linux-kernel - [PATCH 0/2] usb: override hub device bInterval with device node

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Message-Id: <20191117033149.259303-1-ikjn@chromium.org>
Date:   Sun, 17 Nov 2019 11:31:49 +0800
From:   Ikjoon Jang <ikjn@...omium.org>
To:     linux-usb@...r.kernel.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alan Stern <stern@...land.harvard.edu>,
        Suwan Kim <suwan.kim027@...il.com>,
        "Gustavo A . R . Silva" <gustavo@...eddedor.com>,
        Johan Hovold <johan@...nel.org>,
        Nicolas Boitchat <drinkcat@...omium.org>,
        Ikjoon Jang <ikjn@...omium.org>
Subject: [PATCH 0/2] usb: override hub device bInterval with device node

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