linux-kernel - [PATCH v4 0/6] drivers/i2c: Add FSI-attached I2C master algorithm

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Message-Id: <1500302157-14670-1-git-send-email-eajames@linux.vnet.ibm.com>
Date:   Mon, 17 Jul 2017 09:35:51 -0500
From:   Eddie James <eajames@...ux.vnet.ibm.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        wsa@...-dreams.de, robh+dt@...nel.org, gregkh@...uxfoundation.org,
        jk@...abs.org, joel@....id.au, andrew@...id.au,
        eajames@...ux.vnet.ibm.com, cbostic@...ux.vnet.ibm.com,
        "Edward A. James" <eajames@...ibm.com>
Subject: [PATCH v4 0/6] drivers/i2c: Add FSI-attached I2C master algorithm

From: "Edward A. James" <eajames@...ibm.com>

This series adds an algorithm for an I2C master physically located on an FSI
slave device. The I2C master has multiple ports, each of which may be connected
to an I2C slave. Access to the I2C master registers is achieved over FSI bus.

Due to the multi-port nature of the I2C master, the driver instantiates a new
I2C adapter for each port connected to a slave. The connected ports should be
defined in the device tree under the I2C master device.

Changes since v2:
 * None. Not sure how two v2s ended up on the list, sorry.

Changes since v1:
 * Switch "port" to "i2c-bus" for child nodes in the dt.
 * Switch "port" to "reg" dt property.
 * Add example device under i2c-bus node in docs.
 * Set of_node of I2C adapter.
 * Use dynamically allocated numbering for I2C adapters.
 * Remove ida counters; unnecessary.

Edward A. James (6):
  drivers/i2c: Add FSI-attached I2C master algorithm
  drivers/i2c: Add port structure to FSI algorithm
  drivers/i2c: Add transfer implementation for FSI algorithm
  drivers/i2c: Add I2C master locking to FSI algorithm
  drivers/i2c: Add bus recovery for FSI algorithm
  dt-bindings: i2c: Add FSI-attached I2C master dt binding documentation

 Documentation/devicetree/bindings/i2c/i2c-fsi.txt |  40 ++
 drivers/i2c/busses/Kconfig                        |  11 +
 drivers/i2c/busses/Makefile                       |   1 +
 drivers/i2c/busses/i2c-fsi.c                      | 637 ++++++++++++++++++++++
 4 files changed, 689 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-fsi.txt
 create mode 100644 drivers/i2c/busses/i2c-fsi.c

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1.8.3.1