From: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org>
To: Junyi Zhao <junyi.zhao@amlogic.com>,
Andi Shyti <andi.shyti@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Xianwei Zhao <xianwei.zhaol@amlogic.com>
Cc: Junyi Zhao <junyi.zhaol@amlogic.com>,
linux-i2c@vger.kernel.org, linux-amlogic@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Xianwei Zhao <xianwei.zhao@amlogic.com>,
Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH v4 0/2] i2c: Add driver support Amlogic A9 I2C
Date: Mon, 02 Nov 2026 07:48:04 +0000 [thread overview]
Message-ID: <20261102-a9-i2c-v4-0-5a169215b8e9@amlogic.com> (raw)
Add a Device Tree binding and driver for the I2C controller found on the
Amlogic A9 SoC.
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
---
Changes in v4:
- Repocess xfer len equal 0 use I2C_AQ_NO_ZERO_LEN, and Optimized the function.
- Disable A9_RX_THRESH_READ/A9_TX_THRESH_WRITE enables of irq when xfer timeout.
- Use guard(spinlock_irqsave) instead for direct call spinlock in xfer timeout process.
- Link to v3: https://lore.kernel.org/r/20261029-a9-i2c-v3-0-7b30ccc00533@amlogic.com
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 | 431 +++++++++++++++++++++
5 files changed, 505 insertions(+)
---
base-commit: 4ec2365c08de306f52650d8736aef5862baedb8d
change-id: 20260911-a9-i2c-24478e22e683
Best regards,
--
Xianwei Zhao <xianwei.zhao@amlogic.com>
_______________________________________________
linux-amlogic mailing list
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http://lists.infradead.org/mailman/listinfo/linux-amlogic
next reply other threads:[~2026-11-02 7:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 7:48 Xianwei Zhao via B4 Relay [this message]
2026-11-02 7:48 ` [PATCH v4 1/2] dt-bindings: i2c: add Amlogic A9 I2C controller Xianwei Zhao via B4 Relay
2026-11-02 7:48 ` [PATCH v4 2/2] i2c: amlogic: Add Amlogic A9 I2C controller driver Xianwei Zhao via B4 Relay
2026-11-02 8:08 ` sashiko-bot
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