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Thu, 29 Oct 2026 08:33:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793262819; bh=BzARfS5/7dLSqXJF9f5MKXR4suI8wxogQ9p/0F1+hbM=; h=From:Subject:Date:To:Cc:Reply-To; b=AuGsWiB5bRI1ncZL5tGug+tgBNrP208cBdoWTqBXkem/LEWcK1FH2yn92JqBCS2nl YsuEQlBqkNw1g4uUtsIYeABf/xcUL+LZbZyRNGSIdvtBUm9PwrDSUsv0M8MDIf3IKx NKXRcw7e1aP2UoJNcwBdRNuw/phz8QtSIJrc7NZvfRusQ6/hAoZisZIiEnGtOBbGo3 3/0ooFFNlNyLgTd7hqmF3JKpTxQg1Dt3nVEdLUH8cNei+RWtMfs2m6OGSsmjAhlS1b TI4Bq1XUMWZPFXmAvbgdGqMJFYVKoiMrhfRbElJqH89GxoKhUlUGajCWvL9jCa4E5M Fjzyp53eJUcVA== Received: from nexus.subspace.kernel.org (localhost [IPv6:::1]) by lkml.kernel.org (Postfix) with ESMTP id 18FEB4579B; Thu, 29 Oct 2026 08:33:38 +0000 (UTC) From: Xianwei Zhao via B4 Relay Subject: [PATCH v3 0/2] i2c: Add driver support Amlogic A9 I2C Date: Thu, 29 Oct 2026 08:33:30 +0000 Message-Id: <20261029-a9-i2c-v3-0-7b30ccc00533@amlogic.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIANsE42oC/1WNwQ6DIBAFf8VwLq2sqNhT/6PpAXBRkooNGGNj/ PeCaU16fMsMs5KA3mIg12wlHmcb7OjiKE4Z0b10HVLbxk0ghypvGKOyoRY0Bc5rgQBYiYJEWMm AVHnpdJ/wiFwS5nCZ0vPLo7HL3rk/4u5tmEb/3rMzS9dvAfivMDOaUyVk2yheGS7FTQ7PsbP6r MeBpE9mOESWAxwiRJGXWGg0rC6V+Re3bfsA4HZeDPYAAAA= X-Change-ID: 20260911-a9-i2c-24478e22e683 To: Junyi Zhao , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Xianwei Zhao Cc: Junyi Zhao , linux-i2c@vger.kernel.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Xianwei Zhao X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1793262816; l=1553; i=xianwei.zhao@amlogic.com; s=20251216; h=from:subject:message-id; bh=kkji73amQnq/o1U1e1LnkN9YbZJt+h7urd8kw2klnlM=; b=sdgJZWmkoNDUdFU37ska6hHqgSroWpJqdJP7CwvquZDnoSuEOtJ+JHnvI8tt18KjrxbGC4riL zy3S4uoc8XiClZwNiCggHZj7xmNILDpBED5zvCcWhyrl72+ZmMGNIG4 X-Developer-Key: i=xianwei.zhao@amlogic.com; a=ed25519; pk=dWwxtWCxC6FHRurOmxEtr34SuBYU+WJowV/ZmRJ7H+k= X-Endpoint-Received: by B4 Relay for xianwei.zhao@amlogic.com/20251216 with auth_id=578 X-Original-From: Xianwei Zhao Reply-To: xianwei.zhao@amlogic.com Add a Device Tree binding and driver for the I2C controller found on the Amlogic A9 SoC. Signed-off-by: Xianwei Zhao --- Changes in v3: - Based on the questions raised by the robot, the data flow was reorganized. - Some processing was optimized according to Andi's and Markus's suggestions. - Link to v2: https://lore.kernel.org/r/20261022-a9-i2c-v2-0-45e3cef175bf@amlogic.com Changes in v2: - dtbinding: make some minor modifications, suggestted by Conor and robot. - driver: Make some adjustments, including macro definitions, format adjustments, adding quirks, process optimization, and so on. According to Andi and robot's suggestion - Give up MAINTAINERS file the separate submission, make it together with the driver. - Link to v1: https://lore.kernel.org/r/20260924-a9-i2c-v1-0-b8ad9b46f4a8@amlogic.com --- Junyi Zhao (1): i2c: amlogic: Add Amlogic A9 I2C controller driver Xianwei Zhao (1): dt-bindings: i2c: add Amlogic A9 I2C controller .../devicetree/bindings/i2c/amlogic,a9-i2c.yaml | 56 +++ MAINTAINERS | 9 + drivers/i2c/busses/Kconfig | 8 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-amlogic-a9.c | 445 +++++++++++++++++++++ 5 files changed, 519 insertions(+) --- base-commit: 4ec2365c08de306f52650d8736aef5862baedb8d change-id: 20260911-a9-i2c-24478e22e683 Best regards, -- Xianwei Zhao