Renesas R-Car can out TDM by
1) 6ch x 1 DAI as TDM Extend Mode
2) 2ch x 4 x 1 DAI as TDM split Mode
3) 2ch x 3 DAI or
   2ch x 4 DAI as TDM Multichannel Mode

This patch adds 1) TDM Extend Mode. Because of HW design,
this 6ch data will be outputed via 8ch data width.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current DVC is assuming that the sound is always stereo.
This patch makes it more flexible
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current SSI is assuming that the sound is always stereo. But, SSI needs
to calculate its frequency when master mode. Then This frequency depends
on each SSI's slots, and TDM mode (= TDM Extend Mode, TDM split Mode,
TDM Multichannel Mode).
This patch enables to use non-stereo sound.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

64bit compiler indicates this without this patch

linux/sound/soc/sh/rcar/core.c: In function 'rsnd_probe':
linux/sound/soc/sh/rcar/core.c:1002:16: warning: cast from pointer to\
     integer of different size [-Wpointer-to-int-cast]
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current Renesas sound driver requests struct platform_device on
probe/remove for each modules. But driver can get it by
rsnd_priv_to_pdev(). This patch removes unnecessary parameter
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

No board is using Renesas sound driver via platform boot now.
This means all user is using DT boot. Platform boot support is
no longer needed. But, it strongly depends on platform boot style.
Now, platform boot style was removed from driver.
This is cleanup patch, and remove pointless struct rcar_snd_info
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

No board is using Renesas sound driver via platform boot now.
This means all user is using DT boot. Platform boot support is
no longer needed. But, it strongly depends on platform boot style.
Now, platform boot style was removed from driver.
This is cleanup patch, and remove pointless struct rsnd_of_data
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

No board is using Renesas sound driver via platform boot now.
This means all user is using DT boot. Platform boot support is
no longer needed. But, it strongly depends on platform boot style.
This patch removes platform boot support from gen.c
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

No board is using Renesas sound driver via platform boot now.
This means all user is using DT boot. Platform boot support is
no longer needed. But, it strongly depends on platform boot style.
This patch removes platform boot support from core.c
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

ADG can output AUDIO_CLKOUTx, and these are generated from
AUDIO_CLKx. Thus we need to call clk_prepare()/clk_enable()
for AUDIO_CLKx.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

f1df1229("ASoC: rsnd: add common mod confirm method")
added rsnd_mod_make_sure(), but rsnd_mod_xxx() comment position
was wrong. This patch tidyup it.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.

This patch makes SSIU mod base common method
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.

This patch makes CMD mod base common method
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current Renesas sound driver doesn't have 1:1 relationship between
stream <-> mod because it is supporting MIX. Because of this reason
rsnd_mod_interrupt() is searching correspond mod by for loop.
But this loop is not needed, because each mod has own type.
This patch avoid pointless loop by using mod->type.

This patch is good for SSI-parent support, because stream might have
2 SSI as SSI-parent/child. SSI interrupt handler will be called twice
if stream has SSI-parent without this patch.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.

Current rsnd is controling each mod's status on mod. But it was not
good design for SSI, because stream might has SSI-parent.
In such case, it can't play/capture in same time, because SSI-parent
is used as normal SSI in other stream, but it shares same status.
To avoid this issue each mod's status is controlled by rsnd_dai_stream
instead of rsnd_mod.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current Renesas sound is supporting PIO fallback if it can't use DMA.
In such case, it should remove all attached modules, but current driver
is missing about CTU/MIX. Because current implement requests
specific mod for remove.
To avoid same things in future, this patch removes all mods,
and re-connects SSI when PIO fallback case.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.

DMAC/SSIU/SSI-parent/CMD will be implemented as module, but these are
not customer controlled module. These should be automatically install
to system. Because of this, rsnd_dai_connect() should be called from
each mod. SSI can be very special, because it will be installed as
SSI-parent / SSI-child. Thus, new rsnd_dai_connect() has type parameter
which should be mod->type except SSI-parent
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current rsnd_dai_call returns immediately if rsnd_mod_call return fail.
Thus, each callback-count can be unbalanced for example .init was OK,
start was OK, but, .stop was not OK. This case .quit should be called
but isn't called. And, rsnd_dai_stream_quit() also not be called.
rsnd_dai_call() should call all .stop/.quit eventhough it returns error.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current rsnd_dai_call didn't count callback-count if callback
wasn't implemented. Thus, it counts can be unbalance.
ex) .start : implemented
    .stop  : not implemented
This patch solve this issue
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Indicating each module method as debug message before executing is
readable/understandable.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Since commit 3d7608e4 ("ARM: shmobile: bockw: remove legacy
board file and config"), Renesas R-Car SoCs are only supported in
generic DT-only ARM multi-platform builds.  The driver doesn't need to
use platform data anymore, hence remove platform data configuration.

