On 2013-12-04 18:16, Dmitry Torokhov wrote:
On Mon, Dec 02, 2013 at 09:40:20PM +0100, Manuel Krause wrote:
On 2013-12-02 20:07, Dmitry Torokhov wrote:
Thank you Manuel, but IO think the patch is not complete as we need to
re-enable PNP devices after we make a snapshot to make sure they are
working and can handle saving the data. Coudl you please try the patch
below?
PNP: fix restoring devices after hibernation
From: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
On returning from hibernation 'restore; callback is called, not
'resume'.
This fixes breakage introduced by commit
eaf140b60ec961252083ab8adaf67aef29a362dd
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
drivers/pnp/driver.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index a39ee38..2bd5c5f 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -197,6 +197,11 @@ static int pnp_bus_freeze(struct device *dev)
return __pnp_bus_suspend(dev, PMSG_FREEZE);
}
+static int pnp_bus_poweroff(struct device *dev)
+{
+ return __pnp_bus_suspend(dev, PMSG_HIBERNATE);
+}
+
static int pnp_bus_resume(struct device *dev)
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@@ -234,9 +239,14 @@ static int pnp_bus_resume(struct device *dev)
}
static const struct dev_pm_ops pnp_bus_dev_pm_ops = {
+ /* Suspend callbacks */
.suspend = pnp_bus_suspend,
- .freeze = pnp_bus_freeze,
.resume = pnp_bus_resume,
+ /* Hibernate callbacks */
+ .freeze = pnp_bus_freeze,
+ .thaw = pnp_bus_resume,
+ .poweroff = pnp_bus_poweroff,
+ .restore = pnp_bus_resume,
};
struct bus_type pnp_bus_type = {
ALSO, YES, this second patch version does cure the issue, on here,
too.
Rafael,
Will you please take this patch in? It would also make sense to add it
to stable I think.
Thanks.
This patch works very well for many following hibernate/resume
cyles, now, since the patch is applied. And it doesn't show any
side-effects for me.
Thank you for "taking it in".
Best regards, Manuel Krause
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