From: Linus Walleij <linus.walleij@linaro.org>
To: Dipen Patel <dipenp@nvidia.com>
Cc: "thierry.reding@gmail.com" <thierry.reding@gmail.com>,
Jon Hunter <jonathanh@nvidia.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-tegra <linux-tegra@vger.kernel.org>,
"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Kent Gibson <warthog618@gmail.com>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Linux Doc Mailing List <linux-doc@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>
Subject: Re: [RFC v2 06/11] gpiolib: Add HTE support
Date: Mon, 4 Oct 2021 00:01:29 +0200 [thread overview]
Message-ID: <CACRpkdZCLe2cNiJRDzSvUFN+7qzV5kQnfkys4js9pDksYtAT9A@mail.gmail.com> (raw)
In-Reply-To: <20210930232617.6396-7-dipenp@nvidia.com>
On Fri, Oct 1, 2021 at 1:26 AM Dipen Patel <dipenp@nvidia.com> wrote:
> Some GPIO chip can provide hardware timestamp support on its GPIO lines
> , in order to support that additional API needs to be added which
> can talk to both GPIO chip and HTE (hardware timestamping engine)
> subsystem. This patch introduces APIs which gpio consumer can use
> to request hardware assisted timestamping. Below is the list of the APIs
> that are added in gpiolib subsystem.
>
> - gpiod_req_hw_timestamp_ns - Request HTE on specified GPIO line.
> - gpiod_rel_hw_timestamp_ns - Release HTE functionality on GPIO line.
>
> Signed-off-by: Dipen Patel <dipenp@nvidia.com>
> ---
> Changes in v2:
> - removed get timestamp and is timestamp enabled APIs
Pretty straight forward IMO
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Yours,
Linus Walleij
next prev parent reply other threads:[~2021-10-03 22:01 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 23:26 [RFC v2 00/11] Intro to Hardware timestamping engine Dipen Patel
2021-09-30 23:26 ` [RFC v2 01/11] Documentation: Add HTE subsystem guide Dipen Patel
2021-10-02 0:18 ` Randy Dunlap
2021-11-03 0:36 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 02/11] drivers: Add hardware timestamp engine (HTE) Dipen Patel
2021-10-01 23:53 ` Randy Dunlap
2021-11-03 0:37 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 03/11] hte: Add tegra194 HTE kernel provider Dipen Patel
2021-10-01 23:44 ` Randy Dunlap
2021-10-02 0:07 ` Randy Dunlap
2021-11-03 1:15 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 04/11] dt-bindings: Add HTE bindings Dipen Patel
2021-10-03 21:53 ` Linus Walleij
2021-10-08 22:11 ` Rob Herring
2021-11-03 21:43 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 05/11] hte: Add Tegra194 IRQ HTE test driver Dipen Patel
2021-09-30 23:26 ` [RFC v2 06/11] gpiolib: Add HTE support Dipen Patel
2021-10-03 22:01 ` Linus Walleij [this message]
2021-09-30 23:26 ` [RFC v2 07/11] gpio: tegra186: Add HTE in gpio-tegra186 driver Dipen Patel
2021-10-08 22:16 ` Rob Herring
2021-11-03 5:05 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 08/11] gpiolib: cdev: Add hardware timestamp clock type Dipen Patel
2021-10-03 21:59 ` Linus Walleij
2021-10-03 22:09 ` Linus Walleij
2021-09-30 23:26 ` [RFC v2 09/11] tools: gpio: Add new hardware " Dipen Patel
2021-10-03 22:02 ` Linus Walleij
2021-09-30 23:26 ` [RFC v2 10/11] hte: Add tegra GPIO HTE test driver Dipen Patel
2021-10-01 23:47 ` Randy Dunlap
2021-11-03 5:07 ` Dipen Patel
2021-09-30 23:26 ` [RFC v2 11/11] MAINTAINERS: Added HTE Subsystem Dipen Patel
2021-10-02 0:08 ` Randy Dunlap
2021-10-02 4:00 ` Joe Perches
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