diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index cbd159163722..c95d423e10bb 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2388,15 +2388,13 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct drm_i915_gem_object *obj = intel_fb_obj(fb); + struct drm_i915_gem_object *obj; int plane = intel_crtc->plane; unsigned long linear_offset; u32 dspcntr; u32 reg = DSPCNTR(plane); int pixel_size; - pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); - if (!intel_crtc->primary_enabled) { I915_WRITE(reg, 0); if (INTEL_INFO(dev)->gen >= 4) @@ -2407,6 +2405,12 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc, return; } + obj = intel_fb_obj(fb); + if (WARN_ON(obj == NULL)) + return; + + pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); + dspcntr = DISPPLANE_GAMMA_ENABLE; dspcntr |= DISPLAY_PLANE_ENABLE; @@ -2510,15 +2514,13 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct drm_i915_gem_object *obj = intel_fb_obj(fb); + struct drm_i915_gem_object *obj; int plane = intel_crtc->plane; unsigned long linear_offset; u32 dspcntr; u32 reg = DSPCNTR(plane); int pixel_size; - pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); - if (!intel_crtc->primary_enabled) { I915_WRITE(reg, 0); I915_WRITE(DSPSURF(plane), 0); @@ -2526,6 +2528,12 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc, return; } + obj = intel_fb_obj(fb); + if (WARN_ON(obj == NULL)) + return; + + pixel_size = drm_format_plane_cpp(fb->pixel_format, 0); + dspcntr = DISPPLANE_GAMMA_ENABLE; dspcntr |= DISPLAY_PLANE_ENABLE; |