mtd: nand: omap: Switch to using GPMC-NAND ops for writebuffer empty check

Instead of accessing the gpmc_status register directly start
using the gpmc_nand_ops->nand_writebuffer_empty() helper
to check write buffer empty status.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index cba9bf0..98023d5 100644 (file)
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -291,14 +291,13 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
 {
        struct omap_nand_info *info = mtd_to_omap(mtd);
        u_char *p = (u_char *)buf;
-       u32     status = 0;
+       bool status;
 
        while (len--) {
                iowrite8(*p++, info->nand.IO_ADDR_W);
                /* wait until buffer is available for write */
                do {
-                       status = readl(info->reg.gpmc_status) &
-                                       STATUS_BUFF_EMPTY;
+                       status = info->ops->nand_writebuffer_empty();
                } while (!status);
        }
 }
@@ -326,7 +325,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
 {
        struct omap_nand_info *info = mtd_to_omap(mtd);
        u16 *p = (u16 *) buf;
-       u32     status = 0;
+       bool status;
        /* FIXME try bursts of writesw() or DMA ... */
        len >>= 1;
 
@@ -334,8 +333,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
                iowrite16(*p++, info->nand.IO_ADDR_W);
                /* wait until buffer is available for write */
                do {
-                       status = readl(info->reg.gpmc_status) &
-                                       STATUS_BUFF_EMPTY;
+                       status = info->ops->nand_writebuffer_empty();
                } while (!status);
        }
 }