[PATCH] mailbox: altera: Add dependency on HAS_IOMEM

[Richard Weinberger]

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@xxxxxx>
---
 drivers/mailbox/Kconfig | 1 +
 1 file changed, 1 insertion(+)

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 PCC
 
 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
-- 
1.8.4.5

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