From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laxman Dewangan Subject: [PATCH V2] mfd: tps65910: Add wakeup support Date: Mon, 23 Jan 2012 13:16:15 +0530 Message-ID: <1327304775-12202-1-git-send-email-ldewangan@nvidia.com> Return-path: Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, jedu-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org, lrg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org, broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org, gg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org List-Id: linux-tegra@vger.kernel.org Implementing irq_set_wake() so that device should able to wakeup the system through different interrupt provided by this device like gpios, onkey, rtc etc. Signed-off-by: Laxman Dewangan --- As discussed on patch V1, the device should call the api device_set_wakeup_capable() to expose proper sysfs interface to userspace to choose the wakeup enable/disable by application. Then before suspend, driver need to check whether user application have selected wakeup enabled or not through device_may_wakeup() and accordingly call the enable_irq_wake(). The above code should be implemented in rtc/onkey or gpio- client driver to provide proper sysfs interface if require and call the enable_irq_wake() accordingly. This patch will just implement the api require to enable the wakeup through interrupt from this device. drivers/mfd/tps65910-irq.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c index a56be93..0c13042 100644 --- a/drivers/mfd/tps65910-irq.c +++ b/drivers/mfd/tps65910-irq.c @@ -145,12 +145,23 @@ static void tps65910_irq_disable(struct irq_data *data) tps65910->irq_mask |= ( 1 << irq_to_tps65910_irq(tps65910, data->irq)); } +#ifdef CONFIG_PM_SLEEP +static int tps65910_irq_set_wake(struct irq_data *data, unsigned int enable) +{ + struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); + return irq_set_irq_wake(tps65910->chip_irq, enable); +} +#else +#define tps65910_irq_set_wake NULL +#endif + static struct irq_chip tps65910_irq_chip = { .name = "tps65910", .irq_bus_lock = tps65910_irq_lock, .irq_bus_sync_unlock = tps65910_irq_sync_unlock, .irq_disable = tps65910_irq_disable, .irq_enable = tps65910_irq_enable, + .irq_set_wake = tps65910_irq_set_wake, }; int tps65910_irq_init(struct tps65910 *tps65910, int irq, -- 1.7.1.1