From: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
The main 24V regulator will toggle GPIO4_IO23 to signal imminent voltage
loss. Reflect this in the DT, so the OS can take appropriate action when
this happens.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
index bce23d62cd27..80d212acc0c3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
@@ -116,6 +116,11 @@ reg_24v: regulator-24v {
regulator-name = "24V";
regulator-min-microvolt = <24000000>;
regulator-max-microvolt = <24000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_reg24v>;
+ interrupts-extended = <&gpio4 23 IRQ_TYPE_EDGE_FALLING>;
+ system-critical-regulator;
+ regulator-uv-less-critical-window-ms = <50>;
};
reg_can2rs: regulator-can2rs {
@@ -591,6 +596,12 @@ MX8MP_IOMUXC_SAI3_MCLK__PWM4_OUT 0x116
>;
};
+ pinctrl_reg24v: reg24vgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI2_RXD0__GPIO4_IO23 0x154
+ >;
+ };
+
pinctrl_reg_vsd_3v3: regvsd3v3grp {
fsl,pins = <
MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x40
--
2.39.5
