On Fri, Oct 04, 2024 at 01:14:10AM -0700, Dmitry Torokhov wrote: > On Tue, Sep 24, 2024 at 03:28:51AM +0000, Srivatsa S. Bhat wrote: > > [+linux-pm, Rafael, Len, Pavel] > > > > On Thu, Sep 12, 2024 at 02:27:49PM -0700, Erni Sri Satya Vennela wrote: > > > This reverts commit 62238f3aadc9bc56da70100e19ec61b9f8d72a5f. > > > > > > Remove keyboard as wakeup source since Suspend-to-Idle feature > > > is disabled. > > > > > > Signed-off-by: Erni Sri Satya Vennela <er...@linux.microsoft.com> > > > --- > > > drivers/input/serio/hyperv-keyboard.c | 12 ------------ > > > 1 file changed, 12 deletions(-) > > > > > > diff --git a/drivers/input/serio/hyperv-keyboard.c > > > b/drivers/input/serio/hyperv-keyboard.c > > > index 31d9dacd2fd1..b42c546636bf 100644 > > > --- a/drivers/input/serio/hyperv-keyboard.c > > > +++ b/drivers/input/serio/hyperv-keyboard.c > > > @@ -162,15 +162,6 @@ static void hv_kbd_on_receive(struct hv_device > > > *hv_dev, > > > serio_interrupt(kbd_dev->hv_serio, scan_code, 0); > > > } > > > spin_unlock_irqrestore(&kbd_dev->lock, flags); > > > - > > > - /* > > > - * Only trigger a wakeup on key down, otherwise > > > - * "echo freeze > /sys/power/state" can't really enter the > > > - * state because the Enter-UP can trigger a wakeup at once. > > > - */ > > > - if (!(info & IS_BREAK)) > > > - pm_wakeup_hard_event(&hv_dev->device); > > > - > > > break; > > > > > > default: > > > @@ -356,9 +347,6 @@ static int hv_kbd_probe(struct hv_device *hv_dev, > > > goto err_close_vmbus; > > > > > > serio_register_port(kbd_dev->hv_serio); > > > - > > > - device_init_wakeup(&hv_dev->device, true); > > If you do not want the keyboard to be a wakeup source by default maybe > change this to: > > device_set_wakeup_capable(&hv_dev->device, true); > > and leave the rest of the driver alone? > > Same for the HID change. > > Thanks. > device_set_wakeup_capable() sets the @dev's power.can_wakeup flag and adds wakeup-related attributes in sysfs.
Could you please help me understand why explicitly calling this function can be helpful in our use case? > -- > Dmitry
