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path: root/drivers/gpu/drm/gma500/psb_irq.c
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Diffstat (limited to 'drivers/gpu/drm/gma500/psb_irq.c')
-rw-r--r--drivers/gpu/drm/gma500/psb_irq.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
index 104009e78487..deb1fbc1f748 100644
--- a/drivers/gpu/drm/gma500/psb_irq.c
+++ b/drivers/gpu/drm/gma500/psb_irq.c
@@ -8,6 +8,7 @@
*
**************************************************************************/
+#include <drm/drm_drv.h>
#include <drm/drm_vblank.h>
#include "power.h"
@@ -222,7 +223,7 @@ static void psb_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2)
PSB_RSGX32(PSB_CR_EVENT_HOST_CLEAR2);
}
-irqreturn_t psb_irq_handler(int irq, void *arg)
+static irqreturn_t psb_irq_handler(int irq, void *arg)
{
struct drm_device *dev = arg;
struct drm_psb_private *dev_priv = dev->dev_private;
@@ -304,7 +305,7 @@ void psb_irq_preinstall(struct drm_device *dev)
spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
}
-int psb_irq_postinstall(struct drm_device *dev)
+void psb_irq_postinstall(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
unsigned long irqflags;
@@ -332,12 +333,31 @@ int psb_irq_postinstall(struct drm_device *dev)
dev_priv->ops->hotplug_enable(dev, true);
spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+}
+
+int psb_irq_install(struct drm_device *dev, unsigned int irq)
+{
+ int ret;
+
+ if (irq == IRQ_NOTCONNECTED)
+ return -ENOTCONN;
+
+ psb_irq_preinstall(dev);
+
+ /* PCI devices require shared interrupts. */
+ ret = request_irq(irq, psb_irq_handler, IRQF_SHARED, dev->driver->name, dev);
+ if (ret)
+ return ret;
+
+ psb_irq_postinstall(dev);
+
return 0;
}
void psb_irq_uninstall(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
+ struct pci_dev *pdev = to_pci_dev(dev->dev);
unsigned long irqflags;
unsigned int i;
@@ -366,6 +386,8 @@ void psb_irq_uninstall(struct drm_device *dev)
/* This register is safe even if display island is off */
PSB_WVDC32(PSB_RVDC32(PSB_INT_IDENTITY_R), PSB_INT_IDENTITY_R);
spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+
+ free_irq(pdev->irq, dev);
}
/*