docs: mention support of ARG1555 layer support for DMA2D

Into stm32 related documentation. Signed-off-by: Felipe Neves <[email protected]>
uLipe · Jan 8, 2025 · d664b6c · d664b6c
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diff --git a/docs/details/integration/chip/stm32.rst b/docs/details/integration/chip/stm32.rst
@@ -292,4 +292,8 @@ If ``LV_USE_DRAW_DMA2D_INTERRUPT`` is enabled then you are required to call
 :cpp:expr:`lv_draw_dma2d_transfer_complete_interrupt_handler` whenever the DMA2D
 "transfer complete" global interrupt is received.
 
+DMA2D also makes possible to mix layers that have color format on
+:c:macro:`LV_COLOR_FORMAT_ARGB1555` on top of :c:macro:`LV_COLOR_FORMAT_RGB565`
+layers.
+
 If your STM device has a NeoChrom GPU, you can use the :ref:`Nema GFX renderer <nema_gfx>` instead.
diff --git a/docs/details/integration/driver/display/st_ltdc.rst b/docs/details/integration/driver/display/st_ltdc.rst
@@ -103,6 +103,10 @@ partial buffers in parallel with other LVGL tasks, whether or not OS is
 enabled. If the display is not partial, then there is no need to enable this
 option.
 
+Additionally it is possible to mix layers that have color format on
+:c:macro:`LV_COLOR_FORMAT_ARGB1555` on top of :c:macro:`LV_COLOR_FORMAT_RGB565`
+layers using the DMA2D.
+
 It must not be enabled at the same time as :c:macro:`LV_USE_DRAW_DMA2D`.
 See the :ref:`DMA2D support <dma2d>`.