Tactility/Devices/m5stack-tab5/m5stack,tab5.dts
Ken Van Hoeylandt d2048e01b6
Tab5 power expander driver and devicetree parsing improvements (#507)
* **New Features**
  * PI4IOE5V6408 I2C I/O expander driver with public GPIO APIs
  * CLI tool to list devicetree dependencies

* **Device Tree Updates**
  * M5Stack Tab5 configured with two I2C IO expanders; PI4IOE5V6408 binding added

* **Build / Tooling**
  * Devicetree code generation integrated into build; generated artifacts and dynamic dependency resolution exposed

* **Refactor**
  * Kernel/run APIs updated to accept a null‑terminated devicetree modules array; many module symbols renamed

* **Documentation**
  * Added README and Apache‑2.0 license for new driver module
2026-02-17 22:59:30 +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 <bindings/pi4ioe5v6408.h>
/ {
compatible = "root";
model = "Tab5";
gpio0 {
compatible = "espressif,esp32-gpio";
gpio-count = <57>;
};
i2c_internal: i2c0 {
compatible = "espressif,esp32-i2c";
port = <I2C_NUM_0>;
clock-frequency = <400000>;
pin-sda = <&gpio0 31 GPIO_FLAG_NONE>;
pin-scl = <&gpio0 32 GPIO_FLAG_NONE>;
/*
- Bit 0: RF internal/external switch
- Bit 1: Speaker enable
- Bit 2: External 5V bus enable
- Bit 3: /
- Bit 4: LCD reset
- Bit 5: Touch reset
- Bit 6: Camera reset
- Bit 7: Headphone detect
*/
io_expander0 {
compatible = "diodes,pi4ioe5v6408";
reg = <0x43>;
};
/*
- Bit 0: C6 WLAN enable
- Bit 1: /
- Bit 2: /
- Bit 3: USB-A 5V enable
- Bit 4: Device power: PWROFF_PLUSE
- Bit 5: IP2326: nCHG_QC_EN
- Bit 6: IP2326: CHG_STAT_LED
- Bit 7: IP2326: CHG_EN
*/
io_expander1 {
compatible = "diodes,pi4ioe5v6408";
reg = <0x44>;
};
};
i2c_port_a: i2c1 {
compatible = "espressif,esp32-i2c";
port = <I2C_NUM_1>;
clock-frequency = <400000>;
pin-sda = <&gpio0 53 GPIO_FLAG_NONE>;
pin-scl = <&gpio0 54 GPIO_FLAG_NONE>;
};
sdcard_spi: spi0 {
compatible = "espressif,esp32-spi";
host = <SPI2_HOST>;
pin-mosi = <&gpio0 44 GPIO_FLAG_NONE>;
pin-miso = <&gpio0 39 GPIO_FLAG_NONE>;
pin-sclk = <&gpio0 43 GPIO_FLAG_NONE>;
};
// ES8388 and ES7210
i2s0 {
compatible = "espressif,esp32-i2s";
port = <I2S_NUM_0>;
pin-bclk = <&gpio0 27 GPIO_FLAG_NONE>;
pin-ws = <&gpio0 29 GPIO_FLAG_NONE>;
pin-data-out = <&gpio0 26 GPIO_FLAG_NONE>;
pin-data-in = <&gpio0 28 GPIO_FLAG_NONE>;
pin-mclk = <&gpio0 30 GPIO_FLAG_NONE>;
};
};