The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 845b89127bc5458d0152a4d63f165c62a22fcb70 Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@xxxxxxx>
Date: Thu, 10 Sep 2020 11:57:08 +0200
Subject: [PATCH] i2c: i801: Exclude device from suspend direct complete
optimization
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index ebb4c0b03057..bffca729e1c7 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1917,6 +1917,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
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);
