DRA718: I2C Slave mode on Jacinto 6 needed [Android]

Hi all,

TI SDK does not support the i2c slave mode in Linux driver. [1]

However, the i2c framework in the kernel has support for slave drivers.

You need to write an i2c slave driver and implement the callbacks which wil be triggered upon messages sent for the emulated slave.

[2] shows an example of this.

Important part if is the controller driver supports slave mode or not. [3] is reference implementation for slave controller driver.

You will have to read through TRM to understand how to confifure the i2c controller in slave mode and how to interpret the different slave events.

After writitng so much, I found there was an attempt to implement this, you can find the implementation for TI controller at [5]

[1] https://www.kernel.org/doc/html/latest/i2c/slave-interface.html

[2] https://github.com/torvalds/linux/blob/master/drivers/i2c/i2c-slave-eeprom.c

[3] https://elixir.bootlin.com/linux/v4.6/source/drivers/i2c/busses/i2c-rcar.c#L569

[5] https://patchwork.kernel.org/patch/9135441/

Regards,

Nikhil D