On Thu, Sep 12, 2013 at 01:58:17PM -0300, Paulo Zanoni wrote: > From: Paulo Zanoni <paulo.r.zan...@intel.com> > > Because this PCI config register doesn't exist on Gen5+. > > Signed-off-by: Paulo Zanoni <paulo.r.zan...@intel.com>
Yep. Can't see it in configdb. Actually it's only listed there for CTG and CLN, which I guess makes sense as non-mobile platforms probably don't have backlights. For BLB and ELK it's listed as reserved and RO, so I guess it doesn't hurt to poke it on them. If I'm wrong we could probably slap on an IS_MOBILE() check there too. Older stuff doesn't exist in configdb, so that's as far back as I can go. Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com> > --- > drivers/gpu/drm/i915/i915_suspend.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_suspend.c > b/drivers/gpu/drm/i915/i915_suspend.c > index 70db618..3538370 100644 > --- a/drivers/gpu/drm/i915/i915_suspend.c > +++ b/drivers/gpu/drm/i915/i915_suspend.c > @@ -340,7 +340,9 @@ int i915_save_state(struct drm_device *dev) > struct drm_i915_private *dev_priv = dev->dev_private; > int i; > > - pci_read_config_byte(dev->pdev, LBB, &dev_priv->regfile.saveLBB); > + if (INTEL_INFO(dev)->gen <= 4) > + pci_read_config_byte(dev->pdev, LBB, > + &dev_priv->regfile.saveLBB); > > mutex_lock(&dev->struct_mutex); > > @@ -390,7 +392,9 @@ int i915_restore_state(struct drm_device *dev) > struct drm_i915_private *dev_priv = dev->dev_private; > int i; > > - pci_write_config_byte(dev->pdev, LBB, dev_priv->regfile.saveLBB); > + if (INTEL_INFO(dev)->gen <= 4) > + pci_write_config_byte(dev->pdev, LBB, > + dev_priv->regfile.saveLBB); > > mutex_lock(&dev->struct_mutex); > > -- > 1.8.3.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
