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i2c: octeon: thunderx: Limit register access retries
authorJan Glauber <jglauber@cavium.com>
Fri, 23 Sep 2016 09:40:39 +0000 (11:40 +0200)
committerWolfram Sang <wsa@the-dreams.de>
Sat, 24 Sep 2016 09:22:24 +0000 (11:22 +0200)
commitdf2ff705c791fdf81b5f0ff2401fbca41997b458
tree29d0e13b40b0471d26047c270a78207748624ac7tree | snapshot
parent1cc483ba710623e1b290f5af4f755a9d3a465b9ecommit | diff
i2c: octeon: thunderx: Limit register access retries

Do not infinitely retry register readq and writeq operations
in order to not lock up the CPU in case the TWSI gets stuck.

Return -ETIMEDOUT in case of a failed data read. For all other
cases just return so subsequent operations will fail.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-octeon-core.c diff | blob | history
drivers/i2c/busses/i2c-octeon-core.h diff | blob | history
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