Add a binding and a driver for the I2C IP found in the Socionext SynQuacer SoC, which is essentially a rebranded version of the Fujitsu F_I2C controller. v6: - use i2c_8bit_addr_from_msg() instead of open coding the address generation - switch to generic recovery using minimal helpers to drive the SDA/SCL lines directly - use reinit_completion() and move init_completion() to probe function - replace bus free detection at the end of a transfer with a simple udelay() for 2 clock periods - don't recover on every error - don't call synquacer_i2c_hw_init() from synquacer_i2c_hw_reset(), since it will be always called twice in that case - add patch to sanity check i2c_transfer() arguments in core code (#3) v5: - add Rob's ack to #1 - drop unnecessary 'platform_set_drvdata(pdev, NULL)' in remove path (#2) v4: - clarify binding that only a single interrupt specifier is expected (#1) - check return value of clk_prepare_enable() on probe path (#2) - add Andy's R-b to patch #2 v3: - incorporate more of Andy's review comments (#2), especially regarding the bus speed and clock source handling for ACPI - patch #1 unchanged. v2: - incorporate Andy's review comments (#2) - patch #1 unchanged. Ard Biesheuvel (3): dt-bindings: i2c: add binding for Socionext SynQuacer I2C i2c: add support for Socionext SynQuacer I2C controller i2c: add param sanity check to i2c_transfer() Documentation/devicetree/bindings/i2c/i2c-synquacer.txt | 29 + drivers/i2c/busses/Kconfig | 10 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-synquacer.c | 739 ++++++++++++++++++++ drivers/i2c/i2c-core-base.c | 3 + 5 files changed, 782 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-synquacer.txt create mode 100644 drivers/i2c/busses/i2c-synquacer.c -- 2.15.1
