imx: kontron-sl-mx8mm: Prepare for I2C display detection in environment script
Enable the I2C bus and set a env variable for the reset GPIO of the touch
controller. This allows us to probe the panel in a script.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
diff --git a/arch/arm/dts/imx8mm-kontron-bl-u-boot.dtsi b/arch/arm/dts/imx8mm-kontron-bl-u-boot.dtsi
index cd990b1..e9fa8d7 100644
--- a/arch/arm/dts/imx8mm-kontron-bl-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-kontron-bl-u-boot.dtsi
@@ -4,3 +4,11 @@
*/
#include "imx8mm-kontron-bl-common-u-boot.dtsi"
+
+&iomuxc {
+ pinctrl_touch: touchgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI1_TXD3_GPIO4_IO15 0x19 /* Touch Reset */
+ >;
+ };
+};