as before.

Link: https://lore.kernel.org/r/871rb3hypy.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/871racbx0w.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h7ionc8s.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: Align the word of comment for SND_SOC_DAIFMT_CBC_CFC

Let's use "consumer" instead of "follower".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/8735usc1gr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: remove symmetric_rates/samplebits

All drivers are using new name.
Let's remove old one.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bldqn6sr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: sync parameter naming : rate / sample_bits

snd_pcm_runtime / snd_soc_dai / snd_soc_dai_driver / snd_soc_dai_link
have related parameter which is similar but not same naming.

struct snd_pcm_runtime {
...
(A) unsigned int rate;
...
(B) unsigned int sample_bits;
...
};

struct snd_soc_dai {
...
(A) unsigned int rate;
(B) unsigned int sample_bits;
...
};

struct snd_soc_dai_driver {
...
(A) unsigned int symmetric_rates:1;
(B) unsigned int symmetric_samplebits:1;
...
};

struct snd_soc_dai_link {
...
(A) unsigned int symmetric_rates:1;
(B) unsigned int symmetric_samplebits:1;
...
};

Because it is similar but not same naming rule,
code can be verbose / can't share macro.

This patch sync naming rule for framework.
- xxx_rates;
+ xxx_rate;

- xxx_samplebits;
+ xxx_sample_bits;

old name will be removed if all drivers were switched
to new naming rule.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87wnweolj6.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-pcm: care trigger rollback

soc_pcm_trigger() calls DAI/Component/Link trigger,
but some of them might be failed.

static int soc_pcm_trigger(...)
{
...
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = snd_soc_link_trigger(substream, cmd);
if (ret < 0)
break;

(*) ret = snd_soc_pcm_component_trigger(substream, cmd);
if (ret < 0)
break;

ret = snd_soc_pcm_dai_trigger(substream, cmd);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
ret = snd_soc_pcm_dai_trigger(substream, cmd);
if (ret < 0)
break;

ret = snd_soc_pcm_component_trigger(substream, cmd);
if (ret < 0)
break;

ret = snd_soc_link_trigger(substream, cmd);
break;
}
...
}

For example, if soc_pcm_trigger() failed at (*) point,
we need to rollback previous succeeded trigger.

This patch adds trigger mark for DAI/Component/Link,
and do STOP if START/RESUME/PAUSE_RELEASE were failed.

Because it need to use new rollback parameter,
we need to modify DAI/Component/Link trigger functions in the same time.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6uycssd.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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>

ASoC: topology: use inclusive language for bclk and fsync

Mirror suggested changes in alsa-lib.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201112163100.5081-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add mark for snd_soc_dai_hw_params/free()

soc_pcm_hw_params() does rollback when failed (A),
but, it is almost same as soc_pcm_hw_free().

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

^ component_err:
| ...
| interface_err:
(A) ...
| codec_err:
| ...
v return ret;
}

The difference is
soc_pcm_hw_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_pcm_hw_free() and rollback.

Now, soc_pcm_hw_params/free() are handling
1) snd_soc_link_hw_params/free()
2) snd_soc_pcm_component_hw_params/free()
=> 3) snd_soc_dai_hw_params/free()

This patch is for 3) snd_soc_dai_hw_params/free().

The idea of having bit-flag or counter is not enough for this purpose.
For example if one DAI is used for 2xPlaybacks for some reasons,
and if 1st Playback was succeeded but 2nd Playback was failed,
2nd Playback rollback doesn't need to call shutdown.
But it has succeeded bit-flag or counter via 1st Playback,
thus, 2nd Playback rollback will call unneeded shutdown.
And 1st Playback's necessary shutdown will not be called,
because bit-flag or counter was cleared by wrong 2nd Playback rollback.

To avoid such case, this patch marks substream pointer when hw_params() was
succeeded. If rollback needed, it will check rollback flag and marked
substream pointer.

One note here is that it cares *previous* hw_params() only now,
but we might want to check *whole* marked substream in the future.
This patch is using macro named "push/pop", so that it can be easily
update.

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

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

soc_pcm_open() does rollback when failed (A),
but, it is almost same as soc_pcm_close().

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

^ config_err:
| ...
| rtd_startup_err:
(A) ...
| component_err:
| ...
v return ret;
}

The difference is
soc_pcm_close() 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_pcm_close() and rollback.

Now, soc_pcm_open/close() are handling
=> 1) snd_soc_dai_startup/shutdown()
2) snd_soc_link_startup/shutdown()
3) snd_soc_component_module_get/put()
4) snd_soc_component_open/close()
5) pm_runtime_put/get()

This patch is for 1) snd_soc_dai_startup/shutdown().

The idea of having bit-flag or counter is not enough for this purpose.
For example if one DAI is used for 2xPlaybacks for some reasons,
and if 1st Playback was succeeded but 2nd Playback was failed,
2nd Playback rollback doesn't need to call shutdown.
But it has succeeded bit-flag or counter via 1st Playback,
thus, 2nd Playback rollback will call unneeded shutdown.
And 1st Playback's necessary shutdown will not be called,
because bit-flag or counter was cleared by wrong 2nd Playback rollback.

To avoid such case, this patch marks substream pointer when startup() was
succeeded. If rollback needed, it will check rollback flag and marked
substream pointer.

One note here is that it cares *current* startup() only now.
but we might want to check *whole* marked substream in the future.
This patch is using macro named "push/pop", so that it can be easily
update.

