| STMicroelectonics Multi-Function eXpander (STMFX) Core bindings |
| |
| ST Multi-Function eXpander (STMFX) is a slave controller using I2C for |
| communication with the main MCU. Its main features are GPIO expansion, main |
| MCU IDD measurement (IDD is the amount of current that flows through VDD) and |
| resistive touchscreen controller. |
| |
| Required properties: |
| - compatible: should be "st,stmfx-0300". |
| - reg: I2C slave address of the device. |
| - interrupts: interrupt specifier triggered by MFX_IRQ_OUT signal. |
| Please refer to ../interrupt-controller/interrupt.txt |
| |
| Optional properties: |
| - drive-open-drain: configure MFX_IRQ_OUT as open drain. |
| - vdd-supply: phandle of the regulator supplying STMFX. |
| |
| Example: |
| |
| stmfx: stmfx@42 { |
| compatible = "st,stmfx-0300"; |
| reg = <0x42>; |
| interrupts = <8 IRQ_TYPE_EDGE_RISING>; |
| interrupt-parent = <&gpioi>; |
| vdd-supply = <&v3v3>; |
| }; |
| |
| Please refer to ../pinctrl/pinctrl-stmfx.txt for STMFX GPIO expander function bindings. |
