Commit Graph

387 Commits

Author SHA1 Message Date
Thierry Reding
868d5c6340
ASoC: tegra: Set driver name explicitly
The SoC sound core will generate a driver name by normalizing the card
name. However, most of the time that name does not tell anything about
the driver and is therefore useless for this purpose.

Make the driver name more useful by setting it explicitly during card
initialization.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20210330180657.1867971-1-thierry.reding@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-31 13:52:48 +01:00
Dmitry Osipenko
b5571449e6
ASoC: tegra30: ahub: Remove handing of disabled runtime PM
Runtime PM is always available on Tegra since commit 40b2bb1b13
("ARM: tegra: enforce PM requirement"), hence there is no need to
handle the case of a disabled RPM by Tegra drivers. Remove handing
of a disabled runtime PM from Tegra30 AHUB driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-18-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:45 +00:00
Dmitry Osipenko
e2965c2ca1
ASoC: tegra30: ahub: Correct suspend-resume callbacks
Tegra30 AHUB driver always syncs hardware state on a runtime PM resume,
hence there is no needed to re-sync the state on system resume. Replace
the suspend-resume callbacks with a generic helpers which ensure that
AHUB is suspended using RPM callbacks across system suspend-resume.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-17-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:44 +00:00
Dmitry Osipenko
5d956e3cb8
ASoC: tegra30: ahub: Reset global variable
Tegra30 AHUB uses global variable that is never reset by the driver on
a probe failure and on driver removal, meaning that driver will never try
to re-probe and can't be unbound. Make driver to reset the variable.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-16-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:43 +00:00
Dmitry Osipenko
b5f6f781fc
ASoC: tegra30: i2s: Remove handing of disabled runtime PM
Runtime PM is always available on Tegra since commit 40b2bb1b13
("ARM: tegra: enforce PM requirement"), hence there is no need to
handle the case of a disabled RPM by Tegra drivers. Remove handing
of a disabled runtime PM from Tegra30 I2S driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-15-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:42 +00:00
Dmitry Osipenko
52674aef9e
ASoC: tegra30: i2s: Use devm_clk_get()
Use resource-managed variant of clk_get() to simplify code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-14-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:41 +00:00
Dmitry Osipenko
f852e1e4ac
ASoC: tegra30: i2s: Correct driver removal order
Tegra30 I2S driver has a wrong driver removal order, which should be
opposite to the registration order, but it's not. In particular the
runtime PM is disabled in a wrong order. Fix the order.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-13-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:40 +00:00
Dmitry Osipenko
80ec4a4cb3
ASoC: tegra20: i2s: Remove handing of disabled runtime PM
Runtime PM is always available on Tegra since commit 40b2bb1b13
("ARM: tegra: enforce PM requirement"), hence there is no need to
handle the case of a disabled RPM by Tegra drivers. Remove handing
of a disabled runtime PM from Tegra20 I2S driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-12-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:39 +00:00
Dmitry Osipenko
d3c6ef98da
ASoC: tegra20: i2s: Use devm_clk_get()
Use resource-managed variant of clk_get() to simplify code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-11-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:38 +00:00
Dmitry Osipenko
ca6e960ed6
ASoC: tegra20: i2s: Correct driver removal order
Tegra20 I2S driver has a wrong driver removal order, which should be
opposite to the registration order, but it's not. In particular the
runtime PM is disabled in a wrong order. Fix the order.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-10-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:37 +00:00
Dmitry Osipenko
e33fdd9bee
ASoC: tegra20: i2s: Add system level suspend-resume callbacks
Add system level suspend-resume callbacks in order to ensure that I2S
is gated before system is suspended. This puts Tegra20 I2S driver on
par with the Tegra30 I2S driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-9-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:36 +00:00
Dmitry Osipenko
c53b396f0d
ASoC: tegra20: spdif: Remove handing of disabled runtime PM
Runtime PM is always available on Tegra since commit 40b2bb1b13
("ARM: tegra: enforce PM requirement"), hence there is no need to
handle the case of a disabled RPM by Tegra drivers. Remove handing
of a disabled runtime PM from Tegra20 SPDIF driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-8-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:35 +00:00
Dmitry Osipenko
0911f154a2
ASoC: tegra20: spdif: Correct driver removal order
Tegra20 SPDIF driver has a wrong driver removal order, which should be
opposite to the registration order, but it's not. In particular the
runtime PM is disabled in a wrong order. Fix the order.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-7-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:35 +00:00
Dmitry Osipenko
050086eb6d
ASoC: tegra30: ahub: Switch to use reset-bulk API
Switch to use reset-bulk API in order to make code cleaner.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-6-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:34 +00:00
Dmitry Osipenko
0bbcecaaab
ASoC: tegra30: i2s: Restore hardware state on runtime PM resume
Tegra30 I2S driver syncs regmap cache only on resume from system suspend,
but hardware is reset across the runtime suspend because RPM of the parent
AHUB driver resets the I2S hardware, hence h/w state is lost after each
RPM resume. The problem isn't visible because hardware happens to be fully
reprogrammed after each RPM resume. Move hardware syncing to RPM resume in
order to restore h/w state properly.

Fixes: ed9ce1ed22 ("ASoC: tegra: ahub: Reset hardware properly")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-4-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:32 +00:00
Dmitry Osipenko
9c648ef82d
ASoC: tegra20: i2s: Add reset control
The I2S reset may be asserted at a boot time, in particular this is the
case on Tegra20 AC100 netbook. Tegra20 I2S driver doesn't manage the
reset control and currently it happens to work because reset is implicitly
deasserted by the tegra-clk driver when I2S clock is enabled. The I2S
permanently stays in a reset once tegra-clk is fixed to not touch the
resets, which it shouldn't be doing. Add reset control to the Tegra20
I2S driver.

Note that I2S reset was always specified in Tegra20 device-tree, hence
DTB ABI changes aren't required.

Tested-by: Paul Fertser <fercerpav@gmail.com> # T20 AC100
Reported-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-3-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:31 +00:00
Dmitry Osipenko
a46b78247b
ASoC: tegra20: ac97: Add reset control
Tegra20 AC97 driver doesn't manage the AC97 controller reset, relying on
implicit deassertion of the reset by tegra-clk driver, which needs to be
fixed since this behaviour is unacceptable by other Tegra drivers. Add
explicit reset control to the Tegra20 AC97 driver.

Note that AC97 reset was always specified in Tegra20 device-tree, hence
DTB ABI changes aren't required.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210314154459.15375-2-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-18 13:49:30 +00:00
Sameer Pujar
0d7475d2a5
ASoC: tegra: Add driver remove() callback
There is cleanup required, related to release of phandles, during driver
removal and hence point remove callback to audio_graph_remove().

Fixes: 202e2f7745 ("ASoC: tegra: Add audio graph based card driver")
Depends-on: "ASoC: audio-graph: Rename functions needed for export"
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1612719418-5858-3-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-02-08 11:39:51 +00:00
Sameer Pujar
6e4ea8aace
ASoC: audio-graph: Rename functions needed for export
Following functions are renamed for a better global visibility.
  graph_card_probe() --> audio_graph_card_probe()
  graph_parse_of()   --> audio_graph_parse_of()
  graph_remove()     --> audio_graph_remove() [exported as well]

The references of these are updated in audio graph and Tegra audio
graph card drivers.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1612719418-5858-2-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-02-08 11:39:50 +00:00
Geert Uytterhoeven
e86caa011c
ASoC: tegra: SND_SOC_TEGRA_AUDIO_GRAPH_CARD should depend on SND_SOC_TEGRA
Audio Graph Card based Tegra driver is only useful on NVIDIA Tegra SoCs.
Hence add a dependency on SND_SOC_TEGRA, to prevent asking the user
about this driver when configuring a kernel without Tegra sound support.

