linux-kernel - [PATCH v1 0/2] riscv: spacemit: add i2c support to K1 SoC

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Message-Id: <20241015075134.1449458-1-TroyMitchell988@gmail.com>
Date: Tue, 15 Oct 2024 15:51:32 +0800
From: Troy Mitchell <troymitchell988@...il.com>
To: andi.shyti@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: troymitchell988@...il.com,
	linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 0/2] riscv: spacemit: add i2c support to K1 SoC

Hi all,

This patch implements I2C driver for the SpacemiT K1 SoC,
providing basic support for I2C read/write communication which
compatible with standard I2C bus specifications.

In this version, the driver defaults to use fast-speed-mode and
interrupts for transmission, and does not support DMA, high-speed mode, or FIFO.

The docs of I2C can be found here, in chapter 16.1 I2C [1]

Link: https://developer.spacemit.com/documentation?token=Rn9Kw3iFHirAMgkIpTAcV2Arnkf#part5 [1]

Troy Mitchell (2):
  dt-bindings: i2c: spacemit: add support for K1 SoC
  i2c: spacemit: add support for SpacemiT K1 SoC

 .../bindings/i2c/spacemit,k1-i2c.yaml         |  59 ++
 drivers/i2c/busses/Kconfig                    |  18 +
 drivers/i2c/busses/Makefile                   |   1 +
 drivers/i2c/busses/i2c-k1.c                   | 694 ++++++++++++++++++
 4 files changed, 772 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-k1.c

-- 
2.34.1