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ARM: dts: imx6qdl-gw52xx: add CAN regulator

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The GW52xx has a transceiver 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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Tim Harvey 2022-09-16 08:28:36 -07:00 committed by Shawn Guo
parent 6769089ecb
commit 2069c5265b
1 changed files with 17 additions and 1 deletions
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18
arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
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@ -137,6 +137,16 @@
regulator-always-on;
};
reg_can1_stby: regulator-can1-stby {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_can1>;
regulator-name = "can1_stby";
gpio = <&gpio1 9 GPIO_ACTIVE_LOW>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
reg_usb_otg_vbus: regulator-usb-otg-vbus {
compatible = "regulator-fixed";
regulator-name = "usb_otg_vbus";
@ -170,6 +180,7 @@
&can1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan1>;
xceiver-supply = <&reg_can1_stby>;
status = "okay";
};
@ -612,7 +623,6 @@
fsl,pins = <
MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x1b0b1
MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x1b0b1
MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* CAN_STBY */
>;
};
@ -702,6 +712,12 @@
>;
};
pinctrl_reg_can1: regcan1grp {
fsl,pins = <
MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* CAN_STBY */
>;
};
pinctrl_uart1: uart1grp {
fsl,pins = <
MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1