diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-04-29 12:59:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-03 20:06:35 -0400 |
| commit | 90c32ce300fb79f45d55803bc021c4e49ed9b85f (patch) | |
| tree | d4e6d494bcc81325aaaab3698bfe87f118e6a53b | |
| parent | e72f7ad46e73b5cd372cdf6834d0dd0e0000d7ad (diff) | |
staging: comedi: amplc_pci244: clarify 8254 timer programming
Refactor the 8254 timer programming to use the i8254_set_mode()
and i8254_write() helpers instead of i8254_load(). This allows
us to use the I8254_MODE* defines to clarify the code.
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>
| -rw-r--r-- | drivers/staging/comedi/drivers/amplc_pci224.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 3002156e7e79..c2b352c3c6a6 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -868,6 +868,7 @@ static void pci224_ao_start_pacer(struct comedi_device *dev, struct comedi_subdevice *s) { struct pci224_private *devpriv = dev->private; + unsigned long timer_base = devpriv->iobase1 + PCI224_Z2_CT0; /* * The output of timer Z2-0 will be used as the scan trigger @@ -881,13 +882,13 @@ static void pci224_ao_start_pacer(struct comedi_device *dev, /* Z2-2 needs 10 MHz clock. */ outb(CLK_CONFIG(2, CLK_10MHZ), devpriv->iobase1 + PCI224_ZCLK_SCE); /* Load Z2-2 mode (2) and counter (div1). */ - i8254_load(devpriv->iobase1 + PCI224_Z2_CT0, 0, - 2, devpriv->cached_div1, 2); + i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY); + i8254_write(timer_base, 0, 2, devpriv->cached_div1); /* Z2-0 is clocked from Z2-2's output. */ outb(CLK_CONFIG(0, CLK_OUTNM1), devpriv->iobase1 + PCI224_ZCLK_SCE); /* Load Z2-0 mode (2) and counter (div2). */ - i8254_load(devpriv->iobase1 + PCI224_Z2_CT0, 0, - 0, devpriv->cached_div2, 2); + i8254_set_mode(timer_base, 0, 0, I8254_MODE2 | I8254_BINARY); + i8254_write(timer_base, 0, 0, devpriv->cached_div2); } static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |