From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
Aswath Govindraju <a-govindraju@ti.com>,
linux-usb@vger.kernel.org
Subject: Re: usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller question
Date: Tue, 21 Jun 2022 10:23:29 +0300 [thread overview]
Message-ID: <YrFx8RFYgF6RWckE@kuha.fi.intel.com> (raw)
In-Reply-To: <TYYPR01MB70867A4B8CEBD6450A239D45F5B09@TYYPR01MB7086.jpnprd01.prod.outlook.com>
Hi Phil,
On Mon, Jun 20, 2022 at 09:04:10AM +0000, Phil Edworthy wrote:
> Hi Heikki,
>
> I have a board that uses the TI HD3SS3220 USB Type-C DRP port
> controller [1], however it doesn't have the interrupt line
> connected. How would you recommend I handle this? Should I get
> the driver to poll the i2c registers?
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/usb/typec/hd3ss3220.c?h=v5.19-rc3
If you have some other way of detecting connections on your system,
then we probable could consider some kind of notifier, but as a
general solution for the lack of interrupt, I think polling is the
only way.
I'll add the list, and Aswath and Roger. Aswath and Roger were looking
at the same problem with the tps6598x (tipd) driver.
thanks,
--
heikki
next parent reply other threads:[~2022-06-21 7:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <TYYPR01MB70867A4B8CEBD6450A239D45F5B09@TYYPR01MB7086.jpnprd01.prod.outlook.com>
2022-06-21 7:23 ` Heikki Krogerus [this message]
2022-06-21 8:28 ` usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller question Phil Edworthy
2022-06-21 8:40 ` Biju Das
2022-06-21 8:43 ` Phil Edworthy
2022-06-21 9:04 ` Biju Das
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=YrFx8RFYgF6RWckE@kuha.fi.intel.com \
--to=heikki.krogerus@linux.intel.com \
--cc=a-govindraju@ti.com \
--cc=biju.das.jz@bp.renesas.com \
--cc=linux-usb@vger.kernel.org \
--cc=phil.edworthy@renesas.com \
/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