drm/i915/irq: add dedicated intel_display_irq_init()

Continue splitting display from the rest.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/45c247c9f5104f3e25bd8913644402a11ec3afaf.1691509966.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_driver.c

@@ -28,6 +28,7 @@
 #include "intel_crtc.h"
 #include "intel_display_debugfs.h"
 #include "intel_display_driver.h"
+#include "intel_display_irq.h"
 #include "intel_display_power.h"
 #include "intel_display_types.h"
 #include "intel_dkl_phy.h"
@@ -177,6 +178,7 @@ void intel_display_driver_early_probe(struct drm_i915_private *i915)
 	if (!HAS_DISPLAY(i915))
 		return;
 
+	intel_display_irq_init(i915);
 	intel_dkl_phy_init(i915);
 	intel_color_init_hooks(i915);
 	intel_init_cdclk_hooks(i915);

drivers/gpu/drm/i915/display/intel_display_irq.c

@@ -1699,3 +1699,20 @@ void gen11_de_irq_postinstall(struct drm_i915_private *dev_priv)
 			   GEN11_DISPLAY_IRQ_ENABLE);
 }
 
+void intel_display_irq_init(struct drm_i915_private *i915)
+{
+	i915->drm.vblank_disable_immediate = true;
+
+	/*
+	 * Most platforms treat the display irq block as an always-on power
+	 * domain. vlv/chv can disable it at runtime and need special care to
+	 * avoid writing any of the display block registers outside of the power
+	 * domain. We defer setting up the display irqs in this case to the
+	 * runtime pm.
+	 */
+	i915->display_irqs_enabled = true;
+	if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+		i915->display_irqs_enabled = false;
+
+	intel_hotplug_irq_init(i915);
+}

drivers/gpu/drm/i915/display/intel_display_irq.h

@@ -78,4 +78,6 @@ void i965_pipestat_irq_handler(struct drm_i915_private *i915, u32 iir, u32 pipe_
 void valleyview_pipestat_irq_handler(struct drm_i915_private *i915, u32 pipe_stats[I915_MAX_PIPES]);
 void i8xx_pipestat_irq_handler(struct drm_i915_private *i915, u16 iir, u32 pipe_stats[I915_MAX_PIPES]);
 
+void intel_display_irq_init(struct drm_i915_private *i915);
+
 #endif /* __INTEL_DISPLAY_IRQ_H__ */

drivers/gpu/drm/i915/i915_irq.c

@@ -1343,23 +1343,6 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 	/* pre-gen11 the guc irqs bits are in the upper 16 bits of the pm reg */
 	if (HAS_GT_UC(dev_priv) && GRAPHICS_VER(dev_priv) < 11)
 		to_gt(dev_priv)->pm_guc_events = GUC_INTR_GUC2HOST << 16;
-
-	if (!HAS_DISPLAY(dev_priv))
-		return;
-
-	dev_priv->drm.vblank_disable_immediate = true;
-
-	/* Most platforms treat the display irq block as an always-on
-	 * power domain. vlv/chv can disable it at runtime and need
-	 * special care to avoid writing any of the display block registers
-	 * outside of the power domain. We defer setting up the display irqs
-	 * in this case to the runtime pm.
-	 */
-	dev_priv->display_irqs_enabled = true;
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		dev_priv->display_irqs_enabled = false;
-
-	intel_hotplug_irq_init(dev_priv);
 }
 
 /**