Wrap all Tegra sound config options inside a big if/endif block, instead
of just adding the dependency to the single config option that does not
have it yet, to preventing similar future mistakes.

Fixes: 202e2f7745 ("ASoC: tegra: Add audio graph based card driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20210129125915.2652952-1-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-02-01 13:19:46 +00:00
Dmitry Osipenko
ed9ce1ed22
ASoC: tegra: ahub: Reset hardware properly
Assert hardware resets before clocks are enabled and then de-assert them
after clocks are enabled. This brings hardware into a predictable state.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30 audio works
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30 boot-tested
Tested-by: Dmitry Osipenko <digetx@gmail.com> # Nexus7 T30 audio works
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # TK1 boot-tested
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210120003154.26749-7-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-25 17:17:55 +00:00
Dmitry Osipenko
6d8ac9b1dd
ASoC: tegra: ahub: Use clk_bulk helpers
Use clk_bulk helpers to make code cleaner.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30 audio works
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30 boot-tested
Tested-by: Dmitry Osipenko <digetx@gmail.com> # Nexus7 T30 audio works
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # TK1 boot-tested
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210120003154.26749-6-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-25 17:17:54 +00:00
Dmitry Osipenko
24a41a38dd
ASoC: tegra: ahub: Add missing resets
AHUB driver misses D_AUDIO and APBIF resets. CPU hangs on trying to
access hardware if resets aren't de-asserted. This problem is currently
masked by the tegra-clk driver which implicitly de-asserts the resets when
the corresponding clocks are enabled. Soon the implicit de-assertion will
be gone from the tegra-clk driver, thus we need to fix the AHUB driver.
Add the missing resets to the driver.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30 audio works
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30 boot-tested
Tested-by: Dmitry Osipenko <digetx@gmail.com> # Nexus7 T30 audio works
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # TK1 boot-tested
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210120003154.26749-5-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-25 17:17:53 +00:00
Kuninori Morimoto
c6d152a8de
ASoC: tegra: sync parameter naming (rate/sample_bits)
This patch syncs naming rule.

 - xxx_rates;
 + xxx_rate;

 - xxx_samplebits;
 + xxx_sample_bits;

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87o8hqoli4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-21 12:37:49 +00:00
Mark Brown
6b050d45a6
Merge series "Tegra210 audio graph card" from Sameer Pujar <spujar@nvidia.com>:
This series adds audio graph based sound card support for Tegra210
platforms like Jetson-TX1 an Jetson-Nano. The following preparatory
audio graph enhancement series is already merged.
 * https://patchwork.kernel.org/project/alsa-devel/list/?series=375629&state=*

Following are the summary of changes:
 * Add graph/audio-graph based schemas or schema updates for Tegra210
   component and machine drivers.
 * Add Tegra audio graph machine driver.
 * Add required DT support for Jetson-TX1/Nano.

This work is based on earlier discussion of DPCM usage for Tegra
and simple card driver updates.
 * https://lkml.org/lkml/2020/4/30/519
 * https://lkml.org/lkml/2020/6/27/4

Original v6 series was sent about 6-7 weeks back. The dependency commit,
https://lore.kernel.org/alsa-devel/1610948585-16286-1-git-send-email-spujar@nvidia.com/
is now merged. Resending this now to appear in the top of the mail list.

Changelog
=========

v5 -> v6
--------
 * Added ports or port description in YAML docs for Tegra AHUB
   devices and graph card in patch 1/6 and 2/6. Reference of
   audio-graph-port.yaml is used for AHUB devices.
 * Dropped redundant NULL check return for of_device_get_match_data()
   in patch 3/6.
 * Added 'Reviewed-by' tag from Jon Hunter.
 * No changes in remaining patches.

v4 -> v5
--------
 * Audio graph related changes were sent in separate v5 series as
   mentioned above and are dropped from current series.
 * Graph and audio graph doc patches are dropped from this series
   and are sent separately as mentioned above.
 * Minor change with phandle label for TX1 and Nano platform DT files.
 * No changes in other patches.

v3 -> v4
--------
 * Added new patches to convert graph.txt and audio-graph-card.txt
   to corresponding json-schema files. Later these references
   are used in Tegra audio graph schema.

 * AHUB component binding docs are updated to reflect the usage
   of ports/port/endpoint

 * More common stuff is moved into graph_parse_of() and this is
   used by both generic and Tegra audio graph.

 * DT binding for Tegra audio graph is updated to included "ports { }"

 * As per the suggestion 'void *data' member is dropped from
   'asoc_simple_priv' and instead container method is used to
   maintain required custom data internal to Tegra audio graph.

v2 -> v3
--------
 * Dropped new compatible addition in generic graph driver
   after reviewing it with Morimoto-san. Instead added Tegra
   audio graph driver and new compatibles are added in the same.
 * Added new patches to expose new members for customization
   in audio graph driver.
 * Added new patch for Tegra audio graph driver and related
   documentation.
 * Minor change in below commit where mutex version of helper is used
   "ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM"
 * DT binding is updated to use the newly exposed compatibles
 * No changes in other patches

v1 -> v2
--------
 * Re-organized ports/endpoints description for ADMAIF and XBAR.
   Updated DT patches accordingly.
 * After above change, multiple Codec endpoint support is not
   required and hence dropped for now. This will be considered
   separately if at all required in future.
 * Re-ordered patches in the series.

Sameer Pujar (6):
  ASoC: dt-bindings: tegra: Add graph bindings
  ASoC: dt-bindings: tegra: Add json-schema for Tegra audio graph card
  ASoC: tegra: Add audio graph based card driver
  arm64: defconfig: Enable Tegra audio graph card driver
  arm64: tegra: Audio graph header for Tegra210
  arm64: tegra: Audio graph sound card for Jetson Nano and TX1

 .../sound/nvidia,tegra-audio-graph-card.yaml       | 187 +++++++++++++++
 .../bindings/sound/nvidia,tegra186-dspk.yaml       |  18 +-
 .../bindings/sound/nvidia,tegra210-admaif.yaml     |  13 +-
 .../bindings/sound/nvidia,tegra210-ahub.yaml       |  13 +-
 .../bindings/sound/nvidia,tegra210-dmic.yaml       |  18 +-
 .../bindings/sound/nvidia,tegra210-i2s.yaml        |  18 +-
 .../boot/dts/nvidia/tegra210-audio-graph.dtsi      | 153 ++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 262 +++++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 146 ++++++++++++
 arch/arm64/configs/defconfig                       |   1 +
 sound/soc/tegra/Kconfig                            |   9 +
 sound/soc/tegra/Makefile                           |   2 +
 sound/soc/tegra/tegra_audio_graph_card.c           | 251 ++++++++++++++++++++
 13 files changed, 1085 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-audio-graph.dtsi
 create mode 100644 sound/soc/tegra/tegra_audio_graph_card.c

--
2.7.4
2021-01-19 16:20:13 +00:00
Sameer Pujar
202e2f7745
ASoC: tegra: Add audio graph based card driver
Add Tegra audio machine driver which is based on generic audio graph card
driver. It re-uses most of the common stuff from audio graph driver and
uses the same DT binding. Required Tegra specific customizations are done
in the driver and additional DT bindings are required for clock handling.

