diff options
| author | Rabin Vincent <rabin.vincent@stericsson.com> | 2012-04-17 11:30:24 +0400 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-05-01 15:33:04 +0400 |
| commit | 7e82d6ff5d2c5e35d1fcb8c673287f7d780a13bb (patch) | |
| tree | d91130cc52f6c42a3a3d593c1fffd4495de91ee0 | |
| parent | 44f72e53382c9c673fd54c3bab67a6b9a2d4526e (diff) | |
| download | linux-7e82d6ff5d2c5e35d1fcb8c673287f7d780a13bb.tar.xz | |
mfd: Handle the ab8500 irq for suspend/resume
Ensure that the AB interrupt is only handled at a time when
all core drivers are resumed. Ensure that the AB interrupt
is marked as a wakeup interrupt.
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com>
Reviewed-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/ab8500-i2c.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/mfd/ab8500-i2c.c b/drivers/mfd/ab8500-i2c.c index b83045f102be..89b31a3409cd 100644 --- a/drivers/mfd/ab8500-i2c.c +++ b/drivers/mfd/ab8500-i2c.c @@ -101,10 +101,42 @@ static const struct platform_device_id ab8500_id[] = { { } }; +#ifdef CONFIG_PM +static int ab8500_i2c_suspend(struct device *dev) +{ + struct ab8500 *ab = dev_get_drvdata(dev); + + disable_irq(ab->irq); + enable_irq_wake(ab->irq); + + return 0; +} + +static int ab8500_i2c_resume(struct device *dev) +{ + struct ab8500 *ab = dev_get_drvdata(dev); + + disable_irq_wake(ab->irq); + enable_irq(ab->irq); + + return 0; +} + +static const struct dev_pm_ops ab8500_i2c_pm_ops = { + .suspend = ab8500_i2c_suspend, + .resume = ab8500_i2c_resume, +}; + +#define AB8500_I2C_PM_OPS (&ab8500_i2c_pm_ops) +#else +#define AB8500_I2C_PM_OPS NULL +#endif + static struct platform_driver ab8500_i2c_driver = { .driver = { .name = "ab8500-i2c", .owner = THIS_MODULE, + .pm = AB8500_I2C_PM_OPS, }, .probe = ab8500_i2c_probe, .remove = __devexit_p(ab8500_i2c_remove), |