Hi all, In the last few days, I've been working on updating my device tree files to be compatible with the 4.19 kernel image:
https://rcn-ee.net/rootfs/bb.org/testing/2020-09-07/buster- iot/am57xx-debian-10.5-iot-armhf-2020-09-07-4gb.img.xz using the device tree files at: https://github.com/beagleboard/BeagleBoard-DeviceTrees/tree/v4.19.x-ti- overlays/src/arm/overlays I haven't been able to figure out how to properly set the default values (on or off) of my gpios on bootup. in *bbai-bone-buses.dtsi*, I found the group "*leds*" and thought I could configure these pins in a similar fashion to the older *am5729-beagleboneai-roboticscape.dts.* However, I've only been able to set the pins as gpios, and not choose whether they output on or off at boot. Here is my dts: */dts-v1/;/plugin/;/** Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/*/&{/chosen} { overlays { VENTION-GPIO = __TIMESTAMP__; }; };&ocp { P8_11_pinmux { pinctrl-0 = <&P8_11_gpio_pin>; }; /* */ P8_13_pinmux { pinctrl-0 = <&P8_13_gpio_pin>; }; /* */ * * P8_14_pinmux { pinctrl-0 = <&P8_14_gpio_pin>; }; /* */ P8_15_pinmux { pinctrl-0 = <&P8_15_gpio_pin>; }; /* */ P9_15_pinmux { pinctrl-0 = <&P9_15_gpio_pin>; }; /* */ P8_16_pinmux { pinctrl-0 = <&P8_16_gpio_pin>; }; /* */ P8_17_pinmux { pinctrl-0 = <&P8_17_gpio_pin>; }; /* */ P8_19_pinmux { pinctrl-0 = <&P8_19_gpio_pin>; }; /* */ P9_12_pinmux { pinctrl-0 = <&P9_12_gpio_pin>; }; /* */ P9_14_pinmux { pinctrl-0 = <&P9_14_gpio_pin>; }; /* */};&leds{ pinctrl-names = "default"; compatible = "gpio-leds"; led_P8_11{ status="enabled" ; default-state="on"; };};* I would eventually like to configure the default state of all of these pins.This dts compiles, but will brick my device. Any ideas about how I can set the boot states with this framework? Thanks, Doug -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/b246dba0-623b-4bfb-a259-b98403c9a0ban%40googlegroups.com.
