ARM: dts: phycore-imx6: set buck regulator modes explicitly

This patch sets initial buck regulator modes explicitly to a state this
hardware needs. So a wrong initial mode set by bootloader or pmic itself
does not interfere anymore.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi

@@ -5,6 +5,7 @@
  */
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/regulator/dlg,da9063-regulator.h>
 
 / {
 	aliases {
@@ -109,6 +110,7 @@ vdd_arm: buck1 {
 				regulator-name = "vdd_arm";
 				regulator-min-microvolt = <730000>;
 				regulator-max-microvolt = <1380000>;
+				regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>;
 				regulator-always-on;
 			};
 
@@ -116,6 +118,7 @@ vdd_soc: buck2 {
 				regulator-name = "vdd_soc";
 				regulator-min-microvolt = <730000>;
 				regulator-max-microvolt = <1380000>;
+				regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>;
 				regulator-always-on;
 			};
 
@@ -123,6 +126,7 @@ vdd_ddr3_1p5: buck3 {
 				regulator-name = "vdd_ddr3";
 				regulator-min-microvolt = <1500000>;
 				regulator-max-microvolt = <1500000>;
+				regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>;
 				regulator-always-on;
 			};
 
@@ -130,6 +134,7 @@ vdd_eth_1p2: buck4 {
 				regulator-name = "vdd_eth";
 				regulator-min-microvolt = <1200000>;
 				regulator-max-microvolt = <1200000>;
+				regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>;
 				regulator-always-on;
 			};