From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH 14/31] drm/i915: display pll hw state
 readout and checking
Date: Wed, 12 Jun 2013 16:39:14 +0300
Message-ID: <20130612133914.GR5004@intel.com>
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To: Damien Lespiau <damien.lespiau@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

On Wed, Jun 12, 2013 at 02:31:23PM +0100, Damien Lespiau wrote:
> On Wed, Jun 05, 2013 at 01:34:16PM +0200, Daniel Vetter wrote:
> > @@ -8621,6 +8657,17 @@ static void intel_cpu_pll_init(struct drm_device=
 *dev)
> >  		intel_ddi_pll_init(dev);
> >  }
> >  =

> > +static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_pri=
v,
> > +				      struct intel_shared_dpll *pll,
> > +				      struct intel_dpll_hw_state *hw_state)
> > +{
> > +	uint32_t val;
> > +
> > +	val =3D I915_READ(PCH_DPLL(pll->id));
> > +
> > +	return val & DPLL_VCO_ENABLE;
> > +}
> > +
> =

> Don't we want !!(val & DPLL_VCO_ENABLE) here? we're comparing this to 0
> and 1.

bool is always 0 or 1.

-- =

Ville Syrj=E4l=E4
Intel OTC