staging: comedi: ni_stc.h: tidy up NI_M_PFI_FILTER_REG bits

Rename the CamelCase and convert the inline helper functions
that set the bits in this register to macros.
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_mio_common.c

@@ -4419,8 +4419,8 @@ static int ni_config_filter(struct comedi_device *dev,
 		return -ENOTSUPP;
 
 	bits = ni_readl(dev, NI_M_PFI_FILTER_REG);
-	bits &= ~MSeries_PFI_Filter_Select_Mask(pfi_channel);
-	bits |= MSeries_PFI_Filter_Select_Bits(pfi_channel, filter);
+	bits &= ~NI_M_PFI_FILTER_SEL_MASK(pfi_channel);
+	bits |= NI_M_PFI_FILTER_SEL(pfi_channel, filter);
 	ni_writel(dev, bits, NI_M_PFI_FILTER_REG);
 	return 0;
 }

drivers/staging/comedi/drivers/ni_stc.h

@@ -963,6 +963,8 @@ static const struct comedi_lrange range_ni_E_ao_ext;
 #define NI_M_AO_CALIB_REG		0x0a3
 #define NI_M_AO_FIFO_DATA_REG		0x0a4
 #define NI_M_PFI_FILTER_REG		0x0b0
+#define NI_M_PFI_FILTER_SEL(_c, _f)	(((_f) & 0x3) << ((_c) * 2))
+#define NI_M_PFI_FILTER_SEL_MASK(_c)	NI_M_PFI_FILTER_SEL((_c), 0x3)
 #define NI_M_RTSI_FILTER_REG		0x0b4
 #define NI_M_SCXI_LEGACY_COMPAT_REG	0x0bc
 #define NI_M_DAC_DIRECT_DATA_REG(x)	(0x0c0 + ((x) * 4))
@@ -1045,18 +1047,6 @@ static const struct comedi_lrange range_ni_E_ao_ext;
 #define NI_M_AO_REF_ATTENUATION_REG(x)	(0x264 + (x))
 #define NI_M_AO_REF_ATTENUATION_X5	BIT(0)
 
-static inline unsigned MSeries_PFI_Filter_Select_Mask(unsigned channel)
-{
-	return 0x3 << (channel * 2);
-}
-
-static inline unsigned MSeries_PFI_Filter_Select_Bits(unsigned channel,
-						      unsigned filter)
-{
-	return (filter << (channel *
-			   2)) & MSeries_PFI_Filter_Select_Mask(channel);
-}
-
 enum CDIO_DMA_Select_Bits {
 	CDI_DMA_Select_Shift = 0,
 	CDI_DMA_Select_Mask = 0xf,