drm/i915: Simplify CHV pipe A power well code

The pipe A power well is the "disp2d" well on CHV and pipe B and C wells
don't even exist. Thereforce we can remove the checks for pipe A vs.
others and just assume it's always pipe A.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 932d963..1bd947a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -1042,53 +1042,46 @@ out:
 static void chv_pipe_power_well_sync_hw(struct drm_i915_private *dev_priv,
                                        struct i915_power_well *power_well)
 {
+       WARN_ON_ONCE(power_well->data != PIPE_A);
+
        chv_set_pipe_power_well(dev_priv, power_well, power_well->count > 0);
 }
 
 static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
                                       struct i915_power_well *power_well)
 {
-       WARN_ON_ONCE(power_well->data != PIPE_A &&
-                    power_well->data != PIPE_B &&
-                    power_well->data != PIPE_C);
+       WARN_ON_ONCE(power_well->data != PIPE_A);
 
        chv_set_pipe_power_well(dev_priv, power_well, true);
 
-       if (power_well->data == PIPE_A) {
-               spin_lock_irq(&dev_priv->irq_lock);
-               valleyview_enable_display_irqs(dev_priv);
-               spin_unlock_irq(&dev_priv->irq_lock);
+       spin_lock_irq(&dev_priv->irq_lock);
+       valleyview_enable_display_irqs(dev_priv);
+       spin_unlock_irq(&dev_priv->irq_lock);
 
-               /*
-                * During driver initialization/resume we can avoid restoring the
-                * part of the HW/SW state that will be inited anyway explicitly.
-                */
-               if (dev_priv->power_domains.initializing)
-                       return;
+       /*
+        * During driver initialization/resume we can avoid restoring the
+        * part of the HW/SW state that will be inited anyway explicitly.
+        */
+       if (dev_priv->power_domains.initializing)
+               return;
 
-               intel_hpd_init(dev_priv);
+       intel_hpd_init(dev_priv);
 
-               i915_redisable_vga_power_on(dev_priv->dev);
-       }
+       i915_redisable_vga_power_on(dev_priv->dev);
 }
 
 static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
                                        struct i915_power_well *power_well)
 {
-       WARN_ON_ONCE(power_well->data != PIPE_A &&
-                    power_well->data != PIPE_B &&
-                    power_well->data != PIPE_C);
-
-       if (power_well->data == PIPE_A) {
-               spin_lock_irq(&dev_priv->irq_lock);
-               valleyview_disable_display_irqs(dev_priv);
-               spin_unlock_irq(&dev_priv->irq_lock);
-       }
+       WARN_ON_ONCE(power_well->data != PIPE_A);
+
+       spin_lock_irq(&dev_priv->irq_lock);
+       valleyview_disable_display_irqs(dev_priv);
+       spin_unlock_irq(&dev_priv->irq_lock);
 
        chv_set_pipe_power_well(dev_priv, power_well, false);
 
-       if (power_well->data == PIPE_A)
-               vlv_power_sequencer_reset(dev_priv);
+       vlv_power_sequencer_reset(dev_priv);
 }
 
 /**