[PATCH V4 3/3] ARM: dts: imx6qdl-sabreauto: add flexcan support

[Joakim Zhang <qiangqing.zhang@xxxxxxx>]

From: Aisheng Dong <aisheng.dong@xxxxxxx>

The flexcan1 is pin conflict with fec. User would make flexcan1 enabled
with fec disabled to use CAN.

Signed-off-by: Aisheng Dong <aisheng.dong@xxxxxxx>
Signed-off-by: Joakim Zhang <qiangqing.zhang@xxxxxxx>
---
V1->V2:
	*using SPDX tag for new files and remove pinctrl-assert-gpios property.
V2->V3:
	*remove the new files due to a pile of DTS files for a single
	 development board with pin sharing among different devices not
	 maintained.
V3->V4:
	*remove pinctrl-assert-gpios proverty in V3.
---
 arch/arm/boot/dts/imx6qdl-sabreauto.dtsi | 47 ++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index a10f0ad0bfb1..c1111b972b46 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -101,6 +101,25 @@
 		enable-active-high;
 	};
 
+	reg_can_en: regulator-can-en {
+		compatible = "regulator-fixed";
+		regulator-name = "can-en";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&max7310_b 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_can_stby: regulator-can-stby {
+		compatible = "regulator-fixed";
+		regulator-name = "can-stby";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&max7310_b 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&reg_can_en>;
+	};
+
 	sound-cs42888 {
 		compatible = "fsl,imx6-sabreauto-cs42888",
 			"fsl,imx-audio-cs42888";
@@ -279,6 +298,20 @@
 	status = "okay";
 };
 
+&can1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	xceiver-supply = <&reg_can_stby>;
+	status = "disabled"; /* pin conflict with fec */
+};
+
+&can2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	xceiver-supply = <&reg_can_stby>;
+	status = "okay";
+};
+
 &gpmi {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_gpmi_nand>;
@@ -494,6 +527,20 @@
 			>;
 		};
 
+		pinctrl_flexcan1: flexcan1grp {
+			fsl,pins = <
+				MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX        0x17059
+				MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX	0x17059
+			>;
+		};
+
+		pinctrl_flexcan2: flexcan2grp {
+			fsl,pins = <
+				MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX	0x17059
+				MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX	0x17059
+			>;
+		};
+
 		pinctrl_gpio_keys: gpiokeysgrp {
 			fsl,pins = <
 				MX6QDL_PAD_SD2_CMD__GPIO1_IO11		0x1b0b0
-- 
2.17.1