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>

sh_clk header is not needed, and it will create confusion.
Let's remove it.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

rsnd_src_pcm_new() is used only from Gen2. make it clear in function name,
and remove unneeded Gen1 check.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

rsnd_dma_to_xxx() macro should exist in same place
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

On arm64:

    sound/soc/sh/rcar/dma.c: In function 'rsnd_dmaen_init':
    sound/soc/sh/rcar/dma.c:180:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	     (void *)id);
	     ^
    include/linux/dmaengine.h:1185:75: note: in definition of macro 'dma_request_channel'
     #define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y)
									       ^

Add an intermediate cast to "uintptr_t" to kill the compile warning.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMark Brown <broonie@kernel.org>

rsnd_of_parse_ctu() is not used outside this file so it can be static.
Fixes the following sparse warning:

	sound/soc/sh/rcar/ctu.c:72:6: warning: symbol 'rsnd_of_parse_ctu' was
		not declared. Should it be static?
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-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>

Current rsnd driver is assuming Audio DMAC / Audio DMAC peri peri
are used from SSI/SSIU/SRC/DVC. But we will add CTU/MIX to this driver.
Then, current DMA path searching method is not understandable, and good
enough for this purpose. This patch update DMA path search method, more
simply.
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>

Sometimes we would like to get each module directly, especially data path
searching. this patch adds rsnd_io_to_mod() macro, and existing
rsnd_io_to_mod_xxx() use 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>

Current rsnd driver is using Audio DMAC (via DMAEngine) and
Audio DMAC peri peri (via original method), and usage of these DMAC
are different. Indicates its naming is useful for debugging.
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>

DVC doesn't support Gen1, check it beginning of probe
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>

rsnd_dma_ops is used only from dma.c, rsnd.h doesn't need 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>

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>

Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC,
and these have similar register. xxxIR (Initialization Register) is one
of them. These xxxIR need be set to 1 during initialization.
Current rsnd driver has src.c / dvc.c, and we will have mix.c.
It is readable if these have same named function.
This patch adds rsnd_src_initialize_lock/unlock() and make sure 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>

Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC,
and these have similar register. xxxIR (Initialization Register) is one
of them. These xxxIR need be set to 1 during initialization.
Current rsnd driver has src.c / dvc.c, and we will have mix.c.
It is readable if these have same named function.
This patch adds rsnd_dvc_initialize_lock/unlock() and make sure 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>

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>

Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC,
and these have similar register. xxxRSR (Software reset Register) is one
of them. These xxxRSR need be set to 1 to 0 when software reset.
Current rsnd driver has src.c / dvc.c, and we will have mix.c.
It is readable if these have same named function.
This patch adds rsnd_src_soft_reset() and make sure 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>

Renesas SCU (Sampling Rate Convert Unit) includes SRC/CTU/MIX/DVC,
and these have similar register. xxxRSR (Software reset Register) is one
of them. These xxxRSR need be set to 1 to 0 when software reset.
Current rsnd driver has src.c / dvc.c, and we will have mix.c.
It is readable if these have same named function.
This patch adds rsnd_dvc_soft_reset() and make sure 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>

rsnd_src_nr() is used only from src.c
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>

rsnd_dvc_nr() is used only from dvc.c
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>

enabling to use same method for exception case is useful.
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>

We couldn't use SRC sync convert mode together with DVC,
but we can use workaround for it.
This patch adds workaround and can use SRC sync convert + DVC
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>

based on datasheet
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>

based on datasheet
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 checkpatch.pl indicates 'out of memory' message is unnecessary.
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>

Current checkpatch.pl indicates 'out of memory' message is unnecessary.
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>

Current checkpatch.pl indicates 'out of memory' message is unnecessary.
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>

using common audio routing path method makes sense.
Let's use snd_soc_of_parse_audio_route/prefix.
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>

rsnd_force_write() is similar to rsnd_write(),
but rsnd_force_write() write data to register even though
it is same value.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

'04700027("ASoC: rsrc-card: cleanup for DPCM")'
cleanuped rsrc-card driver, but then, unused ret was left.
Below warning happen without this patch

${LINUX}/sound/soc/sh/rcar/rsrc-card.c: In function 'rsrc_card_startup':
${LINUX}/sound/soc/sh/rcar/rsrc-card.c:78:6: warning: unused variable \
	'ret' [-Wunused-variable]
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@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>