Move <sound/rcar_snd.h> to sound/soc/sh/rcar/, as it's no longer needed
by platform code.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound has SSI/SRC/DVC/MIX/ADG modules, and these have original
register mapping. Thus this driver is using regmap field, and each module
is using it based on each module ID.

Sometimes, each module needs other module to controlling. but current each
function is using just "mod" as parameter name. This is confusable.
For example, if SSI0 and SRC2 are connected, and if SRC module function
has bug of module access, and if it needs to control connected SSI,
SRC function will access to SSI2 (It should access to SSI0, but it uses
SRC's ID 2). This is easy to happen in current driver style.

To avoid this kind of confusable trouble, this patch adds module confirm
macro for debug purpose.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound Gen3 is updated version of Gen2. We need to update
driver for it, but basically it should works as Gen2 compatible.
This is initial support for Gen3. Gen3 specific feature will be
incrementally added in the future
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

84e95355("ASoC: rsnd: show debug message for SSI/SRC/DVC connection")
added debug message on rsnd_dai_connect(), but the relationship of
parameter check was absurdity. This patch tidyup it.
It is reported via Smatch/Dan
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch adds MIX (Mixer) initial support for rsnd driver.
It is assuming that this MIX is used via DPCM.

This is sample code for playback.

	CPU0  : [MEM] -> [SRC1] -> [CTU02] -+
					    |
					    +-> [MIX0] -> [DVC0] -> [SSI0]
	                                    |
	CPU1  : [MEM] -> [SRC2] -> [CTU03] -+

	sound {
		compatible = "renesas,rsrc-card";

		...

		cpu@0 {
			sound-dai = <&rcar_sound 0>;
		};

		cpu@1 {
			sound-dai = <&rcar_sound 1>;
		};

		codec {
			...
		};
	};

	rcar_sound {

		...

		rcar_sound,dai {
			dai0 {
				playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
			};
			dai1 {
				playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
			};
		};
	};
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch adds CTU (Channel Transfer Unit) support for rsnd driver.
But, it does nothing to data at this point, but is required for MIX
support.

CTU design is a little different from other IPs (CTU0 is including
CTU00 - CTU03, and CTU1 is including CTU10 - CTU13, these have different
register mapping) We need to care about it on this driver.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This is cleanup for CTU/MIX support
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

It can help for connection debug
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Sound L/R order of SSI is different from Linux sound data order.
So current rsnd driver is using DALIGN (= data align) to exchange data
align on SSIU. OTOH, CMD/SRC/SSIU have DALIGN register. Now inverted
sound volume will be exchanged if user used volume control on DVC.
Because SSIU which exchanges data align is located after DVC.

	MEM -> SRC -> DVC -> SSI

This patch exchanges data align SRC if possible
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current rsnd driver has rsnd_get_adinr_bit() to get bit settings for
ADINR (= Audio Information Register) of SSIU/SRC/DVC.
This patch adds rsnd_get_adinr_chan() to get channel settings for
ADINR (= Audio Information Register) of CTU/MIX.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Renesas sound IP (= SSIU/SRC/CTU/MIX/DVC) have ADINR
(= Audio Information Register), but some of them (= SSIU/SRC/DVC)
are for audio data bits, some of them (= CTU/MIX) are for audio data
channels.
Current rsnd driver is supporting SSIU/SRC/DVC, and these ADINR were
for bits. This patch rename rsnd_get_adinr() to rsnd_get_adinr_bit(),
and we will have rsnd_get_adinr_chan() for CTU/MIX.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Current sound data route settings is done in dvc.c, and it doesn't care
about CTU/MIX at this poinnt, but we need to care about these.
OTOH, rsnd driver already has rsnd_path_xxx() functions for data path which
are good match for CTU/MIX/DVC path selectio.
This patch adds new rsnd_path_parse() to select sound data route which will
care about CTU/MIX/DVC path.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

parse/break is a little ambiguous/confusable name for rsnd module path.
Especially for CTU/MIX support. It was renamed to add/remove
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

'8a4e379b("ASoC: rsnd: remove io from rsnd_mod")' removed mod/io
relationship. rsnd_dai_connect() mod/io check is no longer needed
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

'5451ea44 ("ASoC: rsnd: count each mod (SSI/SRC/DVC)")' counts each
module's callback status, but counts 1st callback only.
This patch fixup it. Otherwise, multi-called function will be trouble
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many path
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship. rsnd_mod_to_io() is no longer needed. Let's remove it.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many paths
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship.
This patch checks module working status via io instead of mod
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many paths
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship. This patch removes rsnd_mod_to_io() from snd_kcontrol
and related function.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many paths
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship. This patch removes rsnd_mod_to_io() from rsnd_dma_xxx()
and related function
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many paths
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship. This patch removes rsnd_mod_to_io() from rsnd_get_adinr()
and its related function
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>