[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>

2 files changed, 35 insertions, 34 deletions

diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index f31e247b2cbe..ee8f8a0420d1 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -428,9 +428,8 @@ static irqreturn_t pxamci_detect_irq(int irq, void *devid, struct pt_regs *regs)
         return IRQ_HANDLED;
 }
 
-static int pxamci_probe(struct device *dev)
+static int pxamci_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         struct mmc_host *mmc;
         struct pxamci_host *host = NULL;
         struct resource *r;
@@ -445,7 +444,7 @@ static int pxamci_probe(struct device *dev)
         if (!r)
                 return -EBUSY;
 
-        mmc = mmc_alloc_host(sizeof(struct pxamci_host), dev);
+        mmc = mmc_alloc_host(sizeof(struct pxamci_host), &pdev->dev);
         if (!mmc) {
                 ret = -ENOMEM;
                 goto out;
@@ -474,7 +473,7 @@ static int pxamci_probe(struct device *dev)
                          host->pdata->ocr_mask :
                          MMC_VDD_32_33|MMC_VDD_33_34;
 
-        host->sg_cpu = dma_alloc_coherent(dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
+        host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
         if (!host->sg_cpu) {
                 ret = -ENOMEM;
                 goto out;
@@ -511,10 +510,10 @@ static int pxamci_probe(struct device *dev)
         if (ret)
                 goto out;
 
-        dev_set_drvdata(dev, mmc);
+        platform_set_drvdata(pdev, mmc);
 
         if (host->pdata && host->pdata->init)
-                host->pdata->init(dev, pxamci_detect_irq, mmc);
+                host->pdata->init(&pdev->dev, pxamci_detect_irq, mmc);
 
         mmc_add_host(mmc);
 
@@ -527,7 +526,7 @@ static int pxamci_probe(struct device *dev)
                 if (host->base)
                         iounmap(host->base);
                 if (host->sg_cpu)
-                        dma_free_coherent(dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
+                        dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
         }
         if (mmc)
                 mmc_free_host(mmc);
@@ -535,17 +534,17 @@ static int pxamci_probe(struct device *dev)
         return ret;
 }
 
-static int pxamci_remove(struct device *dev)
+static int pxamci_remove(struct platform_device *pdev)
 {
-        struct mmc_host *mmc = dev_get_drvdata(dev);
+        struct mmc_host *mmc = platform_get_drvdata(pdev);
 
-        dev_set_drvdata(dev, NULL);
+        platform_set_drvdata(pdev, NULL);
 
         if (mmc) {
                 struct pxamci_host *host = mmc_priv(mmc);
 
                 if (host->pdata && host->pdata->exit)
-                        host->pdata->exit(dev, mmc);
+                        host->pdata->exit(&pdev->dev, mmc);
 
                 mmc_remove_host(mmc);
 
@@ -560,7 +559,7 @@ static int pxamci_remove(struct device *dev)
                 free_irq(host->irq, host);
                 pxa_free_dma(host->dma);
                 iounmap(host->base);
-                dma_free_coherent(dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
+                dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
 
                 release_resource(host->res);
 
@@ -570,9 +569,9 @@ static int pxamci_remove(struct device *dev)
 }
 
 #ifdef CONFIG_PM
-static int pxamci_suspend(struct device *dev, pm_message_t state)
+static int pxamci_suspend(struct platform_device *dev, pm_message_t state)
 {
-        struct mmc_host *mmc = dev_get_drvdata(dev);
+        struct mmc_host *mmc = platform_get_drvdata(dev);
         int ret = 0;
 
         if (mmc)
@@ -581,9 +580,9 @@ static int pxamci_suspend(struct device *dev, pm_message_t state)
         return ret;
 }
 
-static int pxamci_resume(struct device *dev)
+static int pxamci_resume(struct platform_device *dev)
 {
-        struct mmc_host *mmc = dev_get_drvdata(dev);
+        struct mmc_host *mmc = platform_get_drvdata(dev);
         int ret = 0;
 
         if (mmc)
@@ -596,23 +595,24 @@ static int pxamci_resume(struct device *dev)
 #define pxamci_resume   NULL
 #endif
 
