Documentation: dt-bindings: update exynos-adc.txt with syscon handle

This patch updates the DT bindings for ADC in exynos-adc.txt with the
syscon phandle to the ADC nodes.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
To: devicetree@vger.kernel.org
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
index 709efaa..c368210 100644 (file)
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
@@ -43,13 +43,16 @@ Required properties:
                                   compatible ADC block)
 - vdd-supply           VDD input supply.
 
+- samsung,syscon-phandle Contains the PMU system controller node
+                       (To access the ADC_PHY register on Exynos5250/5420/5800/3250)
+
 Note: child nodes can be added for auto probing from device tree.
 
 Example: adding device info in dtsi file
 
 adc: adc@12D10000 {
        compatible = "samsung,exynos-adc-v1";
-       reg = <0x12D10000 0x100>, <0x10040718 0x4>;
+       reg = <0x12D10000 0x100>;
        interrupts = <0 106 0>;
        #io-channel-cells = <1>;
        io-channel-ranges;
@@ -58,13 +61,14 @@ adc: adc@12D10000 {
        clock-names = "adc";
 
        vdd-supply = <&buck5_reg>;
+       samsung,syscon-phandle = <&pmu_system_controller>;
 };
 
 Example: adding device info in dtsi file for Exynos3250 with additional sclk
 
 adc: adc@126C0000 {
        compatible = "samsung,exynos3250-adc", "samsung,exynos-adc-v2;
-       reg = <0x126C0000 0x100>, <0x10020718 0x4>;
+       reg = <0x126C0000 0x100>;
        interrupts = <0 137 0>;
        #io-channel-cells = <1>;
        io-channel-ranges;
@@ -73,6 +77,7 @@ adc: adc@126C0000 {
        clock-names = "adc", "sclk";
 
        vdd-supply = <&buck5_reg>;
+       samsung,syscon-phandle = <&pmu_system_controller>;
 };
 
 Example: Adding child nodes in dts file