Merge remote-tracking branch 'trivial/for-next'

[karo-tx-linux.git] / drivers / mtd / nand / docg4.c

diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 7c38b8ad4404407650b1290b6dbff894f352547a..1b0265e85a066b2b8903d84645d1df918e4a9ee5 100644 (file)
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -44,6 +44,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/bch.h>
 #include <linux/bitrev.h>
+#include <linux/jiffies.h>
 
 /*
  * In "reliable mode" consecutive 2k pages are used in parallel (in some
@@ -269,7 +270,7 @@ static int poll_status(struct docg4_priv *doc)
         */
 
        uint16_t flash_status;
-       unsigned int timeo;
+       unsigned long timeo;
        void __iomem *docptr = doc->virtadr;
 
        dev_dbg(doc->dev, "%s...\n", __func__);
@@ -277,22 +278,18 @@ static int poll_status(struct docg4_priv *doc)
        /* hardware quirk requires reading twice initially */
        flash_status = readw(docptr + DOC_FLASHCONTROL);
 
-       timeo = 1000;
+       timeo = jiffies + msecs_to_jiffies(200); /* generous timeout */
        do {
                cpu_relax();
                flash_status = readb(docptr + DOC_FLASHCONTROL);
-       } while (!(flash_status & DOC_CTRL_FLASHREADY) && --timeo);
+       } while (!(flash_status & DOC_CTRL_FLASHREADY) &&
+                time_before(jiffies, timeo));
 
-
-       if (!timeo) {
+       if (unlikely(!(flash_status & DOC_CTRL_FLASHREADY))) {
                dev_err(doc->dev, "%s: timed out!\n", __func__);
                return NAND_STATUS_FAIL;
        }
 
-       if (unlikely(timeo < 50))
-               dev_warn(doc->dev, "%s: nearly timed out; %d remaining\n",
-                        __func__, timeo);
-
        return 0;
 }
 
@@ -494,7 +491,7 @@ static uint8_t docg4_read_byte(struct mtd_info *mtd)
                return status;
        }
 
-       dev_warn(doc->dev, "unexpectd call to read_byte()\n");
+       dev_warn(doc->dev, "unexpected call to read_byte()\n");
 
        return 0;
 }