From: Jean Delvare <jdelvare@suse.de>
To: Linux I2C <linux-i2c@vger.kernel.org>
Cc: "Volker Rümelin" <volker.ruemelin@googlemail.com>,
"Bjorn Helgaas" <helgaas@kernel.org>,
"Vaibhav Gupta" <vaibhavgupta40@gmail.com>,
"Wolfram Sang" <wsa@kernel.org>
Subject: [PATCH] i2c: i801: Exclude device from suspend direct complete optimization
Date: Thu, 10 Sep 2020 11:57:08 +0200 [thread overview]
Message-ID: <20200910115708.263c8e02@endymion> (raw)
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
---
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
next reply other threads:[~2020-09-10 9:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 9:57 Jean Delvare [this message]
2020-09-21 9:30 ` [PATCH] i2c: i801: Exclude device from suspend direct complete optimization Wolfram Sang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200910115708.263c8e02@endymion \
--to=jdelvare@suse.de \
--cc=helgaas@kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=vaibhavgupta40@gmail.com \
--cc=volker.ruemelin@googlemail.com \
--cc=wsa@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).