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feat(mipi_dsi): allow to use dma2d in example when flash is encrypted

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Closes https://github.com/espressif/esp-idf/issues/17708
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Chen Jichang
2026-02-24 11:19:07 +08:00
parent 5c8e8945e3
commit 8a5cdcb2e5
4 changed files with 40 additions and 7 deletions
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docs/en/api-reference/peripherals/lcd/dsi_lcd.rst
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@@ -94,7 +94,7 @@ MIPI DSI Interfaced LCD
.. note::
Due to hardware limitation, if external memory encryption is enabled, DMA2D can only access address and length that are aligned to 16 bytes. Unless you can ensure that your draw buffer's address and length are aligned to 16 bytes, it is not recommended to use DMA2D to draw bitmap.
Due to hardware limitation, if external memory encryption is enabled, DMA2D can only access address and length that are aligned to 16 bytes. You need to ensure that your draw buffer's address and length are aligned to 16 bytes. :example:`peripherals/lcd/mipi_dsi` shows how to use LVGL to constrain the redrawn area to ensure alignment.
If you need more advanced applications, you can add a custom hook for draw bitmap, such as using PPA to implement rotation, scaling, etc.