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Add USB2PHY Port Reset Control driver for Renesas RZ/V2H(P) SoC

From:  Prabhakar <prabhakar.csengg-AT-gmail.com>
To:  Philipp Zabel <p.zabel-AT-pengutronix.de>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Geert Uytterhoeven <geert+renesas-AT-glider.be>
Subject:  [PATCH v3 0/3] Add USB2PHY Port Reset Control driver for Renesas RZ/V2H(P) SoC
Date:  Tue, 01 Apr 2025 18:14:29 +0100
Message-ID:  <20250401171432.101504-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Cc:  linux-renesas-soc-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, Prabhakar <prabhakar.csengg-AT-gmail.com>, Biju Das <biju.das.jz-AT-bp.renesas.com>, Fabrizio Castro <fabrizio.castro.jz-AT-renesas.com>, Lad Prabhakar <prabhakar.mahadev-lad.rj-AT-bp.renesas.com>
Archive-link:  Article

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Hi All,

This patch series adds support for the USB2PHY Port Reset control driver
for the Renesas RZ/V2H(P) SoC. The changes include documenting the USB2PHY
Port Reset control bindings and adding the driver.

v2->v3
- Dropped Acks from Conor and Fabrizio, due to below changes
- Renamed binding renesas,rzv2h-usb2phy-ctrl.yaml to
  renesas,rzv2h-usb2phy-reset.yaml
- Renamed node name in example to reset-controller
- Renamed function names in reset-rzv2h-usb2phy.c
- Kept the reset line in asserted state during probe
- Added comment for rzv2h_init_vals[]
- Added entry in MAINTAINERS file

v1->v2
- Dropped binding postfix in subject line for patch 1/2
- Moved acquiring the ctrl2 pin in deassert callback
- Updated ctrl_status_bits

Cheers,
Prabhakar

Lad Prabhakar (3):
  dt-bindings: reset: Document RZ/V2H(P) USB2PHY reset driver
  reset: Add USB2PHY port reset driver for Renesas RZ/V2H(P)
  MAINTAINERS: Add entry for Renesas RZ/V2H(P) USB2PHY Port Reset driver

 .../reset/renesas,rzv2h-usb2phy-reset.yaml    |  56 ++++
 MAINTAINERS                                   |   8 +
 drivers/reset/Kconfig                         |   7 +
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-rzv2h-usb2phy.c           | 241 ++++++++++++++++++
 5 files changed, 313 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/renesas,rzv2h-usb2phy-reset.yaml
 create mode 100644 drivers/reset/reset-rzv2h-usb2phy.c

-- 
2.49.0




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