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TDA4VEN-Q1: How to set the default direction and value for PINS of GPIO Expander in Linux device tree

Christopher
Intellectual 310 points
Part Number: TDA4VEN-Q1

Tool/software:

Hi TI Experts,

I use TDA4VE EVM with Linux+RTOS SDK r85.

I saw it is possible to give the line name for pins of GPIO Expander like below: 

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exp2: gpio@22 {
compatible = "ti,tca6424";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "APPLE_AUTH_RSTZ", "MLB_RSTZ", "GPIO_USD_PWR_EN", "USBC_PWR_EN",
"USBC_MODE_SEL1", "USBC_MODE_SEL0", "MCAN0_EN", "MCAN0_STB#",
"MUX_SPAREMUX_SPARE", "MCASP/TRACE_MUX_S0", "MCASP/TRACE_MUX_S1",
"MLB_MUX_SEL", "MCAN_MUX_SEL", "MCASP2/SPI3_MUX_SEL", "PCIe_CLKREQn_MUX_SEL",
"CDCI2_RSTZ", "ENET_EXP_PWRDN", "ENET_EXP_RESETZ", "ENET_I2CMUX_SEL",
"ENET_EXP_SPARE2", "M2PCIE_RTSZ", "USER_INPUT1", "USER_LED1", "USER_LED2";
};
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

And we can control it by "enable-gpios = <&exp2 6 GPIO_ACTIVE_HIGH>; if the pin is controlled by some device driver.

For those pins that do not belong to any device driver, I would like to know if it is possible to assign them the default direction and value (high/low) in above declaration?

Thanks.

Regards,

Christopher