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

ASoC: soc-dai: clarify return value for get_sdw_stream()

Previous changes move to use ERR_PTR(-ENOTSUPP), but it's not clear
what implementations can return in case of errors. Explicitly document
that NULL is not a possible return value, only ERR_PTR with a negative
error code is valid.

Fixes: 308811a327c38 ('ASoC: soc-dai: return proper error for get_sdw_stream()')
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200904182854.3944-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: drop a duplicated word

Drop the repeated word "be" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200719003307.21403-1-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: remove .digital_mute

All drivers are now using .mute_stream.
Let's remove .digital_mute.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/87h7u72dqz.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: don't use discriminatory terms for comment

soc-dai is using discriminatory terms for comment.
This patch renames "slave" to "secondary", thus
we can keep M/S initials.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875zam3bmk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.c: add .no_capture_mute support

snd_soc_dai_digital_mute() is internally using both
mute_stream() (1) or digital_mute() (2), but the difference between
these 2 are only handling "direction".
We can merge digital_mute() into mute_stream

int snd_soc_dai_digital_mute(xxx, int direction)
{
...
else if (dai->driver->ops->mute_stream)
(1) return dai->driver->ops->mute_stream(xxx, direction);
else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
dai->driver->ops->digital_mute)
(2) return dai->driver->ops->digital_mute(xxx);
...
}

To prepare merging mute_stream()/digital_mute(),
this patch adds .no_capture_mute support to emulate .digital_mute().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87eeplxxj7.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: set dai_link dpcm_ flags with a helper

Add a helper to walk through all the DAIs and set dpcm_playback and
dpcm_capture flags based on the DAIs capabilities, and use this helper
to avoid setting these flags arbitrarily in generic cards.

The commit referenced in the Fixes tag did not introduce the
configuration issue but will prevent the card from probing when
detecting invalid configurations.

Fixes: b73287f0b0745 ('ASoC: soc-pcm: dpcm: fix playback/capture checks')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200707210439.115300-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: cleanup dai / component active code

No one is using dai->active, snd_soc_component_is_active().
Let's remove these.

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/87imgy58hp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_stream_active()

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/874ksi6n48.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_active()

Current snd_soc_dai_action() is updating
dai->stream_active for Playback/Capture (A),
dai->active for DAI (B)

void snd_soc_dai_action(struct snd_soc_dai *dai,
int stream, int action)
{
(A) dai->stream_active[stream] += action;
(B) dai->active += action;
dai->component->active += action;
}

But, these are very verbose, because we can calculate
DAI active from stream_active.

This patch adds snd_soc_dai_active() which calculate
DAI active from DAI stream_active.

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/877dxe6n4i.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_action()

snd_soc_runtime_action() updates DAI's xxx_active.
We should update these in the same time, and
it can be implemented at soc-dai.c.
This patch adds snd_soc_dai_action() for it.
This is prepare for xxx_active cleanup.

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/87a72a6n4s.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_get_metadata()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_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/87eesdssi8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_set_metadata()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_set_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/87ftctssid.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_pointer()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_pointer().

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/87h7x9ssii.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_ack()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_ack().

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/87imhpssim.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_get_params()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_get_params().

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/87k125ssir.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_set_params()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_set_params().

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/87lfmlssiv.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_trigger()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_trigger().

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/87mu71ssiz.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_shutdown()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_shutdown().

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/87o8rhssj3.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_compr_start()

dai related function should be implemented at soc-dai.c.
This patch adds snd_soc_dai_compr_start().

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/87pnbxssj7.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_remove()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update snd_soc_dai_remove() to
snd_soc_pcm_dai_remove(). This patch do it.

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/87r1wdssjc.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_probe()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update snd_soc_dai_probe() to
snd_soc_pcm_dai_probe(). This patch do it.

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/87sggtssjg.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_bespoke_trigger()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update soc_pcm_bespoke_trigger() to
snd_soc_pcm_dai_bespoke_trigger(). This patch do it.

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/87tv19ssjm.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_trigger()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update snd_soc_dai_trigger() to
snd_soc_pcm_dai_trigger(). This patch do it.

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/87v9lpssjr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_prepare()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update snd_soc_dai_prepare() to
snd_soc_pcm_dai_prepare(). This patch do it.

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/87wo65ssk2.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_pcm_dai_new()

We have 2 type of component functions
snd_soc_dai_xxx() is focusing to dai itself,
snd_soc_pcm_dai_xxx() is focusing to rtd related dai.

Now we can update soc_dai_pcm_new() to
snd_soc_pcm_dai_new(). This patch do it.

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/87y2qlssk7.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: revert all changes to DAI startup/shutdown sequence

On Baytrail/Cherrytrail, the Atom/SST driver fails miserably:

[ 9.741953] intel_sst_acpi 80860F28:00: FW Version 01.0c.00.01
[ 9.832992] intel_sst_acpi 80860F28:00: FW sent error response 0x40034
[ 9.833019] intel_sst_acpi 80860F28:00: FW alloc failed ret -4
[ 9.833028] intel_sst_acpi 80860F28:00: sst_get_stream returned err -5
[ 9.833033] sst-mfld-platform sst-mfld-platform: ASoC: DAI prepare error: -5
[ 9.833037] Baytrail Audio Port: ASoC: prepare FE Baytrail Audio Port failed
[ 9.853942] intel_sst_acpi 80860F28:00: FW sent error response 0x40034
[ 9.853974] intel_sst_acpi 80860F28:00: FW alloc failed ret -4
[ 9.853984] intel_sst_acpi 80860F28:00: sst_get_stream returned err -5
[ 9.853990] sst-mfld-platform sst-mfld-platform: ASoC: DAI prepare error: -5
[ 9.853994] Baytrail Audio Port: ASoC: prepare FE Baytrail Audio Port failed

Commit b56be800f1292 ("ASoC: soc-pcm: call
snd_soc_dai_startup()/shutdown() once") was the initial problematic
commit.