Details on the customizations done:

 - Update PLL rates at runtime: Tegra HW supports multiple sample rates
   (multiples of 8x and 11.025x) and both of these groups require different
   PLL rates. Hence there is a requirement to update this at runtime.
   This is achieved by providing a custom 'snd_soc_ops' and in hw_param()
   callback PLL rate is updated as per the sample rate.

 - Internal structure 'tegra_audio_graph_data' is used to maintain clock
   handles of PLL.

 - The 'force_dpcm' flag is set to use DPCM for all DAI links.

 - The 'component_chaining' flag is set to use DPCM with component model.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/1611048496-24650-4-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-19 14:09:21 +00:00
Takashi Iwai
7cc206bff6
ASoC: tegra: Simplify with dma_set_mask_and_coherent()
ASoC tegra PCM code still has explicit calls of dma_set_mask() and
dma_set_coherent_mask().

Let's simplify with dma_set_mask_and_coherent().

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210114133337.1039-4-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-19 14:06:12 +00:00
Jon Hunter
34d3daba23
ASoC: tegra: Don't warn on probe deferral
Deferred probe is an expected return value for snd_soc_register_card().
Given that the driver deals with it properly, there's no need to output
a warning that may potentially confuse users.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20201111103245.152189-1-jonathanh@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-11 12:35:10 +00:00
Tom Rix
0246c6cb24
ASoC: tegra: remove unneeded semicolon
A semicolon is not needed after a switch statement.

Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20201101172412.2306144-1-trix@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-03 13:19:05 +00:00
Michał Mirosław
ec6869b096
ASoC: tegra20-spdif: remove "default m"
Make tegra20-spdif default to N as all other drivers do.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Fixes: 774fec338b ("ASoC: Tegra: Implement SPDIF CPU DAI")
Link: https://lore.kernel.org/r/8756eb5aac561173aa222c9cb64dd314ab1b1f9b.1603925200.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-30 12:56:13 +00:00
Qinglang Miao
27f41dfebf
ASoC: tegra: trimslice.c: use devm_snd_soc_register_card()
Using devm_snd_soc_register_card() can make the code
shorter and cleaner.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200929112939.47661-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-01 20:28:17 +01:00
Qinglang Miao
c859926abc
ASoC: tegra: tegra_rt5640: use devm_snd_soc_register_card()
Using devm_snd_soc_register_card() can make the code
shorter and cleaner.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200929112936.47441-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-01 20:28:15 +01:00
Qinglang Miao
1b59b99577
ASoC: tegra: tegra_wm8753: use devm_snd_soc_register_card()
Using devm_snd_soc_register_card() can make the code
shorter and cleaner.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200929112938.47599-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-01 20:28:13 +01:00
Qinglang Miao
f8eeca97f7
ASoC: tegra: tegra_max98090: use devm_snd_soc_register_card()
Using devm_snd_soc_register_card() can make the code
shorter and cleaner.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200929112935.47035-1-miaoqinglang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-01 20:28:12 +01:00
Takashi Iwai
823279c374
ASoC: tegra: tegra210_i2s: Fix compile warning with CONFIG_PM=n
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_i2s.c:167:12: warning: 'tegra210_i2s_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_i2s.c:179:12: warning: 'tegra210_i2s_runtime_resume' defined but not used [-Wunused-function]

Fixes: c0bfa98349 ("ASoC: tegra: Add Tegra210 based I2S driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-6-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03 16:17:08 +01:00
Takashi Iwai
7543f16a04
ASoC: tegra: tegra210_dmic: Fix compile warning with CONFIG_PM=n
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_dmic.c:43:12: warning: 'tegra210_dmic_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_dmic.c:55:12: warning: 'tegra210_dmic_runtime_resume' defined but not used [-Wunused-function]

Fixes: 8c8ff982e9 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-5-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03 16:17:07 +01:00
Takashi Iwai
fafac55960
ASoC: tegra: tegra210_ahub: Fix compile warning with CONFIG_PM=n
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_ahub.c:567:12: warning: 'tegra_ahub_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_ahub.c:579:12: warning: 'tegra_ahub_runtime_resume' defined but not used [-Wunused-function]

Fixes: 16e1bcc2ca ("ASoC: tegra: Add Tegra210 based AHUB driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-4-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03 16:17:06 +01:00
Takashi Iwai
1337f2c5f1
ASoC: tegra: tegra210_admaif: Fix compile warning with CONFIG_PM=n
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_admaif.c:232:12: warning: 'tegra_admaif_runtime_resume' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_ahub.c:567:12: warning: 'tegra_ahub_runtime_suspend' defined but not used [-Wunused-function]

Fixes: f74028e159 ("ASoC: tegra: Add Tegra210 based ADMAIF driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-3-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03 16:17:05 +01:00
Takashi Iwai
b191f01a37
ASoC: tegra: tegra186_dspk: Fix compile warning with CONFIG_PM=n
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra186_dspk.c:74:12: warning: 'tegra186_dspk_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra186_dspk.c:86:12: warning: 'tegra186_dspk_runtime_resume' defined but not used [-Wunused-function]

Fixes: 327ef64702 ("ASoC: tegra: Add Tegra186 based DSPK driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-2-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03 16:17:04 +01:00
Mark Brown
d1e2a97b36
Merge series "ASoC: add asoc_substream_to_rtd() macro" from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:
Hi Mark

Many ASoC drivers are getting rtd from substream by

	rtd = substream->private_data

OTOH, we have snd_pcm_substream_chip() macro for it.

	#define snd_pcm_substream_chip(substream) ((substream)->private_data)

But, both are not understandable for reader.
This patch adds new asoc_substream_to_rtd() which is easy to understand.

These are not important, but for readable code.

Kuninori Morimoto (29):
  ASoC: soc-xxx: add asoc_substream_to_rtd()
  ASoC: ux500: use asoc_substream_to_rtd()
  ASoC: ti: use asoc_substream_to_rtd()
  ASoC: tegra: use asoc_substream_to_rtd()
  ASoC: sunxi: use asoc_substream_to_rtd()
  ASoC: stm: use asoc_substream_to_rtd()
  ASoC: sof: use asoc_substream_to_rtd()
  ASoC: sh: use asoc_substream_to_rtd()
  ASoC: samsung: use asoc_substream_to_rtd()
  ASoC: pxa: use asoc_substream_to_rtd()
  ASoC: cirrus: use asoc_substream_to_rtd()
  ASoC: rockchip: use asoc_substream_to_rtd()
  ASoC: amd: use asoc_substream_to_rtd()
  ASoC: fsl: use asoc_substream_to_rtd()
  ASoC: mediatek: use asoc_substream_to_rtd()
  ASoC: atmel: use asoc_substream_to_rtd()
  ASoC: qcom: use asoc_substream_to_rtd()
  ASoC: dwc: use asoc_substream_to_rtd()
  ASoC: intel: use asoc_substream_to_rtd()
  ASoC: meson: use asoc_substream_to_rtd()
  ASoC: au1x: use asoc_substream_to_rtd()
  ASoC: bcm: use asoc_substream_to_rtd()
  ASoC: codecs: use asoc_substream_to_rtd()
  ASoC: generic: use asoc_substream_to_rtd()
  ASoC: sprd: use asoc_substream_to_rtd()
  ASoC: kirkwood: use asoc_substream_to_rtd()
  ASoC: xtensa: use asoc_substream_to_rtd()
  ASoC: mxs: use asoc_substream_to_rtd()
  ASoC: uniphier: use asoc_substream_to_rtd()

