[added to the 3.18 stable tree] SSB: fix Kconfig dependencies

[Sasha Levin <sasha.levin@oracle.com>]

From: Adrien Schildknecht <adrien+dev@schischi.me>

This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit 179fa46fb666c8f2aa2bbb1f3114d5d826d59d3d ]

The commit 21400f252a97 ("MIPS: BCM47XX: Make ssb init NVRAM instead of
bcm47xx polling it") introduces a dependency to SSB_SFLASH but did not
add it to the Kconfig.

drivers/ssb/driver_mipscore.c:216:36: error: 'struct ssb_mipscore' has no
member named 'sflash'
  struct ssb_sflash *sflash = &mcore->sflash;
                                    ^
drivers/ssb/driver_mipscore.c:249:12: error: dereferencing pointer to
incomplete type
  if (sflash->present) {
            ^

Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>
Cc: m@bues.ch
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9598/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---
 drivers/ssb/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index 75b3603..f0d22cd 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -130,6 +130,7 @@ config SSB_DRIVER_MIPS
 	bool "SSB Broadcom MIPS core driver"
 	depends on SSB && MIPS
 	select SSB_SERIAL
+	select SSB_SFLASH
 	help
 	  Driver for the Sonics Silicon Backplane attached
 	  Broadcom MIPS core.
-- 
2.1.0