[Intel-gfx] [PATCH 3/3] drm/i915: allow PCH PWM override on IVB

[Jesse Barnes]

On Tue, 10 Apr 2012 23:50:45 +0200
Daniel Vetter <daniel at ffwll.ch> wrote:

> On Tue, Apr 10, 2012 at 11:58:05AM -0700, Jesse Barnes wrote:
> > On IVB, there are two sets of panel backlight regs: one in the CPU and
> > one in the PCH.  The CPU ones aren't generally used, so on IVB make sure
> > we allow the PCH regs to actually control the backlight.
> > 
> > Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
> > ---
> >  drivers/gpu/drm/i915/intel_panel.c |   12 ++++++++++++
> >  1 files changed, 12 insertions(+), 0 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
> > index cad45ff..b007c4e 100644
> > --- a/drivers/gpu/drm/i915/intel_panel.c
> > +++ b/drivers/gpu/drm/i915/intel_panel.c
> > @@ -306,6 +306,18 @@ static void intel_panel_init_backlight(struct drm_device *dev)
> >  {
> >  	struct drm_i915_private *dev_priv = dev->dev_private;
> >  
> > +	/*
> > +	 * IVB has CPU eDP backlight regs too, set things up to let the
> > +	 * PCH regs control the backlight
> > +	 */
> > +	if (IS_IVYBRIDGE(dev)) {
> > +		u32 pwm;
> 
> That pwm thing seems unused ...
> -Daniel

Oh yeah we can drop that now.

-- 
Jesse Barnes, Intel Open Source Technology Center
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20120410/43cdcaed/attachment.sig>