1 files changed, 24 insertions, 27 deletions

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 819516b35a79..a01d796d1eeb 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -25,12 +25,12 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/random.h>
+#include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/hw_random.h>
 
 #include <asm/io.h>
-#include <asm/hardware/clock.h>
 
 #define RNG_OUT_REG             0x00            /* Output register */
 #define RNG_STAT_REG            0x04            /* Status register
@@ -52,7 +52,7 @@
 
 static void __iomem *rng_base;
 static struct clk *rng_ick;
-static struct device *rng_dev;
+static struct platform_device *rng_dev;
 
 static u32 omap_rng_read_reg(int reg)
 {
@@ -83,9 +83,8 @@ static struct hwrng omap_rng_ops = {
         .data_read      = omap_rng_data_read,
 };
 
-static int __init omap_rng_probe(struct device *dev)
+static int __init omap_rng_probe(struct platform_device *pdev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
         struct resource *res, *mem;
         int ret;
 
@@ -95,16 +94,14 @@ static int __init omap_rng_probe(struct device *dev)
          */
         BUG_ON(rng_dev);
 
-        if (cpu_is_omap24xx()) {
+        if (cpu_is_omap24xx()) {
                 rng_ick = clk_get(NULL, "rng_ick");
                 if (IS_ERR(rng_ick)) {
-                        dev_err(dev, "Could not get rng_ick\n");
+                        dev_err(&pdev->dev, "Could not get rng_ick\n");
                         ret = PTR_ERR(rng_ick);
                         return ret;
-                }
-                else {
-                        clk_use(rng_ick);
-                }
+                } else
+                        clk_enable(rng_ick);
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -117,7 +114,7 @@ static int __init omap_rng_probe(struct device *dev)
         if (mem == NULL)
                 return -EBUSY;
 
-        dev_set_drvdata(dev, mem);
+        dev_set_drvdata(&pdev->dev, mem);
         rng_base = (u32 __iomem *)io_p2v(res->start);
 
         ret = hwrng_register(&omap_rng_ops);
@@ -127,25 +124,25 @@ static int __init omap_rng_probe(struct device *dev)
                 return ret;
         }
 
-        dev_info(dev, "OMAP Random Number Generator ver. %02x\n",
+        dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
                 omap_rng_read_reg(RNG_REV_REG));
         omap_rng_write_reg(RNG_MASK_REG, 0x1);
 
-        rng_dev = dev;
+        rng_dev = pdev;
 
         return 0;
 }
 
-static int __exit omap_rng_remove(struct device *dev)
+static int __exit omap_rng_remove(struct platform_device *pdev)
 {
-        struct resource *mem = dev_get_drvdata(dev);
+        struct resource *mem = dev_get_drvdata(&pdev->dev);
 
         hwrng_unregister(&omap_rng_ops);
 
         omap_rng_write_reg(RNG_MASK_REG, 0x0);
 
         if (cpu_is_omap24xx()) {
-                clk_unuse(rng_ick);
+                clk_disable(rng_ick);
                 clk_put(rng_ick);
         }
 
@@ -157,18 +154,16 @@ static int __exit omap_rng_remove(struct device *dev)
 
 #ifdef CONFIG_PM
 
-static int omap_rng_suspend(struct device *dev, pm_message_t message, u32 level)
+static int omap_rng_suspend(struct platform_device *pdev, pm_message_t message)
 {
         omap_rng_write_reg(RNG_MASK_REG, 0x0);
-
         return 0;
 }
 
-static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level)
+static int omap_rng_resume(struct platform_device *pdev)
 {
         omap_rng_write_reg(RNG_MASK_REG, 0x1);
-
-        return 1;
+        return 0;
 }
 
 #else
@@ -179,9 +174,11 @@ static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level)
 #endif
 
 
-static struct device_driver omap_rng_driver = {
-        .name           = "omap_rng",
-        .bus            = &platform_bus_type,
+static struct platform_driver omap_rng_driver = {
+        .driver = {
+                .name           = "omap_rng",
+                .owner          = THIS_MODULE,
+        },
         .probe          = omap_rng_probe,
         .remove         = __exit_p(omap_rng_remove),
         .suspend        = omap_rng_suspend,
@@ -193,12 +190,12 @@ static int __init omap_rng_init(void)
         if (!cpu_is_omap16xx() && !cpu_is_omap24xx())
                 return -ENODEV;
 
-        return driver_register(&omap_rng_driver);
+        return platform_driver_register(&omap_rng_driver);
 }
 
 static void __exit omap_rng_exit(void)
 {
-        driver_unregister(&omap_rng_driver);
+        platform_driver_unregister(&omap_rng_driver);
 }
 
 module_init(omap_rng_init);