From 234506ad3f28d5eea85f739f637cde6d9e8f5a88 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 6 Sep 2013 17:17:13 -0600 Subject: [PATCH] mfd: tps6586x: Implement irq_set_wake rtc-tps6586x calls enable/disable_irq_wake() during suspend/resume. Since the main tps6586x irq_chip doesn't implement .irq_set_wake, this causes the RTC's enable_irq_wake() to fail, and the disable_irq_wake() to spew a WARN about unbalanced wake disable. Solve this by implementing .irq_set_wake. Also, I assume that enable_irq_wake() shouldn't be called unconditionally in tps6586x_irq_init(), since this is now triggered by IRQ children setting up their cascaded IRQs for wake. So, remove that. Signed-off-by: Stephen Warren Signed-off-by: Lee Jones --- drivers/mfd/tps6586x.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index f54fe4d..68906b1 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -124,6 +124,7 @@ struct tps6586x { struct i2c_client *client; struct regmap *regmap; + int irq; struct irq_chip irq_chip; struct mutex irq_lock; int irq_base; @@ -261,12 +262,23 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data) mutex_unlock(&tps6586x->irq_lock); } +#ifdef CONFIG_PM_SLEEP +static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on) +{ + struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); + return irq_set_irq_wake(tps6586x->irq, on); +} +#else +#define tps6586x_irq_set_wake NULL +#endif + static struct irq_chip tps6586x_irq_chip = { .name = "tps6586x", .irq_bus_lock = tps6586x_irq_lock, .irq_bus_sync_unlock = tps6586x_irq_sync_unlock, .irq_disable = tps6586x_irq_disable, .irq_enable = tps6586x_irq_enable, + .irq_set_wake = tps6586x_irq_set_wake, }; static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq, @@ -331,6 +343,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, int new_irq_base; int irq_num = ARRAY_SIZE(tps6586x_irqs); + tps6586x->irq = irq; + mutex_init(&tps6586x->irq_lock); for (i = 0; i < 5; i++) { tps6586x->mask_reg[i] = 0xff; @@ -360,10 +374,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, "tps6586x", tps6586x); - if (!ret) { + if (!ret) device_init_wakeup(tps6586x->dev, 1); - enable_irq_wake(irq); - } return ret; } -- 2.7.4