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From:   Andrzej Hajda <a.hajda@samsung.com>
To:     linux-usb@vger.kernel.org (open list:DESIGNWARE USB3 DRD IP DRIVER)
Cc:     Andrzej Hajda <a.hajda@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), Felipe Balbi <balbi@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Inki Dae <inki.dae@samsung.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org
Subject: [PATCH 0/2] USB: dwc3: get extcon device by OF graph bindings
Date:   Wed, 31 Jan 2018 16:57:16 +0100
Message-id: <20180131155718.5237-1-a.hajda@samsung.com>
CMS-TYPE: 201P
References: <CGME20180131155733eucas1p1ef79b72abaa9f9b4fb38e41b2afa8e24@eucas1p1.samsung.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi,

This small patchset tries to address issue with broken DT extcon property
in case of USB controller - DWC3. It exposes similar problem as in proposed
USB connector bindings[1] - extcon device is required by devices not always
connected directly to extcon device. Here we have:
DWC3 -> USB-PHY -> MUIC -> USB-connector
                               ^
MHL-bridge---------------------^

More details and proposition of generic solution in first patch 

[1]: https://marc.info/?i=20180131134435.12216-1-a.hajda%40samsung.com

Regards
Andrzej


Andrzej Hajda (2):
  USB: dwc3: get extcon device by OF graph bindings
  arm64: dts: exynos: add OF graph between USB-PHY and MUIC

 .../boot/dts/exynos/exynos5433-tm2-common.dtsi     | 18 +++++++++-
 drivers/usb/dwc3/drd.c                             | 41 +++++++++++++++-------
 2 files changed, 45 insertions(+), 14 deletions(-)

-- 
2.15.1