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 <[email protected]>
Reviewed-by: "Rob Herring (Arm)" <[email protected]>
Tested-by: Swamil Jain <[email protected]>
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
