On Wed, 05 Dec 2012 00:06:46 +0800, Zhang Rui <rui.zhang@xxxxxxxxx> wrote : > On Tue, 2012-12-04 at 01:02 +0100, Rafael J. Wysocki wrote: > > On Monday, December 03, 2012 04:15:06 PM Zhang Rui wrote: > > > From 3e7b4da3783d200f35568f72b3b25f16df546ffe Mon Sep 17 00:00:00 2001 > > > From: Zhang Rui <rui.zhang@xxxxxxxxx> > > > Date: Fri, 30 Nov 2012 14:35:43 +0800 > > > Subject: [PATCH] ACPI : do not use Lid and Sleep button for S5 wakeup > > > > > > When system enters power off, the _PSW of Lid device is enabled. > > > But this may cause the system to reboot instead of power off. > > > > > > https://bugzilla.kernel.org/show_bug.cgi?id=35262 > > > > > > A proper way to fix this is to always disable lid wakeup capability > > > for S5. > > > > While I understand the motivation, quite frankly I don't understand the patch. :-) > > > > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > > > --- > > > drivers/acpi/scan.c | 7 ++++++- > > > 1 file changed, 6 insertions(+), 1 deletion(-) > > > > > > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c > > > index d1ecca2..f20020a 100644 > > > --- a/drivers/acpi/scan.c > > > +++ b/drivers/acpi/scan.c > > > @@ -807,8 +807,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle, > > > static void acpi_bus_set_run_wake_flags(struct acpi_device *device) > > > { > > > struct acpi_device_id button_device_ids[] = { > > > - {"PNP0C0D", 0}, > > > {"PNP0C0C", 0}, > > > + {"PNP0C0D", 0}, > > > {"PNP0C0E", 0}, > > > {"", 0}, > > > }; > > > @@ -820,6 +820,11 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device) > > > /* Power button, Lid switch always enable wakeup */ > > > if (!acpi_match_device_ids(device, button_device_ids)) { > > > device->wakeup.flags.run_wake = 1; > > > + if (!acpi_match_device_ids(device, &button_device_ids[1])) { > > > + /* Do not use Lid/sleep button for S5 wakeup */ > > > + if (device->wakeup.gpe_number == 5) > > > + device->wakeup.gpe_number = 4; > > > > Why do you want to change the wakeup GPE number for those devices? It appears > > to be based on some extra knowledge that should be documented. > > > > Moreover, this doesn't look like the right thing to do anyway. Shouldn't we > > just change device->wakeup.sleep_state to ACPI_STATE_S4 (if it was S5) instead? > > oops, this is really embarrassing. > I made a stupid mistake in this patch, and you are right that I was > trying to override the device->wakeup.sleep_state to ACPI_STATE_S4. > > refreshed patch attached. > Patch has been test by faking a lid device in custom DSDT table. > But I still prefer to get the test result in the bug report, > before pushing it upstream. > > From 64e16e442b7d33801b5c1a41cf5c87d4d8ff1e10 Mon Sep 17 00:00:00 2001 > From: Zhang Rui <rui.zhang@xxxxxxxxx> > Date: Fri, 30 Nov 2012 14:35:43 +0800 > Subject: [PATCH 1/2] ACPI : do not use Lid and Sleep button for S5 wakeup > > When system enters power off, the _PSW of Lid device is enabled. > But this may cause the system to reboot instead of power off. > > A proper way to fix this is to always disable lid wakeup capability for S5. > https://bugzilla.kernel.org/show_bug.cgi?id=35262 > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> It works ! (On a Toshiba C870-12N, which exhibits the problem). Tested-by: Anisse Astier <anisse@xxxxxxxxx> > --- > drivers/acpi/scan.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c > index d1ecca2..35674c2 100644 > --- a/drivers/acpi/scan.c > +++ b/drivers/acpi/scan.c > @@ -807,8 +807,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle, > static void acpi_bus_set_run_wake_flags(struct acpi_device *device) > { > struct acpi_device_id button_device_ids[] = { > - {"PNP0C0D", 0}, > {"PNP0C0C", 0}, > + {"PNP0C0D", 0}, > {"PNP0C0E", 0}, > {"", 0}, > }; Why do you need to change the device order ? Is just cosmetic ? (alphabetical) > @@ -820,6 +820,11 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device) > /* Power button, Lid switch always enable wakeup */ > if (!acpi_match_device_ids(device, button_device_ids)) { > device->wakeup.flags.run_wake = 1; > + if (!acpi_match_device_ids(device, &button_device_ids[1])) { > + /* Do not use Lid/sleep button for S5 wakeup */ > + if (device->wakeup.sleep_state == ACPI_STATE_S5) > + device->wakeup.sleep_state = ACPI_STATE_S4; > + } > device_set_wakeup_capable(&device->dev, true); > return; > } What if someone wants to use power-on with LID ? Is it an accepted use case ? Regards, Anisse -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
