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staging: comedi: ni_65xx: factor input filter disable out of (*auto_attach)

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For aesthetics, factor the code that disables the input filters out of
ni_65xx_auto_attach().

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 2014-07-14 12:07:08 -07:00 committed by Greg Kroah-Hartman
parent dd26947342
commit 9233c8db35
1 changed files with 20 additions and 11 deletions
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31
drivers/staging/comedi/drivers/ni_65xx.c
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@ -278,16 +278,29 @@ static const struct ni_65xx_board ni_65xx_boards[] = {
},
};
static inline unsigned ni_65xx_total_num_ports(const struct ni_65xx_board
*board)
{
return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
}
struct ni_65xx_private {
void __iomem *mmio;
};
static void ni_65xx_disable_input_filters(struct comedi_device *dev)
{
const struct ni_65xx_board *board = comedi_board(dev);
struct ni_65xx_private *devpriv = dev->private;
unsigned num_ports;
int i;
num_ports = board->num_dio_ports +
board->num_di_ports +
board->num_do_ports;
/* disable input filtering on all ports */
for (i = 0; i < num_ports; ++i)
writeb(0x00, devpriv->mmio + NI_65XX_FILTER_ENA(i));
/* set filter interval to 0 (32bit reg) */
writel(0x00000000, devpriv->mmio + NI_65XX_FILTER_REG);
}
static int ni_65xx_dio_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
@ -709,11 +722,7 @@ static int ni_65xx_auto_attach(struct comedi_device *dev,
s->cancel = ni_65xx_intr_cancel;
}
for (i = 0; i < ni_65xx_total_num_ports(board); ++i)
writeb(0x00, devpriv->mmio + NI_65XX_FILTER_ENA(i));
/* Set filter interval to 0 (32bit reg) */
writel(0x00000000, devpriv->mmio + NI_65XX_FILTER_REG);
ni_65xx_disable_input_filters(dev);
return 0;
}