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From: Joey Lu <a0987203069@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Jacky Huang <ychuang3@nuvoton.com>,
	Shan-Chun Hung <schung@nuvoton.com>,
	Hui-Ping Chen <hpchen0nvt@gmail.com>, Joey Lu <yclu4@nuvoton.com>,
	linux-phy@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Joey Lu <a0987203069@gmail.com>
Subject: [PATCH v4 0/3] phy: nuvoton: extend MA35D1 USB2 PHY driver for dual-port OTG support
Date: Mon, 20 Jul 2026 18:22:19 +0800	[thread overview]
Message-ID: <20260720102222.251179-1-a0987203069@gmail.com> (raw)

The MA35D1 SoC has two USB PHY ports managed by a shared hardware block:

  - PHY0 (USB0): OTG port shared between the DWC2 gadget controller and
    the EHCI0/OHCI0 host controllers.  A hardware mux automatically routes
    USB0 signals to the correct controller based on the USB ID pin state.

  - PHY1 (USB1): dedicated host-only port for EHCI1/OHCI1.

This series extends the existing phy-ma35d1-usb2.c driver and its binding
to cover both ports and add OTG role-switch support, while keeping full
backward compatibility with existing device trees.

Changes since v3:

  - dt-bindings: add nuvoton,rcalcode = <7 7> example to illustrate the
    optional resistor calibration property; revert redundant clock example
    change (back to USBD_GATE as in the original binding).

  - driver: handle -ENODEV from usb_role_switch_register() gracefully so
    that probe succeeds when CONFIG_USB_ROLE_SWITCH is not enabled.

Joey Lu (3):
  dt-bindings: phy: nuvoton,ma35d1-usb2-phy: extend for dual-port and
    OTG
  arm64: dts: nuvoton: ma35d1: add USB controllers and dual-port PHY
    node
  phy: nuvoton: phy-ma35d1-usb2: extend to dual-port with OTG support

 .../bindings/phy/nuvoton,ma35d1-usb2-phy.yaml |  44 ++-
 .../boot/dts/nuvoton/ma35d1-iot-512m.dts      |  36 +++
 .../boot/dts/nuvoton/ma35d1-som-256m.dts      |  36 +++
 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi       |  65 ++++
 drivers/phy/nuvoton/phy-ma35d1-usb2.c         | 284 +++++++++++++-----
 5 files changed, 389 insertions(+), 76 deletions(-)

base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
-- 
2.43.0


WARNING: multiple messages have this Message-ID (diff)
From: Joey Lu <a0987203069@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Jacky Huang <ychuang3@nuvoton.com>,
	Shan-Chun Hung <schung@nuvoton.com>,
	Hui-Ping Chen <hpchen0nvt@gmail.com>, Joey Lu <yclu4@nuvoton.com>,
	linux-phy@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Joey Lu <a0987203069@gmail.com>
Subject: [PATCH v4 0/3] phy: nuvoton: extend MA35D1 USB2 PHY driver for dual-port OTG support
Date: Mon, 20 Jul 2026 18:22:19 +0800	[thread overview]
Message-ID: <20260720102222.251179-1-a0987203069@gmail.com> (raw)

The MA35D1 SoC has two USB PHY ports managed by a shared hardware block:

  - PHY0 (USB0): OTG port shared between the DWC2 gadget controller and
    the EHCI0/OHCI0 host controllers.  A hardware mux automatically routes
    USB0 signals to the correct controller based on the USB ID pin state.

  - PHY1 (USB1): dedicated host-only port for EHCI1/OHCI1.

This series extends the existing phy-ma35d1-usb2.c driver and its binding
to cover both ports and add OTG role-switch support, while keeping full
backward compatibility with existing device trees.

Changes since v3:

  - dt-bindings: add nuvoton,rcalcode = <7 7> example to illustrate the
    optional resistor calibration property; revert redundant clock example
    change (back to USBD_GATE as in the original binding).

  - driver: handle -ENODEV from usb_role_switch_register() gracefully so
    that probe succeeds when CONFIG_USB_ROLE_SWITCH is not enabled.

Joey Lu (3):
  dt-bindings: phy: nuvoton,ma35d1-usb2-phy: extend for dual-port and
    OTG
  arm64: dts: nuvoton: ma35d1: add USB controllers and dual-port PHY
    node
  phy: nuvoton: phy-ma35d1-usb2: extend to dual-port with OTG support

 .../bindings/phy/nuvoton,ma35d1-usb2-phy.yaml |  44 ++-
 .../boot/dts/nuvoton/ma35d1-iot-512m.dts      |  36 +++
 .../boot/dts/nuvoton/ma35d1-som-256m.dts      |  36 +++
 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi       |  65 ++++
 drivers/phy/nuvoton/phy-ma35d1-usb2.c         | 284 +++++++++++++-----
 5 files changed, 389 insertions(+), 76 deletions(-)

base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
-- 
2.43.0


-- 
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy

             reply	other threads:[~2026-07-20 10:22 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-20 10:22 Joey Lu [this message]
2026-07-20 10:22 ` [PATCH v4 0/3] phy: nuvoton: extend MA35D1 USB2 PHY driver for dual-port OTG support Joey Lu
2026-07-20 10:22 ` [PATCH v4 1/3] dt-bindings: phy: nuvoton,ma35d1-usb2-phy: extend for dual-port and OTG Joey Lu
2026-07-20 10:22   ` Joey Lu
2026-07-20 10:28   ` sashiko-bot
2026-07-20 10:28     ` sashiko-bot
2026-07-20 10:22 ` [PATCH v4 2/3] arm64: dts: nuvoton: ma35d1: add USB controllers and dual-port PHY node Joey Lu
2026-07-20 10:22   ` Joey Lu
2026-07-20 10:32   ` sashiko-bot
2026-07-20 10:32     ` sashiko-bot
2026-07-20 10:22 ` [PATCH v4 3/3] phy: nuvoton: phy-ma35d1-usb2: extend to dual-port with OTG support Joey Lu
2026-07-20 10:22   ` Joey Lu
2026-07-20 10:37   ` sashiko-bot
2026-07-20 10:37     ` sashiko-bot

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