Hi I discovered that commit 664d45dcbace03a879017aa99566592be31f4308 broke LCD framebuffer (at least for ST7789). The issue is with `putarea` call. Originally it was called only when full display redraw was requested but now it is called every time when defined. The core of the issue is that from documentation the buffer passed to the putarea should contain pixels for that area but LCD framebuffer always passes the complete buffer.
I see two possible fixes. Either we call putarea only when full display update is requested or we change the definition of the putarea in such a way that it is driver's resposibility to pick the are from buffer. The first solution is simple and is pretty much revert to the previous state. The second change is kind of what is suggested in the new comment added in 664d45dcbace03a879017aa99566592be31f4308 but no work was done to propagate that to actuall API documentation in 'include/nuttx/lcd/lcd.h' 😡. Thus, what do you think? Revert or propagation of the new behavior? With regards Karel Kočí
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