i2c: rcar: in slave mode, clear NACK earlier

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Currently, a NACK in slave mode is set/cleared when SCL is held low by
the IP core right before the bit is about to be pushed out. This is too
late for clearing and then a NACK from the previous byte is still used
for the current one. Now, let's clear the NACK right after we detected
the STOP condition following the NACK.

Fixes: de20d1857d ("i2c: rcar: add slave support")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Wolfram Sang 2020-08-17 14:19:30 +02:00 • committed by Wolfram Sang

parent e4682b8a68

commit 914a7b3563

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drivers/i2c/busses/i2c-rcar.c

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