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staging: comedi: gsc_hpdi: usleep_range is preferred over udelay

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Fix checkpatch issue: "CHECK: usleep_range is preferred over udelay; see
Documentation/timers/timers-howto.txt".  `udelay()` is only called once
from a place where sleeping is allowed.  Replace it with a call to
`usleep_range()` with a reasonable upper limit.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2015-05-05 18:47:26 +01:00 • committed by Greg Kroah-Hartman
parent e899a4165c
commit 7b7afb469c
1 changed files with 1 additions and 1 deletions
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drivers/staging/comedi/drivers/gsc_hpdi.c
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@ -520,7 +520,7 @@ static int gsc_hpdi_init(struct comedi_device *dev)
/* wait 10usec after reset before accessing fifos */
writel(BOARD_RESET_BIT, dev->mmio + BOARD_CONTROL_REG);
udelay(10);
usleep_range(10, 1000);
writel(ALMOST_EMPTY_BITS(32) | ALMOST_FULL_BITS(32),
dev->mmio + RX_PROG_ALMOST_REG);