arm64: dts: imx8mq-librem5: add pinctrl for the touchscreen description

In order for the touchscreen interrupt line to work, describe it properly.
Otherwise it can work if defaults are ok, but we cannot be sure.

Fixes: 8f0216b006e5 ("arm64: dts: Add a device tree for the Librem 5 phone")
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 55268fc0622e7ce875dc80e69093e8f699a70482..8fceecabd6b4fa5d48e117d1c4f87de3bdc2aaa3 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -459,6 +459,13 @@
                >;
        };
 
+       pinctrl_touch: touchgrp {
+               fsl,pins = <
+                       /* TP_INT */
+                       MX8MQ_IOMUXC_ENET_RD1_GPIO1_IO27        0x80
+               >;
+       };
+
        pinctrl_typec: typecgrp {
                fsl,pins = <
                        /* TYPEC_MUX_EN */
@@ -880,6 +887,8 @@
        touchscreen@38 {
                compatible = "edt,edt-ft5506";
                reg = <0x38>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_touch>;
                interrupt-parent = <&gpio1>;
                interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
                touchscreen-size-x = <720>;