pinctrl_lcdif: lcdifgrp {
fsl,pins = <
IMX8QXP_ESAI0_FSR_ADMA_LCDIF_D00 0x00000060
IMX8QXP_ESAI0_FST_ADMA_LCDIF_D01 0x00000060
IMX8QXP_ESAI0_SCKR_ADMA_LCDIF_D02 0x00000060
IMX8QXP_ESAI0_SCKT_ADMA_LCDIF_D03 0x00000060
IMX8QXP_ESAI0_TX0_ADMA_LCDIF_D04 0x00000060
IMX8QXP_ESAI0_TX1_ADMA_LCDIF_D05 0x00000060
IMX8QXP_ESAI0_TX2_RX3_ADMA_LCDIF_D06 0x00000060
IMX8QXP_ESAI0_TX3_RX2_ADMA_LCDIF_D07 0x00000060
IMX8QXP_ESAI0_TX4_RX1_ADMA_LCDIF_D08 0x00000060
IMX8QXP_ESAI0_TX5_RX0_ADMA_LCDIF_D09 0x00000060
IMX8QXP_SPDIF0_RX_ADMA_LCDIF_D10 0x00000060
IMX8QXP_SPDIF0_TX_ADMA_LCDIF_D11 0x00000060
IMX8QXP_SPDIF0_EXT_CLK_ADMA_LCDIF_D12 0x00000060
/*IMX8QXP_SPI3_SCK_ADMA_LCDIF_D13 0x00000060
IMX8QXP_SPI3_SDO_ADMA_LCDIF_D14 0x00000060
IMX8QXP_SPI3_SDI_ADMA_LCDIF_D15 0x00000060
IMX8QXP_UART1_RTS_B_ADMA_LCDIF_D16 0x00000060
IMX8QXP_UART1_CTS_B_ADMA_LCDIF_D17 0x00000060
IMX8QXP_SPI3_CS0_ADMA_LCDIF_HSYNC 0x00000060
IMX8QXP_SPI3_CS1_ADMA_LCDIF_RESET 0x00000060
*/
IMX8QXP_MCLK_IN1_ADMA_LCDIF_EN 0x00000060
IMX8QXP_MCLK_IN0_ADMA_LCDIF_VSYNC 0x00000060
IMX8QXP_MCLK_OUT0_ADMA_LCDIF_CLK 0x00000060
>;
};
pinctrl_lcdifpwm: lcdifpwmgrp {
fsl,pins = <
IMX8QXP_SPI0_CS1_ADMA_LCD_PWM0_OUT 0x00000060
>;
};
pinctrl_test: test {
fsl,pins = <
IMX8QXP_SPI3_CS0_LSIO_GPIO0_IO16 0xC0000021
IMX8QXP_SPI3_SCK_LSIO_GPIO0_IO13 0xC0000021
IMX8QXP_SPI3_SDO_LSIO_GPIO0_IO14 0xC0000021 //OK
IMX8QXP_SPI3_SDI_LSIO_GPIO0_IO15 0xC0000021
>;
};
After download the image to imx8qxp, I test the pin as below：
root@imx8qxpmek:/sys/class/gpio# echo 13 > export
root@imx8qxpmek:/sys/class/gpio# echo 14 > export
root@imx8qxpmek:/sys/class/gpio# echo 15 > export
root@imx8qxpmek:/sys/class/gpio# echo 16 > export
root@imx8qxpmek:/sys/class/gpio# echo out > gpio13/direction
root@imx8qxpmek:/sys/class/gpio# echo out > gpio14/direction
root@imx8qxpmek:/sys/class/gpio# echo out > gpio15/direction
root@imx8qxpmek:/sys/class/gpio# echo out > gpio16/direction
root@imx8qxpmek:/sys/class/gpio# echo 1 > gpio13/value
root@imx8qxpmek:/sys/class/gpio# echo 1 > gpio14/value
root@imx8qxpmek:/sys/class/gpio# echo 1 > gpio15/value
root@imx8qxpmek:/sys/class/gpio# echo 1 > gpio16/value
But only gpio14 is high (1.8V), other three pins are low (0v)
Any error in my test case? how to use there three pins as gpio
