[PATCH] gpio: pxa: simplify BANK_OFF macro offset calculation

[Rob Herring <robh@xxxxxxxxxx>]

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@xxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Alexandre Courbot <gnurou@xxxxxxxxx>
Cc: linux-gpio@xxxxxxxxxxxxxxx
---
 drivers/gpio/gpio-pxa.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index e45637b..d2324b9 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -61,8 +61,7 @@
 #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;
-- 
2.1.0

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