 include/sound/soc.h                           |  2 +
 sound/soc/amd/acp-da7219-max98357a.c          | 12 ++--
 sound/soc/amd/acp-pcm-dma.c                   |  2 +-
 sound/soc/amd/acp-rt5645.c                    |  2 +-
 sound/soc/amd/acp3x-rt5682-max9836.c          |  8 +--
 sound/soc/amd/raven/acp3x-i2s.c               |  2 +-
 sound/soc/amd/raven/acp3x-pcm-dma.c           |  6 +-
 sound/soc/atmel/atmel-classd.c                |  8 +--
 sound/soc/atmel/atmel-pcm-dma.c               |  4 +-
 sound/soc/atmel/atmel-pcm-pdc.c               |  2 +-
 sound/soc/atmel/atmel-pdmic.c                 | 10 +--
 sound/soc/atmel/atmel_wm8904.c                |  2 +-
 sound/soc/au1x/db1200.c                       |  2 +-
 sound/soc/au1x/dbdma2.c                       |  2 +-
 sound/soc/au1x/dma.c                          |  2 +-
 sound/soc/bcm/bcm63xx-pcm-whistler.c          | 12 ++--
 sound/soc/bcm/cygnus-pcm.c                    | 16 ++---
 sound/soc/cirrus/edb93xx.c                    |  2 +-
 sound/soc/cirrus/snappercl15.c                |  2 +-
 sound/soc/codecs/rt5677-spi.c                 |  4 +-
 sound/soc/dwc/dwc-pcm.c                       |  2 +-
 sound/soc/fsl/eukrea-tlv320.c                 |  2 +-
 sound/soc/fsl/fsl-asoc-card.c                 |  2 +-
 sound/soc/fsl/fsl_asrc_dma.c                  |  4 +-
 sound/soc/fsl/fsl_dma.c                       |  2 +-
 sound/soc/fsl/fsl_spdif.c                     | 10 +--
 sound/soc/fsl/fsl_ssi.c                       |  8 +--
 sound/soc/fsl/imx-audmix.c                    |  6 +-
 sound/soc/fsl/imx-mc13783.c                   |  2 +-
 sound/soc/fsl/mpc5200_dma.c                   |  8 +--
 sound/soc/fsl/mpc5200_psc_i2s.c               |  2 +-
 sound/soc/fsl/mpc8610_hpcd.c                  |  2 +-
 sound/soc/fsl/mx27vis-aic32x4.c               |  2 +-
 sound/soc/fsl/p1022_ds.c                      |  2 +-
 sound/soc/fsl/p1022_rdk.c                     |  2 +-
 sound/soc/fsl/wm1133-ev1.c                    |  2 +-
 sound/soc/generic/simple-card-utils.c         |  6 +-
 sound/soc/intel/atom/sst-mfld-platform-pcm.c  |  6 +-
 sound/soc/intel/baytrail/sst-baytrail-pcm.c   | 16 ++---
 sound/soc/intel/boards/bdw-rt5650.c           |  2 +-
 sound/soc/intel/boards/bdw-rt5677.c           |  4 +-
 sound/soc/intel/boards/broadwell.c            |  2 +-
 sound/soc/intel/boards/bxt_rt298.c            |  2 +-
 sound/soc/intel/boards/byt-rt5640.c           |  2 +-
 sound/soc/intel/boards/bytcht_da7213.c        |  4 +-
 sound/soc/intel/boards/bytcr_rt5640.c         |  2 +-
 sound/soc/intel/boards/bytcr_rt5651.c         |  2 +-
 sound/soc/intel/boards/cht_bsw_max98090_ti.c  |  2 +-
 sound/soc/intel/boards/cht_bsw_nau8824.c      |  2 +-
 sound/soc/intel/boards/cht_bsw_rt5645.c       |  2 +-
 sound/soc/intel/boards/cht_bsw_rt5672.c       |  2 +-
 sound/soc/intel/boards/cml_rt1011_rt5682.c    |  4 +-
 sound/soc/intel/boards/ehl_rt5660.c           |  2 +-
 sound/soc/intel/boards/glk_rt5682_max98357a.c |  2 +-
 sound/soc/intel/boards/haswell.c              |  2 +-
 sound/soc/intel/boards/kbl_da7219_max98927.c  |  8 +--
 sound/soc/intel/boards/kbl_rt5660.c           |  2 +-
 sound/soc/intel/boards/kbl_rt5663_max98927.c  |  4 +-
 .../intel/boards/kbl_rt5663_rt5514_max98927.c |  4 +-
 .../soc/intel/boards/skl_nau88l25_max98357a.c |  2 +-
 sound/soc/intel/boards/skl_nau88l25_ssm4567.c |  2 +-
 sound/soc/intel/boards/skl_rt286.c            |  2 +-
 sound/soc/intel/boards/sof_da7219_max98373.c  |  2 +-
 sound/soc/intel/boards/sof_maxim_common.c     |  4 +-
 sound/soc/intel/boards/sof_pcm512x.c          |  4 +-
 sound/soc/intel/boards/sof_rt5682.c           |  4 +-
 sound/soc/intel/boards/sof_sdw_rt1308.c       |  2 +-
 sound/soc/intel/boards/sof_wm8804.c           |  2 +-
 sound/soc/intel/haswell/sst-haswell-pcm.c     | 12 ++--
 sound/soc/intel/keembay/kmb_platform.c        |  2 +-
 sound/soc/intel/skylake/skl-pcm.c             |  8 +--
 sound/soc/kirkwood/armada-370-db.c            |  2 +-
 sound/soc/mediatek/common/mtk-afe-fe-dai.c    | 12 ++--
 .../mediatek/common/mtk-afe-platform-driver.c |  2 +-
 sound/soc/mediatek/mt2701/mt2701-afe-pcm.c    |  2 +-
 sound/soc/mediatek/mt2701/mt2701-cs42448.c    |  2 +-
 sound/soc/mediatek/mt2701/mt2701-wm8960.c     |  2 +-
 sound/soc/mediatek/mt6797/mt6797-afe-pcm.c    |  4 +-
 sound/soc/mediatek/mt8173/mt8173-afe-pcm.c    |  2 +-
 sound/soc/mediatek/mt8173/mt8173-max98090.c   |  2 +-
 .../mediatek/mt8173/mt8173-rt5650-rt5514.c    |  2 +-
 .../mediatek/mt8173/mt8173-rt5650-rt5676.c    |  2 +-
 sound/soc/mediatek/mt8173/mt8173-rt5650.c     |  2 +-
 sound/soc/mediatek/mt8183/mt8183-afe-pcm.c    |  4 +-
 .../mediatek/mt8183/mt8183-da7219-max98357.c  |  8 +--
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c   | 12 ++--
 sound/soc/meson/axg-card.c                    |  2 +-
 sound/soc/meson/gx-card.c                     |  2 +-
 sound/soc/meson/meson-card-utils.c            |  2 +-
 sound/soc/meson/meson-codec-glue.c            |  2 +-
 sound/soc/mxs/mxs-sgtl5000.c                  |  2 +-
 sound/soc/pxa/brownstone.c                    |  2 +-
 sound/soc/pxa/corgi.c                         |  4 +-
 sound/soc/pxa/hx4700.c                        |  2 +-
 sound/soc/pxa/imote2.c                        |  2 +-
 sound/soc/pxa/magician.c                      |  6 +-
 sound/soc/pxa/mmp-pcm.c                       |  2 +-
 sound/soc/pxa/poodle.c                        |  4 +-
 sound/soc/pxa/pxa2xx-i2s.c                    |  2 +-
 sound/soc/pxa/spitz.c                         |  4 +-
 sound/soc/pxa/tosa.c                          |  2 +-
 sound/soc/pxa/z2.c                            |  2 +-
 sound/soc/pxa/zylonite.c                      |  2 +-
 sound/soc/qcom/apq8096.c                      |  2 +-
 sound/soc/qcom/lpass-platform.c               | 14 ++---
 sound/soc/qcom/qdsp6/q6asm-dai.c              |  6 +-
 sound/soc/qcom/qdsp6/q6routing.c              |  2 +-
 sound/soc/qcom/sdm845.c                       | 14 ++---
 sound/soc/qcom/storm.c                        |  2 +-
 sound/soc/rockchip/rk3288_hdmi_analog.c       |  2 +-
 sound/soc/rockchip/rk3399_gru_sound.c         |  8 +--
 sound/soc/rockchip/rockchip_i2s.c             |  2 +-
 sound/soc/rockchip/rockchip_max98090.c        |  2 +-
 sound/soc/rockchip/rockchip_rt5645.c          |  2 +-
 sound/soc/samsung/aries_wm8994.c              |  4 +-
 sound/soc/samsung/arndale.c                   |  4 +-
 sound/soc/samsung/h1940_uda1380.c             |  2 +-
 sound/soc/samsung/i2s.c                       |  2 +-
 sound/soc/samsung/jive_wm8750.c               |  2 +-
 sound/soc/samsung/littlemill.c                |  2 +-
 sound/soc/samsung/neo1973_wm8753.c            |  8 +--
 sound/soc/samsung/odroid.c                    |  6 +-
 sound/soc/samsung/pcm.c                       |  4 +-
 sound/soc/samsung/rx1950_uda1380.c            |  2 +-
 sound/soc/samsung/s3c-i2s-v2.c                |  2 +-
 sound/soc/samsung/s3c24xx_simtec.c            |  2 +-
 sound/soc/samsung/s3c24xx_uda134x.c           |  6 +-
 sound/soc/samsung/smartq_wm8987.c             |  2 +-
 sound/soc/samsung/smdk_spdif.c                |  2 +-
 sound/soc/samsung/smdk_wm8580.c               |  2 +-
 sound/soc/samsung/smdk_wm8994.c               |  2 +-
 sound/soc/samsung/smdk_wm8994pcm.c            |  2 +-
 sound/soc/samsung/snow.c                      |  2 +-
 sound/soc/samsung/spdif.c                     |  6 +-
 sound/soc/samsung/tm2_wm5110.c                |  8 +--
 sound/soc/sh/dma-sh7760.c                     | 12 ++--
 sound/soc/sh/fsi.c                            |  2 +-
 sound/soc/sh/migor.c                          |  4 +-
 sound/soc/sh/rcar/core.c                      |  4 +-
 sound/soc/soc-component.c                     | 20 +++---
 sound/soc/soc-dai.c                           |  8 +--
 sound/soc/soc-dapm.c                          |  6 +-
 sound/soc/soc-generic-dmaengine-pcm.c         |  4 +-
 sound/soc/soc-link.c                          | 12 ++--
 sound/soc/soc-pcm.c                           | 62 +++++++++----------
 sound/soc/soc-utils.c                         |  2 +-
 sound/soc/sof/intel/hda-dai.c                 | 10 +--
 sound/soc/sof/intel/hda-dsp.c                 |  2 +-
 sound/soc/sof/intel/hda-pcm.c                 |  2 +-
 sound/soc/sof/pcm.c                           | 18 +++---
 sound/soc/sprd/sprd-pcm-dma.c                 |  2 +-
 sound/soc/stm/stm32_adfsdm.c                  | 12 ++--
 sound/soc/stm/stm32_sai_sub.c                 |  2 +-
 sound/soc/sunxi/sun4i-codec.c                 | 12 ++--
 sound/soc/sunxi/sun4i-spdif.c                 |  2 +-
 sound/soc/tegra/tegra_alc5632.c               |  2 +-
 sound/soc/tegra/tegra_max98090.c              |  2 +-
 sound/soc/tegra/tegra_rt5640.c                |  2 +-
 sound/soc/tegra/tegra_rt5677.c                |  2 +-
 sound/soc/tegra/tegra_sgtl5000.c              |  2 +-
 sound/soc/tegra/tegra_wm8753.c                |  2 +-
 sound/soc/tegra/tegra_wm8903.c                |  2 +-
 sound/soc/tegra/trimslice.c                   |  2 +-
 sound/soc/ti/davinci-evm.c                    |  6 +-
 sound/soc/ti/davinci-vcif.c                   |  4 +-
 sound/soc/ti/j721e-evm.c                      |  6 +-
 sound/soc/ti/n810.c                           |  4 +-
 sound/soc/ti/omap-abe-twl6040.c               |  4 +-
 sound/soc/ti/omap-mcbsp.c                     |  4 +-
 sound/soc/ti/omap-twl4030.c                   |  2 +-
 sound/soc/ti/omap3pandora.c                   |  2 +-
 sound/soc/ti/osk5912.c                        |  2 +-
 sound/soc/ti/rx51.c                           |  4 +-
 sound/soc/uniphier/aio-dma.c                  |  6 +-
 sound/soc/ux500/mop500_ab8500.c               |  8 +--
 sound/soc/ux500/ux500_pcm.c                   |  2 +-
 sound/soc/xtensa/xtfpga-i2s.c                 |  2 +-
 177 files changed, 397 insertions(+), 395 deletions(-)

