lkml.org 
[lkml]   [2011]   [Aug]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[RFC][PATCH] power_supply: collie_battery: convert to gpio_request_array() / gpio_free_array()
From
Date
As suggested by Igor Grinberg, this change make the implementation looks simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
hi,
I don't have this hardware handy, I appreciate if someone can test this patch.

Thanks,
Axel

drivers/power/collie_battery.c | 53 ++++++++++------------------------------
1 files 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 = {
--
1.7.4.1




\
 
 \ /
  Last update: 2011-08-26 09:55    [W:0.120 / U:0.860 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site