diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_suspend.c | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index ac0d1a73ac22..60a5800fba6e 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -600,14 +600,16 @@ void i915_save_display(struct drm_device *dev) } /* FIXME: save TV & SDVO state */ - /* FBC state */ - if (IS_GM45(dev)) { - dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE); - } else { - dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE); - dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE); - dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2); - dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL); + /* Only save FBC state on the platform that supports FBC */ + if (I915_HAS_FBC(dev)) { + if (IS_GM45(dev)) { + dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE); + } else { + dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE); + dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE); + dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2); + dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL); + } } /* VGA state */ @@ -702,18 +704,19 @@ void i915_restore_display(struct drm_device *dev) } /* FIXME: restore TV & SDVO state */ - /* FBC info */ - if (IS_GM45(dev)) { - g4x_disable_fbc(dev); - I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); - } else { - i8xx_disable_fbc(dev); - I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE); - I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE); - I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2); - I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL); + /* only restore FBC info on the platform that supports FBC*/ + if (I915_HAS_FBC(dev)) { + if (IS_GM45(dev)) { + g4x_disable_fbc(dev); + I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); + } else { + i8xx_disable_fbc(dev); + I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE); + I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE); + I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2); + I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL); + } } - /* VGA state */ if (IS_IRONLAKE(dev)) I915_WRITE(CPU_VGACNTRL, dev_priv->saveVGACNTRL); |