From: Jun Yan <jerrysteve1101@gmail.com>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Heiko Stuebner <heiko@sntech.de>
Cc: linux-sound@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Jun Yan <jerrysteve1101@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org
Subject: [PATCH v2 0/2] ASoC: codecs: Add Everest ES7202 support
Date: Wed, 21 Oct 2026 20:45:46 +0800 [thread overview]
Message-ID: <20261021124552.767218-1-jerrysteve1101@gmail.com> (raw)
This series adds support for the Everest ES7202, a 2-channel PDM
analog-to-digital converter controlled over I2C. Patch 1 adds the DT
bindings and patch 2 the ASoC codec driver.
The driver is based on the Rockchip BSP driver, reworked for mainline to
use regmap and devm_ helpers, probe the device ID, and report the actual
per-step PGA gain.
Changes in v2:
- Drop the hard-coded 30.75 dB PGA gain from the power-up sequence; the
PGA keeps its power-on default and the capture volume controls apply
the requested gain.
- Keep the PDM outputs muted until a capture stream starts, instead of
unmuting at the end of the init sequence.
- Re-run the power-up sequence on resume before syncing the regmap cache.
- Handle the regulator_get_voltage() error return as an int.
- Drop the unnecessary of_match_ptr().
- Fix the copyright header.
Link to v1: https://lore.kernel.org/linux-sound/20261020143135.623897-1-jerrysteve1101@gmail.com
Jun Yan (2):
dt-bindings: sound: add Everest ES7202
ASoC: codecs: add support for Everest ES7202 PDM ADC
.../bindings/sound/everest,es7202.yaml | 56 +++
sound/soc/codecs/Kconfig | 10 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/es7202.c | 367 ++++++++++++++++++
sound/soc/codecs/es7202.h | 131 +++++++
5 files changed, 566 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/everest,es7202.yaml
create mode 100644 sound/soc/codecs/es7202.c
create mode 100644 sound/soc/codecs/es7202.h
--
2.56.0
next reply other threads:[~2026-10-21 12:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-21 12:45 Jun Yan [this message]
2026-10-21 12:45 ` [PATCH v2 1/2] dt-bindings: sound: add Everest ES7202 Jun Yan
2026-10-21 12:45 ` [PATCH v2 2/2] ASoC: codecs: add support for Everest ES7202 PDM ADC Jun Yan
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