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authorChristoph Hellwig <hch@lst.de>2019-02-01 12:10:52 +0300
committerChristoph Hellwig <hch@lst.de>2019-02-13 21:19:47 +0300
commit34e04eedd1cf1be714abb0e5976338cc72ccc05f (patch)
tree33b8db35bc620fc1c845e361fc2ae5e72d9d3770 /drivers
parent2b2812961302c38500c1027778e371c895f1cac4 (diff)
downloadlinux-34e04eedd1cf1be714abb0e5976338cc72ccc05f.tar.xz
of: select OF_RESERVED_MEM automatically
The OF_RESERVED_MEM can be used if we have either CMA or the generic declare coherent code built and we support the early flattened DT. So don't bother making it a user visible options that is selected by most configs that fit the above category, but just select it when the requirements are met. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/of/Kconfig5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index ad3fcad4d75b..3607fd2810e4 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -81,10 +81,9 @@ config OF_MDIO
OpenFirmware MDIO bus (Ethernet PHY) accessors
config OF_RESERVED_MEM
- depends on OF_EARLY_FLATTREE
bool
- help
- Helpers to allow for reservation of memory regions
+ depends on OF_EARLY_FLATTREE
+ default y if HAVE_GENERIC_DMA_COHERENT || DMA_CMA
config OF_RESOLVE
bool