This patch was tested on i.MX6q sabresd and sabreai development boards. It is a continuation of the work started in the following thread https://www.spinics.net/lists/linux-i2c/msg27340.html Its purpose is to introduce i2c slave and multimaster capabilities to the imx i2c controller driver. Slave mode can be tested using the i2c test EEPROM i2c slave device available in tree. Multimaster can be tested by creating a bus with 1 or more slave devices with 2 masters. For the purpose of this test, a sabreai and sabresd board were hooked together to form a multimaster bus. In this configuration, slave and multimaster configurations can alternatively be stress tested. Some points to note: The patch considers when I2C_SLAVE support is not enabled but introduces unused data structs and members even in this case. This can still probably be cleaned up further but it is left this way to reduce the number of conditional code in the driver. Furthermore the state machine introduced to handle the slave states does not handle the master mode behavior. This is also done in order to allow an evolutionary change to the driver. A future update can integrate the master entirely into the statemachine. Any constructive comments would be greatly appreciated. Thank you Joshua Frkuska (1): i2c: imx: add slave support drivers/i2c/busses/i2c-imx.c | 724 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 694 insertions(+), 30 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