--
2.25.1
2020-07-23 19:52:30 +01:00
Sameer Pujar
f9ec176cd6
ASoC: tegra: Fix build error due to 64-by-32 division
Build errors are seen on 32-bit platforms because of a plain 64-by-32
division. For example, following build erros were reported.

"ERROR: modpost: "__udivdi3" [sound/soc/tegra/snd-soc-tegra210-dmic.ko]
 undefined!"
"ERROR: modpost: "__divdi3" [sound/soc/tegra/snd-soc-tegra210-dmic.ko]
 undefined!"

This can be fixed by using div_u64() helper from 'math64.h' header.

Fixes: 8c8ff982e9 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595492011-2411-1-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-23 19:52:25 +01:00
Kuninori Morimoto
95ebd023e1
ASoC: tegra: use asoc_substream_to_rtd()
Now we can use asoc_substream_to_rtd() macro,
let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sgdn0yv1.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-23 19:07:22 +01:00
Mark Brown
43a10bf49f
Merge series "Add ASoC AHUB components for Tegra210 and later" from Sameer Pujar <spujar@nvidia.com>:
Overview
========
Audio Processing Engine (APE) comprises of Audio DMA (ADMA) and Audio
Hub (AHUB) unit. AHUB is a collection of hardware accelerators for audio
pre-processing and post-processing. It also includes a programmable full
crossbar for routing audio data across these accelerators.

This series exposes some of these below mentioned HW devices as ASoC
components for Tegra platforms from Tegra210 onwards.
 * ADMAIF : The interface between ADMA and AHUB
 * XBAR   : Crossbar for routing audio samples across various modules
 * I2S    : Inter-IC Sound Controller
 * DMIC   : Digital Microphone
 * DSPK   : Digital Speaker

Following is the summary of current series.
 * Add YAML DT binding documentation for above mentioned modules.
 * Helper function for ACIF programming is exposed for Tegra210 and later.
 * Add ASoC driver components for each of the above modules.
 * Build ACONNECT and ADMA drivers which are essential to realize audio
   use case.
 * Add DT entries for above components for Tegra210, Tegra186 and
   Tegra194.

