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Commit 91d131d2 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: fold the no-irq check into intel_hpd_irq_handler 



The usual pattern for our sub-function irq_handlers is that they check
for the no-irq case themselves. This results in more streamlined code
in the upper irq handlers.

v2: Rebase on top of the i965g/gm sdvo hpd fix.

Cc: Egbert Eich <eich@suse.de>
Reviewed-by: default avatarEgbert Eich <eich@suse.de>
Reviewed-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 5876fa0d

drivers/gpu/drm/i915/i915_irq.c

+17 −16
Original line number Diff line number Diff line
@@ -881,6 +881,9 @@ static inline void intel_hpd_irq_handler(struct drm_device *dev, 
	int i;

	bool storm_detected = false;



	if (!hotplug_trigger)

		return;



	spin_lock_irqsave(&dev_priv->irq_lock, irqflags);



	for (i = 1; i < HPD_NUM_PINS; i++) {
@@ -1018,9 +1021,9 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg) 


			DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n",

					 hotplug_status);

			if (hotplug_trigger) {



			intel_hpd_irq_handler(dev, hotplug_trigger, hpd_status_i915);

			}



			I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);

			I915_READ(PORT_HOTPLUG_STAT);

		}
@@ -1046,9 +1049,8 @@ static void ibx_irq_handler(struct drm_device *dev, u32 pch_iir) 
	int pipe;

	u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK;



	if (hotplug_trigger) {

	intel_hpd_irq_handler(dev, hotplug_trigger, hpd_ibx);

	}



	if (pch_iir & SDE_AUDIO_POWER_MASK) {

		int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK) >>

			       SDE_AUDIO_POWER_SHIFT);
@@ -1149,9 +1151,8 @@ static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir) 
	int pipe;

	u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT;



	if (hotplug_trigger) {

	intel_hpd_irq_handler(dev, hotplug_trigger, hpd_cpt);

	}



	if (pch_iir & SDE_AUDIO_POWER_MASK_CPT) {

		int port = ffs((pch_iir & SDE_AUDIO_POWER_MASK_CPT) >>

			       SDE_AUDIO_POWER_SHIFT_CPT);
@@ -3225,9 +3226,9 @@ static irqreturn_t i915_irq_handler(int irq, void *arg) 


			DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n",

				  hotplug_status);

			if (hotplug_trigger) {



			intel_hpd_irq_handler(dev, hotplug_trigger, hpd_status_i915);

			}



			I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);

			POSTING_READ(PORT_HOTPLUG_STAT);

		}
@@ -3463,10 +3464,10 @@ static irqreturn_t i965_irq_handler(int irq, void *arg) 


			DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n",

				  hotplug_status);

			if (hotplug_trigger) {



			intel_hpd_irq_handler(dev, hotplug_trigger,

					      IS_G4X(dev) ? hpd_status_gen4 : hpd_status_i915);

			}



			I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);

			I915_READ(PORT_HOTPLUG_STAT);

		}