Commit 1ba616bd1a6d5e ("ASoC: soc-dai: fix DAI startup/shutdown sequence")
was an attempt to fix things but it does not work on Baytrail,
reverting all changes seems necessary for now.

Fixes: 1ba616bd1a6d5e ("ASoC: soc-dai: fix DAI startup/shutdown sequence")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200415030437.23803-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: fix DAI startup/shutdown sequence

The addition of a single flag to track the DAI status prevents the DAI
startup sequence from being called on capture if the DAI is already
used for playback.

Fix by extending the existing code with one flag per direction.

Fixes: b56be800f1292 ("ASoC: soc-pcm: call snd_soc_dai_startup()/shutdown() once")
Reported-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20200330160602.10180-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: return proper error for get_sdw_stream()

snd_soc_dai_get_sdw_stream() returns null if dai does not support
this callback, this is no very useful for the caller to
differentiate if this is an error or unsupported call for the dai.

return -ENOTSUPP in cases where this callback is not supported.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200316151110.2580-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add get_sdw_stream() callback

We only have a set() operation, provide the dual get() operation to
retrieve the stream information.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200225170041.23644-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-pcm: add snd_soc_dai_get_widget()

soc-pcm.c has dai_get_widget(), but it can be more generic.
This patch renames it to snd_soc_dai_get_widget(), and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87d0abjca1.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-pcm: add snd_soc_dai_get_pcm_stream()

DAI driver has playback/capture stream.
OTOH, we have SNDRV_PCM_STREAM_PLAYBACK/CAPTURE.
Because of this kind of implementation,
ALSA SoC needs to have many verbose code.

To solve this issue, this patch adds snd_soc_dai_get_pcm_stream() macro
to get playback/capture stream pointer from stream.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87ftf7jcab.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-pcm: merge playback/cature_active into stream_active

DAI has playback_active and capture_active to care usage count.
OTOH, we have SNDRV_PCM_STREAM_PLAYBACK/CAPTURE.
But because of this kind of implementation mismatch,
ALSA SoC has many verbose code.

To solve this issue, this patch merge playback_active/capture_active
into stream_active[2];

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/875zg5botu.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-pcm: call snd_soc_dai_startup()/shutdown() once

Current soc_pcm_open() calls snd_soc_dai_startup() under loop.
Thus, it needs to care about started/not-yet-started codec DAI.

But, if soc-dai.c is handling it, soc-pcm.c don't need to care
about it.
This patch adds started flag to soc-dai.h, and simplify soc-pcm.c.
This is one of prepare for cleanup soc-pcm-open()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875zgfcey5.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-core: remove bus_control

Now, snd_soc_dai_driver::bus_control is used for how to resume.
But, no driver which has bus_control has DAI driver suspend/resume
support.
This patch removes pointless bus_control from ALSA SoC.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pnffx7i4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-core: remove DAI suspend/resume

Historically, CPU and Codec were implemented different, but now it is
merged as Component.
ALSA SoC is supporting suspend/resume at DAI and Component level.
The method is like below.

1) Suspend/Resume all CPU DAI if bus-control was 0
2) Suspend/Resume all Component
3) Suspend/Resume all CPU DAI if bus-control was 1

Historically 2) was Codec special operation.
Because CPU and Codec were merged into Component,
CPU suspend/resume has 3 chance to suspend(= 1/2/3), but
Codec suspend/resume has 1 chance (= 2).

Here, DAI side suspend/resume is caring bus-control, but no driver
which is supporting suspend/resume is setting bus-control.
This means 3) was never used.

Here, used parameter for suspend/resume component->dev and dai->dev are
same pointer.
For that reason, we can merge DAI and Component suspend/resume.
One note is that we should use 2), because it is caring BIAS level.

This patch removes 1) and 3).

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r1zvx7i8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: use bit field for bus_control

.bus_control can be bit field.
this patch do it.

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/87v9uszazh.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: move snd_soc_dai_stream_valid() to soc-dai.c

snd_soc_dai_stream_valid() is function to check stream validity.
But, some code is using it, some code are checking stream->channels_min
directly. Doing samethings by different method is confusable.
This patch uses same funcntion for same purpose.

