[PATCH 3/3] arm64: dts: apq8096-db820c: always enable regulator LS expansion

srinivas.kandagatla at linaro.org srinivas.kandagatla at linaro.org
Mon Aug 14 04:34:19 PDT 2017


From: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>

1.8v regulator on LS expansion should be left as always to comply
with 96boards spec.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 18c61693529e..0c10bbe55317 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -189,9 +189,15 @@
 					regulator-min-microvolt = <1300000>;
 					regulator-max-microvolt = <1300000>;
 				};
+
+				/**
+				 * 1.8v required on LS expansion
+				 * for mezzanine boards
+				 */
 				s4 {
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
 				};
 				s5 {
 					regulator-min-microvolt = <2150000>;
-- 
2.11.0




More information about the linux-arm-kernel mailing list