diff options
| author | Paul Parsons <lost.distance@yahoo.com> | 2011-08-09 16:27:33 +0000 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-10-24 14:09:09 +0200 |
| commit | e0b13b5b6a9ad3ccadaa6662524a92e13aa7a032 (patch) | |
| tree | 2c355a640e235691fae829d610bc4ac37da0f245 /drivers/leds/leds-asic3.c | |
| parent | 3c6e36537e40a41ddb0e27a80149cfd341a92d7d (diff) | |
| download | linux-e0b13b5b6a9ad3ccadaa6662524a92e13aa7a032.tar.bz2 | |
mfd: Add asic3 based LED suspend/resume handlers
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 <lost.distance@yahoo.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/leds/leds-asic3.c')
| -rw-r--r-- | drivers/leds/leds-asic3.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/leds/leds-asic3.c b/drivers/leds/leds-asic3.c index 22f847c890c9..fbd5d88ccd8f 100644 --- a/drivers/leds/leds-asic3.c +++ b/drivers/leds/leds-asic3.c @@ -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, }, }; |