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ARM: dts: imx6qdl-apalis: Add sleep state to can interfaces

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This patch prepares the devicetree for the new Ixora V1.2 where we are
able to turn off the supply of the can transceiver. This implies to use
a sleep state on transmission pins in order to prevent backfeeding.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Philippe Schenker 2019-08-27 13:18:27 +00:00 committed by Shawn Guo
parent 3dddbfe64d
commit e01f0fe313
1 changed files with 21 additions and 6 deletions
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27
arch/arm/boot/dts/imx6qdl-apalis.dtsi
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@ -148,14 +148,16 @@ &audmux {
};
&can1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan1>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_flexcan1_default>;
pinctrl-1 = <&pinctrl_flexcan1_sleep>;
status = "disabled";
};
&can2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan2>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_flexcan2_default>;
pinctrl-1 = <&pinctrl_flexcan2_sleep>;
status = "disabled";
};
@ -599,19 +601,32 @@ MX6QDL_PAD_ENET_TXD0__GPIO1_IO30 0x000b1
>;
};
pinctrl_flexcan1: flexcan1grp {
pinctrl_flexcan1_default: flexcan1defgrp {
fsl,pins = <
MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x1b0b0
MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x1b0b0
>;
};
pinctrl_flexcan2: flexcan2grp {
pinctrl_flexcan1_sleep: flexcan1slpgrp {
fsl,pins = <
MX6QDL_PAD_GPIO_7__GPIO1_IO07 0x0
MX6QDL_PAD_GPIO_8__GPIO1_IO08 0x0
>;
};
pinctrl_flexcan2_default: flexcan2defgrp {
fsl,pins = <
MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX 0x1b0b0
MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x1b0b0
>;
};
pinctrl_flexcan2_sleep: flexcan2slpgrp {
fsl,pins = <
MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x0
MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x0
>;
};
pinctrl_gpio_bl_on: gpioblon {
fsl,pins = <