[Intel-gfx] [PATCH v.2 04/12] DRM/i915: Remove i965_hpd_irq_setup.

[Egbert Eich]

After
"Convert HPD interrupts to make use of HPD pin assignment in encoders."
This function is now basically the same as i915_hpd_irq_setup().

Consolidating both functions in one requires one more check for
I915_HAS_HOTPLUG(dev) in the i965 code path and one more check for
IS_G4X(dev) in the i915 code path. These are considered harmless.

Signed-off-by: Egbert Eich <eich at suse.de>
---
 drivers/gpu/drm/i915/i915_irq.c |   53 +++++++++++++-------------------------
 1 files changed, 18 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 306cd79..c6ae7ae 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2424,25 +2424,6 @@ static int i915_irq_postinstall(struct drm_device *dev)
 	return 0;
 }
 
-static void i915_hpd_irq_setup(struct drm_device *dev)
-{
-	if (I915_HAS_HOTPLUG(dev)) {
-		drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-		struct drm_mode_config *mode_config = &dev->mode_config;
-		struct intel_encoder *encoder;
-		u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
-
-		hotplug_en &= ~HOTPLUG_INT_EN_MASK;
-		list_for_each_entry(encoder, &mode_config->encoder_list, base.head)
-			hotplug_en |= hpd_mask_i915[encoder->hpd_pin];
-		hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
-
-		/* Ignore TV since it's buggy */
-
-		I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
-	}
-}
-
 static irqreturn_t i915_irq_handler(int irq, void *arg)
 {
 	struct drm_device *dev = (struct drm_device *) arg;
@@ -2649,29 +2630,31 @@ static int i965_irq_postinstall(struct drm_device *dev)
 	return 0;
 }
 
-static void i965_hpd_irq_setup(struct drm_device *dev)
+static void i915_hpd_irq_setup(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct intel_encoder *encoder;
 	u32 hotplug_en;
 
-	/* Note HDMI and DP share hotplug bits */
-	hotplug_en = 0;
-	list_for_each_entry(encoder, &mode_config->encoder_list, base.head)
+	if (I915_HAS_HOTPLUG(dev)) {
+		hotplug_en = I915_READ(PORT_HOTPLUG_EN);
+		hotplug_en &= ~HOTPLUG_INT_EN_MASK;
+		/* Note HDMI and DP share hotplug bits */
 		/* enable bits are the same for all generations */
-		hotplug_en |= hpd_mask_i915[encoder->hpd_pin];
-	/* Programming the CRT detection parameters tends
-	   to generate a spurious hotplug event about three
-	   seconds later.  So just do it once.
-	*/
-	if (IS_G4X(dev))
-		hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
-	hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
-
-	/* Ignore TV since it's buggy */
+		list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head)
+			hotplug_en |= hpd_mask_i915[intel_encoder->hpd_pin];
+		/* Programming the CRT detection parameters tends
+		   to generate a spurious hotplug event about three
+		   seconds later.  So just do it once.
+		*/
+		if (IS_G4X(dev))
+			hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+		hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
 
-	I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+		/* Ignore TV since it's buggy */
+		I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+	}
 }
 
 static irqreturn_t i965_irq_handler(int irq, void *arg)
@@ -2886,7 +2869,7 @@ void intel_irq_init(struct drm_device *dev)
 			dev->driver->irq_postinstall = i965_irq_postinstall;
 			dev->driver->irq_uninstall = i965_irq_uninstall;
 			dev->driver->irq_handler = i965_irq_handler;
-			dev_priv->display.hpd_irq_setup = i965_hpd_irq_setup;
+			dev_priv->display.hpd_irq_setup = i915_hpd_irq_setup;
 		}
 		dev->driver->enable_vblank = i915_enable_vblank;
 		dev->driver->disable_vblank = i915_disable_vblank;
-- 
1.7.7