boards: circuitdojo_feather_nrf9160: use regulator for 3V3 supply
Many board peripherals are enabled by turning on a 3V3 buck-boost converter, controller by P0.31 (NRF_PS_EN). Use the regulator framework instead of custom init code. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
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5 changed files with 14 additions and 35 deletions
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@ -1,4 +0,0 @@
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# SPDX-License-Identifier: Apache-2.0
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zephyr_library()
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zephyr_library_sources(board.c)
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@ -1,31 +0,0 @@
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/*
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* Copyright (c) 2020 Circuit Dojo LLC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <init.h>
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#include <drivers/gpio.h>
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#define GPIO0 DT_LABEL(DT_NODELABEL(gpio0))
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#define POWER_LATCH_PIN 31
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static int board_circuitdojo_feather_nrf9160_init(const struct device *dev)
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{
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ARG_UNUSED(dev);
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/* Get the device binding */
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const struct device *gpio = device_get_binding(GPIO0);
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if (gpio == NULL) {
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return -ENODEV;
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}
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/* Configure latch pin as output. */
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gpio_pin_configure(gpio, POWER_LATCH_PIN, GPIO_OUTPUT_HIGH);
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return 0;
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}
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/* needs to be done after GPIO driver init */
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SYS_INIT(board_circuitdojo_feather_nrf9160_init, POST_KERNEL,
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CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
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@ -75,6 +75,14 @@
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<1 0 &gpio0 14 0>, /* ADC1 = AIN2 */
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<1 0 &gpio0 14 0>, /* ADC1 = AIN2 */
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<0 0 &gpio0 13 0>; /* ADC0 = AIN1 */
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<0 0 &gpio0 13 0>; /* ADC0 = AIN1 */
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};
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};
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nrf-ps-en {
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compatible = "regulator-fixed-sync", "regulator-fixed";
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label = "nrf_ps_en";
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regulator-name = "nrf_ps_en";
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enable-gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
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regulator-boot-on;
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};
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};
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};
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&adc {
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&adc {
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@ -23,4 +23,7 @@ CONFIG_SERIAL=y
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CONFIG_CONSOLE=y
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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# required to enable 3V3 power rail
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CONFIG_REGULATOR=y
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CONFIG_PINCTRL=y
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CONFIG_PINCTRL=y
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@ -26,4 +26,7 @@ CONFIG_SERIAL=y
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CONFIG_CONSOLE=y
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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# required to enable 3V3 power rail
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CONFIG_REGULATOR=y
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CONFIG_PINCTRL=y
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CONFIG_PINCTRL=y
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