[PATCH] mtd: hyperbus: Fix Kconfig warning

[YueHaibing]

WARNING: unmet direct dependencies detected for MUX_MMIO
  Depends on [n]: MULTIPLEXER [=m] && (OF [=n] || COMPILE_TEST [=n])
  Selected by [m]:
  - HBMC_AM654 [=m] && MTD [=m] && MTD_HYPERBUS [=m]

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/mtd/hyperbus/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/hyperbus/Kconfig b/drivers/mtd/hyperbus/Kconfig
index cff6bbd..769d129 100644
--- a/drivers/mtd/hyperbus/Kconfig
+++ b/drivers/mtd/hyperbus/Kconfig
@@ -14,6 +14,7 @@ if MTD_HYPERBUS
 
 config HBMC_AM654
 	tristate "HyperBus controller driver for AM65x SoC"
+	depends on OF
 	select MULTIPLEXER
 	select MUX_MMIO
 	help
-- 
2.7.4