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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2013-05-26 17:59:20 -0700
committerMark Brown <broonie@linaro.org>2013-06-04 18:51:40 +0100
commitbc2bfffc3866e8c87dde19d5619262a810a51ed8 (patch)
tree031e9a2ff1291edd8ce693d2f2d9bb53a33d068f /drivers/spi
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
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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>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-sh-hspi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 60cfae51c71..eab593eaaaf 100644
--- 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");