From: "Martin Povišer" <povik+lin@cutebit.org>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
"Sven Peter" <sven@svenpeter.dev>,
"Hector Martin" <marcan@marcan.st>,
linux-kernel@vger.kernel.org,
"Mark Kettenis" <kettenis@openbsd.org>,
"Martin Povišer" <povik+lin@cutebit.org>
Subject: [RFC PATCH 0/5] Apple Macs machine-level ASoC driver
Date: Thu, 31 Mar 2022 02:04:44 +0200 [thread overview]
Message-ID: <20220331000449.41062-1-povik+lin@cutebit.org> (raw)
Hi,
I put together a machine-level ASoC driver for recent Apple Macs (the
ones with ARM64 SoCs) and want to gauge opinions.
Commit 1 is the binding. It is some subset of simple-audio-card with
the extra distinction of allowing multiple CPU/CODEC DAIs per a DAI
link. I want to draw special attention to the issue of describing
speaker topologies. The way it now works is that the driver expects
the speakers to be declared in a fixed order in the sound-dai= list.
This populates a topology the driver expects on a particular machine
model. Mark (in CC) has made the suggestion of keeping the topology
descriptions with the codec nodes themselves in some generic manner,
akin to how sound-name-prefix= already helps identify codecs to the
user.
Commit 2 adds a new ASoC card method (filter_controls) to let the card
prevent some codec kcontrols from being visible to userspace. For example
the TAS2770 speaker amp driver would be happy to expose TDM slot selection
and ISENSE/VSENSE enables which is ridiculous. I am all ears on how to
make the patch acceptable to upstream.
Commit 3 makes ASoC tolerate N-to-M DAI links, not sure what the right
(simple) approach should be there. Commit 4 adds some utility function
and commit 5 is the driver itself.
Let me know what you think.
Martin
Martin Povišer (5):
dt-bindings: sound: Add Apple Macs sound system
HACK: ASoC: Add card->filter_controls hook
HACK: ASoC: Tolerate N-cpus-to-M-codecs links
ASoC: Introduce snd_soc_of_get_dai_link_cpus
ASoC: Add macaudio machine driver
.../bindings/sound/apple,macaudio.yaml | 103 +++
include/sound/soc.h | 7 +
sound/soc/apple/Kconfig | 10 +
sound/soc/apple/Makefile | 3 +
sound/soc/apple/macaudio.c | 597 ++++++++++++++++++
sound/soc/soc-core.c | 125 +++-
sound/soc/soc-dapm.c | 34 +-
sound/soc/soc-pcm.c | 3 +
8 files changed, 860 insertions(+), 22 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/apple,macaudio.yaml
create mode 100644 sound/soc/apple/Kconfig
create mode 100644 sound/soc/apple/Makefile
create mode 100644 sound/soc/apple/macaudio.c
--
2.33.0
next reply other threads:[~2022-03-31 0:06 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-31 0:04 Martin Povišer [this message]
2022-03-31 0:04 ` [RFC PATCH 1/5] dt-bindings: sound: Add Apple Macs sound system Martin Povišer
2022-03-31 0:04 ` [RFC PATCH 2/5] HACK: ASoC: Add card->filter_controls hook Martin Povišer
2022-03-31 11:34 ` Mark Brown
2022-03-31 0:04 ` [RFC PATCH 3/5] HACK: ASoC: Tolerate N-cpus-to-M-codecs links Martin Povišer
2022-04-04 12:28 ` Mark Brown
2022-04-22 14:06 ` Martin Povišer
2022-04-25 12:25 ` Mark Brown
2022-04-25 12:34 ` Martin Povišer
2022-04-25 12:55 ` Mark Brown
2022-04-25 13:11 ` Martin Povišer
2022-04-25 13:46 ` Mark Brown
2022-04-25 13:55 ` Martin Povišer
2022-03-31 0:04 ` [RFC PATCH 4/5] ASoC: Introduce snd_soc_of_get_dai_link_cpus Martin Povišer
2022-03-31 0:04 ` [RFC PATCH 5/5] ASoC: Add macaudio machine driver Martin Povišer
2022-03-31 11:59 ` Mark Brown
[not found] ` <4651D426-BA1A-418F-90E5-278C705DA984@cutebit.org>
2022-03-31 12:56 ` Mark Brown
2022-03-31 12:34 ` [RFC PATCH 0/5] Apple Macs machine-level ASoC driver Mark Brown
2022-03-31 13:28 ` Hector Martin
2022-03-31 14:33 ` Mark Brown
[not found] ` <CCE4A06E-6D6F-457D-B3C5-C36209BF38D3@cutebit.org>
2022-03-31 14:18 ` Mark Brown
[not found] ` <6D199EAB-FE14-4030-96A7-2E0E89D25FAB@cutebit.org>
2022-03-31 15:36 ` Mark Brown
2022-04-22 10:43 ` Martin Povišer
2022-04-22 11:19 ` Mark Brown
2022-04-22 11:28 ` Martin Povišer
2022-04-22 11:33 ` Mark Brown
2022-04-22 11:44 ` Martin Povišer
2022-04-22 12:22 ` Mark Brown
2022-04-22 12:36 ` Martin Povišer
2022-04-22 12:44 ` Mark Brown
2022-04-22 12:53 ` Martin Povišer
2022-04-22 13:06 ` Mark Brown
2022-04-22 13:59 ` Martin Povišer
2022-04-05 9:31 ` (subset) " Mark Brown
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