The patch below does not apply to the 4.19-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@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 845b89127bc5458d0152a4d63f165c62a22fcb70 Mon Sep 17 00:00:00 2001

From: Jean Delvare jdelvare@suse.de 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@googlemail.com Signed-off-by: Jean Delvare jdelvare@suse.de Cc: stable@vger.kernel.org Signed-off-by: Wolfram Sang wsa@kernel.org

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);