[Intel-gfx] [PATCH] drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2

[Daniel Vetter]

On Fri, Aug 05, 2016 at 09:43:59AM +0300, Ville Syrjälä wrote:
> On Tue, Aug 02, 2016 at 03:37:27PM +0300, Jani Nikula wrote:
> > On Tue, 02 Aug 2016, ville.syrjala at linux.intel.com wrote:
> > > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > >
> > > The spec was recently fixed to have the correct iboost setting for the
> > > SKL Y/U DP DDI buffer translation table entry 2. Update our tables
> > > to match.
> > >
> > > Cc: David Weinehall <david.weinehall at linux.intel.com>
> > > Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > 
> > Cc: stable at vger.kernel.org
> 
> Added that and pushed to dinq. 
> 
> It looks like've had quite a few updates to these tables slip by w/o
> adding the cc:stable :( Hopefully stable maintainers will notice
> and perhaps pick them all up when they grab this one.

For next time around, you can give stable maintainers explicit hints about
additional patches they need to cherry-pick:

     Cc: <stable at vger.kernel.org> # 3.3.x: a1f84a3: sched: Check for idle
     Cc: <stable at vger.kernel.org> # 3.3.x: 1b9508f: sched: Rate-limit newidle
     Cc: <stable at vger.kernel.org> # 3.3.x: fd21073: sched: Fix affinity logic
     Cc: <stable at vger.kernel.org> # 3.3.x
    Signed-off-by: Ingo Molnar <mingo at elte.hu>

Copied directly fromt he docs even ;-)
-Daniel

> 
> > 
> > > ---
> > >  drivers/gpu/drm/i915/intel_ddi.c | 4 ++--
> > >  1 file changed, 2 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > > index fc2ef2d76091..c55a2ad50c0d 100644
> > > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > > @@ -145,7 +145,7 @@ static const struct ddi_buf_trans skl_ddi_translations_dp[] = {
> > >  static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = {
> > >  	{ 0x0000201B, 0x000000A2, 0x0 },
> > >  	{ 0x00005012, 0x00000088, 0x0 },
> > > -	{ 0x80007011, 0x000000CD, 0x0 },
> > > +	{ 0x80007011, 0x000000CD, 0x1 },
> > >  	{ 0x80009010, 0x000000C0, 0x1 },
> > >  	{ 0x0000201B, 0x0000009D, 0x0 },
> > >  	{ 0x80005012, 0x000000C0, 0x1 },
> > > @@ -158,7 +158,7 @@ static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = {
> > >  static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = {
> > >  	{ 0x00000018, 0x000000A2, 0x0 },
> > >  	{ 0x00005012, 0x00000088, 0x0 },
> > > -	{ 0x80007011, 0x000000CD, 0x0 },
> > > +	{ 0x80007011, 0x000000CD, 0x3 },
> > >  	{ 0x80009010, 0x000000C0, 0x3 },
> > >  	{ 0x00000018, 0x0000009D, 0x0 },
> > >  	{ 0x80005012, 0x000000C0, 0x3 },
> > 
> > -- 
> > Jani Nikula, Intel Open Source Technology Center
> 
> -- 
> Ville Syrjälä
> Intel OTC
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch