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>

2 files changed, 8 insertions, 10 deletions

diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h
index af615716dc2..a04e6caa585 100644
--- a/include/pcmcia/cs.h
+++ b/include/pcmcia/cs.h
@@ -114,13 +114,6 @@ typedef struct io_req_t {
 #define IO_DATA_PATH_WIDTH_16   0x08
 #define IO_DATA_PATH_WIDTH_AUTO 0x10
 
-/* For RequestIRQ and ReleaseIRQ */
-typedef struct irq_req_t {
-        u_int           Attributes;
-        u_int           AssignedIRQ;
-        irq_handler_t   Handler;
-} irq_req_t;
-
 /* Attributes for RequestIRQ and ReleaseIRQ */
 #define IRQ_TYPE                        0x03
 #define IRQ_TYPE_EXCLUSIVE              0x00
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index 52ebe75664e..d18330b401b 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -91,12 +91,11 @@ struct pcmcia_device {
         dev_node_t              *dev_node;
         u_int                   open;
         io_req_t                io;
-        irq_req_t               irq;
         config_req_t            conf;
         window_handle_t         win;
 
         /* device setup */
-        unsigned int            irq_v; /* do not use directly yet */
+        unsigned int            irq;
 
         /* Is the device suspended? */
         u16                     suspended:1;
@@ -194,7 +193,13 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
 
 /* device configuration */
 int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);
-int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req);
+
+int __must_check __deprecated
+pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
+                                irq_handler_t handler);
+int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
+                                irq_handler_t handler);
+
 int pcmcia_request_configuration(struct pcmcia_device *p_dev,
                                  config_req_t *req);