Tactility/Devices/m5stack-cardputer/m5stack,cardputer.dts
Ken Van Hoeylandt 26c17986c6
GPIO refactored (#495)
* **Refactor**
  * GPIO subsystem moved to a descriptor-based model for per-pin ownership and runtime pin management; many platform drivers now acquire/release descriptors.
  * Device trees and drivers now use GPIO phandle-style pin specifications across all boards and all drivers.

* **Behavior**
  * Device list now encodes per-device status (ok/disabled); boot will skip disabled devices accordingly.

* **Deprecation**
  * Legacy GPIO HAL marked deprecated and replaced with descriptor-based interfaces.

* **Chores**
  * Bindings and platform configs updated to the new GPIO pin-spec format.
2026-02-11 20:34:54 +01:00

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/dts-v1/;
#include <tactility/bindings/root.h>
#include <tactility/bindings/esp32_gpio.h>
#include <tactility/bindings/esp32_i2c.h>
#include <tactility/bindings/esp32_i2s.h>
#include <tactility/bindings/esp32_spi.h>
#include <tactility/bindings/esp32_uart.h>
// Reference: https://docs.m5stack.com/en/core/Cardputer
/ {
compatible = "root";
model = "M5Stack Cardputer";
gpio0 {
compatible = "espressif,esp32-gpio";
gpio-count = <49>;
};
i2c_port_a {
compatible = "espressif,esp32-i2c";
port = <I2C_NUM_0>;
clock-frequency = <400000>;
pin-sda = <&gpio0 2 GPIO_FLAG_NONE>;
pin-scl = <&gpio0 1 GPIO_FLAG_NONE>;
};
display_spi: spi0 {
compatible = "espressif,esp32-spi";
host = <SPI2_HOST>;
pin-mosi = <&gpio0 35 GPIO_FLAG_NONE>;
pin-sclk = <&gpio0 36 GPIO_FLAG_NONE>;
};
sdcard_spi: spi1 {
compatible = "espressif,esp32-spi";
host = <SPI3_HOST>;
pin-mosi = <&gpio0 14 GPIO_FLAG_NONE>;
pin-miso = <&gpio0 39 GPIO_FLAG_NONE>;
pin-sclk = <&gpio0 40 GPIO_FLAG_NONE>;
};
// Speaker and microphone
// TODO: Microphone I2C init code from https://github.com/m5stack/M5Unified/blob/a6256725481f1bc366655fa48cf03b6095e30ad1/src/M5Unified.cpp#L936
i2s0 {
compatible = "espressif,esp32-i2s";
port = <I2S_NUM_0>;
pin-bclk = <&gpio0 41 GPIO_FLAG_NONE>;
pin-ws = <&gpio0 43 GPIO_FLAG_NONE>;
pin-data-out = <&gpio0 42 GPIO_FLAG_NONE>;
pin-data-in = <&gpio0 46 GPIO_FLAG_NONE>;
};
uart_port_a: uart1 {
compatible = "espressif,esp32-uart";
status = "disabled";
port = <UART_NUM_1>;
pin-tx = <&gpio0 1 GPIO_FLAG_NONE>;
pin-rx = <&gpio0 2 GPIO_FLAG_NONE>;
};
};