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

ASoC: soc-dai: add snd_soc_dai_compress_new()

Current ALSA SoC is directly using dai->driver->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_compress_new() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h87ehn1a.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_remove()

Current ALSA SoC is directly using dai->driver->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_remvoe() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87imruhn1x.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_probe()

Current ALSA SoC is directly using dai->driver->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_probe() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k1cahn26.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_resume()

Current ALSA SoC is directly using dai->driver->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_resume() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfwqhn2j.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_suspend()

Current ALSA SoC is directly using dai->driver->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_suspend() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87muh6hn2x.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_delay()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_delay() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87o91mhn3i.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_bespoke_trigger()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_bespoke_trigger() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r26ihn3u.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_trigger()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_trigger() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sgqyhn40.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_prepare()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_prepare() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87tvbehn46.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_shutdown()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_shutdown() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v9vuhn4b.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_startup()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_startup() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87wogahn4i.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: add snd_soc_dai_hw_free()

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_hw_free() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87y30qhn4w.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai: mv soc_dai_hw_params() to soc-dai

Sometimes ALSA SoC naming is very random.
Current soc_dai_hw_params() should use snd_soc_dai_xxx() style.
And then, 1st parameter should be dai. Otherwise it is confusable.
- soc_dai_hw_params(..., dai);
+ snd_soc_dai_hw_params(dai, ...);

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zhl6hn5b.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: core: add support to snd_soc_dai_get_channel_map()

On Qualcomm platforms, specifically with SLIMbus interfaced codecs,
the codec slim channel numbers are passed to DSP while configuring
the slim audio path. Having get_channel_map() would allow dais to
share such information across multiple dais.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: convert to SPDX identifiers

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Add SoundWire stream programming interface

SoundWire stream needs to be propagated to all the DAIs(cpu, codec).
So, add a snd_soc_dai_set_sdw_stream() API for the same.

Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

ASoC: remove Codec related code

Now no one is using Codec related code.
Let's remove all

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: dai playback and capture active may be greater than 1

At the moment playback_active and capture_active are using only 1 bit so
the maximum active count is 1.

However, snd_soc_runtime_activate() may be called several time on the
same dai. This happens when a dai is part of several dai_links. It is
often the case for "snd-soc-dummy-dai".

This is a problem if snd_soc_runtime_activate() is called an even number
of times on a dai. In this case the active count overflow back to 0. As
consequence, ASoC functions, such as soc_dpcm_runtime_update(), won't run
correctly.

Storing these usage counts on plain 'unsigned int' solves the problem.

Fixes: f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component Support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: soc-dai.h: remove symmetric_xxx from snd_soc_dai

ALSA SoC has some duplicate parameter.
snd_soc_dai::symmetric_xxx are one of them.

commit f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component
Support") moved "symmetric_xxx" flags from snd_soc_dai to
snd_soc_dai_driver. No one is using snd_soc_dai::symmetric_xxx now.
Let's remove it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ALSA: pcm: add SNDRV_PCM_FORMAT_{S,U}20

This format is similar to existing SNDRV_PCM_FORMAT_{S,U}20_3 that keep
20-bit PCM samples in 3 bytes, however i.MX6 platform SSI FIFO does not
allow 3-byte accesses (including DMA) so a 4-byte (more conventional)
format is needed for it.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ASoC: core: add optional pcm_new callback for DAI driver

During probe, DAIs can need to perform some actions that requests
the knowledge of the pcm runtime handle.
The callback is called during DAIs linking, after PCM device creation.
For instance this can be used to add relationship between a DAI pcm
control and the pcm device.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: compress: Add support for compress dai ops

ASoC Compress ops have only platform ops and no DAI ops unlike PCM device
where we have both platform ops as well as DAI ops.

So add compress dai ops and add this new structure to the ASoC core to make
compressed devices a first class ASoC citizen

Again like PCM ops, drivers are free to implement either or both of
these ops based on device needs.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: bunch up bit field for snd_soc_dai

We can reduce struct size in certain environment.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: topology: ABI - Define DAI physical PCM data formats

Define DAI physical PCM data formats for user space, so users can
configure the formats of backends by topology (e.g. the DAI format
to set on backend link init).

The kernel will also refer to these formats.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Support registering a DAI dynamically

Define API snd_soc_register_dai() to add a DAI dynamically and
create the DAI widgets. Topology can use this API to register DAIs
when probing a component with topology info. These DAIs's playback
& capture widgets will be freed when the sound card is unregistered
and the DAIs will be freed when cleaning up the component.

And a dobj is embedded into the struct snd_soc_dai_driver. Topology
can use the dobj to find the DAI drivers created by it and free them
when the topology component is removed.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Document DAI signal polarity

Currently there is no clear definition of what FSYNC polarity is.
Different drivers use its own definition of what is "normal" and what is
"inverted" fsync. This leads to compatibility problems between drivers.

For example TegraX1 driver assumes that DSP-A format with frames
starting at rising FSYNC edge has "inverted" polarity,
while RT5677 assumes it is "normal" polarity.

Explicitly specify meaning of BCLK/FSYNC polarity to avoid future
compatibility problems.

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: compress: add config item for soc-compress to make it compiled only when needed

We don't always need soc-compress in soc, here add a config item
SND_SOC_COMPRESS, when nobody select it, the soc-compress will
not be compiled.

Here also change Kconfig to 'select SND_SOC_COMPRESS' for drivers
that needed soc-compress.

Signed-off-by: Jie Yang <yang.jie@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Rename snd_soc_dai_driver struct ac97_control field to bus_control

Setting the ac97_control field on a CPU DAI tells the ASoC core that this
DAI in addition to audio data also transports control data to the CODEC.
This causes the core to suspend the DAI after the CODEC and resume it before
the CODEC so communication to the CODEC is still possible. This is not
necessarily something that is specific to AC'97 and can be used by other
buses with the same requirement. This patch renames the flag from
ac97_control to bus_control to make this explicit.

While we are at it also change the type from int to bool.

