parport: Use the PCI IRQ if offered

[linux-2.6-omap-h63xx.git] / drivers / parport / parport_pc.c

diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 96f3bdf0ec4bd4a04aaad15647e48c005a31d2d3..4e63cc9e277827bfe74db6a778471dc92196cc25 100644 (file)
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2170,10 +2170,11 @@ static int parport_dma_probe (struct parport *p)
 static LIST_HEAD(ports_list);
 static DEFINE_SPINLOCK(ports_lock);
 
-struct parport *parport_pc_probe_port (unsigned long int base,
-                                      unsigned long int base_hi,
-                                      int irq, int dma,
-                                      struct device *dev)
+struct parport *parport_pc_probe_port(unsigned long int base,
+                                     unsigned long int base_hi,
+                                     int irq, int dma,
+                                     struct device *dev,
+                                     int irqflags)
 {
        struct parport_pc_private *priv;
        struct parport_operations *ops;
@@ -2194,11 +2195,11 @@ struct parport *parport_pc_probe_port (unsigned long int base,
                dev = &pdev->dev;
        }
 
-       ops = kmalloc(sizeof (struct parport_operations), GFP_KERNEL);
+       ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
        if (!ops)
                goto out1;
 
-       priv = kmalloc (sizeof (struct parport_pc_private), GFP_KERNEL);
+       priv = kmalloc(sizeof(struct parport_pc_private), GFP_KERNEL);
        if (!priv)
                goto out2;
 
@@ -2325,8 +2326,8 @@ struct parport *parport_pc_probe_port (unsigned long int base,
                EPP_res = NULL;
        }
        if (p->irq != PARPORT_IRQ_NONE) {
-               if (request_irq (p->irq, parport_irq_handler,
-                                0, p->name, p)) {
+               if (request_irq(p->irq, parport_irq_handler,
+                                irqflags, p->name, p)) {
                        printk (KERN_WARNING "%s: irq %d in use, "
                                "resorting to polled operation\n",
                                p->name, p->irq);
@@ -2530,7 +2531,7 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq,
         */
        release_resource(base_res);
        if (parport_pc_probe_port (ite8872_lpt, ite8872_lpthi,
-                                  irq, PARPORT_DMA_NONE, &pdev->dev)) {
+                                  irq, PARPORT_DMA_NONE, &pdev->dev, 0)) {
                printk (KERN_INFO
                        "parport_pc: ITE 8872 parallel port: io=0x%X",
                        ite8872_lpt);
@@ -2713,7 +2714,7 @@ static int __devinit sio_via_probe (struct pci_dev *pdev, int autoirq,
        }
 
        /* finally, do the probe with values obtained */
-       if (parport_pc_probe_port (port1, port2, irq, dma, &pdev->dev)) {
+       if (parport_pc_probe_port (port1, port2, irq, dma, &pdev->dev, 0)) {
                printk (KERN_INFO
                        "parport_pc: VIA parallel port: io=0x%X", port1);
                if (irq != PARPORT_IRQ_NONE)
@@ -3018,6 +3019,7 @@ static int parport_pc_pci_probe (struct pci_dev *dev,
        for (n = 0; n < cards[i].numports; n++) {
                int lo = cards[i].addr[n].lo;
                int hi = cards[i].addr[n].hi;
+               int irq;
                unsigned long io_lo, io_hi;
                io_lo = pci_resource_start (dev, lo);
                io_hi = 0;
@@ -3028,13 +3030,25 @@ static int parport_pc_pci_probe (struct pci_dev *dev,
                                         "hi" as an offset (see SYBA
                                         def.) */
                /* TODO: test if sharing interrupts works */
-               printk (KERN_DEBUG "PCI parallel port detected: %04x:%04x, "
-                       "I/O at %#lx(%#lx)\n",
-                       parport_pc_pci_tbl[i + last_sio].vendor,
-                       parport_pc_pci_tbl[i + last_sio].device, io_lo, io_hi);
+               irq = dev->irq;
+               if (irq == IRQ_NONE) {
+                       printk (KERN_DEBUG
+       "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx)\n",
+                               parport_pc_pci_tbl[i + last_sio].vendor,
+                               parport_pc_pci_tbl[i + last_sio].device,
+                               io_lo, io_hi);
+                       irq = PARPORT_IRQ_NONE;
+               } else {
+                       printk (KERN_DEBUG
+       "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx), IRQ %d\n",
+                               parport_pc_pci_tbl[i + last_sio].vendor,
+                               parport_pc_pci_tbl[i + last_sio].device,
+                               io_lo, io_hi, irq);
+               }
                data->ports[count] =
-                       parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
-                                              PARPORT_DMA_NONE, &dev->dev);
+                       parport_pc_probe_port(io_lo, io_hi, irq,
+                                              PARPORT_DMA_NONE, &dev->dev,
+                                              IRQF_SHARED);
                if (data->ports[count])
                        count++;
        }
@@ -3143,7 +3157,8 @@ static int parport_pc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id
                dma = PARPORT_DMA_NONE;
 
        dev_info(&dev->dev, "reported by %s\n", dev->protocol->name);
-       if (!(pdata = parport_pc_probe_port (io_lo, io_hi, irq, dma, &dev->dev)))
+       if (!(pdata = parport_pc_probe_port(io_lo, io_hi,
+                                       irq, dma, &dev->dev, 0)))
                return -ENODEV;
 
        pnp_set_drvdata(dev,pdata);
@@ -3192,11 +3207,11 @@ parport_pc_find_isa_ports (int autoirq, int autodma)
 {
        int count = 0;
 
-       if (parport_pc_probe_port(0x3bc, 0x7bc, autoirq, autodma, NULL))
+       if (parport_pc_probe_port(0x3bc, 0x7bc, autoirq, autodma, NULL, 0))
                count++;
-       if (parport_pc_probe_port(0x378, 0x778, autoirq, autodma, NULL))
+       if (parport_pc_probe_port(0x378, 0x778, autoirq, autodma, NULL, 0))
                count++;
-       if (parport_pc_probe_port(0x278, 0x678, autoirq, autodma, NULL))
+       if (parport_pc_probe_port(0x278, 0x678, autoirq, autodma, NULL, 0))
                count++;
 
        return count;
@@ -3481,7 +3496,7 @@ static int __init parport_pc_init(void)
                        if ((io_hi[i]) == PARPORT_IOHI_AUTO)
                               io_hi[i] = 0x400 + io[i];
                        parport_pc_probe_port(io[i], io_hi[i],
-                                                 irqval[i], dmaval[i], NULL);
+                                         irqval[i], dmaval[i], NULL, 0);
                }
        } else
                parport_pc_find_ports (irqval[0], dmaval[0]);