[ALSA] intel8x0 - Fix irq handler registration
Modules: Intel8x0 driver
- Request irq handler after proper initialization
- Don't override always buggy_irq option for Nvidia
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 8eb9665..0801083 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -69,7 +69,7 @@
static int ac97_clock = 0;
static char *ac97_quirk;
static int buggy_semaphore;
-static int buggy_irq;
+static int buggy_irq = -1; /* auto-check */
static int xbox;
module_param(index, int, 0444);
@@ -2636,12 +2636,6 @@
pci->device == PCI_DEVICE_ID_INTEL_440MX)
chip->fix_nocache = 1; /* enable workaround */
- /* some Nforce[2] and ICH boards have problems with IRQ handling.
- * Needs to return IRQ_HANDLED for unknown irqs.
- */
- if (device_type == DEVICE_NFORCE)
- chip->buggy_irq = 1;
-
if ((err = pci_request_regions(pci, card->shortname)) < 0) {
kfree(chip);
pci_disable_device(pci);
@@ -2682,15 +2676,6 @@
}
port_inited:
- if (request_irq(pci->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
- snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
- snd_intel8x0_free(chip);
- return -EBUSY;
- }
- chip->irq = pci->irq;
- pci_set_master(pci);
- synchronize_irq(chip->irq);
-
chip->bdbars_count = bdbars[device_type];
/* initialize offsets */
@@ -2741,13 +2726,27 @@
int_sta_masks = 0;
for (i = 0; i < chip->bdbars_count; i++) {
ichdev = &chip->ichd[i];
- ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
- ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
+ ichdev->bdbar = ((u32 *)chip->bdbars.area) +
+ (i * ICH_MAX_FRAGS * 2);
+ ichdev->bdbar_addr = chip->bdbars.addr +
+ (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
int_sta_masks |= ichdev->int_sta_mask;
}
- chip->int_sta_reg = device_type == DEVICE_ALI ? ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
+ chip->int_sta_reg = device_type == DEVICE_ALI ?
+ ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
chip->int_sta_mask = int_sta_masks;
+ /* request irq after initializaing int_sta_mask, etc */
+ if (request_irq(pci->irq, snd_intel8x0_interrupt,
+ SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
+ snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+ snd_intel8x0_free(chip);
+ return -EBUSY;
+ }
+ chip->irq = pci->irq;
+ pci_set_master(pci);
+ synchronize_irq(chip->irq);
+
if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
snd_intel8x0_free(chip);
return err;
@@ -2827,6 +2826,16 @@
}
}
+ if (buggy_irq < 0) {
+ /* some Nforce[2] and ICH boards have problems with IRQ handling.
+ * Needs to return IRQ_HANDLED for unknown irqs.
+ */
+ if (pci_id->driver_data == DEVICE_NFORCE)
+ buggy_irq = 1;
+ else
+ buggy_irq = 0;
+ }
+
if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
&chip)) < 0) {
snd_card_free(card);