[PATCH v3] extcon: gpio: Add power resume support

Subsystems: external connector subsystem (extcon), the rest

STALE4623d REVIEWED: 1 (0M)

1 review trailer.

6 messages, 3 authors, 2014-01-09 · open the first message on its own page

[PATCH v3] extcon: gpio: Add power resume support

From: RongJun Ying <hidden>
Date: 2014-01-07 04:56:51 

From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's proposal.

 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work)
@@ -103,6 +104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct platform_device *pdev)
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev)
+{
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
+};
+
 static struct platform_driver gpio_extcon_driver = {
 	.probe		= gpio_extcon_probe,
 	.remove		= gpio_extcon_remove,
 	.driver		= {
 		.name	= "extcon-gpio",
 		.owner	= THIS_MODULE,
+		.pm = &gpio_extcon_pm_ops,
 	},
 };

diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 4195810..c7f0c3e 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -51,6 +51,7 @@ struct gpio_extcon_platform_data {
 	/* if NULL, "0" or "1" will be printed */
 	const char *state_on;
 	const char *state_off;
+	bool check_on_resume;
 };

 #endif /* __EXTCON_GPIO_H__ */
--
1.7.5.4

Re: [PATCH v3] extcon: gpio: Add power resume support

From: Chanwoo Choi <cw00.choi@samsung.com>
Date: 2014-01-07 06:07:13 

This patch has conflict as following:
You have to implement extcon patch based mainline extcon-next branch.

Applying: extcon: gpio: Add power resume support
error: patch failed: drivers/extcon/extcon-gpio.c:103
error: drivers/extcon/extcon-gpio.c: patch does not apply
Patch failed at 0001 extcon: gpio: Add power resume support
The copy of the patch that failed is found in:
   /home/cwchoi00/kernel/git.kernel/extcon/.git/rebase-apply/patch
When you have resolved this problem, run "git am --resolved".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

This time, I will manually apply this patch on extcon branch.

Thanks,
Chanwoo Choi

On 01/07/2014 01:56 PM, RongJun Ying wrote:
quoted hunk
From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's proposal.

 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work)
@@ -103,6 +104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct platform_device *pdev)
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev)
+{
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
+};
+
 static struct platform_driver gpio_extcon_driver = {
 	.probe		= gpio_extcon_probe,
 	.remove		= gpio_extcon_remove,
 	.driver		= {
 		.name	= "extcon-gpio",
 		.owner	= THIS_MODULE,
+		.pm = &gpio_extcon_pm_ops,
 	},
 };

diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 4195810..c7f0c3e 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -51,6 +51,7 @@ struct gpio_extcon_platform_data {
 	/* if NULL, "0" or "1" will be printed */
 	const char *state_on;
 	const char *state_off;
+	bool check_on_resume;
 };

 #endif /* __EXTCON_GPIO_H__ */
--
1.7.5.4

Re: [PATCH v3] extcon: gpio: Add power resume support

From: Chanwoo Choi <cw00.choi@samsung.com>
Date: 2014-01-07 06:09:47 

Hi RongJun,

On 01/07/2014 01:56 PM, RongJun Ying wrote:
quoted hunk
From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's proposal.

 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work)
@@ -103,6 +104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct platform_device *pdev)
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev)
+{
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
If CONFIG_PM_SLEEP is undefined, gpio_extcon_pm_ops cannot find gpio_extcon_resume function.
You should define dummy function for gpio_extcon_resume function.

RE: [PATCH v3] extcon: gpio: Add power resume support

From: Rongjun Ying <hidden>
Date: 2014-01-07 09:49:22 

-----Original Message-----
From: Chanwoo Choi [mailto:cw00.choi at samsung.com]
Sent: Tuesday, January 07, 2014 2:07 PM
To: RongJun Ying
Cc: MyungJoo Ham; Barry Song; linux-arm-kernel at lists.infradead.org;
linux-kernel at vger.kernel.org; DL-SHA-WorkGroupLinux; Rongjun Ying
Subject: Re: [PATCH v3] extcon: gpio: Add power resume support

This patch has conflict as following:
You have to implement extcon patch based mainline extcon-next branch.

Applying: extcon: gpio: Add power resume support
error: patch failed: drivers/extcon/extcon-gpio.c:103
error: drivers/extcon/extcon-gpio.c: patch does not apply Patch failed
at 0001 extcon: gpio: Add power resume support The copy of the patch
that failed is found in:
   /home/cwchoi00/kernel/git.kernel/extcon/.git/rebase-apply/patch
When you have resolved this problem, run "git am --resolved".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

This time, I will manually apply this patch on extcon branch.

Thanks,
Chanwoo Choi
Thank you.

