From 389cd203d611db376c8226e6a7363104ca3769de Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 26 Aug 2011 15:52:48 +0800 Subject: [PATCH] collie_battery: Convert to gpio_request_array() / gpio_free_array() As suggested by Igor Grinberg, this change make the implementation looks simpler. Signed-off-by: Axel Lin Signed-off-by: Anton Vorontsov --- drivers/power/collie_battery.c | 53 +++++++++++------------------------------- 1 file changed, 13 insertions(+), 40 deletions(-) diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c index 548d263..1b4c17b 100644 --- a/drivers/power/collie_battery.c +++ b/drivers/power/collie_battery.c @@ -277,18 +277,13 @@ static struct collie_bat collie_bat_bu = { .adc_temp_divider = -1, }; -static struct { - int gpio; - char *name; - bool output; - int value; -} gpios[] = { - { COLLIE_GPIO_CO, "main battery full", 0, 0 }, - { COLLIE_GPIO_MAIN_BAT_LOW, "main battery low", 0, 0 }, - { COLLIE_GPIO_CHARGE_ON, "main charge on", 1, 0 }, - { COLLIE_GPIO_MBAT_ON, "main battery", 1, 0 }, - { COLLIE_GPIO_TMP_ON, "main battery temp", 1, 0 }, - { COLLIE_GPIO_BBAT_ON, "backup battery", 1, 0 }, +static struct gpio collie_batt_gpios[] = { + { COLLIE_GPIO_CO, GPIOF_IN, "main battery full" }, + { COLLIE_GPIO_MAIN_BAT_LOW, GPIOF_IN, "main battery low" }, + { COLLIE_GPIO_CHARGE_ON, GPIOF_OUT_INIT_LOW, "main charge on" }, + { COLLIE_GPIO_MBAT_ON, GPIOF_OUT_INIT_LOW, "main battery" }, + { COLLIE_GPIO_TMP_ON, GPIOF_OUT_INIT_LOW, "main battery temp" }, + { COLLIE_GPIO_BBAT_ON, GPIOF_OUT_INIT_LOW, "backup battery" }, }; #ifdef CONFIG_PM @@ -313,29 +308,16 @@ static int collie_bat_resume(struct ucb1x00_dev *dev) static int __devinit collie_bat_probe(struct ucb1x00_dev *dev) { int ret; - int i; if (!machine_is_collie()) return -ENODEV; ucb = dev->ucb; - for (i = 0; i < ARRAY_SIZE(gpios); i++) { - ret = gpio_request(gpios[i].gpio, gpios[i].name); - if (ret) { - i--; - goto err_gpio; - } - - if (gpios[i].output) - ret = gpio_direction_output(gpios[i].gpio, - gpios[i].value); - else - ret = gpio_direction_input(gpios[i].gpio); - - if (ret) - goto err_gpio; - } + ret = gpio_request_array(collie_batt_gpios, + ARRAY_SIZE(collie_batt_gpios)); + if (ret) + return ret; mutex_init(&collie_bat_main.work_lock); @@ -363,19 +345,12 @@ err_psy_reg_main: /* see comment in collie_bat_remove */ cancel_work_sync(&bat_work); - - i--; -err_gpio: - for (; i >= 0; i--) - gpio_free(gpios[i].gpio); - + gpio_free_array(collie_batt_gpios, ARRAY_SIZE(collie_batt_gpios)); return ret; } static void __devexit collie_bat_remove(struct ucb1x00_dev *dev) { - int i; - free_irq(gpio_to_irq(COLLIE_GPIO_CO), &collie_bat_main); power_supply_unregister(&collie_bat_bu.psy); @@ -387,9 +362,7 @@ static void __devexit collie_bat_remove(struct ucb1x00_dev *dev) * unregistered now. */ cancel_work_sync(&bat_work); - - for (i = ARRAY_SIZE(gpios) - 1; i >= 0; i--) - gpio_free(gpios[i].gpio); + gpio_free_array(collie_batt_gpios, ARRAY_SIZE(collie_batt_gpios)); } static struct ucb1x00_driver collie_bat_driver = { -- 2.7.4