linux-kernel - [PATCH v5 0/2] Add Watchdog Timer driver for Renesas RZ/V2H(P) SoC

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Message-Id: <20240829193831.80768-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Thu, 29 Aug 2024 20:38:29 +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 v5 0/2] Add Watchdog Timer driver for Renesas RZ/V2H(P) SoC

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

Hi All,

This patch series aims to add WDT support to Renesas RZ/V2H(P) SoC.

v4->v5
- Updated commit description for patch 1/2
- Collated RB tags from Geert and Guenter

v3->v4
- Simplified calculation of max_hw_heartbeat_ms
- Turn on the clocks first before reset operation in start & restart
  callbacks
- Added checks in restart callback before turning ON clocks/resets
- Dropped udelay after every ping operation
- Added comments

v2->v3
- Fixed dependency, ARCH_R9A09G011->ARCH_R9A09G057
- Added dependency for PM
- Added delay after de-assert operation as clks are halted temporarily
  after de-assert operation
- Clearing WDTSR register

v1->v2
- Included RB tag for binding patch
- Fixed review comments from Claudiu
- Stopped using PM runtime calls in restart handler
- Dropped rstc deassert from probe

Cheers,
Prabhakar

Lad Prabhakar (2):
  dt-bindings: watchdog: renesas,wdt: Document RZ/V2H(P) SoC
  watchdog: Add Watchdog Timer driver for RZ/V2H(P)

 .../bindings/watchdog/renesas,wdt.yaml        |  17 +-
 drivers/watchdog/Kconfig                      |   9 +
 drivers/watchdog/Makefile                     |   1 +
 drivers/watchdog/rzv2h_wdt.c                  | 272 ++++++++++++++++++
 4 files changed, 298 insertions(+), 1 deletion(-)
 create mode 100644 drivers/watchdog/rzv2h_wdt.c

-- 
2.34.1