A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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spi: hspi: fixup long delay time

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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 <[email protected]>
Signed-off-by: Kuninori Morimoto <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Kuninori Morimoto 2013-05-26 17:59:20 -07:00 • committed by Mark Brown
commit bc2bfffc38
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-sh-hspi.c
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@ -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");