* [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls
@ 2015-01-15 2:00 ` Dmitry Eremin-Solenikov
0 siblings, 0 replies; 8+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-01-15 2:00 UTC (permalink / raw)
To: Sebastian Reichel; +Cc: linux-pm, linux-kernel, linux-arm-kernel, stable
enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
generate the wakeup event (and thus resume should call disable_irq_wake).
Currently gpio-charger driver has this logic inverted. Correct that thus
correcting enable/disable_irq_wake() calls balance.
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/power/gpio-charger.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 7536933..e5deb11 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -168,7 +168,7 @@ static int gpio_charger_suspend(struct device *dev)
if (device_may_wakeup(dev))
gpio_charger->wakeup_enabled =
- enable_irq_wake(gpio_charger->irq);
+ !enable_irq_wake(gpio_charger->irq);
return 0;
}
@@ -178,7 +178,7 @@ static int gpio_charger_resume(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct gpio_charger *gpio_charger = platform_get_drvdata(pdev);
- if (gpio_charger->wakeup_enabled)
+ if (device_may_wakeup(dev) && gpio_charger->wakeup_enabled)
disable_irq_wake(gpio_charger->irq);
power_supply_changed(&gpio_charger->charger);
--
2.1.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls
@ 2015-01-15 2:00 ` Dmitry Eremin-Solenikov
0 siblings, 0 replies; 8+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-01-15 2:00 UTC (permalink / raw)
To: linux-arm-kernel
enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
generate the wakeup event (and thus resume should call disable_irq_wake).
Currently gpio-charger driver has this logic inverted. Correct that thus
correcting enable/disable_irq_wake() calls balance.
Cc: stable at vger.kernel.org
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/power/gpio-charger.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 7536933..e5deb11 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -168,7 +168,7 @@ static int gpio_charger_suspend(struct device *dev)
if (device_may_wakeup(dev))
gpio_charger->wakeup_enabled =
- enable_irq_wake(gpio_charger->irq);
+ !enable_irq_wake(gpio_charger->irq);
return 0;
}
@@ -178,7 +178,7 @@ static int gpio_charger_resume(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct gpio_charger *gpio_charger = platform_get_drvdata(pdev);
- if (gpio_charger->wakeup_enabled)
+ if (device_may_wakeup(dev) && gpio_charger->wakeup_enabled)
disable_irq_wake(gpio_charger->irq);
power_supply_changed(&gpio_charger->charger);
--
2.1.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH RESEND V2 2/2] power: collie_battery: support generating wakeup event
2015-01-15 2:00 ` Dmitry Eremin-Solenikov
@ 2015-01-15 2:00 ` Dmitry Eremin-Solenikov
-1 siblings, 0 replies; 8+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-01-15 2:00 UTC (permalink / raw)
To: Sebastian Reichel; +Cc: linux-pm, linux-kernel, linux-arm-kernel
Teach collie_battery driver to communicate to the kernel that it can
generate wakeup events. Handle enabling/disabling wakeup on battery full
event in suspend/resume callbacks.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/power/collie_battery.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
index d02ae02..594e4db 100644
--- a/drivers/power/collie_battery.c
+++ b/drivers/power/collie_battery.c
@@ -26,6 +26,7 @@
static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
static struct work_struct bat_work;
static struct ucb1x00 *ucb;
+static int wakeup_enabled;
struct collie_bat {
int status;
@@ -291,11 +292,21 @@ static int collie_bat_suspend(struct ucb1x00_dev *dev)
{
/* flush all pending status updates */
flush_work(&bat_work);
+
+ if (device_may_wakeup(&dev->ucb->dev) &&
+ collie_bat_main.status == POWER_SUPPLY_STATUS_CHARGING)
+ wakeup_enabled = !enable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
+ else
+ wakeup_enabled = 0;
+
return 0;
}
static int collie_bat_resume(struct ucb1x00_dev *dev)
{
+ if (wakeup_enabled)
+ disable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
+
/* things may have changed while we were away */
schedule_work(&bat_work);
return 0;
@@ -334,10 +345,15 @@ static int collie_bat_probe(struct ucb1x00_dev *dev)
collie_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"main full", &collie_bat_main);
- if (!ret) {
- schedule_work(&bat_work);
- return 0;
- }
+ if (ret)
+ goto err_irq;
+
+ device_init_wakeup(&ucb->dev, 1);
+ schedule_work(&bat_work);
+
+ return 0;
+
+err_irq:
power_supply_unregister(&collie_bat_bu.psy);
err_psy_reg_bu:
power_supply_unregister(&collie_bat_main.psy);
--
2.1.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH RESEND V2 2/2] power: collie_battery: support generating wakeup event
@ 2015-01-15 2:00 ` Dmitry Eremin-Solenikov
0 siblings, 0 replies; 8+ messages in thread
From: Dmitry Eremin-Solenikov @ 2015-01-15 2:00 UTC (permalink / raw)
To: linux-arm-kernel
Teach collie_battery driver to communicate to the kernel that it can
generate wakeup events. Handle enabling/disabling wakeup on battery full
event in suspend/resume callbacks.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
drivers/power/collie_battery.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
