Replace the DIO200_[XYZ]CLK_SEL defines with a macro that returns the
correct register offset.

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
v2: no change

 drivers/staging/comedi/drivers/amplc_dio200_common.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c 
b/drivers/staging/comedi/drivers/amplc_dio200_common.c
index 26aad70..ab87f2e 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
@@ -32,9 +32,7 @@
 /* 200 series registers */
 #define DIO200_IO_SIZE         0x20
 #define DIO200_PCIE_IO_SIZE    0x4000
-#define DIO200_XCLK_SCE                0x18    /* Group X clock selection 
register */
-#define DIO200_YCLK_SCE                0x19    /* Group Y clock selection 
register */
-#define DIO200_ZCLK_SCE                0x1a    /* Group Z clock selection 
register */
+#define DIO200_CLK_SCE(x)      (0x18 + (x))    /* Group X/Y/Z clock sel reg */
 #define DIO200_XGAT_SCE                0x1b    /* Group X gate selection 
register */
 #define DIO200_YGAT_SCE                0x1c    /* Group Y gate selection 
register */
 #define DIO200_ZGAT_SCE                0x1d    /* Group Z gate selection 
register */
@@ -733,7 +731,7 @@ static int dio200_subdev_8254_init(struct comedi_device 
*dev,
        if (board->has_clk_gat_sce) {
                /* Derive CLK_SCE and GAT_SCE register offsets from
                 * 8254 offset. */
-               subpriv->clk_sce_ofs = DIO200_XCLK_SCE + (offset >> 3);
+               subpriv->clk_sce_ofs = DIO200_CLK_SCE(offset >> 3);
                subpriv->gat_sce_ofs = DIO200_XGAT_SCE + (offset >> 3);
                subpriv->which = (offset >> 2) & 1;
        }
-- 
2.3.0

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