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authorAlan Stern2011-09-26 17:38:50 +0200
committerRafael J. Wysocki2011-10-16 23:28:51 +0200
commit8f88893c05f2f677f18f2ce5591b4bed5d4a7535 (patch)
tree4368e42a2c35ee018f7cd91b8fa6643f6ff2b852 /drivers/base
parent37cce26b32142f09a8967f6d238178af654b20de (diff)
PM: Update the policy on default wakeup settings
This patch (as1485) documents a change to the kernel's default wakeup policy. Devices that forward wakeup requests between buses should be enabled for wakeup by default. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/power/wakeup.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 84f7c7d5a098..14ee07e9cc43 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -276,7 +276,9 @@ EXPORT_SYMBOL_GPL(device_set_wakeup_capable);
*
* By default, most devices should leave wakeup disabled. The exceptions are
* devices that everyone expects to be wakeup sources: keyboards, power buttons,
- * possibly network interfaces, etc.
+ * possibly network interfaces, etc. Also, devices that don't generate their
+ * own wakeup requests but merely forward requests from one bus to another
+ * (like PCI bridges) should have wakeup enabled by default.
*/
int device_init_wakeup(struct device *dev, bool enable)
{