linux-kernel - [PATCH v2 0/3] Remove WDT{0,2,3} support from RZ/V2H(P)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20260203124247.7320-1-fabrizio.castro.jz@renesas.com>
Date: Tue,  3 Feb 2026 12:42:44 +0000
From: Fabrizio Castro <fabrizio.castro.jz@...esas.com>
To: Rob Herring <robh@...nel.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>
Cc: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	linux-watchdog@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-clk@...r.kernel.org,
	Biju Das <biju.das.jz@...renesas.com>
Subject: [PATCH v2 0/3] Remove WDT{0,2,3} support from RZ/V2H(P)

Dear All,

The HW user manual states that the CA55 cores from the Renesas RZ/V2H(P)
SoC are only allowed access to WDT1, however when WDT support was added
it included all the WDT IPs (WDT0, WDT1, WDT2, and WDT3).

Address this by removing the device tree nodes and clock/reset entries
for WDT{0,2,3}.

Cheers,
Fab

v1->v2:
* Removed Fixes tag from patch 1
* Added Conor's Acked-by tag to patch 1

Fabrizio Castro (3):
  dt-bindings: watchdog: renesas,r9a09g057-wdt: Rework example
  arm64: dts: renesas: r9a09g057: Remove wdt{0,2,3} nodes
  clk: renesas: r9a09g057: Remove entries for WDT{0,2,3}

 .../watchdog/renesas,r9a09g057-wdt.yaml       |  8 ++---
 arch/arm64/boot/dts/renesas/r9a09g057.dtsi    | 30 -------------------
 drivers/clk/renesas/r9a09g057-cpg.c           | 15 ----------
 3 files changed, 4 insertions(+), 49 deletions(-)

-- 
2.34.1