linux-kernel - [PATCH 00/27] ASoC: tas27{64,70}: improve support for Apple codec variants

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Message-Id: <20250215-apple-codec-changes-v1-0-723569b21b19@gmail.com>
Date: Sat, 15 Feb 2025 10:02:33 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>, 
 Baojun Xu <baojun.xu@...com>, Dan Murphy <dmurphy@...com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shi Fu <shifu0704@...ndersoft.com>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Martin Povišer <povik+lin@...ebit.org>, 
 Hector Martin <marcan@...can.st>, linux-sound@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 asahi@...ts.linux.dev, James Calligeros <jcalligeros99@...il.com>, 
 Martin Povišer <povik@...tonmail.com>
Subject: [PATCH 00/27] ASoC: tas27{64,70}: improve support for Apple codec
 variants

Hi all,

This series introduces a number of changes to the drivers for
the Texas Instruments TAS2764 and TAS2770 amplifiers in order to
introduce (and improve in the case of TAS2770) support for the
variants of these amps found in Apple Silicon Macs.

Apple's variant of TAS2764 is known as SN012776, and as always with
Apple is a subtly incompatible variant with a number of quirks. It
is not publicly available. The TAS2770 variant is known as TAS5770L,
and does not require incompatible handling.

Much as with the Cirrus codec patches, I do not
expect that we will get any official acknowledgement that these parts
exist from TI, however I would be delighted to be proven wrong.

This series has been living in the downstream Asahi kernel tree[1]
for over two years, and has been tested by many thousands of users
by this point[2].

Regards,
James

[1] https://github.com/AsahiLinux/linux/tree/asahi-wip
[2] https://stats.asahilinux.org/

---
Hector Martin (14):
      ASoC: tas2764: Enable main IRQs
      ASoC: tas2764: Power up/down amp on mute ops
      ASoC: tas2764: Add SDZ regulator
      ASoC: tas2764: Add reg defaults for TAS2764_INT_CLK_CFG
      ASoC: tas2764: Mark SW_RESET as volatile
      ASoC: tas2764: Fix power control mask
      ASoC: tas2764: Wait for ramp-down after shutdown
      ASoC: tas2770: Add SDZ regulator
      ASoC: tas2770: Power cycle amp on ISENSE/VSENSE change
      ASoC: tas2770: Add zero-fill and pull-down controls
      ASoC: tas2770: Support setting the PDM TX slot
      ASoC: tas2770: Fix volume scale
      ASoC: tas2764: Set the SDOUT polarity correctly
      ASoC: tas2770: Set the SDOUT polarity correctly

James Calligeros (2):
      ASoC: dt-bindings: tas27xx: add compatible for SN012776
      ASoC: dt-bindings: tas2770: add compatible for TAS5770L

Martin Povišer (11):
      ASoC: tas2764: Extend driver to SN012776
      ASoC: tas2764: Add control concerning overcurrent events
      ASoC: tas2770: Factor out set_ivsense_slots
      ASoC: tas2770: Fix and redo I/V sense TDM slot setting logic
      ASoC: tas2764: Reinit cache on part reset
      ASoC: tas2764: Configure zeroing of SDOUT slots
      ASoC: tas2764: Apply Apple quirks
      ASoC: tas2764: Raise regmap range maximum
      ASoC: tas2770: Export 'die_temp' to sysfs
      ASoC: tas2764: Export 'die_temp' to sysfs
      ASoC: tas2764: Crop SDOUT zero-out mask based on BCLK ratio

 .../bindings/sound/ti,tas2770.yaml       |   1 +
 .../bindings/sound/ti,tas27xx.yaml       |   1 +
 sound/soc/codecs/Kconfig                 |   1 +
 sound/soc/codecs/tas2764-quirks.h        | 188 +++++++++++++++
 sound/soc/codecs/tas2764.c               | 302 +++++++++++++++++++++----
 sound/soc/codecs/tas2764.h               |  29 ++-
 sound/soc/codecs/tas2770.c               | 264 +++++++++++++++++----
 sound/soc/codecs/tas2770.h               |  20 ++
 8 files changed, 711 insertions(+), 95 deletions(-)
---
base-commit: cc7708ae5e2aab296203fcec774695fc9d995f48
change-id: 20250214-apple-codec-changes-6e656dc1e24d

Best regards,
-- 
James Calligeros <jcalligeros99@...il.com>