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staging: comedi: ni_tio: convert NI_M_Series_RTSI_Clock() to a macro

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The BUG_ON() in this function can never happen.

For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.

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>
This commit is contained in:
H Hartley Sweeten
2014-07-24 10:14:33 -07:00
committed by Greg Kroah-Hartman
parent e09dd2c3c5
commit 9f9d6446b3
1 changed files with 3 additions and 8 deletions
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11
drivers/staging/comedi/drivers/ni_tio.c
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@@ -154,12 +154,7 @@ static inline unsigned NI_M_Series_PFI_Clock(unsigned n)
}
static const unsigned ni_m_series_max_rtsi_channel = 7;
static inline unsigned NI_M_Series_RTSI_Clock(unsigned n)
{
BUG_ON(n > ni_m_series_max_rtsi_channel);
return (n == 7) ? 0x1b : (0xb + n);
}
#define NI_M_RTSI_CLK(x) (((x) == 7) ? 0x1b : (0xb + (x)))
enum ni_660x_gate_select {
NI_660x_Source_Pin_i_Gate_Select = 0x0,
@@ -622,7 +617,7 @@ static unsigned ni_m_series_source_select_bits(unsigned int clock_source)
default:
for (i = 0; i <= ni_m_series_max_rtsi_channel; ++i) {
if (clock_select_bits == NI_GPCT_RTSI_CLOCK_SRC_BITS(i)) {
ni_m_series_clock = NI_M_Series_RTSI_Clock(i);
ni_m_series_clock = NI_M_RTSI_CLK(i);
break;
}
}
@@ -791,7 +786,7 @@ static unsigned ni_m_series_clock_src_select(const struct ni_gpct *counter)
break;
default:
for (i = 0; i <= ni_m_series_max_rtsi_channel; ++i) {
if (input_select == NI_M_Series_RTSI_Clock(i)) {
if (input_select == NI_M_RTSI_CLK(i)) {
clock_source = NI_GPCT_RTSI_CLOCK_SRC_BITS(i);
break;
}