[PATCH 0/4] dmaengine: fsl-edma: fix eDMAv4 uart dma loop test failure

Frank Li
2023-11-14T15:48:48Z

The commit a725990557e7d ("arm64: dts: imx93: Fix the dmas entries order")
trigger a hidden eDMAv4 hardware limitation.

Some channel require stick to odd number, some require stick to even
number.

This fixes include 3 part.
1. add limitation at eDMA driver.
2. create dt-binding header file to share define between driver and dts
3. add ODD and EVEN requirement for uart driver at dts file.

Frank Li (4):
dmaengine: fsl-edma: fix eDMAv4 channel allocation issue
dt-bindings: dma: fsl-edma: Add fsl-edma.h to prevent hardcoding in
dts
dmaengine: fsl-edma: utilize common dt-binding header file
arm64: dts: imx93: Fix EDMA transfer failure

arch/arm64/boot/dts/freescale/imx93.dtsi | 13 +++++++++----
drivers/dma/fsl-edma-main.c | 17 ++++++++++-------
include/dt-bindings/dma/fsl-edma.h | 21 +++++++++++++++++++++
3 files changed, 40 insertions(+), 11 deletions(-)
create mode 100644 include/dt-bindings/dma/fsl-edma.h

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2.34.1