staging: comedi: ni_tio_internal.h: replace NITIO_Gxx_Joint_Reset_Reg()

The shared "Reset" registers are sequential in the enum ni_gpct_register.
Replace this inline CamelCase function with a simple define.
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/ni_tio.c

@@ -363,7 +363,7 @@ static int ni_tio_second_gate_registers_present(const struct ni_gpct_device
 static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter)
 {
 	write_register(counter, Gi_Reset_Bit(counter->counter_index),
-		       NITIO_Gxx_Joint_Reset_Reg(counter->counter_index));
+		       NITIO_RESET_REG(counter->counter_index));
 }
 
 void ni_tio_init_counter(struct ni_gpct *counter)

drivers/staging/comedi/drivers/ni_tio_internal.h

@@ -31,19 +31,7 @@
 #define NITIO_CNT_MODE_REG(x)		(NITIO_G0_CNT_MODE + (x))
 #define NITIO_GATE2_REG(x)		(NITIO_G0_GATE2 + (x))
 #define NITIO_STATUS_REG(x)		(NITIO_G01_STATUS + ((x) / 2))
-
-static inline enum ni_gpct_register NITIO_Gxx_Joint_Reset_Reg(unsigned idx)
-{
-	switch (idx) {
-	case 0:
-	case 1:
-		return NITIO_G01_RESET;
-	case 2:
-	case 3:
-		return NITIO_G23_RESET;
-	}
-	return 0;
-}
+#define NITIO_RESET_REG(x)		(NITIO_G01_RESET + ((x) / 2))
 
 static inline enum ni_gpct_register NITIO_Gxx_Joint_Status1_Reg(unsigned idx)
 {