From: Rob Herring <robh@kernel.org>
To: Akhil R <akhilrajeev@nvidia.com>
Cc: andy.shevchenko@gmail.com, christian.koenig@amd.com,
digetx@gmail.com, dri-devel@lists.freedesktop.org,
jonathanh@nvidia.com, ldewangan@nvidia.com,
linaro-mm-sig@lists.linaro.org, linux-i2c@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linux-tegra@vger.kernel.org, p.zabel@pengutronix.de,
sumit.semwal@linaro.org, thierry.reding@gmail.com,
devicetree@vger.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: i2c: tegra: Add SMBus feature properties
Date: Wed, 15 Dec 2021 12:37:29 -0600 [thread overview]
Message-ID: <Ybo16aNZ5MBW6XY6@robh.at.kernel.org> (raw)
In-Reply-To: <1639062321-18840-2-git-send-email-akhilrajeev@nvidia.com>
On Thu, Dec 09, 2021 at 08:35:20PM +0530, Akhil R wrote:
> Tegra I2C can use a gpio as an smbus-alert. Document the usage of
> the same.
>
> Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
> ---
> Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
> index 3f2f990..71ee79b 100644
> --- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
> +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
> @@ -70,6 +70,10 @@ Required properties:
> - rx
> - tx
>
> +optional properties:
> +- smbalert-gpio: Must contain an entry for the gpio to be used as smbus alert.
> + It will be used only if optional smbus-alert property is present.
There's already a standard way to do this with interrupts. And GPIOs can
be interrupts usually.
> +
> Example:
>
> i2c@7000c000 {
> --
> 2.7.4
>
>
next prev parent reply other threads:[~2021-12-15 18:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-09 15:05 [PATCH 0/2] Add SMBus features to Tegra I2C Akhil R
2021-12-09 15:05 ` [PATCH 1/2] dt-bindings: i2c: tegra: Add SMBus feature properties Akhil R
2021-12-09 15:30 ` Andy Shevchenko
2021-12-15 18:37 ` Rob Herring [this message]
2021-12-09 15:05 ` [PATCH 2/2] i2c: tegra: Add SMBus block read and SMBus alert functions Akhil R
2021-12-09 15:27 ` Dmitry Osipenko
2021-12-10 9:38 ` Akhil R
2021-12-11 20:07 ` Dmitry Osipenko
2021-12-11 20:12 ` Dmitry Osipenko
2021-12-09 15:30 ` Dmitry Osipenko
2021-12-09 15:33 ` Andy Shevchenko
2021-12-09 15:42 ` Dmitry Osipenko
2021-12-09 15:43 ` Dmitry Osipenko
2021-12-09 16:04 ` [PATCH 0/2] Add SMBus features to Tegra I2C Dmitry Osipenko
2021-12-10 8:56 ` Thierry Reding
2021-12-15 18:42 ` Rob Herring
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