headphone_enable_gpio 125 sound/soc/intel/boards/bdw-rt5677.c static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false }; headphone_enable_gpio 130 sound/soc/intel/boards/bdw-rt5677.c { "headphone-enable-gpios", &headphone_enable_gpio, 1 },