As per the suggestion in [0] audio graph based sound card support
is pushed in a separate series.

[0] https://lkml.org/lkml/2020/6/27/4

Changelog
=========

v4 -> v5
--------
 * Common changes
   - simple-card driver changes are dropped. Changes are migrated to audio
     graph card and are moved to a separate series as suggested.

   - '#sound-dai-cells' property is not needed for planned audio graph card
     Hence dropped from documentation and related DT binding of component
     drivers.

   - CIF and DAP DAIs are added for I/O drivers (DMIC, DSPK, I2S) to
     represent DAI links using audio graph card. Similary DAIs are added in
     AHUB driver to describe endpoints in audio crossbar. Routing is updated
     to reflect the same in drivers.

v3 -> v4
--------
 * [1/23] "ASoC: dt-bindings: tegra: Add DT bindings for Tegra210"
   - Removed multiple examples and retained one example per doc
   - Fixed as per inputs on the previous series
   - Tested bindings with 'make dt_binding_check/dtbs_check'

 * [2/23] "ASoC: tegra: Add support for CIF programming"
   - No change

 * Common changes (for patch [3/10] to [7/10])
   - Mixer control overrides, for PCM parameters (rate, channel, bits),
     in each driver are dropped.
   - Updated routing as per DPCM usage
   - Minor changes related to formatting

 * New changes (patch [8/23] to [18/23] and patch [23/23])
   - Based on discussions in following threads DPCM is used for Tegra Audio.
     https://lkml.org/lkml/2020/2/20/91
     https://lkml.org/lkml/2020/4/30/519
   - The simple-card driver is used for Tegra Audio and accordingly
     some enhancements are made in simple-card and core drivers.
   - Patch [8/23] to [18/23] are related to simple-card and core changes.
   - Patch [23/23] adds sound card support to realize complete audio path.
     This is based on simple-card driver with proposed enhancements.
   - Re-ordered patches depending on above

v2 -> v3
--------
 * [1/10]  "dt-bindings: sound: tegra: add DT binding for AHUB
   - Updated licence
   - Removed redundancy w.r.t items/const/enum
   - Added constraints wherever needed with "pattern" property

 * [2/10]  "ASoC: tegra: add support for CIF programming"
   - Removed tegra_cif.c
   - Instead added inline helper function in tegra_cif.h

 * common changes (for patch [3/10] to [7/10])
   - Replace LATE system calls with Normal sleep
   - Remove explicit RPM suspend in driver remove() call
   - Use devm_kzalloc() instead of devm_kcalloc() for single element
   - Replace 'ret' with 'err' for better reading
   - Consistent error printing style across drivers
   - Minor formating fixes

 * [8/10]  "arm64: tegra: add AHUB components for few Tegra chips"
   - no change

 * [9/10]  "arm64: tegra: enable AHUB modules for few Tegra chips"
   - no change

 * [10/10] "arm64: defconfig: enable AHUB components for Tegra210 and later"
   (New patch)
   - Enables ACONNECT and AHUB components. With this AHUB and components are
     registered with ASoC core.

v1 -> v2
--------
 * [1/9] "dt-bindings: sound: tegra: add DT binding for AHUB"
   - no changes

 * [2/9] "ASoC: tegra: add support for CIF programming"
   - removed CIF programming changes for legacy chips.
   - this patch now exposes helper function for CIF programming,
     which can be used on Tegra210 later.
   - later tegra_cif.c can be extended for legacy chips as well.
   - updated commit message accordingly

 * [3/9] "ASoC: tegra: add Tegra210 based DMIC driver"
   - removed unnecessary initialization of 'ret' in probe()

 * [4/9] "ASoC: tegra: add Tegra210 based I2S driver"
   - removed unnecessary initialization of 'ret' in probe()
   - fixed indentation
   - added consistent bracing for if-else clauses
   - updated 'rx_fifo_th' type to 'unsigned int'
   - used BIT() macro for defines like '1 << {x}' in tegra210_i2s.h

 * [5/9] "ASoC: tegra: add Tegra210 based AHUB driver"
   - used of_device_get_match_data() to get 'soc_data' and removed
    explicit of_match_device()
   - used devm_platform_ioremap_resource() and removed explicit
    platform_get_resource()
   - fixed indentation for devm_snd_soc_register_component()
   - updated commit message
   - updated commit message to reflect compatible binding for Tegra186 and
     Tegra194.

 * [6/9] "ASoC: tegra: add Tegra186 based DSPK driver"
   - removed unnecessary initialization of 'ret' in probe()
   - updated 'max_th' to 'unsigned int'
   - shortened lengthy macro names to avoid wrapping in
     tegra186_dspk_wr_reg() and to be consistent

 * [7/9] "ASoC: tegra: add Tegra210 based ADMAIF driver"
   - used of_device_get_match_data() and removed explicit of_match_device()
   - used BIT() macro for defines like '1 << {x}' in tegra210_admaif.h
   - updated commit message to reflect compatible binding for Tegra186 and
     Tegra194.

 * [8/9] "arm64: tegra: add AHUB components for few Tegra chips"
   - no change

 * [9/9] "arm64: tegra: enable AHUB modules for few Tegra chips"
   - no change

 * common changes for patch [3/9] to [7/9]
   - sorted headers in alphabetical order
   - moved MODULE_DEVICE_TABLE() right below *_of_match table
   - removed macro DRV_NAME
   - removed explicit 'owner' field from platform_driver structure
   - added 'const' to snd_soc_dai_ops structure

Sameer Pujar (11):
  ASoC: dt-bindings: tegra: Add DT bindings for Tegra210
  ASoC: tegra: Add support for CIF programming
  ASoC: tegra: Add Tegra210 based DMIC driver
  ASoC: tegra: Add Tegra210 based I2S driver
  ASoC: tegra: Add Tegra210 based AHUB driver
  ASoC: tegra: Add Tegra186 based DSPK driver
  ASoC: tegra: Add Tegra210 based ADMAIF driver
  arm64: defconfig: Build AHUB component drivers
  arm64: defconfig: Build ADMA and ACONNECT driver
  arm64: tegra: Enable ACONNECT, ADMA and AGIC on Jetson Nano
  arm64: tegra: Add DT binding for AHUB components

 .../bindings/sound/nvidia,tegra186-dspk.yaml       |  83 +++
 .../bindings/sound/nvidia,tegra210-admaif.yaml     | 111 +++
 .../bindings/sound/nvidia,tegra210-ahub.yaml       | 136 ++++
 .../bindings/sound/nvidia,tegra210-dmic.yaml       |  83 +++
 .../bindings/sound/nvidia,tegra210-i2s.yaml        | 101 +++
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           | 217 +++++-
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           | 225 +++++-
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts |  12 +
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           | 140 ++++
 arch/arm64/configs/defconfig                       |   8 +
 sound/soc/tegra/Kconfig                            |  56 ++
 sound/soc/tegra/Makefile                           |  10 +
 sound/soc/tegra/tegra186_dspk.c                    | 442 +++++++++++
 sound/soc/tegra/tegra186_dspk.h                    |  70 ++
 sound/soc/tegra/tegra210_admaif.c                  | 800 ++++++++++++++++++++
 sound/soc/tegra/tegra210_admaif.h                  | 162 ++++
 sound/soc/tegra/tegra210_ahub.c                    | 676 +++++++++++++++++
 sound/soc/tegra/tegra210_ahub.h                    | 127 ++++
 sound/soc/tegra/tegra210_dmic.c                    | 455 ++++++++++++
 sound/soc/tegra/tegra210_dmic.h                    |  82 +++
 sound/soc/tegra/tegra210_i2s.c                     | 812 +++++++++++++++++++++
 sound/soc/tegra/tegra210_i2s.h                     | 126 ++++
 sound/soc/tegra/tegra_cif.h                        |  65 ++
 sound/soc/tegra/tegra_pcm.c                        | 235 +++++-
 sound/soc/tegra/tegra_pcm.h                        |  21 +-
 25 files changed, 5251 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml
 create mode 100644 sound/soc/tegra/tegra186_dspk.c
 create mode 100644 sound/soc/tegra/tegra186_dspk.h
 create mode 100644 sound/soc/tegra/tegra210_admaif.c
 create mode 100644 sound/soc/tegra/tegra210_admaif.h
 create mode 100644 sound/soc/tegra/tegra210_ahub.c
 create mode 100644 sound/soc/tegra/tegra210_ahub.h
 create mode 100644 sound/soc/tegra/tegra210_dmic.c
 create mode 100644 sound/soc/tegra/tegra210_dmic.h
 create mode 100644 sound/soc/tegra/tegra210_i2s.c
 create mode 100644 sound/soc/tegra/tegra210_i2s.h
 create mode 100644 sound/soc/tegra/tegra_cif.h