index d02ae02..594e4db 100644
--- a/drivers/power/collie_battery.c
+++ b/drivers/power/collie_battery.c
@@ -26,6 +26,7 @@
static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
static struct work_struct bat_work;
static struct ucb1x00 *ucb;
+static int wakeup_enabled;
struct collie_bat {
int status;
@@ -291,11 +292,21 @@ static int collie_bat_suspend(struct ucb1x00_dev *dev)
{
/* flush all pending status updates */
flush_work(&bat_work);
+
+ if (device_may_wakeup(&dev->ucb->dev) &&
+ collie_bat_main.status == POWER_SUPPLY_STATUS_CHARGING)
+ wakeup_enabled = !enable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
+ else
+ wakeup_enabled = 0;
+
return 0;
}
static int collie_bat_resume(struct ucb1x00_dev *dev)
{
+ if (wakeup_enabled)
+ disable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
+
/* things may have changed while we were away */
schedule_work(&bat_work);
return 0;
@@ -334,10 +345,15 @@ static int collie_bat_probe(struct ucb1x00_dev *dev)
collie_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"main full", &collie_bat_main);
- if (!ret) {
- schedule_work(&bat_work);
- return 0;
- }
+ if (ret)
+ goto err_irq;
+
+ device_init_wakeup(&ucb->dev, 1);
+ schedule_work(&bat_work);
+
+ return 0;
+
+err_irq:
power_supply_unregister(&collie_bat_bu.psy);
err_psy_reg_bu:
power_supply_unregister(&collie_bat_main.psy);
--
2.1.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls
2015-01-15 2:00 ` Dmitry Eremin-Solenikov
@ 2015-01-15 13:44 ` Sebastian Reichel
-1 siblings, 0 replies; 8+ messages in thread
From: Sebastian Reichel @ 2015-01-15 13:44 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov; +Cc: linux-pm, linux-kernel, linux-arm-kernel, stable
[-- Attachment #1: Type: text/plain, Size: 475 bytes --]
Hi,
On Thu, Jan 15, 2015 at 05:00:37AM +0300, Dmitry Eremin-Solenikov wrote:
> enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
> generate the wakeup event (and thus resume should call disable_irq_wake).
> Currently gpio-charger driver has this logic inverted. Correct that thus
> correcting enable/disable_irq_wake() calls balance.
Thanks, applied:
http://git.infradead.org/battery-2.6.git/commit/9a2fb8ac9677ab9cf17ab336e06b59d93a57f4a4
-- Sebastian
[-- Attachment #2: Digital signature --]
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls
@ 2015-01-15 13:44 ` Sebastian Reichel
0 siblings, 0 replies; 8+ messages in thread
From: Sebastian Reichel @ 2015-01-15 13:44 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
On Thu, Jan 15, 2015 at 05:00:37AM +0300, Dmitry Eremin-Solenikov wrote:
> enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
> generate the wakeup event (and thus resume should call disable_irq_wake).
> Currently gpio-charger driver has this logic inverted. Correct that thus
> correcting enable/disable_irq_wake() calls balance.
Thanks, applied:
http://git.infradead.org/battery-2.6.git/commit/9a2fb8ac9677ab9cf17ab336e06b59d93a57f4a4
-- Sebastian
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH RESEND V2 2/2] power: collie_battery: support generating wakeup event
2015-01-15 2:00 ` Dmitry Eremin-Solenikov
@ 2015-01-15 13:44 ` Sebastian Reichel
-1 siblings, 0 replies; 8+ messages in thread
From: Sebastian Reichel @ 2015-01-15 13:44 UTC (permalink / raw)
To: Dmitry Eremin-Solenikov; +Cc: linux-pm, linux-kernel, linux-arm-kernel
[-- Attachment #1: Type: text/plain, Size: 383 bytes --]
Hi,
On Thu, Jan 15, 2015 at 05:00:38AM +0300, Dmitry Eremin-Solenikov wrote:
> Teach collie_battery driver to communicate to the kernel that it can
> generate wakeup events. Handle enabling/disabling wakeup on battery full
> event in suspend/resume callbacks.
Thanks, applied:
http://git.infradead.org/battery-2.6.git/commit/a465005643a4c1e02681b02075082fc6c7fa076a
-- Sebastian
[-- Attachment #2: Digital signature --]
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH RESEND V2 2/2] power: collie_battery: support generating wakeup event
@ 2015-01-15 13:44 ` Sebastian Reichel
0 siblings, 0 replies; 8+ messages in thread
From: Sebastian Reichel @ 2015-01-15 13:44 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
On Thu, Jan 15, 2015 at 05:00:38AM +0300, Dmitry Eremin-Solenikov wrote:
> Teach collie_battery driver to communicate to the kernel that it can
> generate wakeup events. Handle enabling/disabling wakeup on battery full
> event in suspend/resume callbacks.
Thanks, applied:
http://git.infradead.org/battery-2.6.git/commit/a465005643a4c1e02681b02075082fc6c7fa076a
-- Sebastian
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^ permalink raw reply [flat|nested] 8+ messages in thread
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2015-01-15 2:00 [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls Dmitry Eremin-Solenikov
2015-01-15 2:00 ` Dmitry Eremin-Solenikov
2015-01-15 2:00 ` [PATCH RESEND V2 2/2] power: collie_battery: support generating wakeup event Dmitry Eremin-Solenikov
2015-01-15 2:00 ` Dmitry Eremin-Solenikov
2015-01-15 13:44 ` Sebastian Reichel
2015-01-15 13:44 ` Sebastian Reichel
2015-01-15 13:44 ` [PATCH RESEND V2 1/2] power: gpio-charger: balance enable/disable_irq_wake calls Sebastian Reichel
2015-01-15 13:44 ` Sebastian Reichel
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