RongJun Ying

On 01/07/2014 01:56 PM, RongJun Ying wrote:
quoted
From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's
proposal.
quoted
 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c
b/drivers/extcon/extcon-gpio.c index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work) @@ -103,6
+104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct
platform_device *pdev)
quoted
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev) {
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume) };
+
 static struct platform_driver gpio_extcon_driver = {
 	.probe		= gpio_extcon_probe,
 	.remove		= gpio_extcon_remove,
 	.driver		= {
 		.name	= "extcon-gpio",
 		.owner	= THIS_MODULE,
+		.pm = &gpio_extcon_pm_ops,
 	},
 };

diff --git a/include/linux/extcon/extcon-gpio.h
b/include/linux/extcon/extcon-gpio.h
index 4195810..c7f0c3e 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -51,6 +51,7 @@ struct gpio_extcon_platform_data {
 	/* if NULL, "0" or "1" will be printed */
 	const char *state_on;
 	const char *state_off;
+	bool check_on_resume;
 };

 #endif /* __EXTCON_GPIO_H__ */
--
1.7.5.4



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RE: [PATCH v3] extcon: gpio: Add power resume support

    

      From: Rongjun Ying <hidden>

      Date: 2014-01-07 10:11:49 
    

  

  
-----Original Message-----
From: Chanwoo Choi [mailto:cw00.choi at samsung.com]
Sent: Tuesday, January 07, 2014 2:09 PM
To: RongJun Ying
Cc: MyungJoo Ham; Barry Song; linux-arm-kernel at lists.infradead.org;
linux-kernel at vger.kernel.org; DL-SHA-WorkGroupLinux; Rongjun Ying
Subject: Re: [PATCH v3] extcon: gpio: Add power resume support

Hi RongJun,

On 01/07/2014 01:56 PM, RongJun Ying wrote:
quoted
From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's
proposal.
quoted
 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c
b/drivers/extcon/extcon-gpio.c index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work) @@ -103,6
+104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct
platform_device *pdev)
quoted
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev) {
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
If CONFIG_PM_SLEEP is undefined, gpio_extcon_pm_ops cannot find
gpio_extcon_resume function.
You should define dummy function for gpio_extcon_resume function.

In the include/Linux/pm.h
If CONFIG_PM_SLEEP is undefined, the SET_SYSTEM_SLEEP_PM_OPS macro is bypassed.

#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
        .suspend = suspend_fn, \
        .resume = resume_fn, \
        .freeze = suspend_fn, \
        .thaw = resume_fn, \
        .poweroff = suspend_fn, \
        .restore = resume_fn,
#else
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif

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Re: [PATCH v3] extcon: gpio: Add power resume support

    

      From: Chanwoo Choi <cw00.choi@samsung.com>

      Date: 2014-01-09 00:54:34 
    

  

  
Hi Rongjun,

OK, I applied this patch on extcon-next branch.

Thannks,
Chanwoo Choi

On 01/07/2014 06:02 PM, Rongjun Ying wrote:
quoted
-----Original Message-----
From: Chanwoo Choi [mailto:cw00.choi at samsung.com]
Sent: Tuesday, January 07, 2014 2:09 PM
To: RongJun Ying
Cc: MyungJoo Ham; Barry Song; linux-arm-kernel at lists.infradead.org;
linux-kernel at vger.kernel.org; DL-SHA-WorkGroupLinux; Rongjun Ying
Subject: Re: [PATCH v3] extcon: gpio: Add power resume support

Hi RongJun,

On 01/07/2014 01:56 PM, RongJun Ying wrote:
quoted
From: Rongjun Ying <redacted>

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <redacted>
Reviewed-by: Barry Song <redacted>
---
 -v3:
 'check_on_resume' instead of 'load_sleep_irq' as Chanwoo Choi's
proposal.
quoted
 drivers/extcon/extcon-gpio.c       |   20 ++++++++++++++++++++
 include/linux/extcon/extcon-gpio.h |    1 +
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/extcon/extcon-gpio.c
b/drivers/extcon/extcon-gpio.c index 7e0dff5..fde52c1 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -40,6 +40,7 @@ struct gpio_extcon_data {
 	int irq;
 	struct delayed_work work;
 	unsigned long debounce_jiffies;
+	bool check_on_resume;
 };

 static void gpio_extcon_work(struct work_struct *work) @@ -103,6
+104,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
+	extcon_data->check_on_resume = pdata->check_on_resume;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
 	if (pdata->debounce) {
@@ -159,12 +161,30 @@ static int gpio_extcon_remove(struct
platform_device *pdev)
quoted
 	return 0;
 }

+#ifdef CONFIG_PM_SLEEP
+static int gpio_extcon_resume(struct device *dev) {
+	struct gpio_extcon_data *extcon_data;
+
+	extcon_data = dev_get_drvdata(dev);
+	if (extcon_data->check_on_resume)
+		queue_delayed_work(system_power_efficient_wq,
+			&extcon_data->work, extcon_data->debounce_jiffies);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gpio_extcon_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
If CONFIG_PM_SLEEP is undefined, gpio_extcon_pm_ops cannot find
gpio_extcon_resume function.
You should define dummy function for gpio_extcon_resume function.

In the include/Linux/pm.h
If CONFIG_PM_SLEEP is undefined, the SET_SYSTEM_SLEEP_PM_OPS macro is bypassed.

#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
        .suspend = suspend_fn, \
        .resume = resume_fn, \
        .freeze = suspend_fn, \
        .thaw = resume_fn, \
        .poweroff = suspend_fn, \
        .restore = resume_fn,
#else
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif
quoted

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