[PATCH v2 05/16] dt-bindings: display: ti,am65x-dss: Add AM62P DSS

Tomi Valkeinen tomi.valkeinen at ideasonboard.com
Thu May 14 23:56:04 PDT 2026


Hi,

On 15/05/2026 09:52, Krzysztof Kozlowski wrote:
> On Wed, May 13, 2026 at 04:17:27PM +0300, Tomi Valkeinen wrote:
>> TI's AM62P, J722S and AM67A SoCs contain same implementation of the
>> display subsystem (DSS). There are two instances of the DSS (DSS0 and
>> DSS1), each with two video ports (VP) and two video planes.
>> Additionally the SoCs contain two OLDI TXes (OLDI0 and OLDI1), a MIPI
>> DSI TX and a MIPI DPI output path.
>>
>> DSS0 supports:
>> - VP0: OLDI0 in single-link mode, or OLDI0 and OLDI1 in dual-link or
>>    clone mode.
>> - VP1: DPI
>>
>> DSS1 supports:
>> - VP0: OLDI1 in single-link mode, or DPI
>> - VP1: DPI or DSI
>>
>> The DSI is only connected to VP1 of DSS1, but OLDI and DPI are shared
>> between the DSS instances. Thus only a single VP can output to DPI, and
>> a single VP can use an OLDI block. Note that in single-link
>> configuration OLDI0 can be used by DSS0, and at the same time OLDI1 can
>> be used by DSS1.
>>
>> The DSS IP itself is compatible with older SoCs. While we could use
>> "ti,am625-dss" compatible string, we add a new one "ti,am62p-dss" to be
>> on the safe side in case the driver needs to do something special for
>> the dual-DSS case in the future.
>>
>> Original patch by Swamil Jain <s-jain1 at ti.com>
>>
>> Reviewed-by: "Rob Herring (Arm)" <robh at kernel.org>
>> Tested-by: Swamil Jain <s-jain1 at ti.com>
> 
> Same comments.
Interesting, looks like "b4 trailers" applies quotes here. I assume the 
parenthesis makes it do that.

As for the tested-by, yes, it doesn't make sense for bindings. As the 
tested-by was for the series, "b4 trailers" applies it to all patches.

I will manually drop these in v3.

  Tomi




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