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Date: Tue, 7 Jan 2014 09:48:43 +0000
From: Rongjun Ying <Rongjun.Ying@....com>
To: Chanwoo Choi <cw00.choi@...sung.com>,
RongJun Ying <rjying@...il.com>
CC: MyungJoo Ham <myungjoo.ham@...sung.com>,
Barry Song <Barry.Song@....com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
DL-SHA-WorkGroupLinux <DL-SHA-WorkGroupLinux@...ernal.csr.com>
Subject: RE: [PATCH v3] extcon: gpio: Add power resume support
> -----Original Message-----
> From: Chanwoo Choi [mailto:cw00.choi@...sung.com]
> Sent: Tuesday, January 07, 2014 2:07 PM
> To: RongJun Ying
> Cc: MyungJoo Ham; Barry Song; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.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:
> > From: Rongjun Ying <rongjun.ying@....com>
> >
> > 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 <rongjun.ying@....com>
> > Reviewed-by: Barry Song <Baohua.Song@....com>
> > ---
> > -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
> >
> >
>
>
>
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