VIPER_UART_SHDN_GPIO 871 arch/arm/mach-pxa/viper.c if (gpio_request(VIPER_UART_SHDN_GPIO, "UARTs shutdown")) VIPER_UART_SHDN_GPIO 874 arch/arm/mach-pxa/viper.c if (gpio_direction_output(VIPER_UART_SHDN_GPIO, 0)) VIPER_UART_SHDN_GPIO 880 arch/arm/mach-pxa/viper.c gpio_free(VIPER_UART_SHDN_GPIO);