The following semantich patch was used for automatic conversion of the
drivers:
// <smpl>
@@
identifier drv;
@@
struct snd_soc_dai_driver drv = {
- .ac97_control
+ .bus_control
=
- 1
+ true
};
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: ac97: Drop support for setting platform data via the CPU DAI

This has no users since commit f0fba2ad1b6b ("ASoC: multi-component - ASoC
Multi-Component Support") which was almost 5 years ago. Given that this runs
after CODEC probe functions have been run it also doesn't seem to be that
useful.

So drop it altogether to make the code simpler.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Remove card field from snd_soc_dai struct

The card field of the snd_soc_dai field is very rarely used. We can use
dai->component->card instead and remove the card field from the snd_soc_dai
struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: Remove platform field from snd_soc_dai

Typically a DAI does not need direct access to the platform. Currently the
only user of this field is in a platform driver where we have a more direct
way of getting a pointer to the platform. This patch updates the driver to
use the more direct way and then removes the platform field from the
snd_soc_dai struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

ASoC: core: Add initial support for DAI multicodec

DAI link assumes a one to one mapping between CPU DAI and CODEC. In
some cases, the same CPU DAI can be connected to several codecs.
This is the case for example, if you connect two mono codecs to the
same I2S link in order to have a stereo card.
The current ASoC implementation does not allow such setup.

Add support for DAI links composed of a single CPU DAI and multiple
CODECs. Sound cards have to pass the CODECs array in the corresponding
DAI link through a new 'snd_soc_dai_link_component' struct. Each CODEC in
this array is described in the same manner single CODEC DAIs are
(either DT/OF node or codec_name).

Multi-codec links are not supported in the case of CODEC to CODEC links.
Just print a warning if it happens.

Based on an original code done by Misael.

Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: dapm: Remove DAI DAPM context

The DAI DAPM context was added in commit be09ad90 ("ASoC: core: Add platform DAI
widget mapping") and the only user was removed again in commit ae10e7e8f ("ASoC:
core: Only add platform DAI widgets once."). Now that we have a per component
DAPM context it is unlikely that we'll need the DAI DAPM context again.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: Remove runtime field from DAI

This was initially removed in commit 6423c1875 ("ASoC: Remove runtime field from
DAI"), but was, presumably by accident, brought back in commit f0fba2ad1 ("ASoC:
multi-component - ASoC Multi-Component Support"). But has never been
initialized to anything but NULL ever since. This commit removes it again.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: Remove card's DAI list

Commit f0fba2ad1 ("ASoC: multi-component - ASoC Multi-Component Support") added
a per card list that keeps track of all the DAIs that have been registered with
the card, but the list has never been used. This patch removes it again.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: core: remove the 'of_' prefix of of_xlate_tdm_slot_mask.

The 'of_' is not appropriate here for there hasn't any DT parsing.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: Add component pointer to the DAI struct

Keep track of which component registered a DAI. We'll need this as
componentization progresses.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: core: add TDM slot parsing from DT supports

For some CPU/CODEC DAI devices the TDM slot infomation maybe needed. This
patch adds the slot parsing from DT supports.

TDM slot properties:
dai-tdm-slot-num : Number of slots in use.
dai-tdm-slot-width : Width in bits for each slot.

For instance:
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <8>;

And for each spcified driver, there could be one .of_xlate_tdm_slot_mask()
to specify a explicit mapping of the channels and the slots. If it's absent
the default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the
tx and rx masks.

For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit
for an active slot as default, and the default active bits are at the LSB of
the masks.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: utils: Add internal call to determine if DAI is dummy.

Provide a quick way to tell if a DAI is a dummy DAI or a regular DAI.
This is for internal DAPM usage only and is used to determine whether to
insert a DAI link connection into the DAPM graph.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: soc-pcm: add symmetry for channels and sample bits

Some SoCs can only work in mono or stereo mode at one time. So if
we let them capture a mono stream while playing a stereo stream,
there might be a problem occur to one of these two streams: double
paced or slowed down.

In soc-pcm.c, we have soc_pcm_apply_symmetry() to apply the rate
symmetry. But we don't have one for channels.

Likewise, we can treat symmetric_rate as a solution for those SoCs
or CODECs which can not handle asymmetrical LRCLK. But it's also
impossible for them to handle asymmetrical BCLK. And accodring to
BCLK = LRCLK * channel number * slot size(fixed or sample bits),
sample bits might also be a problem if they are not using a fixed
slot size.

Thus, this patch applys symmetry for channels and sample bits.

Meanwhile, there might be a race between two substreams if starting
simultaneously. Previously, we only added warning to compalin but
still using conservative way to let it carry on. However, this patch
rejects the second stream with any unmatched parameter to make sure
the first existing stream won't be broken.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: dai: Provide interface for setting DMA data at probe time

Allow DMA data to be set at probe time for devices that can do that,
avoiding the need to do it every time we start a stream and supporting
non-DT dmaengine users using the helpers.

Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: snd_soc_dai_ops trigger function description

Add a comment to the trigger function in snd_soc_dai_ops struct about
possible command sequences.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: core: Add API for configuration of DAI BCLK ratio

Some codec drivers when running in slave mode require that BCLK to sample rate ratio
is explicitly set by the machine driver as it may not be exactly rate * frame size.

Extend the DAI API by adding :-

int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

ASoC: snd_soc_[un]register_dai[s]() become non global function

All drivers are using snd_soc_register_component()
instead of snd_soc_register_dai[s]()
snd_soc_[un]register_dai[s]() are no longer needed

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core: Allow digital mute for capture

Help avoid noise from the power up of the capture path propagating through
into the start of the recording (especially noise caused by the ramp of
microphone biases) by keeping the capture muted until after we've finished
powering things up with DAPM in the same manner we do for playback. This
allows us to take advantage of soft mute support in the hardware more
effectively and is more consistent.

