[ppc44x] refresh kernel patches

[openwrt.git] / target / linux / ifxmips / files / drivers / char / ifxmips_gpio.c

diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c b/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c
index 3d0e803..8802523 100644 (file)
--- a/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c
+++ b/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c
@@ -32,6 +32,7 @@
 #include <linux/workqueue.h>
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
+#include <linux/platform_device.h>
 #include <net/sock.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
@@ -42,6 +43,8 @@
 #define MAX_PORTS                      2
 #define PINS_PER_PORT          16
 
+#define DRVNAME                                "ifxmips_gpio"  
+
 static unsigned int ifxmips_gpio_major = 0;
 
 #ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
@@ -513,30 +516,29 @@ static struct file_operations port_fops = {
       .ioctl = ifxmips_port_ioctl
 };
 
-int __init
-ifxmips_gpio_init (void)
+static int
+ifxmips_gpio_probe (struct platform_device *dev)
 {
        int retval = 0;
 
        sema_init (&port_sem, 1);
 
-       ifxmips_gpio_major = register_chrdev(0, "ifxmips_gpio", &port_fops);
+       ifxmips_gpio_major = register_chrdev(0, DRVNAME, &port_fops);
        if (!ifxmips_gpio_major)
        {
-               printk("ifxmips-port: Error! Could not register port device. #%d\n", ifxmips_gpio_major);
+               printk(KERN_INFO DRVNAME ": Error! Could not register port device. #%d\n", ifxmips_gpio_major);
                retval = -EINVAL;
                goto out;
        }
 
-       create_proc_read_entry("ifxmips_gpio", 0, NULL,
-                               ifxmips_port_read_procmem, NULL);
+       create_proc_read_entry(DRVNAME, 0, NULL, ifxmips_port_read_procmem, NULL);
 
 #ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
        ifxmips_port_set_open_drain(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
        ifxmips_port_clear_altsel0(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
        ifxmips_port_clear_altsel1(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
        ifxmips_port_set_dir_in(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN);
-       
+
        seen = jiffies;
 
        init_timer(&rst_button_timer);
@@ -545,20 +547,47 @@ ifxmips_gpio_init (void)
        add_timer(&rst_button_timer);
 #endif
 
-       printk("registered ifxmips gpio driver\n");
+       printk(KERN_INFO DRVNAME ": device successfully initialized #%d.\n", ifxmips_gpio_major);
 
 out:
        return retval;
 }
 
-void __exit
-ifxmips_gpio_exit (void)
+static int
+ifxmips_gpio_remove (struct platform_device *pdev)
 {
 #ifdef CONFIG_IFXMIPS_GPIO_RST_BTN
        del_timer_sync(&rst_button_timer);
 #endif
-       unregister_chrdev(ifxmips_gpio_major, "ifxmips_gpio");
-       remove_proc_entry("ifxmips_gpio", NULL);
+       unregister_chrdev(ifxmips_gpio_major, DRVNAME);
+       remove_proc_entry(DRVNAME, NULL);
+
+       return 0;
+}
+
+static struct
+platform_driver ifxmips_gpio_driver = {
+       .probe = ifxmips_gpio_probe,
+       .remove = ifxmips_gpio_remove,
+       .driver = {
+               .name = DRVNAME,
+               .owner = THIS_MODULE,
+       },
+};
+
+int __init
+ifxmips_gpio_init (void)
+{
+       int ret = platform_driver_register(&ifxmips_gpio_driver);
+       if (ret)
+               printk(KERN_INFO DRVNAME ": Error registering platfom driver!");
+       return ret;
+}
+
+void __exit
+ifxmips_gpio_exit (void)
+{
+       platform_driver_unregister(&ifxmips_gpio_driver);
 }
 
 module_init(ifxmips_gpio_init);