lkml.org 
[lkml]   [2011]   [Jul]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[staging] mei: Enable msi when supported
Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com>
---
Tested suspend/resume, driver (re/un)loading. Comments welcome. :)

diff --git a/drivers/staging/mei/main.c b/drivers/staging/mei/main.c
index bfd1b46..58106bf 100644
--- a/drivers/staging/mei/main.c
+++ b/drivers/staging/mei/main.c
@@ -121,6 +121,7 @@ static int __devinit mei_probe(struct pci_dev *pdev,
{
struct mei_device *dev;
int err;
+ unsigned long flags = 0;

mutex_lock(&mei_mutex);
if (mei_device) {
@@ -154,11 +155,13 @@ static int __devinit mei_probe(struct pci_dev *pdev,
err = -ENOMEM;
goto free_device;
}
+ if (pci_enable_msi(pdev) < 0)
+ flags |= IRQF_SHARED;
/* request and enable interrupt */
err = request_threaded_irq(pdev->irq,
mei_interrupt_quick_handler,
mei_interrupt_thread_handler,
- IRQF_SHARED, mei_driver_name, dev);
+ flags, mei_driver_name, dev);
if (err) {
printk(KERN_ERR "mei: request_threaded_irq failure. irq = %d\n",
pdev->irq);
@@ -186,6 +189,7 @@ release_irq:
mei_disable_interrupts(dev);
flush_scheduled_work();
free_irq(pdev->irq, dev);
+ pci_disable_msi(pdev);
unmap_memory:
pci_iounmap(pdev, dev->mem_addr);
free_device:
@@ -250,6 +254,7 @@ static void __devexit mei_remove(struct pci_dev *pdev)
mei_disable_interrupts(dev);

free_irq(pdev->irq, dev);
+ pci_disable_msi(pdev);
pci_set_drvdata(pdev, NULL);

if (dev->mem_addr)
@@ -1103,7 +1108,7 @@ static int mei_pci_suspend(struct device *device)
mutex_unlock(&dev->device_lock);

free_irq(pdev->irq, dev);
-
+ pci_disable_msi(pdev);

return err;
}
@@ -1113,16 +1118,19 @@ static int mei_pci_resume(struct device *device)
struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int err;
+ unsigned long flags = 0;

dev = pci_get_drvdata(pdev);
if (!dev)
return -ENODEV;

+ if (pci_enable_msi(pdev) < 0)
+ flags |= IRQF_SHARED;
/* request and enable interrupt */
err = request_threaded_irq(pdev->irq,
mei_interrupt_quick_handler,
mei_interrupt_thread_handler,
- IRQF_SHARED, mei_driver_name, dev);
+ flags, mei_driver_name, dev);
if (err) {
printk(KERN_ERR "mei: Request_irq failure. irq = %d\n",
pdev->irq);



\
 
 \ /
  Last update: 2011-07-07 13:35    [W:0.378 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site