From: "Ivan T. Ivanov" <ivan.ivanov@xxxxxxxxxx>
96Boards specs require all GPIO signals to be at 1.8V.
Limit MPP4, which is PIN28 on J8, to 1.8V(L5).
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
index f881437..d946408 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
@@ -1,4 +1,5 @@
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/pinctrl/qcom,pmic-mpp.h>
&pm8916_gpios {
@@ -30,6 +31,18 @@
&pm8916_mpps {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ls_exp_gpio_f>;
+
+ ls_exp_gpio_f: pm8916_mpp4 {
+ pinconf {
+ pins = "mpp4";
+ function = "digital";
+ output-low;
+ power-source = <PM8916_MPP_L5>; // 1.8V
+ };
+ };
+
pm8916_mpps_leds: pm8916_mpps_leds {
pinconf {
pins = "mpp2", "mpp3";
--
2.10.1
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