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Chris Packham 4a8ac5e45c i2c: mpc: Poll for MCF

During some transfers the bus can still be busy when an interrupt is
received. Commit 763778cd79 ("i2c: mpc: Restore reread of I2C status
register") attempted to address this by re-reading MPC_I2C_SR once but
that just made it less likely to happen without actually preventing it.
Instead of a single re-read, poll with a timeout so that the bus is given
enough time to settle but a genuine stuck SCL is still noticed.

Fixes: 1538d82f46 ("i2c: mpc: Interrupt driven transfer")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

2021-07-20 22:32:01 +02:00

algos

i2c: algo: bit: use new macro to specifiy capabilities

2021-01-22 09:59:21 +01:00

busses

i2c: mpc: Poll for MCF

2021-07-20 22:32:01 +02:00

muxes

i2c: muxes: i2c-arb-gpio-challenge: Demote non-conformant kernel-doc headers

2021-05-27 21:29:03 +02:00

i2c-boardinfo.c

i2c: Remove support for dangling device properties