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-rw-r--r--dts/Bindings/dma/st,stm32-dma.yaml5
1 files changed, 5 insertions, 0 deletions
diff --git a/dts/Bindings/dma/st,stm32-dma.yaml b/dts/Bindings/dma/st,stm32-dma.yaml
index 0c0ac11ad5..71987878e4 100644
--- a/dts/Bindings/dma/st,stm32-dma.yaml
+++ b/dts/Bindings/dma/st,stm32-dma.yaml
@@ -36,6 +36,11 @@ description: |
0x1: 1/2 full FIFO
0x2: 3/4 full FIFO
0x3: full FIFO
+ -bit 2: DMA direct mode
+ 0x0: FIFO mode with threshold selectable with bit 0-1
+ 0x1: Direct mode: each DMA request immediately initiates a transfer
+ from/to the memory, FIFO is bypassed.
+
maintainers:
- Amelie Delaunay <amelie.delaunay@st.com>