linux-kernel - Re: [RFC PATCH v1 3/5] dt-binding: tegra: Add VI and CSI bindings

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Date:   Tue, 28 Jan 2020 13:04:09 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     Helen Koike <helen.koike@...labora.com>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <frankc@...dia.com>, <hverkuil@...all.nl>
CC:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v1 3/5] dt-binding: tegra: Add VI and CSI bindings


On 1/28/20 12:32 PM, Helen Koike wrote:
> External email: Use caution opening links or attachments
>
>
> Hi,
>
> On 1/28/20 4:23 PM, Sowjanya Komatineni wrote:
>> Tegra contains VI controller which can support up to 6 MIPI CSI
>> camera sensors.
>>
>> Each Tegra CSI port from CSI unit can be one-to-one mapper to
>> VI channel and can capture from an external camera sensor or
>> from built-in test pattern generator.
>>
>> This patch adds dt-bindings for Tegra VI and CSI.
>>
>> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
>> ---
>>   .../bindings/display/tegra/nvidia,tegra20-host1x.txt           | 10 +++++++++-
>>   1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
>> index 9999255ac5b6..47cd6532b7d3 100644
>> --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
>> +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
>> @@ -40,7 +40,7 @@ of the following host1x client modules:
>>
>>     Required properties:
>>     - compatible: "nvidia,tegra<chip>-vi"
>> -  - reg: Physical base address and length of the controller's registers.
>> +  - reg: Physical base address and length of the controller registers.
>>     - interrupts: The interrupt outputs from the controller.
>>     - clocks: Must contain one entry, for the module clock.
>>       See ../clocks/clock-bindings.txt for details.
>> @@ -49,6 +49,14 @@ of the following host1x client modules:
>>     - reset-names: Must include the following entries:
>>       - vi
>>
>> +- csi: mipi csi interface to vi
>> +
>> +  Required properties:
>> +  - compatible: "nvidia,tegra<chip>-csi"
>> +  - reg: Physical base address and length of the controller registers.
>> +  - clocks: Must contain entries csi, cilab, cilcd, cile clocks.
>> +    See ../clocks/clock-bindings.txt for details.
>> +
> I think it would be nice to add an example, in the Example section at the end of this file, same as other modules do.
>
> Regards,
> Helen
Thanks Helen. Will add in v2.
>
>>   - epp: encoder pre-processor
>>
>>     Required properties:
>>