diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 261ffe47a5d..97d28013db7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2865,14 +2865,18 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); } + /* + * On ILK+ LUT must be loaded before the pipe is running but with + * clocks enabled + */ + intel_crtc_load_lut(crtc); + intel_enable_pipe(dev_priv, pipe, is_pch_port); intel_enable_plane(dev_priv, plane, pipe); if (is_pch_port) ironlake_pch_enable(crtc); - intel_crtc_load_lut(crtc); - mutex_lock(&dev->struct_mutex); intel_update_fbc(dev); mutex_unlock(&dev->struct_mutex); @@ -4469,7 +4473,8 @@ static void intel_update_watermarks(struct drm_device *dev) static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) { - return dev_priv->lvds_use_ssc && i915_panel_use_ssc; + return dev_priv->lvds_use_ssc && i915_panel_use_ssc + && !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE); } /** @@ -8140,6 +8145,15 @@ static void quirk_pipea_force (struct drm_device *dev) DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); } +/* + * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason + */ +static void quirk_ssc_force_disable(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE; +} + struct intel_quirk { int device; int subsystem_vendor; @@ -8168,6 +8182,9 @@ struct intel_quirk intel_quirks[] = { /* 855 & before need to leave pipe A & dpll A up */ { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, + + /* Lenovo U160 cannot use SSC on LVDS */ + { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, }; static void intel_init_quirks(struct drm_device *dev) |