[WATCHDOG] omap_wdt.c: another ioremap() fix

convert to use ioremap() and __raw_{read/write} friends.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 29 insertions, 21 deletions

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 7de16a3f6849..9c389b16497f 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -71,12 +71,12 @@ static void omap_wdt_ping(struct omap_wdt_dev *wdev)
 {
         void __iomem    *base = wdev->base;
         /* wait for posted write to complete */
-        while ((omap_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+        while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
                 cpu_relax();
         wdt_trgr_pattern = ~wdt_trgr_pattern;
-        omap_writel(wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR));
+        __raw_writel(wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR));
         /* wait for posted write to complete */
-        while ((omap_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+        while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
                 cpu_relax();
         /* reloaded WCRR from WLDR */
 }
@@ -86,11 +86,11 @@ static void omap_wdt_enable(struct omap_wdt_dev *wdev)
         void __iomem *base;
         base = wdev->base;
         /* Sequence to enable the watchdog */
-        omap_writel(0xBBBB, base + OMAP_WATCHDOG_SPR);
-        while ((omap_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+        __raw_writel(0xBBBB, base + OMAP_WATCHDOG_SPR);
+        while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
                 cpu_relax();
-        omap_writel(0x4444, base + OMAP_WATCHDOG_SPR);
-        while ((omap_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+        __raw_writel(0x4444, base + OMAP_WATCHDOG_SPR);
+        while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
                 cpu_relax();
 }
 
@@ -99,11 +99,11 @@ static void omap_wdt_disable(struct omap_wdt_dev *wdev)
         void __iomem *base;
         base = wdev->base;
         /* sequence required to disable watchdog */
-        omap_writel(0xAAAA, base + OMAP_WATCHDOG_SPR);  /* TIMER_MODE */
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+        __raw_writel(0xAAAA, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
                 cpu_relax();
-        omap_writel(0x5555, base + OMAP_WATCHDOG_SPR);  /* TIMER_MODE */
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+        __raw_writel(0x5555, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
                 cpu_relax();
 }
 
@@ -123,10 +123,10 @@ static void omap_wdt_set_timeout(struct omap_wdt_dev *wdev)
         base = wdev->base;
 
         /* just count up at 32 KHz */
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
                 cpu_relax();
-        omap_writel(pre_margin, base + OMAP_WATCHDOG_LDR);
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+        __raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR);
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
                 cpu_relax();
 }
 
@@ -152,10 +152,10 @@ static int omap_wdt_open(struct inode *inode, struct file *file)
         }
 
         /* initialize prescaler */
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
                 cpu_relax();
-        omap_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL);
-        while (omap_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+        __raw_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL);
+        while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
                 cpu_relax();
 
         file->private_data = (void *) wdev;
@@ -224,7 +224,7 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
                 return put_user(0, (int __user *)arg);
         case WDIOC_GETBOOTSTATUS:
                 if (cpu_is_omap16xx())
-                        return put_user(omap_readw(ARM_SYSST),
+                        return put_user(__raw_readw(ARM_SYSST),
                                         (int __user *)arg);
                 if (cpu_is_omap24xx())
                         return put_user(omap_prcm_get_reset_sources(),
@@ -328,7 +328,12 @@ static int __init omap_wdt_probe(struct platform_device *pdev)
                         goto fail;
                 }
         }
-        wdev->base = (void __iomem *) (mem->start);
+        wdev->base = ioremap(res->start, res->end - res->start + 1);
+        if (!wdev->base) {
+                ret = -ENOMEM;
+                goto fail;
+        }
+
         platform_set_drvdata(pdev, wdev);
 
         omap_wdt_disable(wdev);
@@ -344,11 +349,11 @@ static int __init omap_wdt_probe(struct platform_device *pdev)
                 goto fail;
 
         pr_info("OMAP Watchdog Timer Rev 0x%02x: initial timeout %d sec\n",
-                omap_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF,
+                __raw_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF,
                 timer_margin);
 
         /* autogate OCP interface clock */
-        omap_writel(0x01, wdev->base + OMAP_WATCHDOG_SYS_CONFIG);
+        __raw_writel(0x01, wdev->base + OMAP_WATCHDOG_SYS_CONFIG);
 
         omap_wdt_dev = pdev;
 
@@ -363,6 +368,7 @@ fail:
                         clk_put(wdev->mpu_wdt_ick);
                 if (wdev->mpu_wdt_fck)
                         clk_put(wdev->mpu_wdt_fck);
+                iounmap(wdev->base);
                 kfree(wdev);
         }
         if (mem) {
@@ -404,6 +410,8 @@ static int omap_wdt_remove(struct platform_device *pdev)
                 clk_put(wdev->mpu_wdt_fck);
                 wdev->mpu_wdt_fck = NULL;
         }
+        iounmap(wdev->base);
+
         kfree(wdev);
         omap_wdt_dev = NULL;
         return 0;