From 22e09dff089fe93d6e3ef7cc0fb8f645a87153c6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 29 Apr 2014 12:59:57 -0700 Subject: [PATCH] staging: comedi: ni_at_a2150: 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 Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_at_a2150.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index fefd97e2344d..f8d6bfce17e6 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -403,6 +403,7 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) struct a2150_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; + unsigned long timer_base = dev->iobase + I8253_BASE_REG; unsigned long lock_flags; unsigned int old_config_bits = devpriv->config_bits; unsigned int trigger_bits; @@ -470,7 +471,8 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG); /* may need to wait 72 sampling periods if timing was changed */ - i8254_load(dev->iobase + I8253_BASE_REG, 0, 2, 72, 0); + i8254_set_mode(timer_base, 0, 2, I8254_MODE0 | I8254_BINARY); + i8254_write(timer_base, 0, 2, 72); /* setup start triggering */ trigger_bits = 0; -- 2.20.1