Hello @vishnuhari93 ,
As far as I know, we do not have a ready to use example that will drive your SPI panel for our STM32MP15.
Please find below the different information that will be useful to setup your wanted result:
ST provides different default images on Yocto that already integrates Qt inside:
- st-example-image-qtwayland (with windows management)
- st-example-image-qt (without windows management // EGLFS)
You can find more information about these images on this article.
Now what about your panel ?
If you are familiar with Yocto, you understand that when we bake the complete image containing the BSP, the filesystem and so on, we also compile the default ST kernel delivered in each release. This kernel has a default configuration for the dispay in the device tree of the platform. For example, in our STM32MP157F-DK2 case, we have the DTS configured to use the Orise Tech OTM8009A panel.
This is not what you want. In your case, you will have to apply your own patch on top of the Kernel that will modify the board DTS in order to remove the default panel and put your own one instead of. As your panel is driven by SPI, the way to add it in the device tree can be different. However, the driver to control your panel seems to already exist, and I saw it in an existing device tree. Maybe you can get inspired by stm32f429-disco.dts that use the same panel as you, declared under &SPI5 node. (I do not say that it will be copy past, this is just to give you a direction).
My personal advice for you would be to begin with the developer package, with a default SD card providing all the BSP for your board, and begin to modify the Kernel device tree to add your panel step by step. Only when this step will be done, I would begin to look at Yocto and the Qt image.
I hope that this information will help you.
Kind regards,
Erwan.
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