From: Johan Hovold <johan@kernel.org>
To: Ikjoon Jang <ikjn@chromium.org>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
GregKroah-Hartman <gregkh@linuxfoundation.org>,
RobHerring <robh+dt@kernel.org>,
MarkRutland <mark.rutland@arm.com>,
AlanStern <stern@rowland.harvard.edu>,
SuwanKim <suwan.kim027@gmail.com>,
"GustavoA . R . Silva" <gustavo@embeddedor.com>,
JohanHovold <johan@kernel.org>,
linux-kernel@vger.kernel.org, drinkcat@chromium.org
Subject: Re: [PATCH v4 0/2] usb: override hub device bInterval with device
Date: Tue, 3 Dec 2019 17:40:10 +0100 [thread overview]
Message-ID: <20191203164010.GG10631@localhost> (raw)
In-Reply-To: <20191203101521.198914-1-ikjn@chromium.org>
On Tue, Dec 03, 2019 at 06:15:21PM +0800, Ikjoon Jang wrote:
> This patchset enables hard wired hub device to use different bInterval
> from its descriptor when the hub has a combined device node.
>
> When we know reducing autosuspend delay for built-in HIDs is better for
> power saving, we can reduce it to the optimal value. But if a parent hub
> has a long bInterval, mouse lags a lot from more frequent autosuspend.
> So this enables overriding bInterval for a hard wired hub device only
> when we know that reduces the power consumption.
>
> Changes in v4
> - use of_property_read_u32() instead of of_property_read_u8()
What changed in the previous versions?
Johan
next prev parent reply other threads:[~2019-12-03 16:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 10:15 [PATCH v4 0/2] usb: override hub device bInterval with device Ikjoon Jang
2019-12-03 16:40 ` Johan Hovold [this message]
2019-12-04 2:46 ` Ikjoon Jang
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=20191203164010.GG10631@localhost \
--to=johan@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=drinkcat@chromium.org \
--cc=gregkh@linuxfoundation.org \
--cc=gustavo@embeddedor.com \
--cc=ikjn@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=stern@rowland.harvard.edu \
--cc=suwan.kim027@gmail.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.