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boards: esp_wrover_kit: use gpio hogs for LCD, drop LEDs

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Instead of using custom board init code, use a GPIO hog to initialize
the LCD backlight. Note that LCD backlight should be controller by the
display driver, but this is not supported now. Initializing defined LEDs
should be done by the application, using either the GPIO or LEDs driver
classes.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This commit is contained in:
Gerard Marull-Paretas 2023-08-30 12:24:04 +02:00 committed by Carles Cufí
parent 12cca8939e
commit b7a172fa1a
3 changed files with 7 additions and 48 deletions
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6
boards/xtensa/esp_wrover_kit/CMakeLists.txt
View file

@ -1,6 +0,0 @@
# SPDX-License-Identifier: Apache-2.0
if(CONFIG_GPIO_ESP32)
zephyr_library()
zephyr_library_sources(board_init.c)
endif()

42
boards/xtensa/esp_wrover_kit/board_init.c
View file

@ -1,42 +0,0 @@
/*
* Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/drivers/gpio.h>
#define LED_R_PIN DT_GPIO_PIN(DT_ALIAS(led2), gpios)
#define LED_G_PIN DT_GPIO_PIN(DT_ALIAS(led1), gpios)
#define LED_B_PIN DT_GPIO_PIN(DT_ALIAS(led0), gpios)
#define BL_PIN 5
static int board_esp_wrover_kit_init(void)
{
const struct device *gpio;
gpio = DEVICE_DT_GET(DT_NODELABEL(gpio0));
if (!device_is_ready(gpio)) {
return -ENODEV;
}
/* turns red LED off */
gpio_pin_configure(gpio, LED_R_PIN, GPIO_OUTPUT);
gpio_pin_set(gpio, LED_R_PIN, 0);
/* turns green LED off */
gpio_pin_configure(gpio, LED_G_PIN, GPIO_OUTPUT);
gpio_pin_set(gpio, LED_G_PIN, 0);
/* turns blue LED off */
gpio_pin_configure(gpio, LED_B_PIN, GPIO_OUTPUT);
gpio_pin_set(gpio, LED_B_PIN, 0);
/* turns LCD backlight on */
gpio_pin_configure(gpio, BL_PIN, GPIO_OUTPUT);
gpio_pin_set(gpio, BL_PIN, 0);
return 0;
}
SYS_INIT(board_esp_wrover_kit_init, APPLICATION, CONFIG_GPIO_INIT_PRIORITY);

7
boards/xtensa/esp_wrover_kit/esp_wrover_kit.dts
View file

@ -88,6 +88,13 @@
&gpio0 {
status = "okay";
/* FIXME: should be part of the display node */
lcd-backlight {
gpio-hog;
gpios = <5 GPIO_ACTIVE_HIGH>;
output-low;
};
};
&gpio1 {