From: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Felipe Balbi <balbi@kernel.org>
Cc: <linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <v.anuragkumar@gmail.com>,
Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
Subject: [PATCH 0/3] usb: gadget: Add support for disabling U1 and U2 entries
Date: Thu, 2 May 2019 15:50:20 +0530 [thread overview]
Message-ID: <1556792423-4833-1-git-send-email-anurag.kumar.vulisha@xilinx.com> (raw)
Gadget applications may have a requirement to disable the U1 and U2
entry based on the usecase. For example, when performing performance
benchmarking on mass storage gadget the U1 and U2 entries can be disabled.
Another example is when periodic transfers like ISOC transfers are used
with bInterval of 1 which doesn't require the link to enter into U1 or U2
state (since ping is issued from host for every uframe interval). In this
case the U1 and U2 entry can be disabled. This can be done by setting
U1DevExitLat and U2DevExitLat values to 0 in the BOS descriptor. Host on
seeing 0 value for U1DevExitLat and U2DevExitLat, it doesn't send SET_SEL
commands to the gadget. Thus entry of U1 and U2 states can be avioded.
This patch updates the same.
Anurag Kumar Vulisha (3):
doc: dt: bindings: usb: dwc3: Update entries for disabling U1 and U2
usb: gadget: send usb_gadget as an argument in get_config_params
usb: dwc3: gadget: Add support for disabling U1 and U2 entries
Documentation/devicetree/bindings/usb/dwc3.txt | 2 ++
drivers/usb/dwc3/core.c | 4 ++++
drivers/usb/dwc3/core.h | 4 ++++
drivers/usb/dwc3/gadget.c | 19 +++++++++++++++++++
drivers/usb/dwc3/gadget.h | 6 ++++++
drivers/usb/gadget/composite.c | 2 +-
include/linux/usb/gadget.h | 3 ++-
7 files changed, 38 insertions(+), 2 deletions(-)
--
2.1.1
next reply other threads:[~2019-05-02 10:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-02 10:20 Anurag Kumar Vulisha [this message]
2019-05-02 10:20 ` [PATCH 1/3] doc: dt: bindings: usb: dwc3: Update entries for disabling U1 and U2 Anurag Kumar Vulisha
2019-05-02 10:20 ` [PATCH 2/3] usb: gadget: send usb_gadget as an argument in get_config_params Anurag Kumar Vulisha
2019-05-02 10:20 ` [PATCH 3/3] usb: dwc3: gadget: Add support for disabling U1 and U2 entries Anurag Kumar Vulisha
2019-05-06 19:21 ` Thinh Nguyen
2019-05-06 20:58 ` Claus H. Stovgaard
2019-05-07 9:50 ` Anurag Kumar Vulisha
2019-05-07 13:17 ` Claus H. Stovgaard
2019-05-07 14:09 ` Anurag Kumar Vulisha
2019-05-07 18:42 ` Thinh Nguyen
2019-05-07 9:46 ` Anurag Kumar Vulisha
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=1556792423-4833-1-git-send-email-anurag.kumar.vulisha@xilinx.com \
--to=anurag.kumar.vulisha@xilinx.com \
--cc=balbi@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=v.anuragkumar@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 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).