On 11/11/2016 02:57 AM, Jan Glauber wrote: > > we can reproduce the problem on our side, but I don't have direct access > to a MIPS system so I'm still just guessing what happens. If you want > you can try the attached patches. > > I'm trying to get rid of the polling around the interrupt altogether. > It works fine on Thunderx, sometimes I run into an interrupt timeout > after a lost-arbitration but recovery/retry is able to clean that up. > > Please also revert 70121f7 as before. The last patch adds some debugging > output to see if we run into timeouts or recovery. > Using your three patches without reverting 70121f7 fails on both 71xx and 78xx boards. Paul's "[PATCH 1/2] i2c: octeon: Fix register access" eliminates the i2c probe hang and both boards boot properly. Tested on top of Linus' v4.9-rc4 tag. Steve
