Part Number: TDA4VM
Tool/software:
Hi，
When I was using SDK10.0 to develop TDA4VM related content, I found that there was no/sys/class/gpio folder. After adding the following parameters in config and burning it back into the development board, the folder still did not generate:
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_DAVINCI=y
CONFIG_GPIO_GENERIC=y
I used the following command to check the kernel configuration and found that there is no CONFIG_GPIO_SYSFS parameter. Do you know the reason?
zcat /proc/config.gz | grep GPIO
root@j721e-evm:~# zcat /proc/config.gz | grep GPIO # CONFIG_RFKILL_GPIO is not set # CONFIG_MTD_PHYSMAP_GPIO_ADDR is not set # CONFIG_MTD_NAND_GPIO is not set CONFIG_MDIO_GPIO=y # CONFIG_MDIO_BUS_MUX_GPIO is not set CONFIG_KEYBOARD_GPIO=y # CONFIG_KEYBOARD_GPIO_POLLED is not set # CONFIG_MOUSE_GPIO is not set # CONFIG_INPUT_GPIO_BEEPER is not set # CONFIG_INPUT_GPIO_DECODER is not set # CONFIG_INPUT_GPIO_VIBRA is not set # CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set # CONFIG_SERIO_GPIO_PS2 is not set CONFIG_SERIAL_MCTRL_GPIO=y # CONFIG_I2C_ARB_GPIO_CHALLENGE is not set # CONFIG_I2C_MUX_GPIO is not set # CONFIG_I2C_CBUS_GPIO is not set CONFIG_I2C_GPIO=m # CONFIG_I2C_GPIO_FAULT_INJECTOR is not set # CONFIG_SPI_GPIO is not set # CONFIG_PPS_CLIENT_GPIO is not set # CONFIG_PINCTRL_MICROCHIP_SGPIO is not set CONFIG_GPIOLIB=y CONFIG_GPIOLIB_FASTPATH_LIMIT=512 CONFIG_OF_GPIO=y CONFIG_GPIOLIB_IRQCHIP=y # CONFIG_DEBUG_GPIO is not set CONFIG_GPIO_CDEV=y CONFIG_GPIO_CDEV_V1=y CONFIG_GPIO_GENERIC=y CONFIG_GPIO_REGMAP=y # Memory mapped GPIO drivers # CONFIG_GPIO_74XX_MMIO is not set # CONFIG_GPIO_ALTERA is not set # CONFIG_GPIO_CADENCE is not set CONFIG_GPIO_DAVINCI=y # CONFIG_GPIO_DWAPB is not set # CONFIG_GPIO_EXAR is not set # CONFIG_GPIO_FTGPIO010 is not set CONFIG_GPIO_GENERIC_PLATFORM=y # CONFIG_GPIO_GRGPIO is not set # CONFIG_GPIO_HISI is not set # CONFIG_GPIO_HLWD is not set # CONFIG_GPIO_LOGICVC is not set # CONFIG_GPIO_MB86S7X is not set # CONFIG_GPIO_PL061 is not set # CONFIG_GPIO_SIFIVE is not set CONFIG_GPIO_SYSCON=y # CONFIG_GPIO_XGENE is not set # CONFIG_GPIO_XILINX is not set # CONFIG_GPIO_AMD_FCH is not set # end of Memory mapped GPIO drivers # I2C GPIO expanders # CONFIG_GPIO_ADNP is not set # CONFIG_GPIO_FXL6408 is not set # CONFIG_GPIO_DS4520 is not set # CONFIG_GPIO_GW_PLD is not set # CONFIG_GPIO_MAX7300 is not set CONFIG_GPIO_MAX732X=y # CONFIG_GPIO_MAX732X_IRQ is not set CONFIG_GPIO_PCA953X=y CONFIG_GPIO_PCA953X_IRQ=y # CONFIG_GPIO_PCA9570 is not set # CONFIG_GPIO_PCF857X is not set # CONFIG_GPIO_TPIC2810 is not set # end of I2C GPIO expanders # MFD GPIO expanders CONFIG_GPIO_BD9571MWV=m CONFIG_GPIO_MAX77620=y CONFIG_GPIO_TPS65219=y # CONFIG_GPIO_WM8994 is not set # end of MFD GPIO expanders # PCI GPIO expanders # CONFIG_GPIO_BT8XX is not set # CONFIG_GPIO_PCI_IDIO_16 is not set # CONFIG_GPIO_PCIE_IDIO_24 is not set # CONFIG_GPIO_RDC321X is not set # end of PCI GPIO expanders # SPI GPIO expanders # CONFIG_GPIO_74X164 is not set # CONFIG_GPIO_MAX3191X is not set # CONFIG_GPIO_MAX7301 is not set # CONFIG_GPIO_MC33880 is not set # CONFIG_GPIO_PISOSR is not set # CONFIG_GPIO_XRA1403 is not set # end of SPI GPIO expanders # USB GPIO expanders # end of USB GPIO expanders # Virtual GPIO drivers # CONFIG_GPIO_AGGREGATOR is not set # CONFIG_GPIO_LATCH is not set # CONFIG_GPIO_MOCKUP is not set # CONFIG_GPIO_VIRTIO is not set # CONFIG_GPIO_SIM is not set # end of Virtual GPIO drivers # CONFIG_POWER_RESET_GPIO is not set # CONFIG_POWER_RESET_GPIO_RESTART is not set # CONFIG_CHARGER_GPIO is not set CONFIG_SENSORS_GPIO_FAN=m # CONFIG_GPIO_WATCHDOG is not set CONFIG_REGULATOR_GPIO=y # CONFIG_BACKLIGHT_GPIO is not set CONFIG_USB_CONN_GPIO=y CONFIG_TYPEC_MUX_GPIO_SBU=m # CONFIG_LEDS_PCA9532_GPIO is not set CONFIG_LEDS_GPIO=y # CONFIG_EXTCON_GPIO is not set CONFIG_EXTCON_USB_GPIO=y CONFIG_MUX_GPIO=m
Regards,
Yang