The core code using the existing digital mute operation is updated to take
advantage of this. Some additional cases in the soc-pcm code and suspend
will need separate handling but these are less practically relevant than
the main runtime stream start/stop case.

Rather than refactor the digital mute function in every single driver a
new operation is added for drivers taking advantage of this functionality,
the old operation should be phased out over time.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by Vinod Koul <vinod.koul@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

ASoC: SND_SOC_DAIFMT_GATED become 0 as default settings

Current soc-dai.h defines SND_SOC_DAIFMT_GATED as (2 << 4),
but gated clock should be default settings (= 0).
This patch fixup SND_SOC_DAIFMT_GATED as (0 << 4).

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: SND_SOC_DAIFMT_NB_NF become 0 as default settings

Current soc-dai.h defines SND_SOC_DAIFMT_NB_NF as (1 << 8),
but normal bit clock / normal frame should be
default settings (= 0).
This patch fixup SND_SOC_DAIFMT_NB_NF as (0 << 8).

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Prevent pop_wait overwrite

pop_wait is used to determine if a deferred playback close
needs to be cancelled when the a PCM is open or if after
the power-down delay expires it needs to run. pop_wait is
associated with the CODEC DAI, so the CODEC DAI must be
unique. This holds true for most CODECs, except for the
dummy CODEC and its DAI.

In DAI links with non-unique dummy CODECs (e.g. front-ends),
pop_wait can be overwritten by another DAI link using also a
dummy CODEC. Failure to cancel a deferred close can cause
mute due to the DAPM STOP event sent in the deferred work.

One scenario where pop_wait is overwritten and causing mute
is below (where hw:0,0 and hw:0,1 are two front-ends with
default pmdown_time = 5 secs):

aplay /dev/urandom -D hw:0,0 -c 2 -r 48000 -f S16_LE -d 1
sleep 1
aplay /dev/urandom -D hw:0,1 -c 2 -r 48000 -f S16_LE -d 3 &
aplay /dev/urandom -D hw:0,0 -c 2 -r 48000 -f S16_LE

Since CODECs may not be unique, pop_wait is moved to the PCM
runtime structure. Creating separate dummy CODECs for each
DAI link can also solve the problem, but at this point it's
only pop_wait variable in the CODEC DAI that has negative
effects by not being unique.

Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: add definations for compressed operations

Here we update the asoc structures to add compress stream definations
First the struct snd_soc_dai_driver adds a new member to indicate if the dai is
compressed or pcm. Next we add a new structre the struct snd_soc_compr_ops in
the struct snd_soc_dai_link. This is to be used for machine driver to perform
any opertaions required for setting up compressed audio streams

next is the compressed data operations, they are added using struct
snd_compr_ops in the struct snd_soc_platform_driver.

Signed-off-by: Namarta Kohli <namartax.kohli@intel.com>
Signed-off-by: Ramesh Babu K V <ramesh.babu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core: Allow DAIs to specify a base address

Devices with many DAIs are becoming more and more common, and generally
the more modern devices have consistent register layouts between DAIs.
Rather than have drivers open code lookups based on the DAI ID or cause
uglification in UI by having register addresses for IDs provide a base
address field they can use.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

ASoC: dpcm: Add bespoke trigger()

Some on SoC DSP HW is very tightly coupled with DMA and DAI drivers. It's
necessary to allow some flexability wrt to PCM operations here so that we
can define a bespoke DPCM trigger() PCM operation for such HW.

A bespoke DPCM trigger() allows exact ordering and timing of component
triggering by allowing a component driver to manage the final enable
and disable configurations without adding extra complexity to other
component drivers. e.g. The McPDM DAI and ABE are tightly coupled on
OMAP4 so we have a bespoke trigger to manage the trigger to improve
performance and reduce complexity when triggering new McPDM BEs.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core: Add platform DAI widget mapping

Add platform driver support for CPU DAI DAPM widgets.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core: Split the union for CODEC/platform in the DAI

There's now core code which falls back to global CODEC operations for
DAI calls that needs to be able to tell if it's dealing with a CPU or
CODEC DAI and given the small number of DAIs in a typical system and
overall memory usage pattern saving a pointer per DAI is really not
worth the effort.

Reported-by: Ian Lartey <ian@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

ASoC: dapm: Implement and instantiate DAI widgets

In order to allow us to do smarter things with DAI links create DAPM
widgets which directly represent the DAIs in the DAPM graph. These are
automatically created from the DAIs as we probe the card with references
held in both directions between the widget and the DAI.

The widgets are not made available for direct instantiation by drivers,
they are created automatically from the DAIs. Drivers should be updated
to create stream routes using DAPM maps rather than by annotating AIF
and DAC widgets with streams.

In order to ease transition to this model from existing drivers we
automatically create DAPM routes between the DAI widgets and the existing
stream widgets which are started and stopped by the DAI widgets, though
the old stream handling mechanism is still in place. This also has the
nice effect of removing non-DAPM devices as any device with a DAI
acquires a widget automatically which will allow future simplifications
to the core DAPM logic.

The intention is that in future the AIF and DAI widgets will gain the
ability to interact such that we are able to manage activity on
individual channels independantly rather than powering up and down the
entire AIF as we do currently.

