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mfd: Add asic3 based LED suspend/resume handlers

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Added led suspend/resume handlers to the leds/leds-asic3 and mfd/asic3 drivers.
On suspend the leds will be turned off and their clocks disabled. On resume the
reverse.

Signed-off-by: Paul Parsons <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Paul Parsons 2011-08-09 16:27:33 +00:00 • committed by Samuel Ortiz
commit e0b13b5b6a
2 changed files with 53 additions and 1 deletions
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35
drivers/leds/leds-asic3.c
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@ -107,9 +107,10 @@ static int __devinit asic3_led_probe(struct platform_device *pdev)
}
led->cdev->name = led->name;
led->cdev->default_trigger = led->default_trigger;
led->cdev->flags = LED_CORE_SUSPENDRESUME;
led->cdev->brightness_set = brightness_set;
led->cdev->blink_set = blink_set;
led->cdev->default_trigger = led->default_trigger;
ret = led_classdev_register(&pdev->dev, led->cdev);
if (ret < 0)
@ -136,12 +137,44 @@ static int __devexit asic3_led_remove(struct platform_device *pdev)
return mfd_cell_disable(pdev);
}
static int asic3_led_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
const struct mfd_cell *cell = mfd_get_cell(pdev);
int ret;
ret = 0;
if (cell->suspend)
ret = (*cell->suspend)(pdev);
return ret;
}
static int asic3_led_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
const struct mfd_cell *cell = mfd_get_cell(pdev);
int ret;
ret = 0;
if (cell->resume)
ret = (*cell->resume)(pdev);
return ret;
}
static const struct dev_pm_ops asic3_led_pm_ops = {
.suspend = asic3_led_suspend,
.resume = asic3_led_resume,
};
static struct platform_driver asic3_led_driver = {
.probe = asic3_led_probe,
.remove = __devexit_p(asic3_led_remove),
.driver = {
.name = "leds-asic3",
.owner = THIS_MODULE,
.pm = &asic3_led_pm_ops,
},
};