Commit bc2bfffc authored May 26, 2013 by Kuninori Morimoto Committed by Mark Brown Jun 04, 2013

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>

parent f722406f

drivers/spi/spi-sh-hspi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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");