[PATCH] powerpc/44x/fsp2: correct dtb reg property for /sdhci@020c0000

From: Ian Campbell
Date: Sat Jul 15 2017 - 05:48:45 EST

Building the split device-tree tree[0] highlighted that upstream commit
9eec6cb142bd ("powerpc/44x/fsp2: Add device tree for FSP2 board") introduced
this warning when building the device tree:

$ make CROSS_COMPILE=powerpc-linux-gnu- ARCH=powerpc fsp2.dtb
CHK scripts/mod/devicetable-offsets.h
DTC arch/powerpc/boot/fsp2.dtb
arch/powerpc/boot/fsp2.dtb: Warning (reg_format): "reg" property in /sdhci@020c0000 has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)

This commit adds the second adress cell as zeroes to resolve the warning. Note:
I have no access to or information about this platform so this is purely a
guess as to the fix. An alternative would be to adjust #address-cells, but
whether that is correct or not depends on the platform.

[0] https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/

Signed-off-by: Ian Campbell <ijc@xxxxxxxxxxxxxx>
Cc: Ivan Mikhaylov <ivan@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
arch/powerpc/boot/dts/fsp2.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/dts/fsp2.dts b/arch/powerpc/boot/dts/fsp2.dts
index 475953ada707..ab6d2346527f 100644
--- a/arch/powerpc/boot/dts/fsp2.dts
+++ b/arch/powerpc/boot/dts/fsp2.dts
@@ -362,7 +362,7 @@
mmc0: sdhci@020c0000 {
compatible = "st,sdhci-stih407", "st,sdhci";
status = "disabled";
- reg = <0x020c0000 0x20000>;
+ reg = <0x00000000 0x020c0000 0x20000>;
reg-names = "mmc";
interrupt-parent = <&UIC1_3>;
interrupts = <21 0x4 22 0x4>;