ARM: dts: sun5i-a10s-wobo-i5: Enable ldo4 too

It seems that the wifi chip is powered by both ldo3 and ldo4 tied together and that using only one results in the wifi-chip dropping of the USB bus sometimes.

Ideally we would have a proper way of modelling this (this is being worked on), but currently we do not. This is not an issue since we need to keep these regulators always-on anyways, due to these boards crashing when ldo3/4 get turned back on after having been turned off.

---
 arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

index 9fea918..52d18ca 100644
@@ -195,7 +195,14 @@
 	regulator-always-on;
 	regulator-min-microvolt = <3300000>;
 	regulator-max-microvolt = <3300000>;
-	regulator-name = "vcc-wifi";
+	regulator-name = "vcc-wifi1";
+};
+
+&reg_ldo4 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi2";
 };
 
 &reg_usb1_vbus {

2.7.4

Applied, thanks!
Maxime

Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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