linux-kernel - Re: [PATCH 0/6] Add watchdog timer support for Tegra186/194/234 SoCs

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Date:   Mon, 20 Jun 2022 17:45:42 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Kartik <kkartik@...dia.com>, robh+dt@...nel.org,
        krzk+dt@...nel.org, jonathanh@...dia.com, spujar@...dia.com,
        akhilrajeev@...dia.com, rgumasta@...dia.com, pshete@...dia.com,
        vidyas@...dia.com, mperttunen@...dia.com, mkumard@...dia.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: Re: [PATCH 0/6] Add watchdog timer support for Tegra186/194/234 SoCs

On Thu, Apr 14, 2022 at 01:55:32PM +0530, Kartik wrote:
> The native timers IP block found on Tegra SoCs implements a watchdog
> timer that can be used to recover from system hangs. This series of
> patches adds support for watchdog timers available on Tegra186,
> Tegra194 and Tegra234 SOC's.
> 
> To keep the history intact, I added Tegra234 driver change as separate.
> The original patchset is an old one authored by Thierry.
> 
> Kartik (4):
>   dt-bindings: timer: Add Tegra186 & Tegra234 Timer
>   clocksource/drivers/timer-tegra186: Add support for Tegra234 SoC
>   arm64: tegra: Enable native timers on Tegra186
>   arm64: tegra: Enable native timers on Tegra234
> 
> Thierry Reding (2):
>   clocksource: Add Tegra186 timers support
>   arm64: tegra: Enable native timers on Tegra194
> 
>  .../bindings/timer/nvidia,tegra186-timer.yaml | 116 ++++
>  arch/arm64/boot/dts/nvidia/tegra186.dtsi      |   2 +-
>  arch/arm64/boot/dts/nvidia/tegra194.dtsi      |  16 +
>  arch/arm64/boot/dts/nvidia/tegra234.dtsi      |  22 +
>  drivers/clocksource/Kconfig                   |   8 +
>  drivers/clocksource/Makefile                  |   1 +
>  drivers/clocksource/timer-tegra186.c          | 514 ++++++++++++++++++
>  7 files changed, 678 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/timer/nvidia,tegra186-timer.yaml
>  create mode 100644 drivers/clocksource/timer-tegra186.c

Hi Daniel, Thomas,

any comments on this from the clocksource side of things? So far the
only comments have been on the bindings, so if there's nothing else on
the driver bits, Kartik could go ahead and send a v2 so that we can
hopefully get this into v5.20.

Thanks,
Thierry

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