linux-kernel - [PATCH v2 0/9] Add watchdog driver support for RZ/T2H and RZ/N2H SoCs

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Message-ID: <20250729155915.67758-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue, 29 Jul 2025 16:59:06 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: linux-watchdog@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 0/9] Add watchdog driver support for RZ/T2H and RZ/N2H SoCs

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

Hi All,

This patch series adds watchdog driver support for the Renesas RZ/T2H
(R9A09G077) and RZ/N2H (R9A09G087) SoCs. The necessary device tree
bindings and driver modifications are included.

v1->v2:
- Dropped items from clock-names and instead added maxItems: 1.
- Added reviewed-by from Rob.

Cheers,
Prabhakar

Lad Prabhakar (9):
  dt-bindings: watchdog: renesas,wdt: Add support for RZ/T2H and RZ/N2H
  watchdog: rzv2h_wdt: Obtain clock-divider ranges from OF match data
  watchdog: rzv2h_wdt: Obtain CKS divider via OF data
  watchdog: rzv2h_wdt: Make "oscclk" an optional clock
  watchdog: rzv2h_wdt: Add support for configurable count clock source
  watchdog: rzv2h_wdt: Make reset controller optional
  watchdog: rzv2h: Set min_timeout based on max_hw_heartbeat_ms
  watchdog: rzv2h: Add support for RZ/T2H
  watchdog: rzv2h_wdt: Improve error strings and add newlines

 .../bindings/watchdog/renesas,wdt.yaml        |  36 ++++-
 drivers/watchdog/rzv2h_wdt.c                  | 137 ++++++++++++++++--
 2 files changed, 154 insertions(+), 19 deletions(-)

-- 
2.50.1