diff options
Diffstat (limited to 'arch/arm/mach-iop32x/n2100.c')
| -rw-r--r-- | arch/arm/mach-iop32x/n2100.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index 069144300b77..6bace5bc7ebb 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -30,6 +30,7 @@ #include <linux/platform_device.h> #include <linux/reboot.h> #include <linux/io.h> +#include <linux/gpio.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -288,8 +289,14 @@ static void n2100_power_off(void) static void n2100_restart(enum reboot_mode mode, const char *cmd) { - gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW); - gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT); + int ret; + + ret = gpio_direction_output(N2100_HARDWARE_RESET, 0); + if (ret) { + pr_crit("could not drive reset GPIO low\n"); + return; + } + /* Wait for reset to happen */ while (1) ; } @@ -308,6 +315,19 @@ static void power_button_poll(unsigned long dummy) add_timer(&power_button_poll_timer); } +static int __init n2100_request_gpios(void) +{ + int ret; + + if (!machine_is_n2100()) + return 0; + + ret = gpio_request(N2100_HARDWARE_RESET, "reset"); + if (ret) + pr_err("could not request reset GPIO\n"); + return 0; +} +device_initcall(n2100_request_gpios); static void __init n2100_init_machine(void) { |