From: Johan Hovold <johan@kernel.org>
To: linux-usb@vger.kernel.org
Cc: Davidlohr Bueso <dave@stgolabs.net>,
linux-kernel@vger.kernel.org, Johan Hovold <johan@kernel.org>,
stable <stable@vger.kernel.org>
Subject: [PATCH] USB: serial: mos7720: fix parallel-port state restore
Date: Wed, 4 Nov 2020 17:47:27 +0100 [thread overview]
Message-ID: <20201104164727.26351-1-johan@kernel.org> (raw)
The parallel-port restore operations is called when a driver claims the
port and is supposed to restore the provided state (e.g. saved when
releasing the port).
Fixes: b69578df7e98 ("USB: usbserial: mos7720: add support for parallel port on moschip 7715")
Cc: stable <stable@vger.kernel.org> # 2.6.35
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/serial/mos7720.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 5eed1078fac8..5a5d2a95070e 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -639,6 +639,8 @@ static void parport_mos7715_restore_state(struct parport *pp,
spin_unlock(&release_lock);
return;
}
+ mos_parport->shadowDCR = s->u.pc.ctr;
+ mos_parport->shadowECR = s->u.pc.ecr;
write_parport_reg_nonblock(mos_parport, MOS7720_DCR,
mos_parport->shadowDCR);
write_parport_reg_nonblock(mos_parport, MOS7720_ECR,
--
2.26.2
next reply other threads:[~2020-11-04 16:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 16:47 Johan Hovold [this message]
2020-11-04 16:59 ` [PATCH] USB: serial: mos7720: fix parallel-port state restore Greg KH
2020-11-05 8:05 ` Johan Hovold
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=20201104164727.26351-1-johan@kernel.org \
--to=johan@kernel.org \
--cc=dave@stgolabs.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stable@vger.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).