arm64: dts: apq8016-sbc: make 1.8v available on LS expansion

96boards mezzanine boards on LS expansion require 1.8v as per 96boards
specifications, so enable the corresponding regulators and make them
always-on.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index 601c0ff802f1925e426856e9ea28b3d4be02dbb9..279af22065a556a91e77f85f5bd1e53b4ea1aeb2 100644 (file)
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -230,9 +230,14 @@
                regulator-max-microvolt = <3337000>;
        };
 
+       /**
+        * 1.8v required on LS expansion
+        * for mezzanine boards
+        */
        l15 {
                regulator-min-microvolt = <1750000>;
                regulator-max-microvolt = <3337000>;
+               regulator-always-on;
        };
 
        l16 {