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Groups > linux.kernel > #1488393
| From | Wolfram Sang <wsa@the-dreams.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 5/5] i2c: octeon,thunderx: Limit register access retries |
| Date | 2016-09-21 23:10 +0200 |
| Message-ID | <sjWWd-5EH-1@gated-at.bofh.it> (permalink) |
| References | <sjJFD-5Ct-5@gated-at.bofh.it> <sjJFE-5Ct-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On Wed, Sep 21, 2016 at 08:51:06AM +0200, Jan Glauber wrote: > Do not infinitely retry register readq and writeq operations > in order to not lock up the CPU in case the TWSI gets stuck. > > Return -EIO in case of a failed data read. For all other > cases just return so subsequent operations will fail > and trigger the recovery. > > Signed-off-by: Jan Glauber <jglauber@cavium.com> I didn't really check, but have you considered using readq_poll_timeout() from iopoll.h?
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[PATCH 0/5] i2c: octeon,thunderx: Recovery fixes and improvements Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
[PATCH 1/5] i2c: octeon,thunderx: Fix set SCL recovery function Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
Re: [PATCH 1/5] i2c: octeon,thunderx: Fix set SCL recovery function Wolfram Sang <wsa@the-dreams.de> - 2016-09-21 23:10 +0200
[PATCH 5/5] i2c: octeon,thunderx: Limit register access retries Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
Re: [PATCH 5/5] i2c: octeon,thunderx: Limit register access retries Wolfram Sang <wsa@the-dreams.de> - 2016-09-21 23:10 +0200
[PATCH 4/5] i2c: octeon,thunderx: Check bus state before starting a transaction Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
Re: [PATCH 4/5] i2c: octeon,thunderx: Check bus state before starting a transaction Wolfram Sang <wsa@the-dreams.de> - 2016-09-21 23:00 +0200
[PATCH 3/5] i2c: octeon,thunderx: Fix high-level controller status check Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
Re: [PATCH 3/5] i2c: octeon,thunderx: Fix high-level controller status check Wolfram Sang <wsa@the-dreams.de> - 2016-09-21 23:10 +0200
[PATCH 2/5] i2c: octeon,thunderx: Avoid sending STOP during recovery Jan Glauber <jglauber@cavium.com> - 2016-09-21 09:00 +0200
Re: [PATCH 2/5] i2c: octeon,thunderx: Avoid sending STOP during recovery Wolfram Sang <wsa@the-dreams.de> - 2016-09-21 23:10 +0200
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