pcmcia: re-work pcmcia_request_irq()

Instead of the old pcmcia_request_irq() interface, drivers may now
choose between:

- calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.

- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
  clean up automatically on calls to pcmcia_disable_device() or
  device ejection.

- drivers still not capable of IRQF_SHARED (or not telling us so) may
  use the deprecated pcmcia_request_exclusive_irq() for the time
  being; they might receive a shared IRQ nonetheless.

CC: linux-bluetooth@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-usb@vger.kernel.org
CC: linux-ide@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 5 insertions, 13 deletions

diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 39d253e841f6..a712788f9b10 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -163,8 +163,7 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev,
                         dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
 
         /* we need an interrupt */
-        if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
-                p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+        p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
 
         /* IO window settings */
         p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -197,11 +196,8 @@ static int sl811_cs_config(struct pcmcia_device *link)
         /* require an IRQ and two registers */
         if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
                 goto failed;
-        if (link->conf.Attributes & CONF_ENABLE_IRQ) {
-                ret = pcmcia_request_irq(link, &link->irq);
-                if (ret)
-                        goto failed;
-        } else
+
+        if (!link->irq)
                 goto failed;
 
         ret = pcmcia_request_configuration(link, &link->conf);
@@ -216,12 +212,12 @@ static int sl811_cs_config(struct pcmcia_device *link)
                dev->node.dev_name, link->conf.ConfigIndex);
         if (link->conf.Vpp)
                 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
-        printk(", irq %d", link->irq.AssignedIRQ);
+        printk(", irq %d", link->irq);
         printk(", io 0x%04x-0x%04x", link->io.BasePort1,
                link->io.BasePort1+link->io.NumPorts1-1);
         printk("\n");
 
-        if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
+        if (sl811_hc_init(parent, link->io.BasePort1, link->irq)
                         < 0) {
 failed:
                 printk(KERN_WARNING "sl811_cs_config failed\n");
@@ -241,10 +237,6 @@ static int sl811_cs_probe(struct pcmcia_device *link)
         local->p_dev = link;
         link->priv = local;
 
-        /* Initialize */
-        link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-        link->irq.Handler = NULL;
-
         link->conf.Attributes = 0;
         link->conf.IntType = INT_MEMORY_AND_IO;