linux-kernel - [PATCH 0/2] usb: dwc3: core: add external vBus supply support for ulpi phy

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Message-ID: <20230215093146.5812-1-piyush.mehta@amd.com>
Date:   Wed, 15 Feb 2023 15:01:44 +0530
From:   Piyush Mehta <piyush.mehta@....com>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <balbi@...nel.org>,
        <Thinh.Nguyen@...opsys.com>
CC:     <linux-usb@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <michal.simek@....com>,
        <siva.durga.prasad.paladugu@....com>, <git@....com>,
        Piyush Mehta <piyush.mehta@....com>
Subject: [PATCH 0/2] usb: dwc3: core: add external vBus supply support for ulpi phy

Some ULPI USB PHY does not support internal VBUS supply, they worked on
with an external supply. To support the external vBus supply for ULPI PHY,
added 'snps,ulpi-ext-vbus-drv' quirk and based on quirk configure the ULPI
PHY in the phy configuration setup.
---
Reference for dwc3 register data-base Link: GUSB2PHYCFG (USB3_XHCI) Register [:ULPIEXTVBUSDRV]
https://www.xilinx.com/htmldocs/registers/ug1087/ug1087-zynq-ultrascale-registers.html
---
Piyush Mehta (2):
  dt-bindings: usb: dwc3: Add snps,ulpi-ext-vbus-drv quirk
  usb: dwc3: core: add external vBus supply support for ulpi phy

 Documentation/devicetree/bindings/usb/snps,dwc3.yaml |  8 ++++++++
 drivers/usb/dwc3/core.c                              | 12 ++++++++++++
 drivers/usb/dwc3/core.h                              |  4 ++++
 3 files changed, 24 insertions(+)

-- 
2.17.1