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staging: comedi: s626: specify bitshift for encoder A clock source

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When setting the clock source for one of the 'A' encoders to operate in
"counter" mode in `s626_set_mode_a()`, bitshift the clock source value by
`S626_CRABIT_CLKSRC_A` for consistency with the other modes.  This has
no effect on the value since `S626_CRABIT_CLKSRC_A` is 0.

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 2013-10-18 14:40:50 +01:00 committed by Greg Kroah-Hartman
parent 6c661434f9
commit 2e179e428c
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/comedi/drivers/s626.c
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@ -864,7 +864,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
break;
default: /* Counter Mode: */
/* Select ENC_C and ENC_D as clock/direction inputs. */
cra |= S626_CLKSRC_COUNTER;
cra |= S626_CLKSRC_COUNTER << S626_CRABIT_CLKSRC_A;
/* Clock polarity is passed through. */
cra |= (setup & S626_STDMSK_CLKPOL) <<
(S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL);