ARM: dts: am3517-evm: Add 'vdd_io_reg' regulator references

There are a few peripherals that generate some extra noise when they
don't have a regulator assigned to them.  This patch assigns them to
their actual tps65023 regulator 'vdd_io_reg' (VDCDC2).

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts
index b834ebe..1d158cf 100644 (file)
--- a/arch/arm/boot/dts/am3517-evm.dts
+++ b/arch/arm/boot/dts/am3517-evm.dts
@@ -127,6 +127,7 @@
                status = "okay";
                pinctrl-names = "default";
                enable-gpios = <&gpio6 16 GPIO_ACTIVE_HIGH>;    /* gpio176, lcd INI */
+               vcc-supply = <&vdd_io_reg>;
 
                port {
                        lcd_in: endpoint {
@@ -154,6 +155,7 @@
        bl: backlight {
                compatible = "pwm-backlight";
                pinctrl-names = "default";
+               power-supply = <&vdd_io_reg>;
                pinctrl-0 = <&backlight_pins>;
                pwms = <&pwm11 0 5000000 0>;
                brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
@@ -210,6 +212,7 @@
                reg = <0x21>;
                gpio-controller;
                #gpio-cells = <2>;
+               vcc-supply = <&vdd_io_reg>;
        };
 };