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authorStephen Warren <swarren@nvidia.com>2013-09-07 03:17:13 +0400
committerLee Jones <lee.jones@linaro.org>2013-10-23 19:20:39 +0400
commit234506ad3f28d5eea85f739f637cde6d9e8f5a88 (patch)
tree110d147e21a57a3f7562c43e2de9b419c60190e9 /drivers/mfd/tps6586x.c
parentb5f90240e1ef0568a8c666da3c3be4c6a682c5a6 (diff)
downloadlinux-234506ad3f28d5eea85f739f637cde6d9e8f5a88.tar.xz
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 <swarren@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/tps6586x.c')
-rw-r--r--drivers/mfd/tps6586x.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index f54fe4d4f77b..68906b17ee52 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;
}