From: Shawn Guo <shawn.guo@xxxxxxxxxx> It's the second posting of the patches adding I2C driver for ZTE ZX2967 family SoCs. Thanks a lot for Wolfram's review comments on v1 patch, which helps identify issues with NACK handling. Changes for v2: - Add COMPILE_TEST for Kconfig option dependency. - Drop warning message for unsupported SMBus transfer, since the driver will fall back to emulate them via I2C anyway. - Kill ZX2967_I2C_FUNCS define by returning I2C_FUNC_XXX directly. - Drop error message for i2c_add_numbered_adapter() check, since the core will do the reporting. - Drop the error checking from zx2967_i2c_reset_hardware() which is useless now, and add it into irq handler for proper NACK handling. Baoyou Xie (2): dt: bindings: add documentation for zx2967 family i2c controller i2c: zx2967: add i2c controller driver for ZTE's zx2967 family .../devicetree/bindings/i2c/i2c-zx2967.txt | 22 + drivers/i2c/busses/Kconfig | 9 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-zx2967.c | 609 +++++++++++++++++++++ 4 files changed, 641 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-zx2967.txt create mode 100644 drivers/i2c/busses/i2c-zx2967.c -- 1.9.1