diff options
| author | Deepak Khatri <deepaklorkhatri7@gmail.com> | 2020-10-25 03:36:23 +0530 |
|---|---|---|
| committer | Robert Nelson <robertcnelson@gmail.com> | 2020-10-24 19:43:45 -0500 |
| commit | 9a6a1aab133894d522b40137e5cc34fe32269d9e (patch) | |
| tree | 84d18ccdb25e54212a58445a9e0c35927ea419f7 | |
| parent | 9177d79eef3ac4f1eeb0d303b636213511f4ea7d (diff) | |
Bone LED P8_03 DT overlay
Demo DT overlay for using Bone LED interface for any P8 header pin, Can be used as a template for any LED project.
| -rw-r--r-- | src/arm/overlays/BONE-LED_P8_03.dts | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/arm/overlays/BONE-LED_P8_03.dts b/src/arm/overlays/BONE-LED_P8_03.dts new file mode 100644 index 0000000..1666155 --- /dev/null +++ b/src/arm/overlays/BONE-LED_P8_03.dts @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2020 Deepak Khatri <deepaklorkhatri7@gmail.com> + * https://lorforlinux.github.io/GSoC2020_BeagleBoard.org/ + * + * See Cape Interface Spec page for more info on Bone Buses + * https://elinux.org/Beagleboard:BeagleBone_cape_interface_spec + * + * Virtual cape for LED on P8_03 + * Supports BBB, BBBWL, and BBAI + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/dts-v1/; +/plugin/; + +&{/chosen} { + overlays { + BONE-LED_P8_03 = __TIMESTAMP__; + }; +}; + +/* + * Update the default pinmux of the pins. + * See these files for the phandles (&P9_* & &P8_*) + * BeagleBoard-DeviceTrees/v4.19.x-ti-overlays/src/arm/am335x-bone-common-univ.dtsi + * BeagleBoard-DeviceTrees/v4.19.x-ti-overlays/src/arm/am572x-bone-common-univ.dtsi + */ +&ocp { + P8_03_pinmux { pinctrl-0 = <&P8_03_gpio_pin>;}; /* lcd: lcd_data0 */ +}; + +/* + * Easy LED control through sysfs (/sys/class/leds/) using gpio-leds driver + * See these files for the led_P8_#/led_P9_# definition + * https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbai-bone-buses.dtsi + * https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbb-bone-buses.dtsi + * + */ + +&{/} { + leds { + led_P8_03 { + status = "okay"; + label = "led_P8_03"; // sys/class/leds/<label> + linux,default-trigger = "heartbeat"; + default-state = "on"; + }; + }; +};
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