linux-kernel - [PATCH v4 0/4] clocksource/drivers/timer-vt8500: clean up and add watchdog function

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: <20250521-vt8500-timer-updates-v4-0-2d4306a16ae4@gmail.com>
Date: Wed, 21 May 2025 00:01:40 +0400
From: Alexey Charkov <alchark@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Wim Van Sebroeck <wim@...ux-watchdog.org>, 
 Guenter Roeck <linux@...ck-us.net>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-watchdog@...r.kernel.org, 
 Alexey Charkov <alchark@...il.com>
Subject: [PATCH v4 0/4] clocksource/drivers/timer-vt8500: clean up and add
 watchdog function

Add named defines for all registers and bits in timer-vt8500.
Move the system events timer from channel 0 to channel 1 when enough
information is provided by the device tree (i.e. more than one IRQ).
Use channel 0 for the system watchdog

Signed-off-by: Alexey Charkov <alchark@...il.com>
---
Changes in v4:
- Changed the watchdog driver to use auxiliary bus instead of platform
  (thanks Guenter)
- Split out the register definitions into a header file shared between
  the clocksource driver and the watchdog driver
- Replaced -1UL with U32_MAX in watchdog max_heartbeat_ms to make builds
  on non-32bit platforms happier
- Link to v3: https://lore.kernel.org/r/20250515-vt8500-timer-updates-v3-0-2197a1b062bd@gmail.com

Changes in v3:
- Dropped the DTS patch already applied by Krzysztof
- Rebased onto v6.15-rc5 as requested by Daniel
- Split out the watchdog code into a dedicated platform driver, like
  timer-gxp does (thanks Daniel)
- Link to v2: https://lore.kernel.org/r/20250507-vt8500-timer-updates-v2-0-65e5d1b0855e@gmail.com

Changes in v2:
- Included the previously reviewed binding change that is directly related
  to this series as the first patch here (thanks Krzysztof)
- Created a separate config symbol for the watchdog function to let users
  build a kernel without forcing watchdog functionality upon them
  (thanks Krzysztof)
- Link to the previous binding submission: https://lore.kernel.org/all/20250506-via_vt8500_timer_binding-v3-1-88450907503f@gmail.com/
- Link to v1: https://lore.kernel.org/r/20250507-vt8500-timer-updates-v1-0-6b76f7f340a6@gmail.com

---
Alexey Charkov (4):
      dt-bindings: timer: via,vt8500-timer: Convert to YAML
      clocksource/drivers/timer-vt8500: Add defines for magic constants
      clocksource/drivers/timer-vt8500: Prepare for watchdog functionality
      watchdog: Add support for VIA/WonderMedia SoC watchdog functionality

 .../devicetree/bindings/timer/via,vt8500-timer.txt |  15 ---
 .../bindings/timer/via,vt8500-timer.yaml           |  51 +++++++
 MAINTAINERS                                        |   3 +
 drivers/clocksource/Kconfig                        |   1 +
 drivers/clocksource/timer-vt8500.c                 | 148 ++++++++++++++++-----
 drivers/watchdog/Kconfig                           |  15 +++
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/vt8500-wdt.c                      |  80 +++++++++++
 include/linux/vt8500-timer.h                       |  48 +++++++
 9 files changed, 314 insertions(+), 48 deletions(-)
---
base-commit: 088d13246a4672bc03aec664675138e3f5bff68c
change-id: 20250506-vt8500-timer-updates-44a0d22cd720

Best regards,
-- 
Alexey Charkov <alchark@...il.com>