spi: hspi: fixup long delay time

Current HSPI driver is using msleep(20) on hspi_status_check_timeout(),
but it was too long delay for SPI device.
Bock-W board SPI access was too slow without this patch.
This patch uses udelay(10) for it.

Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 60cfae51c713818ef630f802db2e2e8c747f98d7..eab593eaaafa00f1c269dda9f60a70de72f1d98b 100644 (file)
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -89,7 +89,7 @@ static int hspi_status_check_timeout(struct hspi_priv *hspi, u32 mask, u32 val)
                if ((mask & hspi_read(hspi, SPSR)) == val)
                        return 0;
 
-               msleep(20);
+               udelay(10);
        }
 
        dev_err(hspi->dev, "timeout\n");