23 Nov
2017
23 Nov
'17
8:53 p.m.
Quoting Ville Syrjala (2017-11-23 19:41:57)
From: Ville Syrjälä ville.syrjala@linux.intel.com
The hardware always writes one or two bytes in the index portion of an indexed transfer. Make sure the message we send as the index doesn't have a zero length.
Cc: stable@vger.kernel.org Cc: Daniel Kurtz djkurtz@chromium.org Cc: Chris Wilson chris@chris-wilson.co.uk Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Sean Paul seanpaul@chromium.org Fixes: 56f9eac05489 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions") Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson chris@chris-wilson.co.uk -Chris