From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754536Ab2DQHak (ORCPT ); Tue, 17 Apr 2012 03:30:40 -0400 Received: from eu1sys200aog116.obsmtp.com ([207.126.144.141]:39933 "EHLO eu1sys200aog116.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754137Ab2DQHah (ORCPT ); Tue, 17 Apr 2012 03:30:37 -0400 From: Linus Walleij To: Samuel Ortiz , Cc: Rabin Vincent , Linus Walleij Subject: [PATCH 2/6] mfd/ab8500: handle the irq for suspend/resume Date: Tue, 17 Apr 2012 09:30:24 +0200 Message-ID: <1334647824-1663-1-git-send-email-linus.walleij@stericsson.com> X-Mailer: git-send-email 1.7.9.2 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rabin Vincent 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 Reviewed-by: Jonas Aberg Reviewed-by: Mattias Wallin Signed-off-by: Linus Walleij --- 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