[DRIVER MODEL] Convert platform drivers to use struct platform_driver

This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 18 insertions, 17 deletions

diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index d1f9da498729..c96c8a2aa1c2 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -275,9 +275,9 @@ static int pxa2xx_ac97_do_resume(snd_card_t *card)
         return 0;
 }
 
-static int pxa2xx_ac97_suspend(struct device *_dev, pm_message_t state)
+static int pxa2xx_ac97_suspend(struct platform_device *dev, pm_message_t state)
 {
-        snd_card_t *card = dev_get_drvdata(_dev);
+        snd_card_t *card = platform_get_drvdata(dev);
         int ret = 0;
 
         if (card)
@@ -286,9 +286,9 @@ static int pxa2xx_ac97_suspend(struct device *_dev, pm_message_t state)
         return ret;
 }
 
-static int pxa2xx_ac97_resume(struct device *_dev)
+static int pxa2xx_ac97_resume(struct platform_device *dev)
 {
-        snd_card_t *card = dev_get_drvdata(_dev);
+        snd_card_t *card = platform_get_drvdata(dev);
         int ret = 0;
 
         if (card)
@@ -302,7 +302,7 @@ static int pxa2xx_ac97_resume(struct device *_dev)
 #define pxa2xx_ac97_resume      NULL
 #endif
 
-static int pxa2xx_ac97_probe(struct device *dev)
+static int pxa2xx_ac97_probe(struct platform_device *dev)
 {
         snd_card_t *card;
         ac97_bus_t *ac97_bus;
@@ -315,8 +315,8 @@ static int pxa2xx_ac97_probe(struct device *dev)
         if (!card)
                 goto err;
 
-        card->dev = dev;
-        strncpy(card->driver, dev->driver->name, sizeof(card->driver));
+        card->dev = &dev->dev;
+        strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
 
         ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm);
         if (ret)
@@ -347,13 +347,13 @@ static int pxa2xx_ac97_probe(struct device *dev)
         snprintf(card->shortname, sizeof(card->shortname),
                  "%s", snd_ac97_get_short_name(pxa2xx_ac97_ac97));
         snprintf(card->longname, sizeof(card->longname),
-                 "%s (%s)", dev->driver->name, card->mixername);
+                 "%s (%s)", dev->dev.driver->name, card->mixername);
 
         snd_card_set_pm_callback(card, pxa2xx_ac97_do_suspend,
                                  pxa2xx_ac97_do_resume, NULL);
         ret = snd_card_register(card);
         if (ret == 0) {
-                dev_set_drvdata(dev, card);
+                platform_set_drvdata(dev, card);
                 return 0;
         }
 
@@ -368,13 +368,13 @@ static int pxa2xx_ac97_probe(struct device *dev)
         return ret;
 }
 
-static int pxa2xx_ac97_remove(struct device *dev)
+static int pxa2xx_ac97_remove(struct platform_device *dev)
 {
-        snd_card_t *card = dev_get_drvdata(dev);
+        snd_card_t *card = platform_get_drvdata(dev);
 
         if (card) {
                 snd_card_free(card);
-                dev_set_drvdata(dev, NULL);
+                platform_set_drvdata(dev, NULL);
                 GCR |= GCR_ACLINK_OFF;
                 free_irq(IRQ_AC97, NULL);
                 pxa_set_cken(CKEN2_AC97, 0);
@@ -383,23 +383,24 @@ static int pxa2xx_ac97_remove(struct device *dev)
         return 0;
 }
 
-static struct device_driver pxa2xx_ac97_driver = {
-        .name           = "pxa2xx-ac97",
-        .bus            = &platform_bus_type,
+static struct platform_driver pxa2xx_ac97_driver = {
         .probe          = pxa2xx_ac97_probe,
         .remove         = pxa2xx_ac97_remove,
         .suspend        = pxa2xx_ac97_suspend,
         .resume         = pxa2xx_ac97_resume,
+        .driver         = {
+                .name   = "pxa2xx-ac97",
+        },
 };
 
 static int __init pxa2xx_ac97_init(void)
 {
-        return driver_register(&pxa2xx_ac97_driver);
+        return platform_driver_register(&pxa2xx_ac97_driver);
 }
 
 static void __exit pxa2xx_ac97_exit(void)
 {
-        driver_unregister(&pxa2xx_ac97_driver);
+        platform_driver_unregister(&pxa2xx_ac97_driver);
 }
 
 module_init(pxa2xx_ac97_init);