On Thu, Feb 14, 2013 at 05:30:12PM -0200, Paulo Zanoni wrote: > Hi > > 2013/1/18 <ville.syrjala at linux.intel.com>: > > From: Ville Syrj?l? <ville.syrjala at linux.intel.com> > > > > HSW no longer has the PIPECONF bit for limited range RGB output. > > Instead the pipe CSC unit must be used to perform that task. > > > > The CSC pre offset are set to 0, since the incoming data is full > > [0:255] range RGB, the coefficients are programmed to compress the > > data into [0:219] range, and then we use either the CSC_MODE black > > screen offset bit, or the CSC post offsets to shift the data to > > the correct [16:235] range. > > > > Also have to change the confiuration of all planes so that the > > data is sent through the pipe CSC unit. For simplicity send the > > plane data through the pipe CSC unit always, and in case full > > range output is requested, the pipe CSC unit is set up with an > > identity transform to pass the plane data through unchanged. > > > > I've been told by some hardware people that the use of the pipe > > CSC unit shouldn't result in any measurable increase in power > > consumption numbers. > > > > Signed-off-by: Ville Syrj?l? <ville.syrjala at linux.intel.com> > > Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com> Queued for -next, thanks for the patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