--
2.7.4
2020-07-21 23:44:59 +01:00
Sameer Pujar
f74028e159
ASoC: tegra: Add Tegra210 based ADMAIF driver
ADMAIF is the interface between ADMA and AHUB. Each ADMA channel that
sends/receives data to/from AHUB must intreface through an ADMAIF channel.
ADMA channel sending data to AHUB pairs with an ADMAIF Tx channel and
similarly ADMA channel receiving data from AHUB pairs with an ADMAIF Rx
channel. Buffer size is configurable for each ADMAIF channel, but currently
SW uses default values.

This patch registers ADMAIF driver with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes ADMAIF interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The ADMAIF device can be enabled in the DT via
"nvidia,tegra210-admaif" compatible binding.

Tegra PCM driver is updated to expose required PCM interfaces and
snd_pcm_ops callbacks.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-8-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-21 23:26:14 +01:00
Mark Brown
6b174a49e4
Merge series "Add ASoC AHUB components for Tegra210 and later" from Sameer Pujar <spujar@nvidia.com>:
Overview
========
Audio Processing Engine (APE) comprises of Audio DMA (ADMA) and Audio
Hub (AHUB) unit. AHUB is a collection of hardware accelerators for audio
pre-processing and post-processing. It also includes a programmable full
crossbar for routing audio data across these accelerators.

This series exposes some of these below mentioned HW devices as ASoC
components for Tegra platforms from Tegra210 onwards.
 * ADMAIF : The interface between ADMA and AHUB
 * XBAR   : Crossbar for routing audio samples across various modules
 * I2S    : Inter-IC Sound Controller
 * DMIC   : Digital Microphone
 * DSPK   : Digital Speaker

Following is the summary of current series.
 * Add YAML DT binding documentation for above mentioned modules.
 * Helper function for ACIF programming is exposed for Tegra210 and later.
 * Add ASoC driver components for each of the above modules.
 * Build ACONNECT and ADMA drivers which are essential to realize audio
   use case.
 * Add DT entries for above components for Tegra210, Tegra186 and
   Tegra194.

As per the suggestion in [0] audio graph based sound card support
is pushed in a separate series.

[0] https://lkml.org/lkml/2020/6/27/4

Changelog
=========

v4 -> v5
--------
 * Common changes
   - simple-card driver changes are dropped. Changes are migrated to audio
     graph card and are moved to a separate series as suggested.

   - '#sound-dai-cells' property is not needed for planned audio graph card
     Hence dropped from documentation and related DT binding of component
     drivers.

   - CIF and DAP DAIs are added for I/O drivers (DMIC, DSPK, I2S) to
     represent DAI links using audio graph card. Similary DAIs are added in
     AHUB driver to describe endpoints in audio crossbar. Routing is updated
     to reflect the same in drivers.

v3 -> v4
--------
 * [1/23] "ASoC: dt-bindings: tegra: Add DT bindings for Tegra210"
   - Removed multiple examples and retained one example per doc
   - Fixed as per inputs on the previous series
   - Tested bindings with 'make dt_binding_check/dtbs_check'

 * [2/23] "ASoC: tegra: Add support for CIF programming"
   - No change

 * Common changes (for patch [3/10] to [7/10])
   - Mixer control overrides, for PCM parameters (rate, channel, bits),
     in each driver are dropped.
   - Updated routing as per DPCM usage
   - Minor changes related to formatting

 * New changes (patch [8/23] to [18/23] and patch [23/23])
   - Based on discussions in following threads DPCM is used for Tegra Audio.
     https://lkml.org/lkml/2020/2/20/91
     https://lkml.org/lkml/2020/4/30/519
   - The simple-card driver is used for Tegra Audio and accordingly
     some enhancements are made in simple-card and core drivers.
   - Patch [8/23] to [18/23] are related to simple-card and core changes.
   - Patch [23/23] adds sound card support to realize complete audio path.
     This is based on simple-card driver with proposed enhancements.
   - Re-ordered patches depending on above

v2 -> v3
--------
 * [1/10]  "dt-bindings: sound: tegra: add DT binding for AHUB
   - Updated licence
   - Removed redundancy w.r.t items/const/enum
   - Added constraints wherever needed with "pattern" property

 * [2/10]  "ASoC: tegra: add support for CIF programming"
   - Removed tegra_cif.c
   - Instead added inline helper function in tegra_cif.h

 * common changes (for patch [3/10] to [7/10])
   - Replace LATE system calls with Normal sleep
   - Remove explicit RPM suspend in driver remove() call
   - Use devm_kzalloc() instead of devm_kcalloc() for single element
   - Replace 'ret' with 'err' for better reading
   - Consistent error printing style across drivers
   - Minor formating fixes

 * [8/10]  "arm64: tegra: add AHUB components for few Tegra chips"
   - no change

 * [9/10]  "arm64: tegra: enable AHUB modules for few Tegra chips"
   - no change

 * [10/10] "arm64: defconfig: enable AHUB components for Tegra210 and later"
   (New patch)
   - Enables ACONNECT and AHUB components. With this AHUB and components are
     registered with ASoC core.

v1 -> v2
--------
 * [1/9] "dt-bindings: sound: tegra: add DT binding for AHUB"
   - no changes

 * [2/9] "ASoC: tegra: add support for CIF programming"
   - removed CIF programming changes for legacy chips.
   - this patch now exposes helper function for CIF programming,
     which can be used on Tegra210 later.
   - later tegra_cif.c can be extended for legacy chips as well.
   - updated commit message accordingly

 * [3/9] "ASoC: tegra: add Tegra210 based DMIC driver"
   - removed unnecessary initialization of 'ret' in probe()

 * [4/9] "ASoC: tegra: add Tegra210 based I2S driver"
   - removed unnecessary initialization of 'ret' in probe()
   - fixed indentation
   - added consistent bracing for if-else clauses
   - updated 'rx_fifo_th' type to 'unsigned int'
   - used BIT() macro for defines like '1 << {x}' in tegra210_i2s.h

 * [5/9] "ASoC: tegra: add Tegra210 based AHUB driver"
   - used of_device_get_match_data() to get 'soc_data' and removed
    explicit of_match_device()
   - used devm_platform_ioremap_resource() and removed explicit
    platform_get_resource()
   - fixed indentation for devm_snd_soc_register_component()
   - updated commit message
   - updated commit message to reflect compatible binding for Tegra186 and
     Tegra194.

