mailbox: altera: Add dependency on HAS_IOMEM
Not all architectures have io memory.
Fixes:
drivers/built-in.o: In function `altera_mbox_probe':
mailbox-altera.c:(.text+0x409fd2): undefined reference to `devm_ioremap_resource'
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index 84b0a2d..4a418d2 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -56,6 +56,7 @@
config ALTERA_MBOX
tristate "Altera Mailbox"
+ depends on HAS_IOMEM
help
An implementation of the Altera Mailbox soft core. It is used
to send message between processors. Say Y here if you want to use the