Messages in this thread Patch in this message | | | From | Linus Walleij <> | Subject | [PATCH 2/6] mfd/ab8500: handle the irq for suspend/resume | Date | Tue, 17 Apr 2012 09:30:24 +0200 |
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From: Rabin Vincent <rabin.vincent@stericsson.com>
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> --- drivers/mfd/ab8500-i2c.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)
diff --git a/drivers/mfd/ab8500-i2c.c b/drivers/mfd/ab8500-i2c.c index b83045f..89b31a3 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), -- 1.7.9.2
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