Input: wistron - convert to the new platform device interface

Do not use platform_device_register_simple() as it is going away,
implement ->probe() and ->remove() functions so manual binding and
unbinding would work.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index b77e2692ba3aa8abaada92dc15d9c53d35e0b159..a05b8557842f56554ceb88bb4edbbfb2c44305fe 100644 (file)
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -174,7 +174,7 @@ static u16 bios_pop_queue(void)
        return regs.eax;
 }
 
-static void __init bios_attach(void)
+static void __devinit bios_attach(void)
 {
        struct regs regs;
 
@@ -194,7 +194,7 @@ static void bios_detach(void)
        call_bios(&regs);
 }
 
-static u8 __init bios_get_cmos_address(void)
+static u8 __devinit bios_get_cmos_address(void)
 {
        struct regs regs;
 
@@ -206,7 +206,7 @@ static u8 __init bios_get_cmos_address(void)
        return regs.ecx;
 }
 
-static u16 __init bios_get_default_setting(u8 subsys)
+static u16 __devinit bios_get_default_setting(u8 subsys)
 {
        struct regs regs;
 
@@ -367,7 +367,7 @@ static int __init select_keymap(void)
 
 static struct input_dev *input_dev;
 
-static int __init setup_input_dev(void)
+static int __devinit setup_input_dev(void)
 {
        const struct key_entry *key;
        int error;
@@ -466,6 +466,52 @@ static void poll_bios(unsigned long discard)
        mod_timer(&poll_timer, jiffies + HZ / POLL_FREQUENCY);
 }
 
+static int __devinit wistron_probe(struct platform_device *dev)
+{
+       int err = setup_input_dev();
+       if (err)
+               return err;
+
+       bios_attach();
+       cmos_address = bios_get_cmos_address();
+
+       if (have_wifi) {
+               u16 wifi = bios_get_default_setting(WIFI);
+               if (wifi & 1)
+                       wifi_enabled = (wifi & 2) ? 1 : 0;
+               else
+                       have_wifi = 0;
+
+               if (have_wifi)
+                       bios_set_state(WIFI, wifi_enabled);
+       }
+
+       if (have_bluetooth) {
+               u16 bt = bios_get_default_setting(BLUETOOTH);
+               if (bt & 1)
+                       bluetooth_enabled = (bt & 2) ? 1 : 0;
+               else
+                       have_bluetooth = 0;
+
+               if (have_bluetooth)
+                       bios_set_state(BLUETOOTH, bluetooth_enabled);
+       }
+
+       poll_bios(1); /* Flush stale event queue and arm timer */
+
+       return 0;
+}
+
+static int __devexit wistron_remove(struct platform_device *dev)
+{
+       del_timer_sync(&poll_timer);
+       input_unregister_device(input_dev);
+       bios_detach();
+
+       return 0;
+}
+
+#ifdef CONFIG_PM
 static int wistron_suspend(struct platform_device *dev, pm_message_t state)
 {
        del_timer_sync(&poll_timer);
@@ -491,13 +537,20 @@ static int wistron_resume(struct platform_device *dev)
 
        return 0;
 }
+#else
+#define wistron_suspend                NULL
+#define wistron_resume         NULL
+#endif
 
 static struct platform_driver wistron_driver = {
-       .suspend        = wistron_suspend,
-       .resume         = wistron_resume,
        .driver         = {
                .name   = "wistron-bios",
+               .owner  = THIS_MODULE,
        },
+       .probe          = wistron_probe,
+       .remove         = __devexit_p(wistron_remove),
+       .suspend        = wistron_suspend,
+       .resume         = wistron_resume,
 };
 
 static int __init wb_module_init(void)
@@ -512,55 +565,27 @@ static int __init wb_module_init(void)
        if (err)
                return err;
 
-       bios_attach();
-       cmos_address = bios_get_cmos_address();
-
        err = platform_driver_register(&wistron_driver);
        if (err)
-               goto err_detach_bios;
+               goto err_unmap_bios;
 
-       wistron_device = platform_device_register_simple("wistron-bios", -1, NULL, 0);
-       if (IS_ERR(wistron_device)) {
-               err = PTR_ERR(wistron_device);
+       wistron_device = platform_device_alloc("wistron-bios", -1);
+       if (!wistron_device) {
+               err = -ENOMEM;
                goto err_unregister_driver;
        }
 
-       if (have_wifi) {
-               u16 wifi = bios_get_default_setting(WIFI);
-               if (wifi & 1)
-                       wifi_enabled = (wifi & 2) ? 1 : 0;
-               else
-                       have_wifi = 0;
-
-               if (have_wifi)
-                       bios_set_state(WIFI, wifi_enabled);
-       }
-
-       if (have_bluetooth) {
-               u16 bt = bios_get_default_setting(BLUETOOTH);
-               if (bt & 1)
-                       bluetooth_enabled = (bt & 2) ? 1 : 0;
-               else
-                       have_bluetooth = 0;
-
-               if (have_bluetooth)
-                       bios_set_state(BLUETOOTH, bluetooth_enabled);
-       }
-
-       err = setup_input_dev();
+       err = platform_device_add(wistron_device);
        if (err)
-               goto err_unregister_device;
-
-       poll_bios(1); /* Flush stale event queue and arm timer */
+               goto err_free_device;
 
        return 0;
 
- err_unregister_device:
-       platform_device_unregister(wistron_device);
+ err_free_device:
+       platform_device_put(wistron_device);
  err_unregister_driver:
        platform_driver_unregister(&wistron_driver);
- err_detach_bios:
-       bios_detach();
+ err_unmap_bios:
        unmap_bios();
 
        return err;
@@ -568,11 +593,8 @@ static int __init wb_module_init(void)
 
 static void __exit wb_module_exit(void)
 {
-       del_timer_sync(&poll_timer);
-       input_unregister_device(input_dev);
        platform_device_unregister(wistron_device);
        platform_driver_unregister(&wistron_driver);
-       bios_detach();
        unmap_bios();
 }