staging: comedi: mf6x4: remove unnecassary masking of digital outputs (418c9713) · Commits · 戴 / test

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:

drivers/staging/comedi/drivers/mf6x4.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -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;