static int pcf50633_suspend(struct device *dev)
{
    struct i2c_client *client = to_i2c_client(dev);
    struct pcf50633 *pcf = i2c_get_clientdata(client);

    return pcf50633_irq_suspend(pcf);
}
static int pcf50633_suspend(struct i2c_client *client, pm_message_t state)
{
	struct pcf50633 *pcf;
	pcf = i2c_get_clientdata(client);

	return pcf50633_irq_suspend(pcf);
}