From: Ikjoon Jang <ikjn@chromium.org>
To: linux-usb@vger.kernel.org, devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alan Stern <stern@rowland.harvard.edu>,
Suwan Kim <suwan.kim027@gmail.com>,
"Gustavo A . R . Silva" <gustavo@embeddedor.com>,
Johan Hovold <johan@kernel.org>,
Nicolas Boitchat <drinkcat@chromium.org>,
Ikjoon Jang <ikjn@chromium.org>
Subject: [PATCH 0/2] usb: override hub device bInterval with device node
Date: Sun, 17 Nov 2019 11:31:49 +0800 [thread overview]
Message-ID: <20191117033149.259303-1-ikjn@chromium.org> (raw)
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 the specific hard wired hub supports changing its polling
interval, we can adjust hub's interval to reduce the time of waking up
from autosuspend or connect detection of HIDs.
Ikjoon Jang (2):
dt-bindings: usb: add "hub,interval" property
usb: overridable hub bInterval by device node
Documentation/devicetree/bindings/usb/usb-device.txt | 4 ++++
drivers/usb/core/config.c | 6 ++++++
2 files changed, 10 insertions(+)
--
2.24.0.432.g9d3f5f5b63-goog
next reply other threads:[~2019-11-17 3:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-17 3:31 Ikjoon Jang [this message]
2019-11-17 7:14 ` [PATCH 0/2] usb: override hub device bInterval with device node Greg Kroah-Hartman
2019-11-19 4:05 ` Ikjoon Jang
2019-11-17 15:46 ` Alan Stern
2019-11-19 5:18 ` Ikjoon Jang
2019-11-19 15:14 ` Alan Stern
2019-11-20 7:22 ` Ikjoon Jang
2019-11-20 16:19 ` Alan Stern
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