[MTD] [NAND] at91_nand: use at91_nand_{en,dis}able consistently.

Use at91_nand_enable(), at91_nand_disable() to manipulate enable_pin.
No functional changes.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c
index 414ceaecdb3a2058bbba13def192553ed40ce29f..0adb287027a249409062c5ba6a46cadc717f50a8 100644 (file)
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -93,6 +93,24 @@ struct at91_nand_host {
        void __iomem            *ecc;
 };
 
+/*
+ * Enable NAND.
+ */
+static void at91_nand_enable(struct at91_nand_host *host)
+{
+       if (host->board->enable_pin)
+               at91_set_gpio_value(host->board->enable_pin, 0);
+}
+
+/*
+ * Disable NAND.
+ */
+static void at91_nand_disable(struct at91_nand_host *host)
+{
+       if (host->board->enable_pin)
+               at91_set_gpio_value(host->board->enable_pin, 1);
+}
+
 /*
  * Hardware specific access to control-lines
  */
@@ -101,11 +119,11 @@ static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
        struct nand_chip *nand_chip = mtd->priv;
        struct at91_nand_host *host = nand_chip->priv;
 
-       if (host->board->enable_pin && (ctrl & NAND_CTRL_CHANGE)) {
+       if (ctrl & NAND_CTRL_CHANGE) {
                if (ctrl & NAND_NCE)
-                       at91_set_gpio_value(host->board->enable_pin, 0);
+                       at91_nand_enable(host);
                else
-                       at91_set_gpio_value(host->board->enable_pin, 1);
+                       at91_nand_disable(host);
        }
        if (cmd == NAND_CMD_NONE)
                return;
@@ -127,24 +145,6 @@ static int at91_nand_device_ready(struct mtd_info *mtd)
        return at91_get_gpio_value(host->board->rdy_pin);
 }
 
-/*
- * Enable NAND.
- */
-static void at91_nand_enable(struct at91_nand_host *host)
-{
-       if (host->board->enable_pin)
-               at91_set_gpio_value(host->board->enable_pin, 0);
-}
-
-/*
- * Disable NAND.
- */
-static void at91_nand_disable(struct at91_nand_host *host)
-{
-       if (host->board->enable_pin)
-               at91_set_gpio_value(host->board->enable_pin, 1);
-}
-
 /*
  * write oob for small pages
  */