of: Only compile OF_DYNAMIC on PowerPC pseries and iseries

Only two architectures use the OF node reference counting and reclaim bits.
There is no need to compile it for the rest of the PowerPC platforms or for
any of the other architectures.  This patch makes iseries and pseries
select CONFIG_OF_DYNAMIC, and makes it default to off for everything else.

It is still safe to turn on CONFIG_OF_DYNAMIC on all architectures, it just
isn't necessary.

v2: Also select OF_DYNAMIC for PPC_CHROMA and MPC885ADS as reported by Michael
    Meuling

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jimi Xenidis <jimix@pobox.com> (for PPC_CHROMA bug fix)
Cc: Rob Herring <rob.herring@calxeda.com>

4 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index ee56a9ea6a79..1fb0b3cddeb3 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -26,6 +26,7 @@ config MPC86XADS
 config MPC885ADS
         bool "MPC885ADS"
         select CPM1
+        select OF_DYNAMIC
         help
           Freescale Semiconductor MPC885 Application Development System (ADS).
           Also known as DUET.
diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig
index b57cda3a0817..63835e09e5cc 100644
--- a/arch/powerpc/platforms/iseries/Kconfig
+++ b/arch/powerpc/platforms/iseries/Kconfig
@@ -1,6 +1,7 @@
 config PPC_ISERIES
         bool "IBM Legacy iSeries"
         depends on PPC64 && PPC_BOOK3S
+        select OF_DYNAMIC
         select PPC_SMP_MUXED_IPI
         select PPC_INDIRECT_PIO
         select PPC_INDIRECT_MMIO
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index ae7b6d41fed3..1114f8f336df 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -3,6 +3,7 @@ config PPC_PSERIES
         bool "IBM pSeries & new (POWER5-based) iSeries"
         select HAVE_PCSPKR_PLATFORM
         select MPIC
+        select OF_DYNAMIC
         select PCI_MSI
         select PPC_XICS
         select PPC_ICP_NATIVE
diff --git a/arch/powerpc/platforms/wsp/Kconfig b/arch/powerpc/platforms/wsp/Kconfig
index 57d22a2f4ba9..79d2225b7608 100644
--- a/arch/powerpc/platforms/wsp/Kconfig
+++ b/arch/powerpc/platforms/wsp/Kconfig
@@ -25,6 +25,7 @@ config PPC_CHROMA
         bool "PowerEN PCIe Chroma Card"
         select EPAPR_BOOT
         select PPC_WSP
+        select OF_DYNAMIC
         default y
 
 endmenu