mbox series

[v2,0/5] ASoC: pcm179x: Add support for pcm1795 and pcm1796

Message ID 20261016-work-v2-0-9340b9555fbb@amarulasolutions.com
Headers
Series ASoC: pcm179x: Add support for pcm1795 and pcm1796 |

Message

Roman Smrž Oct. 16, 2026, 10:33 a.m. UTC 
This adds support for the PCM1795 and the PCM1796 to the pcm179x driver.

The PCM1795 is register compatible with the PCM1792A, but it encodes two
of the register 18 FMT[2:0] values differently, so the format encoding is
described with a per-codec table instead of the width switches. Only the
PCM1795 has real 32-bit formats; on the PCM1792A and the PCM1796 a 32-bit
container keeps the 24-bit code, as it always has. Left-justified, which
the driver accepted but never programmed, is added on the way.

This series is based on a work done in 2016 by my collegue:
https://lore.kernel.org/all/20160311232856.GC27257@panicking/

---
Changes in v2:
- Added missing entry to spi_ids.
- Added SND_SOC_POSSIBLE_DAIFMT_LEFT_J as supported format.
- Updated description of devicetree bindings commit.
- Link to v1: https://patch.msgid.link/20261002-work-v1-0-f0e53bc7331f@amarulasolutions.com

To: Peter Rosin <peda@lysator.liu.se>
To: Martin Povišer <povik+lin@cutebit.org>
To: Lars-Peter Clausen <lars@metafoo.de>
To: Nuno Sá <nuno.sa@analog.com>
To: Liam Girdwood <lgirdwood@gmail.com>
To: Mark Brown <broonie@kernel.org>
To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Shenghao Ding <shenghao-ding@ti.com>
To: Kevin Lu <kevin-lu@ti.com>
To: Baojun Xu <baojun.xu@ti.com>
To: Sen Wang <sen@ti.com>
To: Jaroslav Kysela <perex@perex.cz>
To: Takashi Iwai <tiwai@suse.com>
Cc: asahi@lists.linux.dev
Cc: linux-sound@vger.kernel.org
Cc: patches@opensource.cirrus.com
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

---
Michael Trimarchi (2):
      ASoC: dt-bindings: Add ti,pcm1795 and ti,pcm1796
      ASoC: pcm179x: Add support for pcm1975

Roman Smrž (3):
      ASoC: pcm179x: Refactor regmap value lookup
      ASoC: pcm179x: Add left-justified formats for pcm1792a
      ASoC: pcm179x: Add compatible string for pcm1796 and spi_ids entry

 .../devicetree/bindings/sound/trivial-codec.yaml   |   2 +
 sound/soc/codecs/pcm179x-i2c.c                     |   2 +
 sound/soc/codecs/pcm179x-spi.c                     |   4 +
 sound/soc/codecs/pcm179x.c                         | 117 +++++++++++++++------
 sound/soc/codecs/pcm179x.h                         |  12 ++-
 5 files changed, 104 insertions(+), 33 deletions(-)
---
base-commit: 2f2f7eeef8b0a1a9b9ca998231419873ccae8d4e
change-id: 20261002-work-705f20b60284

Best regards,
--  
Roman Smrž <roman@amarulasolutions.com>

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