blob: e80dcfc43c9dd3111649c424579323bea61feb1e [file] [log] [blame]
From 2708d4972a34602bfbf3b3ebf480a3880b693f41 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 27 Jun 2013 17:52:14 +0200
Subject: 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: Egbert Eich <eich@suse.de>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 91d131d21e4916f84e5957cc25bea6dd355dfe77)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index cddfe417d878..2221158bebc5 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -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);
- }
+
+ 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);
- }
+ 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);
- }
+ 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);
@@ -3271,9 +3272,9 @@ 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);
- }
+
+ intel_hpd_irq_handler(dev, hotplug_trigger, hpd_status_i915);
+
I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
POSTING_READ(PORT_HOTPLUG_STAT);
}
@@ -3509,10 +3510,10 @@ 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);
- }
+
+ 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);
}
--
1.8.5.rc3