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staging: comedi: mf6x4: remove unnecassary masking of digital outputs

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THe 's->state' will always be in range for the 8 digital outputs.
Remove the unnecessary masking of the value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
 drivers/staging/comedi/drivers/mf6x4.c | 6 +++---
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2015-10-06 11:11:12 -07:00 committed by Greg Kroah-Hartman
parent 5970633419
commit 418c971364
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/comedi/drivers/mf6x4.c
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@ -43,8 +43,7 @@
#define MF6X4_ADCTRL_CHAN(x) BIT(chan)
#define MF6X4_DIN_R 0x10
#define MF6X4_DIN_M 0xff
#define MF6X4_DOUT_R 0x10
#define MF6X4_DOUT_M 0xff
#define MF6X4_DOUT_REG 0x10
#define MF6X4_ADSTART_R 0x20
#define MF6X4_DAC_R(x) (0x20 + ((x) * 2))
@ -107,7 +106,7 @@ static int mf6x4_do_insn_bits(struct comedi_device *dev,
unsigned int *data)
{
if (comedi_dio_update_state(s, data))
iowrite16(s->state & MF6X4_DOUT_M, dev->mmio + MF6X4_DOUT_R);
iowrite16(s->state, dev->mmio + MF6X4_DOUT_REG);
data[1] = s->state;