Sitronix ST7703 panel support on STM32MP157C (Yocto, Linux 5.4 BSP)

[pguarch]

Hello,

I am working with a SOM based on the STM32MP157C and I am trying to bring up a display panel that uses the Sitronix ST7703 MIPI DSI controller.

The operating system has been built with Yocto using the BSP provided by the SOM vendor. This BSP is based on Linux kernel 5.4, which unfortunately does not contain the upstream panel-sitronix-st7703 driver.

Has anyone already backported the ST7703 panel driver to Linux 5.4 for STM32MP1 platforms? Or does anyone have guidance on how to integrate this driver into an older kernel version?

Any hints, patches, or references would be greatly appreciated.

Thank you in advance!

[Olivier GALLIEN]

Hi @pguarch 

Kernel 5.4 is part of DV2.0 which obsolete. 

Who is your SOM provider ?

I recommend to contact it to get up-to-date (DV6.x) release 

Olivier 

[pguarch]

Hi Olivier,

My SOM provider is MYiR and their BSP is still based on Linux kernel 5.4 (Yocto Dunfell).

I understand that DV2.0 is obsolete but at the moment MYiR has not released an updated BSP with DV6.x. That is why I am trying to make the ST7703 panel work with the current 5.4 kernel.

Do you know if there are backported drivers for ST7703 that could be used on kernel 5.4 or if MYiR should be contacted to request support for DV6.x?

[Olivier GALLIEN]

Hi @pguarch 

Best is to contact MYIR for support on DV6.x. 

Olivier