Message-ID: <cover.1766405010.git.tommaso.merciai.xr@bp.renesas.com>
Date: Mon, 22 Dec 2025 14:43:34 +0100
From: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
To: tomm.merciai@...il.com
Cc: linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Peter Rosin <peda@...ntia.se>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Vinod Koul <vkoul@...nel.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Uwe Kleine-König <ukleinek@...nel.org>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Georgi Djakov <djakov@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...db.de>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-phy@...ts.infradead.org
Subject: [PATCH v6 00/14] Add USB2.0 support for RZ/G3E

Dear All,

This patch series adds USB2.0 support for the Renesas
RZ/G3E (a.k.a R9A09G047) R9A09G047 SoC.

RZ/G3E has USB2.0 IP that is identical to the one's found into
the RZ/V2H SoC (R9A09G057).

Merge strategy, if any:

- patches 1-2/14 can go through the MUX tree
- patches 3-6/14 can go through the Reset tree
- patches 7-13/14 can go through the PHY tree
- patches 14-14/14 can go through the USB tree

Note:
 - Reset driver (reset-rzv2h-usb2phy.c)
   has build dependency on Mux header file
   (reset_rzv2h_usb2phy.h).

Thanks & Regards,
Tommaso

v5->v6:
 - Rebased on top of next-20251219
 - Re-arranged series order per subsystem patches.
 - Patch: 3/14: Collected tag.
 - Patch: 4/14: Fixed commit message.
 - Split from dts patches will send separate series.
 - Added merge strategy in cover letter.

v4->v5:
 - Rebased on top of next-20251127
 - Patch 01/22: Added Reviewed-by tag from Conor Dooley.
 - Patch 06/22: Changed file name to rzv2h-usb-vbenctl.c and Fixed
   Makefile, Kconfig, function names accordingly.
   Changed driver .name to "vbenctl" and fix auxiliary_device_id name.
   Updated commit msg.
 - Patch 07/22: Update mux_name to "vbenctl" to match the driver name.
   Updated commit message.
 - Patch 11/22: Fixed if statement for mux_state error check.

v3->v4:
 - Rebased on top of next-20251121
 - Added patch 01/22 to remove nodename pattern from mux-controller schema.
 - Switch back to v2 implementation for mux controller in patches
   5/22, 15/22, 16/22, 21/22.
 - Improved commit bodies for patches 5/22, 15/22, 16/22, 21/22.
 - Removed mux_chip->dev.of_node not needed in patch 06/22.
 - Collected CDooley tag in patch 09/22.
 - Added missing select MULTIPLEXER into Kconfig in patch 11/22.

v2->v3:
 - Rebased on top of next-20251110 + [1] + [2]
 - Add missing Cc: stable@...r.kernel.org in patch 03/21
 - Patch 03/21: Added missing Cc: stable@...r.kernel.org.
   Improved commit body describing the removal of rzv2h_usbphy_assert_helper()
   from rzv2h_usb2phy_reset_probe().
 - Patch 04/21: Manipulate mux-controller as an internal node.
   Improved commit body.
 - Patch 05/21: The main driver is using now __devm_auxiliary_device_create()
   then update the aux driver accordingly.
 - Patch 06/21: Use __devm_auxiliary_device_create() to create the aux device.
 - Patch 08/21: Improved commit body and mux-states description.
 - Patch 14/21: Manipulate the mux controller as an internal node,
   and update commit body accordingly.
 - Patch 15/21: Manipulate the mux controller as an internal node,
   and update commit body accordingly.
 - Patch 20/21: Manipulate the mux controller as an internal node.

v1->v2:
 - Rebased on top of next-20251103 + [1] + [2]
 - Reworked series to use mux-state for controlling VBUS_SEL
   as suggested by PZabel added also mux bindings documentation
   on phy and rst side.
 - Collected Conor Dooley tags
 - Dropped unnecessary rzv2h_usbphy_assert_helper() function from
   rzv2h_usb2phy_reset_probe()

Tommaso Merciai (14):
  dt-bindings: mux: Remove nodename pattern constraints
  mux: Add driver for Renesas RZ/V2H USB VBENCTL VBUS_SEL mux
  dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells'
    property
  dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/G3E USB2PHY
    reset
  reset: rzv2h-usb2phy: Keep PHY clock enabled for entire device
    lifetime
  reset: rzv2h-usb2phy: Add support for VBUS mux controller registration
  dt-bindings: phy: renesas,usb2-phy: Document USB VBUS regulator
  dt-bindings: phy: renesas,usb2-phy: Document mux-states property
  dt-bindings: phy: renesas,usb2-phy: Document RZ/G3E SoC
  phy: renesas: rcar-gen3-usb2: Factor out VBUS control logic
  phy: renesas: rcar-gen3-usb2: Use devm_pm_runtime_enable()
  phy: renesas: rcar-gen3-usb2: Add regulator for OTG VBUS control
  phy: renesas: rcar-gen3-usb2: Use mux-state for phyrst management
  dt-bindings: usb: renesas,usbhs: Add RZ/G3E SoC support

 .../bindings/mux/mux-controller.yaml          |   6 -
 .../bindings/phy/renesas,usb2-phy.yaml        |  15 +-
 .../reset/renesas,rzv2h-usb2phy-reset.yaml    |   9 +-
 .../bindings/usb/renesas,usbhs.yaml           |   1 +
 drivers/mux/Kconfig                           |  11 +
 drivers/mux/Makefile                          |   2 +
 drivers/mux/rzv2h-usb-vbenctl.c               |  97 +++++++
 drivers/phy/renesas/Kconfig                   |   1 +
 drivers/phy/renesas/phy-rcar-gen3-usb2.c      | 261 ++++++++++++++----
 drivers/reset/Kconfig                         |   1 +
 drivers/reset/reset-rzv2h-usb2phy.c           | 108 +++++---
 include/linux/reset/reset_rzv2h_usb2phy.h     |  11 +
 12 files changed, 420 insertions(+), 103 deletions(-)
 create mode 100644 drivers/mux/rzv2h-usb-vbenctl.c
 create mode 100644 include/linux/reset/reset_rzv2h_usb2phy.h

-- 
2.43.0

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