media: lirc_sir: make device registration work

commit 4b71ca6bce8fab3d08c61bf330e781f957934ae1 upstream.

For one, the driver device pointer needs to be filled in, or the lirc core
will refuse to load the driver. And we really need to wire up all the
platform_device bits. This has been tested via the lirc sourceforge tree
and verified to work, been sitting there for months, finally getting
around to sending it. :\

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lirc/lirc_sir.c b/drivers/staging/lirc/lirc_sir.c
index 0d3864594b12abf28545f4b52cc511ae5ce17378..39bb66b79fe4785584c4750f7d7b31e210ca2c13 100644 (file)
--- a/drivers/staging/lirc/lirc_sir.c
+++ b/drivers/staging/lirc/lirc_sir.c
@@ -53,6 +53,7 @@
 #include <linux/io.h>
 #include <asm/irq.h>
 #include <linux/fcntl.h>
+#include <linux/platform_device.h>
 #ifdef LIRC_ON_SA1100
 #include <asm/hardware.h>
 #ifdef CONFIG_SA1100_COLLIE
@@ -488,9 +489,11 @@ static struct lirc_driver driver = {
        .owner          = THIS_MODULE,
 };
 
+static struct platform_device *lirc_sir_dev;
 
 static int init_chrdev(void)
 {
+       driver.dev = &lirc_sir_dev->dev;
        driver.minor = lirc_register_driver(&driver);
        if (driver.minor < 0) {
                printk(KERN_ERR LIRC_DRIVER_NAME ": init_chrdev() failed.\n");
@@ -1216,20 +1219,71 @@ static int init_lirc_sir(void)
        return 0;
 }
 
+static int __devinit lirc_sir_probe(struct platform_device *dev)
+{
+       return 0;
+}
+
+static int __devexit lirc_sir_remove(struct platform_device *dev)
+{
+       return 0;
+}
+
+static struct platform_driver lirc_sir_driver = {
+       .probe          = lirc_sir_probe,
+       .remove         = __devexit_p(lirc_sir_remove),
+       .driver         = {
+               .name   = "lirc_sir",
+               .owner  = THIS_MODULE,
+       },
+};
 
 static int __init lirc_sir_init(void)
 {
        int retval;
 
+       retval = platform_driver_register(&lirc_sir_driver);
+       if (retval) {
+               printk(KERN_ERR LIRC_DRIVER_NAME ": Platform driver register "
+                      "failed!\n");
+               return -ENODEV;
+       }
+
+       lirc_sir_dev = platform_device_alloc("lirc_dev", 0);
+       if (!lirc_sir_dev) {
+               printk(KERN_ERR LIRC_DRIVER_NAME ": Platform device alloc "
+                      "failed!\n");
+               retval = -ENOMEM;
+               goto pdev_alloc_fail;
+       }
+
+       retval = platform_device_add(lirc_sir_dev);
+       if (retval) {
+               printk(KERN_ERR LIRC_DRIVER_NAME ": Platform device add "
+                      "failed!\n");
+               retval = -ENODEV;
+               goto pdev_add_fail;
+       }
+
        retval = init_chrdev();
        if (retval < 0)
-               return retval;
+               goto fail;
+
        retval = init_lirc_sir();
        if (retval) {
                drop_chrdev();
-               return retval;
+               goto fail;
        }
+
        return 0;
+
+fail:
+       platform_device_del(lirc_sir_dev);
+pdev_add_fail:
+       platform_device_put(lirc_sir_dev);
+pdev_alloc_fail:
+       platform_driver_unregister(&lirc_sir_driver);
+       return retval;
 }
 
 static void __exit lirc_sir_exit(void)
@@ -1237,6 +1291,8 @@ static void __exit lirc_sir_exit(void)
        drop_hardware();
        drop_chrdev();
        drop_port();
+       platform_device_unregister(lirc_sir_dev);
+       platform_driver_unregister(&lirc_sir_driver);
        printk(KERN_INFO LIRC_DRIVER_NAME ": Uninstalled.\n");
 }