drm/i915: shuffle panel code

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

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 44ad415e37067be162682d68368f95fc9083638b..776249bab488aafd36812dfd35ce62bd51d83872 100644 (file)
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -42,6 +42,59 @@ intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
        drm_mode_set_crtcinfo(adjusted_mode, 0);
 }
 
+/**
+ * intel_find_panel_downclock - find the reduced downclock for LVDS in EDID
+ * @dev: drm device
+ * @fixed_mode : panel native mode
+ * @connector: LVDS/eDP connector
+ *
+ * Return downclock_avail
+ * Find the reduced downclock for LVDS/eDP in EDID.
+ */
+struct drm_display_mode *
+intel_find_panel_downclock(struct drm_device *dev,
+                       struct drm_display_mode *fixed_mode,
+                       struct drm_connector *connector)
+{
+       struct drm_display_mode *scan, *tmp_mode;
+       int temp_downclock;
+
+       temp_downclock = fixed_mode->clock;
+       tmp_mode = NULL;
+
+       list_for_each_entry(scan, &connector->probed_modes, head) {
+               /*
+                * If one mode has the same resolution with the fixed_panel
+                * mode while they have the different refresh rate, it means
+                * that the reduced downclock is found. In such
+                * case we can set the different FPx0/1 to dynamically select
+                * between low and high frequency.
+                */
+               if (scan->hdisplay == fixed_mode->hdisplay &&
+                   scan->hsync_start == fixed_mode->hsync_start &&
+                   scan->hsync_end == fixed_mode->hsync_end &&
+                   scan->htotal == fixed_mode->htotal &&
+                   scan->vdisplay == fixed_mode->vdisplay &&
+                   scan->vsync_start == fixed_mode->vsync_start &&
+                   scan->vsync_end == fixed_mode->vsync_end &&
+                   scan->vtotal == fixed_mode->vtotal) {
+                       if (scan->clock < temp_downclock) {
+                               /*
+                                * The downclock is already found. But we
+                                * expect to find the lower downclock.
+                                */
+                               temp_downclock = scan->clock;
+                               tmp_mode = scan;
+                       }
+               }
+       }
+
+       if (temp_downclock < fixed_mode->clock)
+               return drm_mode_duplicate(dev, tmp_mode);
+       else
+               return NULL;
+}
+
 /* adjusted_mode has been preset to be the panel's fixed mode */
 void
 intel_pch_panel_fitting(struct intel_crtc *intel_crtc,
@@ -323,6 +376,28 @@ out:
        pipe_config->gmch_pfit.lvds_border_bits = border;
 }
 
+enum drm_connector_status
+intel_panel_detect(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+
+       /* Assume that the BIOS does not lie through the OpRegion... */
+       if (!i915.panel_ignore_lid && dev_priv->opregion.lid_state) {
+               return ioread32(dev_priv->opregion.lid_state) & 0x1 ?
+                       connector_status_connected :
+                       connector_status_disconnected;
+       }
+
+       switch (i915.panel_ignore_lid) {
+       case -2:
+               return connector_status_connected;
+       case -1:
+               return connector_status_disconnected;
+       default:
+               return connector_status_unknown;
+       }
+}
+
 static u32 intel_panel_compute_brightness(struct intel_connector *connector,
                                          u32 val)
 {
@@ -795,28 +870,6 @@ void intel_panel_enable_backlight(struct intel_connector *connector)
        spin_unlock_irqrestore(&dev_priv->backlight_lock, flags);
 }
 
-enum drm_connector_status
-intel_panel_detect(struct drm_device *dev)
-{
-       struct drm_i915_private *dev_priv = dev->dev_private;
-
-       /* Assume that the BIOS does not lie through the OpRegion... */
-       if (!i915.panel_ignore_lid && dev_priv->opregion.lid_state) {
-               return ioread32(dev_priv->opregion.lid_state) & 0x1 ?
-                       connector_status_connected :
-                       connector_status_disconnected;
-       }
-
-       switch (i915.panel_ignore_lid) {
-       case -2:
-               return connector_status_connected;
-       case -1:
-               return connector_status_disconnected;
-       default:
-               return connector_status_unknown;
-       }
-}
-
 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
 static int intel_backlight_device_update_status(struct backlight_device *bd)
 {
@@ -1103,59 +1156,6 @@ void intel_panel_destroy_backlight(struct drm_connector *connector)
        intel_backlight_device_unregister(intel_connector);
 }
 
-/**
- * intel_find_panel_downclock - find the reduced downclock for LVDS in EDID
- * @dev: drm device
- * @fixed_mode : panel native mode
- * @connector: LVDS/eDP connector
- *
- * Return downclock_avail
- * Find the reduced downclock for LVDS/eDP in EDID.
- */
-struct drm_display_mode *
-intel_find_panel_downclock(struct drm_device *dev,
-                       struct drm_display_mode *fixed_mode,
-                       struct drm_connector *connector)
-{
-       struct drm_display_mode *scan, *tmp_mode;
-       int temp_downclock;
-
-       temp_downclock = fixed_mode->clock;
-       tmp_mode = NULL;
-
-       list_for_each_entry(scan, &connector->probed_modes, head) {
-               /*
-                * If one mode has the same resolution with the fixed_panel
-                * mode while they have the different refresh rate, it means
-                * that the reduced downclock is found. In such
-                * case we can set the different FPx0/1 to dynamically select
-                * between low and high frequency.
-                */
-               if (scan->hdisplay == fixed_mode->hdisplay &&
-                   scan->hsync_start == fixed_mode->hsync_start &&
-                   scan->hsync_end == fixed_mode->hsync_end &&
-                   scan->htotal == fixed_mode->htotal &&
-                   scan->vdisplay == fixed_mode->vdisplay &&
-                   scan->vsync_start == fixed_mode->vsync_start &&
-                   scan->vsync_end == fixed_mode->vsync_end &&
-                   scan->vtotal == fixed_mode->vtotal) {
-                       if (scan->clock < temp_downclock) {
-                               /*
-                                * The downclock is already found. But we
-                                * expect to find the lower downclock.
-                                */
-                               temp_downclock = scan->clock;
-                               tmp_mode = scan;
-                       }
-               }
-       }
-
-       if (temp_downclock < fixed_mode->clock)
-               return drm_mode_duplicate(dev, tmp_mode);
-       else
-               return NULL;
-}
-
 /* Set up chip specific backlight functions */
 void intel_panel_init_backlight_funcs(struct drm_device *dev)
 {