drm/i915: Use GEN5_IRQ_INIT() in vlv_display_irq_postinstall()

Replace the hand rolled IMR/IER setup in vlv_display_irq_postinstall()
with GEN5_IRQ_INIT(). Also rename the iir_mask to enable_mask to avoid
consusion since we no longer deal with IIR here.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1460382992-28728-7-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5fc0f2e..34ad999 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3306,7 +3306,7 @@ static void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
 static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
 {
        u32 pipestat_mask;
-       u32 iir_mask;
+       u32 enable_mask;
        enum pipe pipe;
 
        pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV |
@@ -3316,18 +3316,14 @@ static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
        for_each_pipe(dev_priv, pipe)
                i915_enable_pipestat(dev_priv, pipe, pipestat_mask);
 
-       iir_mask = I915_DISPLAY_PORT_INTERRUPT |
-                  I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
-                  I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
+       enable_mask = I915_DISPLAY_PORT_INTERRUPT |
+               I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+               I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
        if (IS_CHERRYVIEW(dev_priv))
-               iir_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
-       dev_priv->irq_mask &= ~iir_mask;
-
-       I915_WRITE(VLV_IIR, iir_mask);
-       I915_WRITE(VLV_IIR, iir_mask);
-       I915_WRITE(VLV_IER, ~dev_priv->irq_mask);
-       I915_WRITE(VLV_IMR, dev_priv->irq_mask);
-       POSTING_READ(VLV_IMR);
+               enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
+       dev_priv->irq_mask = ~enable_mask;
+
+       GEN5_IRQ_INIT(VLV_, dev_priv->irq_mask, enable_mask);
 }
 
 /* drm_dma.h hooks