From da261e1d38f5ed4baaebc45f51e628e7d84a2560 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 12 Aug 2014 11:41:24 -0700 Subject: [PATCH] staging: comedi: cb_pcidas64: tidy up dio_callback_4020() The 8255 driver (*io) callback now includes the comedi_device pointer. Using this we can get the ioremap'ed base address. Instead of passing the (cast) mmio address to subdev_8255_init(), pass the 'iobase' of the 8255 registers (I8255_4020_REG). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidas64.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index 61cb560e1bec..e3bfbd4c5def 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -3380,15 +3380,15 @@ static int dio_callback(struct comedi_device *dev, } static int dio_callback_4020(struct comedi_device *dev, - int dir, int port, int data, unsigned long arg) + int dir, int port, int data, unsigned long iobase) { - void __iomem *iobase = (void __iomem *)arg; + struct pcidas64_private *devpriv = dev->private; if (dir) { - writew(data, iobase + 2 * port); + writew(data, devpriv->main_iobase + iobase + 2 * port); return 0; } - return readw(iobase + 2 * port); + return readw(devpriv->main_iobase + iobase + 2 * port); } static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s, @@ -3751,7 +3751,6 @@ static int setup_subdevices(struct comedi_device *dev) const struct pcidas64_board *thisboard = comedi_board(dev); struct pcidas64_private *devpriv = dev->private; struct comedi_subdevice *s; - void __iomem *dio_8255_iobase; int i; int ret; @@ -3840,9 +3839,8 @@ static int setup_subdevices(struct comedi_device *dev) s = &dev->subdevices[4]; if (thisboard->has_8255) { if (thisboard->layout == LAYOUT_4020) { - dio_8255_iobase = devpriv->main_iobase + I8255_4020_REG; ret = subdev_8255_init(dev, s, dio_callback_4020, - (unsigned long)dio_8255_iobase); + I8255_4020_REG); } else { ret = subdev_8255_init(dev, s, dio_callback, DIO_8255_OFFSET); -- 2.34.1