Re: [PATCH 0/7] arm64: dts: qcom: shikra: Add display overlays for EVK boards

[Vishnu Saini <vishnu.saini@oss.qualcomm.com>]

On Thu, Oct 22, 2026 at 10:14:54AM +0200, Konrad Dybcio wrote:
> On 10/21/26 4:21 PM, vishnu.saini@oss.qualcomm.com wrote:
> > Shikra EVK SoC cards (CQS, CQM, and IQS) are mounted on the Lyra carrier
> > card. The DSI0 interface from SoC card is routed to either the 22-pin DSI
> > connector on carrier card named as JDISP1 DSI0 or to the B2B connector
> > named as PDISP1 DSI0, though a MUX which can be selected by a hardware
> > DIP switch. There are multiple daughter cards designed that can be
> > connected to this PDISP1 DSI0 B2B connector.
> > 
> > The below B2B display interfaces are enabled by default in base DTB:
> > - IQS: DSI-to-HDMI using the LT9611UXD daughter card
> > - CQS/CMS: DLC0697 DSI panel using a DLC daughter card
> 
> But if they're daughter cards, they should probably be overlays too?
These daughter cards are connected by default on the respective boards.
Therefore, we keep the default display configuration in the base DT so that users do not need to load an overlay for the default setup.

Users who want to use other display interfaces can remove the default daughter card and load the corresponding overlay.

> Konrad