mtd: lpddr: fix Kconfig dependency, for I/O accessors

Not all architectures implement a writel_relaxed() accessor. Hopefully
this will change eventually, but for now, this means lpddr2_nvm.c can't
compile on some architectures.

Let's add an ARM dependency for now, and leave a comment so maybe we can
change this in the future.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Vincenzo Aliberti <vincenzo.aliberti@gmail.com>

diff --git a/drivers/mtd/lpddr/Kconfig b/drivers/mtd/lpddr/Kconfig
index 468f06d..3a19cbe 100644 (file)
--- a/drivers/mtd/lpddr/Kconfig
+++ b/drivers/mtd/lpddr/Kconfig
@@ -19,7 +19,8 @@ config MTD_QINFO_PROBE
            Flash products
 
 config MTD_LPDDR2_NVM
-       depends on MTD
+       # ARM dependency is only for writel_relaxed()
+       depends on MTD && ARM
        tristate "Support for LPDDR2-NVM flash chips"
        help
          This option enables support of PCM memories with a LPDDR2-NVM