Currently we only generate these for CODECs, mostly as I have no systems
with non-CODEC DAPM to integrate with. It should be a simple matter of
programming to add the additional hookup for these.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

ASoC: Allow DAI formats to be specified in the dai_link

For almost all machines the DAI format is a constant, always set to the
same thing. This means that not only should we normally set it on init
rather than in hw_params() (where it has been for historical reasons) we
should also allow users to configure this by setting a variable in the
dai_link structure. The combination of these two will make many machine
drivers even more data driven.

Implement a new dai_fmt field in the dai_link doing just that. Since 0 is
a valid value for many format flags and we need to be able to tell if the
field is actually set also add one to all the values used to configure
formats.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: soc-core: symmetry checking for each DAIs separately

The orginal code does not cover the case that one DAI such as codec
may be shared between other two DAIs(CPU).
When do symmetry checking, altough the codec DAI requires symmetry,
the two CPU DAIs may still be configured to run on different rates.

We change to check each DAI's state separately instead of only checking
the dai link to prevent this issue.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core - Allow components to probe/remove in sequence.

Some ASoC components depend on other ASoC components to provide clocks and
power resources in order to probe() and vice versa for remove().

Allow components to be ordered so that components can be probed() and removed()
in sequences that conform to their dependencies.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Make the DAI ops constant in the DAI structure

Neither drivers nor the core should be fiddling with the actual ops
structure at runtime.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

ASoC: Remove cyclic dependency between soc.h and soc-dapm.h/soc-dai.h

There is no need anymore to include soc.h in soc-dapm.h and soc-dai.h as
drivers are converted to include only soc.h.

Thanks to Lars-Peter Clausen <lars@metafoo.de> for pointing out the issue.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: multi-component - ASoC Multi-Component Support

This patch extends the ASoC API to allow sound cards to have more than one
CODEC and more than one platform DMA controller. This is achieved by dividing
some current ASoC structures that contain both driver data and device data into
structures that only either contain device data or driver data. i.e.

struct snd_soc_codec ---> struct snd_soc_codec (device data)
+-> struct snd_soc_codec_driver (driver data)

struct snd_soc_platform ---> struct snd_soc_platform (device data)
+-> struct snd_soc_platform_driver (driver data)

struct snd_soc_dai ---> struct snd_soc_dai (device data)
+-> struct snd_soc_dai_driver (driver data)

struct snd_soc_device ---> deleted

This now allows ASoC to be more tightly aligned with the Linux driver model and
also means that every ASoC codec, platform and (platform) DAI is a kernel
device. ASoC component private data is now stored as device private data.

The ASoC sound card struct snd_soc_card has also been updated to store lists
of it's components rather than a pointer to a codec and platform. The PCM
runtime struct soc_pcm_runtime now has pointers to all its components.

This patch adds DAPM support for ASoC multi-component and removes struct
snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec
or runtime PCM level basis rather than using snd_soc_socdev.

Other notable multi-component changes:-

* Stream operations now de-reference less structures.
* close_delayed work() now runs on a DAI basis rather than looping all DAIs
in a card.
* PM suspend()/resume() operations can now handle N CODECs and Platforms
per sound card.
* Added soc_bind_dai_link() to bind the component devices to the sound card.
* Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove
DAI link components.
* sysfs entries can now be registered per component per card.
* snd_soc_new_pcms() functionailty rolled into dai_link_probe().
* snd_soc_register_codec() now does all the codec list and mutex init.

This patch changes the probe() and remove() of the CODEC drivers as follows:-

o Make CODEC driver a platform driver
o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core.
o Removed all static codec pointers (drivers now support > 1 codec dev)
o snd_soc_register_pcms() now done by core.
o snd_soc_register_dai() folded into snd_soc_register_codec().

CS4270 portions:
Acked-by: Timur Tabi <timur@freescale.com>

Some TLV320aic23 and Cirrus platform fixes.
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>

TI CODEC and OMAP fixes
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>

Samsung platform and misc fixes :-
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>

MPC8610 and PPC fixes.
Signed-off-by: Timur Tabi <timur@freescale.com>

i.MX fixes and some core fixes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

J4740 platform fixes:-
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

CC: Tony Lindgren <tony@atomide.com>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Kevin Hilman <khilman@deeprootsystems.com>
CC: Sascha Hauer <s.hauer@pengutronix.de>
CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
CC: Kuninori Morimoto <morimoto.kuninori@renesas.com>
CC: Daniel Gloeckner <dg@emlix.com>
CC: Manuel Lauss <mano@roarinelk.homelinux.net>
CC: Mike Frysinger <vapier.adi@gmail.com>
CC: Arnaud Patard <apatard@mandriva.com>
CC: Wan ZongShun <mcuos.com@gmail.com>

Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

ALSA: ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream

This fixes a memory corruption when ASoC devices are used in
full-duplex mode. Specifically for pxa-ssp code, where this pointer
is dynamically allocated for each direction and destroyed upon each
stream start.

All other platforms are fixed blindly, I couldn't even compile-test
them. Sorry for any breakage I may have caused.

[Note that this is a backported version for 2.6.34.
Upstream commit is fd23b7dee]

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Reported-by: Michael Hirsch <m.hirsch@raumfeld.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream

This fixes a memory corruption when ASoC devices are used in
full-duplex mode. Specifically for pxa-ssp code, where this pointer
is dynamically allocated for each direction and destroyed upon each
stream start.

