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Thu, 09 Jul 2026 15:13:40 -0700 (PDT) Received: from unknown.tail46804.ts.net ([2a02:b023:8011:c993:4bf6:23f5:d942:9d70]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-47f2465ae8bsm869008f8f.36.2026.07.09.15.13.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2026 15:13:40 -0700 (PDT) From: Gianluca Boiano To: Mark Brown , Liam Girdwood , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai Cc: Gianluca Boiano , Shenghao Ding , Kevin Lu , Baojun Xu , linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 0/2] ASoC: codecs: add Texas Instruments TAS2557 smart amplifier driver Date: Fri, 10 Jul 2026 00:13:27 +0200 Message-ID: <20260709221331.989109-1-morf3089@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The TAS2557 is a mono Class-D smart amplifier with an on-chip DSP for speaker protection, controlled over I2C with audio carried over I2S/TDM. The DSP requires a board-specific firmware image generated with TI's PurePath Console tuning tools; without it the device passes no audio. Patch 1 adds the devicetree binding. Patch 2 adds the ASoC codec driver: mono and dual-device stereo operation, per-device ti,channel tuning, and fault-interrupt recovery that reloads the firmware configuration on clock loss, over-current, brownout or over-temperature. Tested in mono configuration on Xiaomi Mi A2 (SDM660, jasmine), Xiaomi Redmi Note 6 Pro (SDM636, tulip) and Xiaomi Redmi 5 Plus (MSM8953, vince), driving the top speaker, and in dual-device stereo configuration on Xiaomi Mi Pad 4 (SDM660, clover). Based on v7.2-rc1. Gianluca Boiano (2): dt-bindings: sound: add Texas Instruments TAS2557 ASoC: codecs: add TAS2557 mono smart amplifier driver .../devicetree/bindings/sound/ti,tas2557.yaml | 123 + MAINTAINERS | 1 + sound/soc/codecs/Kconfig | 11 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tas2557.c | 2476 +++++++++++++++++ sound/soc/codecs/tas2557.h | 218 ++ 6 files changed, 2831 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/ti,tas2557.yaml create mode 100644 sound/soc/codecs/tas2557.c create mode 100644 sound/soc/codecs/tas2557.h base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482 -- 2.55.0