mtd/ps3vram: Use msleep in waits

Replace the use of udelay() with msleep() in the looping wait routines
ps3vram_notifier_wait() and ps3vram_wait_ring().

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 17 insertions, 23 deletions

diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
index 91cc2afbe14e..d5924142d909 100644
--- a/drivers/mtd/devices/ps3vram.c
+++ b/drivers/mtd/devices/ps3vram.c
@@ -109,22 +109,19 @@ static void ps3vram_notifier_reset(struct mtd_info *mtd)
                 notify[i] = 0xffffffff;
 }
 
-static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
+static int ps3vram_notifier_wait(struct mtd_info *mtd, unsigned int timeout_ms)
 {
         struct ps3vram_priv *priv = mtd->priv;
         u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
-
-        timeout_ms *= 1000;
+        unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
 
         do {
-                if (notify[3] == 0)
+                if (!notify[3])
                         return 0;
+                msleep(1);
+        } while (time_before(jiffies, timeout));
 
-                if (timeout_ms)
-                        udelay(1);
-        } while (timeout_ms--);
-
-        return -1;
+        return -ETIMEDOUT;
 }
 
 static void ps3vram_init_ring(struct mtd_info *mtd)
@@ -135,25 +132,22 @@ static void ps3vram_init_ring(struct mtd_info *mtd)
         priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
 }
 
-static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
+static int ps3vram_wait_ring(struct mtd_info *mtd, unsigned int timeout_ms)
 {
         struct ps3vram_priv *priv = mtd->priv;
+        unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
 
-        /* wait until setup commands are processed */
-        timeout *= 1000;
-        while (--timeout) {
+        do {
                 if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
-                        break;
-                udelay(1);
-        }
-        if (timeout == 0) {
-                dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n",
-                        __func__, __LINE__, priv->ctrl[CTRL_PUT],
-                        priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
-                return -ETIMEDOUT;
-        }
+                        return 0;
+                msleep(1);
+        } while (time_before(jiffies, timeout));
 
-        return 0;
+        dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", __func__,
+                __LINE__, priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
+                priv->ctrl[CTRL_TOP]);
+
+        return -ETIMEDOUT;
 }
 
 static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)