Re: [RFC v4 2/7] Revert "extcon: usb-gpio: switch to use pm wakeirq apis"

From: Roger Quadros
Date: Thu Jun 09 2016 - 04:01:21 EST


-balbi@ti
+balbi@kernel

Hi,

On 08/06/16 16:48, Krzysztof Kozlowski wrote:
> This reverts commit 8106e404174253639731cc30a44f5b3ab764c5b7.

The above commit id is not present in v4.7-rc1 and this patch doesn't apply properly.
Can you please rebase this series on v4.7-rc1?

>
> When using PM wakeirq API only one wakeup IRQ can be set. However the
> driver will support also VBUS GPIO so we need two wakeup interrupts.
> ---
> drivers/extcon/extcon-usb-gpio.c | 19 +++++++++++++------
> 1 file changed, 13 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
> index 2512660dc4b9..a36aab007022 100644
> --- a/drivers/extcon/extcon-usb-gpio.c
> +++ b/drivers/extcon/extcon-usb-gpio.c
> @@ -24,7 +24,6 @@
> #include <linux/module.h>
> #include <linux/of_gpio.h>
> #include <linux/platform_device.h>
> -#include <linux/pm_wakeirq.h>
> #include <linux/slab.h>
> #include <linux/workqueue.h>
> #include <linux/acpi.h>
> @@ -143,8 +142,7 @@ static int usb_extcon_probe(struct platform_device *pdev)
> }
>
> platform_set_drvdata(pdev, info);
> - device_init_wakeup(dev, true);
> - dev_pm_set_wake_irq(dev, info->id_irq);
> + device_init_wakeup(dev, 1);
>
> /* Perform initial detection */
> usb_extcon_detect_cable(&info->wq_detcable.work);
> @@ -158,9 +156,6 @@ static int usb_extcon_remove(struct platform_device *pdev)
>
> cancel_delayed_work_sync(&info->wq_detcable);
>
> - dev_pm_clear_wake_irq(&pdev->dev);
> - device_init_wakeup(&pdev->dev, false);
> -
> return 0;
> }
>
> @@ -170,6 +165,12 @@ static int usb_extcon_suspend(struct device *dev)
> struct usb_extcon_info *info = dev_get_drvdata(dev);
> int ret = 0;
>
> + if (device_may_wakeup(dev)) {
> + ret = enable_irq_wake(info->id_irq);
> + if (ret)
> + return ret;
> + }
> +
> /*
> * We don't want to process any IRQs after this point
> * as GPIOs used behind I2C subsystem might not be
> @@ -185,6 +186,12 @@ static int usb_extcon_resume(struct device *dev)
> struct usb_extcon_info *info = dev_get_drvdata(dev);
> int ret = 0;
>
> + if (device_may_wakeup(dev)) {
> + ret = disable_irq_wake(info->id_irq);
> + if (ret)
> + return ret;
> + }
> +
> enable_irq(info->id_irq);
> if (!device_may_wakeup(dev))
> queue_delayed_work(system_power_efficient_wq,
>

--
cheers,
-roger