From 418c971364cb6eb3cc94b9e4ec1ae6bf3fc98dc7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 6 Oct 2015 11:11:12 -0700 Subject: [PATCH] staging: comedi: mf6x4: remove unnecassary masking of digital outputs 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 drivers/staging/comedi/drivers/mf6x4.c | 6 +++--- Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/mf6x4.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/staging/comedi/drivers/mf6x4.c b/drivers/staging/comedi/drivers/mf6x4.c index 1e4f080..03f81e94 100644 --- a/drivers/staging/comedi/drivers/mf6x4.c +++ b/drivers/staging/comedi/drivers/mf6x4.c @@ -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; -- 2.7.4