linux-kernel - Re: [PATCH 2/8] dt-bindings: serial: Add bindings for nvidia,tegra194-tcu

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Date:   Tue, 22 May 2018 16:15:09 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Mikko Perttunen <mperttunen@...dia.com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <jassisinghbrar@...il.com>,
        <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>
CC:     <araza@...dia.com>, <devicetree@...r.kernel.org>,
        <linux-serial@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/8] dt-bindings: serial: Add bindings for
 nvidia,tegra194-tcu


On 08/05/18 12:43, Mikko Perttunen wrote:
> Add bindings for the Tegra Combined UART device used to talk to the
> UART console on Tegra194 systems.
> 
> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
> ---
>   .../bindings/serial/nvidia,tegra194-tcu.txt        | 35 ++++++++++++++++++++++
>   1 file changed, 35 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt
> 
> diff --git a/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt b/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt
> new file mode 100644
> index 000000000000..86763bc5d74f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt
> @@ -0,0 +1,35 @@
> +NVIDIA Tegra Combined UART (TCU)
> +
> +The TCU is a system for sharing a hardware UART instance among multiple
> +systems withing the Tegra SoC. It is implemented through a mailbox-
> +based protocol where each "virtual UART" has a pair of mailboxes, one
> +for transmitting and one for receiving, that is used to communicate
> +with the hardware implementing the TCU.
> +
> +Required properties:
> +- name : Should be tcu
> +- compatible
> +    Array of strings
> +    One of:
> +    - "nvidia,tegra194-tcu"

Nit. We should say what device the above compatibility is applicable for ...

     - "nvidia,tegra194-tcu": for Tegra194

Cheers
Jon

-- 
nvpublic