arm: exynos5: dts: Add adc to device tree

Having the ADC in the device tree allows us to properly specify its
regulator among other benefits.

Note that this needs a followon CL to add the regulator to the device
trees of individual boards.

BUG=chrome-os-partner:11688
TEST=In next CL I add dts definition to board then I see in dmesg:
  [    0.863241] s3c-adc 12d10000.adc: attached adc driver

Change-Id: Id1f6e6687ce7f86e76124559a258a9f9c2792565
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/28986
Reviewed-by: Olof Johansson <olofj@chromium.org>

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 2beec0b..decaa99 100755 (executable)
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -276,6 +276,12 @@
                #size-cells = <0>;
        };
 
+       adc@12D10000 {
+               compatible = "samsung,exynos5-adc";
+               reg = <0x12D10000 0x100>;
+               interrupts = <0 106 0>;
+       };
+
        sysmmu_2: sysmmu@0x10A60000 {
                compatible = "samsung,s5p-sysmmu";
                reg = <0x10A60000 0x100>;