sf: Use spi_flash_read_common() in write status poll

Instead of using spi_xfer for SPI_XFER_BEGIN and SPI_XFER_END
separatley use common read call spi_flash_read_common() which
does the same.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>

diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 29162b5432ea887ee0b0ebb752fc3b214897900e..2c62b54aa9200fcb8b0bf79ff6fb8cfa9d5f95d6 100644 (file)
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -235,36 +235,25 @@ int spi_flash_cmd_read_fast(struct spi_flash *flash, u32 offset,
 int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
                           u8 cmd, u8 poll_bit)
 {
-       struct spi_slave *spi = flash->spi;
-       unsigned long flags = SPI_XFER_BEGIN;
        unsigned long timebase;
        int ret;
        u8 status;
 
-       if ((spi->is_dual == 1) && (spi->u_page == 1))
-               flags |= SPI_FLASH_U_PAGE;
-
-       ret = spi_xfer(spi, 8, &cmd, NULL, flags);
-       if (ret) {
-               debug("SF: Failed to send command %02x: %d\n", cmd, ret);
-               return ret;
-       }
-
        timebase = get_timer(0);
        do {
                WATCHDOG_RESET();
 
-               ret = spi_xfer(spi, 8, NULL, &status, 0);
-               if (ret)
-                       return -1;
+               ret = spi_flash_read_common(flash, &cmd, 1, &status, 1);
+               if (ret < 0) {
+                       debug("SF: fail to read read status register\n");
+                       return ret;
+               }
 
                if ((status & poll_bit) == 0)
                        break;
 
        } while (get_timer(timebase) < timeout);
 
-       spi_xfer(spi, 0, NULL, NULL, SPI_XFER_END);
-
        if ((status & poll_bit) == 0)
                return 0;