Re: [Intel-gfx] [PATCH 1/4] drm/i915: Actually retry with bit-banging after GMBUS timeout

2016-03-09 Thread Ville Syrjälä
On Mon, Mar 07, 2016 at 07:06:37PM +0200, Jani Nikula wrote: > On Mon, 07 Mar 2016, ville.syrj...@linux.intel.com wrote: > > From: Ville Syrjälä > > > > After the GMBUS transfer times out, we set force_bit=1 and > > return -EAGAIN expecting the i2c core to call the .master_xfer > > hook again so t

Re: [Intel-gfx] [PATCH 1/4] drm/i915: Actually retry with bit-banging after GMBUS timeout

2016-03-07 Thread Jani Nikula
On Mon, 07 Mar 2016, ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > After the GMBUS transfer times out, we set force_bit=1 and > return -EAGAIN expecting the i2c core to call the .master_xfer > hook again so that we will retry the same transfer via bit-banging. > This is in case th

[Intel-gfx] [PATCH 1/4] drm/i915: Actually retry with bit-banging after GMBUS timeout

2016-03-07 Thread ville . syrjala
From: Ville Syrjälä After the GMBUS transfer times out, we set force_bit=1 and return -EAGAIN expecting the i2c core to call the .master_xfer hook again so that we will retry the same transfer via bit-banging. This is in case the gmbus hardware is somehow faulty. Unfortunately we left adapter->r