-static struct device_driver pxamci_driver = {
-        .name           = DRIVER_NAME,
-        .bus            = &platform_bus_type,
+static struct platform_driver pxamci_driver = {
         .probe          = pxamci_probe,
         .remove         = pxamci_remove,
         .suspend        = pxamci_suspend,
         .resume         = pxamci_resume,
+        .driver         = {
+                .name   = DRIVER_NAME,
+        },
 };
 
 static int __init pxamci_init(void)
 {
-        return driver_register(&pxamci_driver);
+        return platform_driver_register(&pxamci_driver);
 }
 
 static void __exit pxamci_exit(void)
 {
-        driver_unregister(&pxamci_driver);
+        platform_driver_unregister(&pxamci_driver);
 }
 
 module_init(pxamci_init);
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c
index e954b8354fef..ea23a31fac90 100644
--- a/drivers/mmc/wbsd.c
+++ b/drivers/mmc/wbsd.c
@@ -1932,14 +1932,14 @@ static void __devexit wbsd_shutdown(struct device* dev, int pnp)
  * Non-PnP
  */
 
-static int __devinit wbsd_probe(struct device* dev)
+static int __devinit wbsd_probe(struct platform_device* dev)
 {
-        return wbsd_init(dev, io, irq, dma, 0);
+        return wbsd_init(&dev->dev, io, irq, dma, 0);
 }
 
-static int __devexit wbsd_remove(struct device* dev)
+static int __devexit wbsd_remove(struct platform_device* dev)
 {
-        wbsd_shutdown(dev, 0);
+        wbsd_shutdown(&dev->dev, 0);
 
         return 0;
 }
@@ -1983,9 +1983,9 @@ static void __devexit wbsd_pnp_remove(struct pnp_dev * dev)
 
 #ifdef CONFIG_PM
 
-static int wbsd_suspend(struct device *dev, pm_message_t state)
+static int wbsd_suspend(struct platform_device *dev, pm_message_t state)
 {
-        struct mmc_host *mmc = dev_get_drvdata(dev);
+        struct mmc_host *mmc = platform_get_drvdata(dev);
         struct wbsd_host *host;
         int ret;
 
@@ -2005,9 +2005,9 @@ static int wbsd_suspend(struct device *dev, pm_message_t state)
         return 0;
 }
 
-static int wbsd_resume(struct device *dev)
+static int wbsd_resume(struct platform_device *dev)
 {
-        struct mmc_host *mmc = dev_get_drvdata(dev);
+        struct mmc_host *mmc = platform_get_drvdata(dev);
         struct wbsd_host *host;
 
         if (!mmc)
@@ -2038,14 +2038,15 @@ static int wbsd_resume(struct device *dev)
 
 static struct platform_device *wbsd_device;
 
-static struct device_driver wbsd_driver = {
-        .name           = DRIVER_NAME,
-        .bus            = &platform_bus_type,
+static struct platform_driver wbsd_driver = {
         .probe          = wbsd_probe,
         .remove         = wbsd_remove,
 
         .suspend        = wbsd_suspend,
         .resume         = wbsd_resume,
+        .driver         = {
+                .name   = DRIVER_NAME,
+        },
 };
 
 #ifdef CONFIG_PNP
@@ -2085,7 +2086,7 @@ static int __init wbsd_drv_init(void)
 
         if (nopnp)
         {
-                result = driver_register(&wbsd_driver);
+                result = platform_driver_register(&wbsd_driver);
                 if (result < 0)
                         return result;
 
@@ -2111,7 +2112,7 @@ static void __exit wbsd_drv_exit(void)
         {
                 platform_device_unregister(wbsd_device);
 
-                driver_unregister(&wbsd_driver);
+                platform_driver_unregister(&wbsd_driver);
         }
 
         DBG("unloaded\n");