[PATCH] ARM: dts: imx6qdl-gw53xx: add CAN regulator

[PATCH] ARM: dts: imx6qdl-gw53xx: add CAN regulator

[Tim Harvey]

The GW53xx has a tranceiver with a STBY pin connected to an IMX6 GPIO.
Configure this as a regulator to drive it low when CAN is in use.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
index a0710d562766..97288a815d70 100644
--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
@@ -129,6 +129,16 @@ reg_3p3v: regulator-3p3v {
 		regulator-always-on;
 	};
 
+	reg_can1_stby: regulator-can1-stby {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_can1>;
+		compatible = "regulator-fixed";
+		regulator-name = "can1_stby";
+		gpio = <&gpio1 2 GPIO_ACTIVE_LOW>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	reg_usb_h1_vbus: regulator-usb-h1-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "usb_h1_vbus";
@@ -170,6 +180,7 @@ &audmux {
 &can1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexcan1>;
+	xceiver-supply = <&reg_can1_stby>;
 	status = "okay";
 };
 
@@ -600,7 +611,6 @@ pinctrl_flexcan1: flexcan1grp {
 		fsl,pins = <
 			MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX	0x1b0b1
 			MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX	0x1b0b1
-			MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x4001b0b0 /* CAN_STBY */
 		>;
 	};
 
@@ -691,6 +701,12 @@ MX6QDL_PAD_SD1_CMD__PWM4_OUT		0x1b0b1
 		>;
 	};
 
+	pinctrl_reg_can1: regcan1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x4001b0b0 /* CAN_STBY */
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA	0x1b0b1
-- 
2.25.1