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TDA4VM-Q1: How to let sdk 8.1 support DSI ?

Part Number: TDA4VM-Q1

Tool/software:

Hi, Dear Expert

Because of some reason, customer use SDK 8.1 w/ mass production for a long time, but they have new requirement for DSI support on SDK 8.1

As far as we know, SDK 8.1 do not support DSI, nut SDK 10.1 already does

How to patch SDK 8.1 support DSI?

  

There information what we already know.

cdns-dphy:

cdbddaf4eb510b17f2048d4e739c5812cc1fe4dd

phy: cdns-dphy: Add common module reset for AM62x

089a2a23c12d8940e8b0459ca473b28877c3f301

phy: cdns-dphy: Add band config for dphy tx

0f25c34882ffbd8d1427dc3eca525f1dcc1a5a38

phy: cdns-dphy: Update common module reset logic for newer platforms

8866ccf9941c4adb7f740f5995cb06a562086542

phy: cdns-dphy: Fix common module reset logic

cdns-dsi:

06a0001366ac0d31f3d5ae61b611173d26f22be8

drm/bridge: cdns-dsi: Make sure to to create proper aliases for dt

77b23ebdc25b7e66c1b96170a23e52e983748799

drm/bridge: cdns-dsi: Add support for pre_enable and post_enable control functions.

e9ae93444444ae408e3d70cd26efc9336648eee7

drm/bridge: cdns-dsi: Move to drm/bridge/cadence

057199cb37e56059ad4427fe8c7b51a7b9c236c5

drm/bridge: cdns-dsi: Create a header file

de3c3af242ae34519098deef095637cf138eb509

drm/bridge: cdns-dsi: Add support for J721E wrapper

dbc7158a79c7cf9b279242c45859c667fe8c684b

drm/bridge: cdns-dsi: Fix issue with phy init

Device tree:

   

kernel module probe is fine for cdns_dsi and cdns_dphy,

but cdns_dsi_attach and cdns_dsi_bridge_attach never execution.

What kind of state will trigger  cdns_dsi_attach or cdns_dsi_bridge_attach?

Do you have any suggestion?

Thank You Very Much

Gibbs

  • Hi Gibbs,

    I understand that it will be effort on customer end to port code to newer SDK, and there will be customers that do not want to move since they are in production or nearing production.

    However, in general, our team does not support backporting to old SDK. Our recommendation is to move to the latest SDK, since it has the latest bug fixes and newest features. 8.1 SDK is 3+ years old, so there has been quite some re-architecture of the display related code within Linux. 

    Therefore, if customer wants to continue on the old SDK, support from TI will unfortunately be limited. 

    Regards,

    Takuma