By default, PCI drivers with runtime PM enabled will skip the calls
to suspend and resume on system PM. For this driver, we don't want
that, as we need to perform additional steps for system PM to work
properly on all systems. So instruct the PM core to not skip these
calls.
Fixes: a9c8088c7988 ("i2c: i801: Don't restore config registers on runtime PM")
Reported-by: Volker Rümelin <volker.ruemelin@xxxxxxxxxxxxxx>
Signed-off-by: Jean Delvare <jdelvare@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/i2c/busses/i2c-i801.c | 1 +
1 file changed, 1 insertion(+)
--- linux-5.8.orig/drivers/i2c/busses/i2c-i801.c 2020-09-09 18:41:55.118961045 +0200
+++ linux-5.8/drivers/i2c/busses/i2c-i801.c 2020-09-10 11:36:40.352858458 +0200
@@ -1917,6 +1917,7 @@ static int i801_probe(struct pci_dev *de
pci_set_drvdata(dev, priv);
+ dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
pm_runtime_set_autosuspend_delay(&dev->dev, 1000);
pm_runtime_use_autosuspend(&dev->dev);
pm_runtime_put_autosuspend(&dev->dev);
--
Jean Delvare
SUSE L3 Support
