linux-kernel - Re: [PATCH v2 0/7] Watchdog: introduce ARM SBSA watchdog driver

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Message-ID: <CADyBb7tODenKXZTy-FN2J90NjtDNpAdZGOPsxbXVqBgPedTVdA@mail.gmail.com>
Date:	Fri, 22 May 2015 13:08:45 +0800
From:	Fu Wei <fu.wei@...aro.org>
To:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Cc:	Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
	linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	Wei Fu <tekkamanninja@...il.com>,
	G Gregory <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Timur Tabi <timur@...eaurora.org>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Guenter Roeck <linux@...ck-us.net>, vgandhi@...eaurora.org,
	wim@...ana.be, Jon Masters <jcm@...hat.com>,
	Leo Duran <leo.duran@....com>, Jon Corbet <corbet@....net>,
	Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v2 0/7] Watchdog: introduce ARM SBSA watchdog driver

Hi Suravee,

Great thanks for your test, will add your "Tested-by:" in these
patches, if I don't modify them in the next version

On 22 May 2015 at 04:36, Suravee Suthikulpanit
<Suravee.Suthikulpanit@....com> wrote:
> For patch 1,4,5,6,and 7, I have tested this on AMD Seattle platform.
>
> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
>
> Thanks,
>
> Suravee
>
>
> On 5/21/15 03:32, fu.wei@...aro.org wrote:
>>
>> From: Fu Wei <fu.wei@...aro.org>
>>
>> This patchset:
>>
>>      (1)Export "arch_timer_get_rate" in arm_arch_timer.c for the
>>      other drivers, like SBSA watchdog driver
>>
>>      (2)Introduce Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
>>      for FDT info of SBSA Generic Watchdog, and give two examples of
>>      adding SBSA Generic Watchdog device node into the dts files:
>>      foundation-v8.dts and amd-seattle-soc.dtsi.
>>
>>      (3)Introduce "pretimeout" into the watchdog framework, and update
>>      Documentation/watchdog/watchdog-kernel-api.txt to introduce:
>>          (1)the new elements in the watchdog_device and watchdog_ops
>> struct;
>>          (2)the new API "watchdog_init_timeouts".
>>
>>      (4)Introduce ARM SBSA watchdog driver:
>>          a.Use linux kernel watchdog framework;
>>          b.Work with FDT on ARM64;
>>          c.Use "pretimeout" in watchdog framework;
>>          d.In first timeout(WS0), do panic to save system context;
>>          e.Support geting timeout and pretimeout from parameter and FDT
>>            at the driver init stage.
>>
>>      (5)Parse SBSA Generic Watchdog Structure in GTDT table of ACPI,
>>      and create a platform device with that information.
>>      This platform device can be used by This Watchdog driver.
>>
>> This patchset has been tested with watchdog daemon
>> (ACPI/FDT, module/build-in) on the following platforms:
>>      (1)ARM Foundation v8 model
>>      (2)AMD Seattle B0
>>
>> Changelog:
>> v2: Improve watchdog-kernel-api.txt documentation for pretimeout support.
>>      Export "arch_timer_get_rate" in arm_arch_timer.c.
>>      Add watchdog_init_timeouts API for pretimeout support in framework.
>>      Improve suspend and resume foundation in driver
>>      Improve timeout/pretimeout values init code in driver.
>>      Delete unnecessary items of the sbsa_gwdt struct and #define.
>>      Delete all unnecessary debug info in driver.
>>      Fix 64bit division bug.
>>      Use the arch_timer interface to get watchdog clock rate.
>>      Add MODULE_DEVICE_TABLE for platform device id.
>>      Fix typoes.
>>
>> v1: The first version upstream patchset to linux mailing list
>>
>> Fu Wei (7):
>>    clocksource: export "arch_timer_get_rate" for the other drivers
>>    Documentation: add sbsa-gwdt.txt documentation
>>    ARM64: add SBSA Generic Watchdog device node in foundation-v8.dts
>>    ARM64: add SBSA Generic Watchdog device node in amd-seattle-soc.dtsi
>>    Watchdog: introduce "pretimeout" into framework
>>    Watchdog: introduce ARM SBSA watchdog driver
>>    ACPI: import watchdog info of GTDT into platform device
>>
>>   .../devicetree/bindings/watchdog/sbsa-gwdt.txt     |  36 ++
>>   Documentation/watchdog/watchdog-kernel-api.txt     |  62 ++-
>>   arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi       |  11 +
>>   arch/arm64/boot/dts/arm/foundation-v8.dts          |  10 +
>>   arch/arm64/kernel/acpi.c                           | 136 ++++++
>>   drivers/clocksource/arm_arch_timer.c               |   1 +
>>   drivers/watchdog/Kconfig                           |  12 +
>>   drivers/watchdog/Makefile                          |   1 +
>>   drivers/watchdog/sbsa_gwdt.c                       | 476
>> +++++++++++++++++++++
>>   drivers/watchdog/watchdog_core.c                   | 103 +++--
>>   drivers/watchdog/watchdog_dev.c                    |  48 +++
>>   include/linux/watchdog.h                           |  30 +-
>>   12 files changed, 891 insertions(+), 35 deletions(-)
>>   create mode 100644
>> Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
>>   create mode 100644 drivers/watchdog/sbsa_gwdt.c
>>
>



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
Ph: +86 21 61221326(direct)
Ph: +86 186 2020 4684 (mobile)
Room 1512, Regus One Corporate Avenue,Level 15,
One Corporate Avenue,222 Hubin Road,Huangpu District,
Shanghai,China 200021
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