From e8f25f6680a8df64409a1fd8bddfe7848ee7c7e0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 9 Oct 2015 11:53:49 -0700
Subject: [PATCH] staging: comedi: adq12b: usleep_range is preferred over
udelay
Fix checkpatch.pl issue:
CHECK: usleep_range is preferred over udelay; see
Documentation/timers/timers-howto.txt
Replace the udelay() with usleep_range() with a reasonable upper limit.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/comedi/drivers/adq12b.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index dbb9d588c729..315050454c26 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -129,7 +129,7 @@ static int adq12b_ai_insn_read(struct comedi_device *dev,
if (val != devpriv->last_ctreg) {
outb(val, dev->iobase + ADQ12B_CTREG);
devpriv->last_ctreg = val;
- udelay(50); /* wait for the mux to settle */
+ usleep_range(50, 100); /* wait for the mux to settle */
}
val = inb(dev->iobase + ADQ12B_ADLOW); /* trigger A/D */
--
2.34.1