ARM: sa1111: provide a generic way to prevent devices from registering

Some platforms don't want certain devices to be registered, because,
eg, the interface is not wired.  Provide a way for platforms to
prevent various devices from being registered via a devid bitmask in
the platform data.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c
index d8492499..8fb80f0 100644
--- a/arch/arm/mach-sa1100/badge4.c
+++ b/arch/arm/mach-sa1100/badge4.c
@@ -66,6 +66,7 @@
 
 static struct sa1111_platform_data sa1111_info = {
 	.irq_base	= IRQ_BOARD_END,
+	.disable_devs	= SA1111_DEVID_PS2_MSE,
 	.enable		= badge4_sa1111_enable,
 	.disable	= badge4_sa1111_disable,
 };