On Wed, 30 Mar 2011 17:07:11 +0100 Chris Wilson <ch...@chris-wilson.co.uk> wrote:
> Once a NAK has been asserted by the slave, we need to reset the GMBUS > controller in order to continue. This is done by asserting the Software > Clear Interrupt bit and then clearing it again to restore operations. > > If we don't clear the NAK, then all future GMBUS xfers will fail, > including DDC probes and EDID retrieval. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35781 > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> > --- This one fixes the issue I was seeing on my HP test machine; LVDS DDC probing seems to work ok once this fix is applied. -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