All other platforms are fixed blindly, I couldn't even compile-test
them. Sorry for any breakage I may have caused.

Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Reported-by: Michael Hirsch <m.hirsch@raumfeld.com>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: core: Add delay operation to snd_soc_dai_ops

The delay callback can be used by the core to query the delay
on the dai caused by FIFO or delay in the platform side.
In case if both CPU and CODEC dai has FIFO the delay reported
by each will be added to form the full delay on the chain.
If none of the dai has FIFO, than the delay will be kept as
zero.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Remove runtime field from DAI

In order for having snd_soc_dais shared among two or more dai_links,
remove the relatively global runtime field from the struct snd_soc_dai

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: fix compile breakage - add a missing header include

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Add PDM DAI format definition

Add DAI format definition for PDM interfaces.

Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Provide API for reordering channels

The patch adds an interface to set the relationship between audio
channel number and slot number. The interface should be really useful
because audio channel n doesn't always use slot n in all platforms. And
for some devices, the relationship even can change with sound mode
switch in 2.1,3.1,4.1,5.1,6.1,7.1 etc.

Signed-off-by: Barry Song <21cnbao@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Add source argument to PLL configuration

More and more devices feature PLLs and FLLs with the ability to select
between multiple input clocks. In order to better support these devices
a new argument, source, has been added to the set_pll() configuration
API. Using set_clkdiv() is often difficult due to the need to stop the
PLL/FLL before any reconfiguration can be done.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Define more formats for the AC97 CODECs

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: change set_tdm_slot api to allow slot_width override.

Extend set_tdm_slot to allow the user to arbitrarily set the frame width
and active TX/RX slots.

Updates magician.c and wm9081.c for the new set_tdm_slot(). wm9081.c
still doesn't handle the slot_width override.

While being there, correct an incorrect use of SlotsPerFrm(7) use in
bitmask on pxa-ssp.c (SSCR0_SlotsPerFrm(x) is (((x) - 1) << 24)) ).

(this series is meant for Mark's for-2.6.32 branch)

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ALSA: Allow passing platform_data to devices attached to AC97 bus

This patch allows passing platform_data to devices attached to AC97 bus
(like touchscreens, battery measurement chips ...).

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: fixes multiple typos in comments, no functional change

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Add SNDRV_PCM_FMTBIT_S32_BE as a valid AC97 format

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Remove redundant codec pointer from DAIs

The DAI structure has two pointers to the codec, one in the body of the
DAI and one in a union for a parent pointer. Drop the parent pointer
version.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Remove unused DAI format defines

The defines for TDM and synchronous clocks are not used - they are
mostly a legacy of the automatic clocking configuration. TDM will
require configuration of the number of timeslots and which ones to use
so can't be fit into the DAI format and synchronous mode is handled by
symmetric_rates (and needs to be done by constraints rather than when
the DAI format is being configured).

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Use a shared define for AC97 CODEC data formats

The AC97 wire format is completely fixed so CODECs don't have any choice
about the formats they accept but controllers accept a variety of data
formats and render them down onto the bus. Have a shared define so all
the CODEC drivers will interoperate with any of our controller drivers.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Provide core support for symmetric sample rates

Many devices require symmetric configurations of capture and playback
data formats, often due to shared clocking but sometimes also due to
other shared playback and record configuration in the device. Start
providing core support for this by allowing the DAIs or the machine
to specify that the sample rates used should be kept symmetric.

A flag symmetric_rates is provided in the snd_soc_dai and
snd_soc_dai_link structures. If this is set in either of the DAIs or in
the machine then a constraint will be applied when a stream is already
open preventing any changes in sample rate.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: make ops a pointer in 'struct snd_soc_dai'

Considering the fact that most cpu_dai or codec_dai are using a same
'snd_soc_dai_ops' for several similar interfaces, 'ops' would be better
made a pointer instead, to make sharing easier and code a bit cleaner.

The patch below is rather preliminary since the asoc tree is being
actively developed, and this touches almost every piece of code,
(and possibly many others in development need to be changed as
well). Building of all codecs are OK, yet to every SoC, I didn't test
that.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Add DAI registration API

Add API calls to register and unregister DAIs with the core. Currently
these APIs are ineffective. Since multiple DAIs for a given device are
a common case bulk variants are provided.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Remove platform device from DAI suspend and resume operations

None of the DAIs use it except s3c2412-i2s which only uses it for
dev_() printouts.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Remove DAI type information

DAI type information is only ever used within ASoC in order to special
case AC97 and for diagnostic purposes. Since modern CPUs and codecs
support multi function DAIs which can be configured for several modes
it is more trouble than it's worth to maintain anything other than a
flag identifying AC97 DAIs so remove the type field and replace it with
an ac97_control flag.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Merge snd_soc_ops into snd_soc_dai_ops

Liam Girdwood's ASoC v2 work avoids having two different ops structures
for DAIs by merging the members of struct snd_soc_ops into struct
snd_soc_dai_ops, allowing per DAI configuration for everything.
Backport this change.

This paves the way for future work allowing any combination of DAIs to
be connected rather than having fixed purpose CODEC and CPU DAIs and
only allowing CODEC<->CPU interconnections.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

ASoC: Move DAI structure definitions into new soc-dai.h

ASoC v2 factors most of the contents of soc.h out into separate headers,
including soc-dai.h for the DAI. Factor the existing DAI API out into
this file in order to prepare for backporting of the ASoC v2 DAI API.
Also backport some of Liam's improvements to the documentation.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>