[POWERPC] Xilinx: hwicap: Use fixed device major.

Major 259 has been assigned by lanana.  Use it.  Also, publish
/dev/icap[0-k] as the device entries, and register platform devices
named 'icap' to be consistent.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index 5b8d646..016f905 100644 (file)
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -36,7 +36,7 @@
  *****************************************************************************/
 
 /*
- * This is the code behind /dev/xilinx_icap -- it allows a user-space
+ * This is the code behind /dev/icap* -- it allows a user-space
  * application to use the Xilinx ICAP subsystem.
  *
  * The following operations are possible:
@@ -67,7 +67,7 @@
  * user-space application code that uses this device.  The simplest
  * way to use this interface is simply:
  *
- * cp foo.bit /dev/xilinx_icap
+ * cp foo.bit /dev/icap0
  *
  * Note that unless foo.bit is an appropriately constructed partial
  * bitstream, this has a high likelyhood of overwriting the design
@@ -105,18 +105,14 @@
 #include "buffer_icap.h"
 #include "fifo_icap.h"
 
-#define DRIVER_NAME "xilinx_icap"
+#define DRIVER_NAME "icap"
 
 #define HWICAP_REGS   (0x10000)
 
-/* dynamically allocate device number */
-static int xhwicap_major;
-static int xhwicap_minor;
+#define XHWICAP_MAJOR 259
+#define XHWICAP_MINOR 0
 #define HWICAP_DEVICES 1
 
-module_param(xhwicap_major, int, S_IRUGO);
-module_param(xhwicap_minor, int, S_IRUGO);
-
 /* An array, which is set to true when the device is registered. */
 static bool probed_devices[HWICAP_DEVICES];
 static struct mutex icap_sem;
@@ -605,7 +601,7 @@ static int __devinit hwicap_setup(struct device *dev, int id,
        probed_devices[id] = 1;
        mutex_unlock(&icap_sem);
 
-       devt = MKDEV(xhwicap_major, xhwicap_minor + id);
+       devt = MKDEV(XHWICAP_MAJOR, XHWICAP_MINOR + id);
 
        drvdata = kzalloc(sizeof(struct hwicap_drvdata), GFP_KERNEL);
        if (!drvdata) {
@@ -710,7 +706,7 @@ static int __devexit hwicap_remove(struct device *dev)
        dev_set_drvdata(dev, NULL);
 
        mutex_lock(&icap_sem);
-       probed_devices[MINOR(dev->devt)-xhwicap_minor] = 0;
+       probed_devices[MINOR(dev->devt)-XHWICAP_MINOR] = 0;
        mutex_unlock(&icap_sem);
        return 0;               /* success */
 }
@@ -850,23 +846,12 @@ static int __init hwicap_module_init(void)
        icap_class = class_create(THIS_MODULE, "xilinx_config");
        mutex_init(&icap_sem);
 
-       if (xhwicap_major) {
-               devt = MKDEV(xhwicap_major, xhwicap_minor);
-               retval = register_chrdev_region(
-                               devt,
-                               HWICAP_DEVICES,
-                               DRIVER_NAME);
-               if (retval < 0)
-                       return retval;
-       } else {
-               retval = alloc_chrdev_region(&devt,
-                               xhwicap_minor,
-                               HWICAP_DEVICES,
-                               DRIVER_NAME);
-               if (retval < 0)
-                       return retval;
-               xhwicap_major = MAJOR(devt);
-       }
+       devt = MKDEV(XHWICAP_MAJOR, XHWICAP_MINOR);
+       retval = register_chrdev_region(devt,
+                                       HWICAP_DEVICES,
+                                       DRIVER_NAME);
+       if (retval < 0)
+               return retval;
 
        retval = platform_driver_register(&hwicap_platform_driver);
 
@@ -891,7 +876,7 @@ static int __init hwicap_module_init(void)
 
 static void __exit hwicap_module_cleanup(void)
 {
-       dev_t devt = MKDEV(xhwicap_major, xhwicap_minor);
+       dev_t devt = MKDEV(XHWICAP_MAJOR, XHWICAP_MINOR);
 
        class_destroy(icap_class);