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Re: Regression: at24 eeprom writing

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On 2015-10-03 01:05, Peter Rosin wrote:
> I looked around and found that if I revert a839ce663b3183209fdf7b1fc4796bfe2a4679c3
> "eeprom: at24: extend driver to allow writing via i2c_smbus_write_byte_data"
> eeprom writing starts working again.
> 
> AFAICT, the i2c-at91 bus driver makes the eeprom driver use the
> i2c_transfer code path both with that patch and with it reverted,
> so I sadly don't see why the patch makes a difference.

And now when I retry the same thing, that patch is no longer affecting things.
I must have confused myself over what kernel was actually running. Christian,
please accept my deepest apologies for implicating you in this regression.

But the regression is still there. In short, linux-3.18-at91 from the
linux4sam tree works, linux-4.1-at91 from the same tree does not, and
vanilla 4.2 also doesn't work. I have a hard time bisecting this thing
though, since the last known good version has a long list of atmel
patches that I refuse to even try to rebase...

Ideas still welcome of course.

Cheers,
Peter
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Thread

Regression: at24 eeprom writing Peter Rosin <peda@lysator.liu.se> - 2015-10-03 01:10 +0200
  Re: Regression: at24 eeprom writing Peter Rosin <peda@lysator.liu.se> - 2015-10-04 22:00 +0200
    Re: Regression: at24 eeprom writing Christian Gmeiner <christian.gmeiner@gmail.com> - 2015-10-05 08:50 +0200
  Re: Regression: at24 eeprom writing Peter Rosin <peda@lysator.liu.se> - 2015-10-05 10:50 +0200
    Re: Re: Regression: at24 eeprom writing kbuild test robot <lkp@intel.com> - 2015-10-05 11:10 +0200
    Re: Regression: at24 eeprom writing Ludovic Desroches <ludovic.desroches@atmel.com> - 2015-10-05 17:10 +0200
      Re: Regression: at24 eeprom writing Peter Rosin <peda@lysator.liu.se> - 2015-10-05 17:10 +0200
    Re: Regression: at24 eeprom writing Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-10-05 17:30 +0200
      Re: Regression: at24 eeprom writing Peter Rosin <peda@lysator.liu.se> - 2015-10-05 18:00 +0200

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