linux-kernel - [PATCH 0/3] usb: dwc2: drd: add support for role-switch-default-mode

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Date:   Mon, 6 Dec 2021 16:56:40 +0100
From:   Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To:     <hminas@...opsys.com>, <gregkh@...uxfoundation.org>,
        <robh+dt@...nel.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <devicetree@...r.kernel.org>, <amelie.delaunay@...s.st.com>,
        <fabrice.gasnier@...s.st.com>, <alexandre.torgue@...s.st.com>
Subject: [PATCH 0/3] usb: dwc2: drd: add support for role-switch-default-mode

This series adds support for the role-switch-default-mode binding, to configure
the controller default mode, when the role is USB_ROLE_NONE.

This has been tested on STM32MP15 DK2 board, with:
 &usbotg_hs {
 	phys = <&usbphyc_port1 0>;
 	phy-names = "usb2-phy";
 	usb-role-switch;
 	dr_mode = "peripheral";
 	role-switch-default-mode = "peripheral";
 	status = "okay";
 }

Fabrice Gasnier (3):
  dt-bindings: usb: document role-switch-default-mode property in dwc2
  usb: dwc2: drd: add role-switch-default-node support
  usb: dwc2: drd: restore role and overrides upon resume

 Documentation/devicetree/bindings/usb/dwc2.yaml |  3 ++
 drivers/usb/dwc2/core.h                         |  3 ++
 drivers/usb/dwc2/drd.c                          | 51 ++++++++++++++++++++++++-
 drivers/usb/dwc2/platform.c                     | 10 +++--
 4 files changed, 61 insertions(+), 6 deletions(-)

-- 
2.7.4