Merge branch 'v3.10/topic/misc' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c714d4d5bedbf07c7b5aad2f827251d85153f267..8814b0dbfc4f714d867303d4fbd0f4077f1e7ff3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5225,7 +5225,7 @@ static void intel_set_pipe_csc(struct drm_crtc *crtc)
                uint16_t postoff = 0;
 
                if (intel_crtc->config.limited_color_range)
-                       postoff = (16 * (1 << 13) / 255) & 0x1fff;
+                       postoff = (16 * (1 << 12) / 255) & 0x1fff;
 
                I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
                I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
@@ -9123,15 +9123,6 @@ void intel_modeset_init(struct drm_device *dev)
        intel_disable_fbc(dev);
 }
 
-static void
-intel_connector_break_all_links(struct intel_connector *connector)
-{
-       connector->base.dpms = DRM_MODE_DPMS_OFF;
-       connector->base.encoder = NULL;
-       connector->encoder->connectors_active = false;
-       connector->encoder->base.crtc = NULL;
-}
-
 static void intel_enable_pipe_a(struct drm_device *dev)
 {
        struct intel_connector *connector;
@@ -9213,8 +9204,17 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
                        if (connector->encoder->base.crtc != &crtc->base)
                                continue;
 
-                       intel_connector_break_all_links(connector);
+                       connector->base.dpms = DRM_MODE_DPMS_OFF;
+                       connector->base.encoder = NULL;
                }
+               /* multiple connectors may have the same encoder:
+                *  handle them and break crtc link separately */
+               list_for_each_entry(connector, &dev->mode_config.connector_list,
+                                   base.head)
+                       if (connector->encoder->base.crtc == &crtc->base) {
+                               connector->encoder->base.crtc = NULL;
+                               connector->encoder->connectors_active = false;
+                       }
 
                WARN_ON(crtc->active);
                crtc->base.enabled = false;
@@ -9285,6 +9285,8 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
                                      drm_get_encoder_name(&encoder->base));
                        encoder->disable(encoder);
                }
+               encoder->base.crtc = NULL;
+               encoder->connectors_active = false;
 
                /* Inconsistent output/port/pipe state happens presumably due to
                 * a bug in one of the get_hw_state functions. Or someplace else
@@ -9295,8 +9297,8 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder)
                                    base.head) {
                        if (connector->encoder != encoder)
                                continue;
-
-                       intel_connector_break_all_links(connector);
+                       connector->base.dpms = DRM_MODE_DPMS_OFF;
+                       connector->base.encoder = NULL;
                }
        }
        /* Enabled encoders without active connectors will be fixed in
@@ -9456,7 +9458,9 @@ void intel_modeset_gem_init(struct drm_device *dev)
 
        intel_setup_overlay(dev);
 
+       mutex_lock(&dev->mode_config.mutex);
        intel_modeset_setup_hw_state(dev, false);
+       mutex_unlock(&dev->mode_config.mutex);
 }
 
 void intel_modeset_cleanup(struct drm_device *dev)
@@ -9530,14 +9534,15 @@ void intel_connector_attach_encoder(struct intel_connector *connector,
 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
+       unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL;
        u16 gmch_ctrl;
 
-       pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &gmch_ctrl);
+       pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl);
        if (state)
                gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
        else
                gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
-       pci_write_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, gmch_ctrl);
+       pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl);
        return 0;
 }