 * [6/9] "ASoC: tegra: add Tegra186 based DSPK driver"
   - removed unnecessary initialization of 'ret' in probe()
   - updated 'max_th' to 'unsigned int'
   - shortened lengthy macro names to avoid wrapping in
     tegra186_dspk_wr_reg() and to be consistent

 * [7/9] "ASoC: tegra: add Tegra210 based ADMAIF driver"
   - used of_device_get_match_data() and removed explicit of_match_device()
   - used BIT() macro for defines like '1 << {x}' in tegra210_admaif.h
   - updated commit message to reflect compatible binding for Tegra186 and
     Tegra194.

 * [8/9] "arm64: tegra: add AHUB components for few Tegra chips"
   - no change

 * [9/9] "arm64: tegra: enable AHUB modules for few Tegra chips"
   - no change

 * common changes for patch [3/9] to [7/9]
   - sorted headers in alphabetical order
   - moved MODULE_DEVICE_TABLE() right below *_of_match table
   - removed macro DRV_NAME
   - removed explicit 'owner' field from platform_driver structure
   - added 'const' to snd_soc_dai_ops structure

Sameer Pujar (11):
  ASoC: dt-bindings: tegra: Add DT bindings for Tegra210
  ASoC: tegra: Add support for CIF programming
  ASoC: tegra: Add Tegra210 based DMIC driver
  ASoC: tegra: Add Tegra210 based I2S driver
  ASoC: tegra: Add Tegra210 based AHUB driver
  ASoC: tegra: Add Tegra186 based DSPK driver
  ASoC: tegra: Add Tegra210 based ADMAIF driver
  arm64: defconfig: Build AHUB component drivers
  arm64: defconfig: Build ADMA and ACONNECT driver
  arm64: tegra: Enable ACONNECT, ADMA and AGIC on Jetson Nano
  arm64: tegra: Add DT binding for AHUB components

 .../bindings/sound/nvidia,tegra186-dspk.yaml       |  83 +++
 .../bindings/sound/nvidia,tegra210-admaif.yaml     | 111 +++
 .../bindings/sound/nvidia,tegra210-ahub.yaml       | 136 ++++
 .../bindings/sound/nvidia,tegra210-dmic.yaml       |  83 +++
 .../bindings/sound/nvidia,tegra210-i2s.yaml        | 101 +++
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           | 217 +++++-
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           | 225 +++++-
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts |  12 +
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           | 140 ++++
 arch/arm64/configs/defconfig                       |   8 +
 sound/soc/tegra/Kconfig                            |  56 ++
 sound/soc/tegra/Makefile                           |  10 +
 sound/soc/tegra/tegra186_dspk.c                    | 442 +++++++++++
 sound/soc/tegra/tegra186_dspk.h                    |  70 ++
 sound/soc/tegra/tegra210_admaif.c                  | 800 ++++++++++++++++++++
 sound/soc/tegra/tegra210_admaif.h                  | 162 ++++
 sound/soc/tegra/tegra210_ahub.c                    | 676 +++++++++++++++++
 sound/soc/tegra/tegra210_ahub.h                    | 127 ++++
 sound/soc/tegra/tegra210_dmic.c                    | 455 ++++++++++++
 sound/soc/tegra/tegra210_dmic.h                    |  82 +++
 sound/soc/tegra/tegra210_i2s.c                     | 812 +++++++++++++++++++++
 sound/soc/tegra/tegra210_i2s.h                     | 126 ++++
 sound/soc/tegra/tegra_cif.h                        |  65 ++
 sound/soc/tegra/tegra_pcm.c                        | 235 +++++-
 sound/soc/tegra/tegra_pcm.h                        |  21 +-
 25 files changed, 5251 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml
 create mode 100644 sound/soc/tegra/tegra186_dspk.c
 create mode 100644 sound/soc/tegra/tegra186_dspk.h
 create mode 100644 sound/soc/tegra/tegra210_admaif.c
 create mode 100644 sound/soc/tegra/tegra210_admaif.h
 create mode 100644 sound/soc/tegra/tegra210_ahub.c
 create mode 100644 sound/soc/tegra/tegra210_ahub.h
 create mode 100644 sound/soc/tegra/tegra210_dmic.c
 create mode 100644 sound/soc/tegra/tegra210_dmic.h
 create mode 100644 sound/soc/tegra/tegra210_i2s.c
 create mode 100644 sound/soc/tegra/tegra210_i2s.h
 create mode 100644 sound/soc/tegra/tegra_cif.h

--
2.7.4
2020-07-20 15:34:33 +01:00
Randy Dunlap
e1b4a53df2
ASoC: tegra20_das.h: delete duplicated words
Delete the doubled word "to" in two comments.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200719180912.30770-1-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:34:28 +01:00
Sameer Pujar
327ef64702
ASoC: tegra: Add Tegra186 based DSPK driver
The Digital Speaker Controller (DSPK) converts the multi-bit Pulse Code
Modulation (PCM) audio input to oversampled 1-bit Pulse Density Modulation
(PDM) output. From the signal flow perpsective, the DSPK can be viewed as
a PDM transmitter that up-samples the input to the desired sampling rate
by interpolation then converts the oversampled PCM input to the desired
1-bit output via Delta Sigma Modulation (DSM).

This patch registers DSPK component with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes DSPK interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The DSPK devices can be enabled in the DT via
"nvidia,tegra186-dspk" compatible binding. This driver can be used
on Tegra194 chip as well.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-7-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:10:24 +01:00
Sameer Pujar
16e1bcc2ca
ASoC: tegra: Add Tegra210 based AHUB driver
The Audio Hub (AHUB) comprises a collection of hardware accelerators for
audio pre/post-processing and a programmable full crossbar (XBAR) for
routing audio data across these accelerators in time and in parallel.
AHUB supports multiple interfaces to I2S, DSPK, DMIC etc., XBAR is a
switch used to configure or modify audio routing between HW accelerators
present inside AHUB.

This patch registers AHUB component with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes AHUB interfaces, which can be used to connect different
components in the ASoC layer. Currently the driver takes care of XBAR
programming to allow audio data flow through various clients of the AHUB.
Makefile and Kconfig support is added to allow to build the driver. The
AHUB component can be enabled in the DT via below compatible bindings.
  - "nvidia,tegra210-ahub" for Tegra210
  - "nvidia,tegra186-ahub" for Tegra186 and Tegra194

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-6-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:10:23 +01:00
Sameer Pujar
c0bfa98349
ASoC: tegra: Add Tegra210 based I2S driver
The Inter-IC Sound (I2S) controller implements full-duplex, bi-directional
and single direction point to point serial interface. It can interface
with I2S compatible devices. Tegra I2S controller can operate as both
master and slave.

This patch registers I2S controller with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes I2S interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The I2S devices can be enabled in the DT via
"nvidia,tegra210-i2s" compatible binding.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-5-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:10:23 +01:00
Sameer Pujar
8c8ff982e9
ASoC: tegra: Add Tegra210 based DMIC driver
The Digital MIC (DMIC) Controller is used to interface with Pulse Density
Modulation (PDM) input devices. The DMIC controller implements a converter
to convert PDM signals to Pulse Code Modulation (PCM) signals. From signal
flow perspective, the DMIC can be viewed as a PDM receiver.

This patch registers DMIC component with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes DMIC interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The DMIC devices can be enabled in the DT via
"nvidia,tegra210-dmic" compatible string. This driver can be used for
Tegra186 and Tegra194 chips as well.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-4-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:10:22 +01:00