Linux-USB Archive on lore.kernel.org
 help / color / Atom feed
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Biju Das <biju.das@bp.renesas.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Adam Thomson <Adam.Thomson.Opensource@diasemi.com>,
	Li Jun <jun.li@nxp.com>,
	Badhri Jagan Sridharan <badhri@google.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Hans de Goede <hdegoede@redhat.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Min Guo <min.guo@mediatek.com>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Nagarjuna Kristam <nkristam@nvidia.com>,
	Yu Chen <chenyu56@huawei.com>
Subject: [PATCH next v10 01/11] dt-binding: usb: add usb-role-switch property
Date: Fri, 23 Aug 2019 15:57:11 +0800
Message-ID: <1566547041-20804-2-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1566547041-20804-1-git-send-email-chunfeng.yun@mediatek.com>

Add a property usb-role-switch to tell the driver that use
USB Role Switch framework to handle the role switch,
it's useful when the driver has already supported other ways,
such as extcon framework etc.

Cc: Biju Das <biju.das@bp.renesas.com>
Cc: Yu Chen <chenyu56@huawei.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
v7~v10: no changes

v6:
    1. merge into this series patch
    2. add Reviewed-by

(no v4, v5)

v3:
    add property type, modify description suggested by Heikki

v2:
    describe it in terms of h/w functionality suggested by Rob

v1:
    the property is discussed in:
    [v2,2/7] dt-bindings: usb: renesas_usb3: add usb-role-switch property
    https://patchwork.kernel.org/patch/10852497/

    Mediatek and Hisilicon also try to use it:
    [v4,3/6] dt-bindings: usb: mtu3: add properties about USB Role Switch
    https://patchwork.kernel.org/patch/10918385/
    [v4,6/6] usb: mtu3: register a USB Role Switch for dual role mode
    https://patchwork.kernel.org/patch/10918367/

    [v6,10/13] usb: dwc3: Registering a role switch in the DRD code
    https://patchwork.kernel.org/patch/10909981/
---
 Documentation/devicetree/bindings/usb/generic.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt
index 0a74ab8dfdc2..cf5a1ad456e6 100644
--- a/Documentation/devicetree/bindings/usb/generic.txt
+++ b/Documentation/devicetree/bindings/usb/generic.txt
@@ -30,6 +30,10 @@ Optional properties:
 			optional for OTG device.
  - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is
 			optional for OTG device.
+ - usb-role-switch: boolean, indicates that the device is capable of assigning
+			the USB data role (USB host or USB device) for a given
+			USB connector, such as Type-C, Type-B(micro).
+			see connector/usb-connector.txt.
 
 This is an attribute to a USB controller such as:
 
-- 
2.23.0


  reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23  7:57 [PATCH next v10 00/11] add USB GPIO based connection detection driver Chunfeng Yun
2019-08-23  7:57 ` Chunfeng Yun [this message]
2019-08-23  7:57 ` [PATCH next v10 02/11] dt-bindings: connector: add optional properties for Type-B Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 03/11] dt-bindings: usb: add binding for USB GPIO based connection detection driver Chunfeng Yun
2019-08-23 10:07   ` Linus Walleij
2019-08-27 18:31   ` Rob Herring
2019-08-28  1:28     ` Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 04/11] dt-bindings: usb: mtu3: add properties about USB Role Switch Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 05/11] usb: roles: Introduce stubs for the exiting functions in role.h Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 06/11] device connection: Add fwnode_connection_find_match() Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 07/11] usb: roles: Add fwnode_usb_role_switch_get() function Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 08/11] usb: roles: get usb-role-switch from parent Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 09/11] usb: common: create Kconfig file Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 10/11] usb: common: add USB GPIO based connection detection driver Chunfeng Yun
2019-08-23  7:57 ` [PATCH next v10 11/11] usb: mtu3: register a USB Role Switch for dual role mode Chunfeng Yun

Reply instructions:

You may reply publically 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=1566547041-20804-2-git-send-email-chunfeng.yun@mediatek.com \
    --to=chunfeng.yun@mediatek.com \
    --cc=Adam.Thomson.Opensource@diasemi.com \
    --cc=andy.shevchenko@gmail.com \
    --cc=badhri@google.com \
    --cc=biju.das@bp.renesas.com \
    --cc=chenyu56@huawei.com \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=hdegoede@redhat.com \
    --cc=heikki.krogerus@linux.intel.com \
    --cc=jun.li@nxp.com \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=matthias.bgg@gmail.com \
    --cc=min.guo@mediatek.com \
    --cc=nkristam@nvidia.com \
    --cc=robh+dt@kernel.org \
    /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

Linux-USB Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-usb/0 linux-usb/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-usb linux-usb/ https://lore.kernel.org/linux-usb \
		linux-usb@vger.kernel.org
	public-inbox-index linux-usb

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-usb


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git