i2c: imx: do not poll for bus busy in single master mode

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According to the i.MX8M Mini reference manual chapter "16.1.4.2
Generation of Start" it is only necessary to poll for bus busy and
arbitration lost in multi master mode. This helps to avoid rescheduling
while the i2c bus is busy and avoids SMBus devices to timeout. For
backward compatibility, the single-master property needs to be
explicitly set to disable the bus busy polling.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

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Stefan Eichenberger 2024-10-14 15:15:12 +02:00 • committed by Andi Shyti

parent 6816ce57c4

commit 6692694aca

1 changed files with 13 additions and 2 deletions

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drivers/i2c/busses/i2c-imx.c

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