OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

gpio: pxa: simplify BANK_OFF macro offset calculation 

The macro BANK_OFF which calculates the base offset for each GPIO port.
The macro is needlessly complex and unreadable. Simplify the
calculation to a simple math operation.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: linux-gpio@vger.kernel.org
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Rob Herring 2015-03-02 15:30:58 -06:00 committed by Linus Walleij
parent b90f8f22ed
commit 1e970b7d6d
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpio/gpio-pxa.c
View File

@ -59,8 +59,7 @@
#define GAFR_OFFSET 0x54
#define ED_MASK_OFFSET 0x9C /* GPIO edge detection for AP side */
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : ((n) > 5 ? 0x200 : 0x100) \
+ (((n) % 3) << 2))
#define BANK_OFF(n) (((n) / 3) << 8) + (((n) % 3) << 2)
int pxa_last_gpio;
static int irq_base;