i2c: imx: Add timer for handling the stop condition

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Most IMX I2C interfaces don't generate an interrupt on a stop condition,
so it won't generate a timely stop event on a slave mode transfer.
Some users, like IPMB, need a timely stop event to work properly.

So, add a timer and add the proper handling to generate a stop event in
slave mode if the interface goes idle.

Signed-off-by: Corey Minyard <minyard@acm.org>
Tested-by: Andrew Manley <andrew.manley@sealingtech.com>
Reviewed-by: Andrew Manley <andrew.manley@sealingtech.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Corey Minyard 2021-11-12 07:39:55 -06:00 • committed by Wolfram Sang

parent 77e0164630

commit f89bf95632

1 changed files with 73 additions and 19 deletions

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drivers/i2c/busses/i2c-imx.c

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