[PATCH] mtd: hyperbus: fix dependency and build error

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

lib/devres.c, which implements devm_ioremap_resource(), is only built
when CONFIG_HAS_IOMEM is set/enabled, so MTD_HYPERBUS should depend
on HAS_IOMEM.  Fixes a build error and a Kconfig warning (as seen on
UML builds):

WARNING: unmet direct dependencies detected for MTD_COMPLEX_MAPPINGS
  Depends on [n]: MTD [=m] && HAS_IOMEM [=n]
  Selected by [m]:
  - MTD_HYPERBUS [=m] && MTD [=m]

ERROR: "devm_ioremap_resource" [drivers/mtd/hyperbus/hyperbus-core.ko] undefined!

Fixes: dcc7d3446a0f ("mtd: Add support for HyperBus memory devices")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Vignesh Raghavendra <vigneshr@xxxxxx>
Cc: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: linux-mtd@xxxxxxxxxxxxxxxxxxx
---
 drivers/mtd/hyperbus/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- lnx-53-rc4.orig/drivers/mtd/hyperbus/Kconfig
+++ lnx-53-rc4/drivers/mtd/hyperbus/Kconfig
@@ -1,5 +1,6 @@
 menuconfig MTD_HYPERBUS
 	tristate "HyperBus support"
+	depends on HAS_IOMEM
 	select MTD_CFI
 	select MTD_MAP_BANK_WIDTH_2
 	select MTD_CFI_AMDSTD