| # Copyright (c) 2021, Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config DISPLAY_NRF_LED_MATRIX |
| bool "LED matrix driven by GPIOs" |
| default y |
| depends on DT_HAS_NORDIC_NRF_LED_MATRIX_ENABLED |
| select NRFX_GPIOTE |
| select NRFX_PPI if HAS_HW_NRF_PPI |
| help |
| Enable driver for a LED matrix with rows and columns driven by |
| GPIOs. The driver allows setting one of 256 levels of brightness |
| (where 0 means off completely) for each of the LEDs independently. |
| Assignment of GPIOs to rows and columns and the mapping of those |
| to pixels are specified in properties of a "nordic,nrf-led-matrix" |
| compatible node in devicetree. |
| The driver uses one TIMER instance and, depending on what is set in |
| devicetree, one PWM instance or one or more GPIOTE and PPI channels |
| (the latter value depends on the chosen pixel group size - the number |
| of LEDs in one row that can be lit simultaneously). |
