[PATCH v3 1/4] ARM: dts: vf-colibri: apply the EXT_IO pin group

[Mehmet Fide]

From: Mehmet Fide <mehmet.fide at screeningeagle.com>

pinctrl_gpio_ext describes the three Colibri EXT_IO pins, but no node
references it, so the pin controller never applies it and the pads keep
whatever mux and bias they came up with. It is the only pin group in the
Vybrid Colibri device trees that is defined and never used.

The three pins are GPIOs on gpio2 and belong to no device, so hog the
group on that controller. Referencing it from &iomuxc would work too, but
the pin controller would then depend on one of its own children, which
fw_devlink reports as a dependency cycle.

Signed-off-by: Mehmet Fide <mehmet.fide at screeningeagle.com>
---
 arch/arm/boot/dts/nxp/vf/vf-colibri.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/vf/vf-colibri.dtsi b/arch/arm/boot/dts/nxp/vf/vf-colibri.dtsi
index 98f9ee1b0030..74afc7b0d74b 100644
--- a/arch/arm/boot/dts/nxp/vf/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/nxp/vf/vf-colibri.dtsi
@@ -170,6 +170,15 @@ &usbphy1 {
 	status = "okay";
 };
 
+&gpio2 {
+	/*
+	 * EXT_IO_0..2 belong to no device, so hog the pin group here rather
+	 * than on the pin controller, which would depend on its own child.
+	 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio_ext>;
+};
+
 &iomuxc {
 	pinctrl_flexcan0: can0grp {
 		fsl,pins = <
-- 
2.54.0