Frank Li dc51b4442d dmaengine: fsl-edma: fix eDMAv4 channel allocation issue
The eDMAv4 channel mux has a limitation where certain requests must use
even channels, while others must use odd numbers.

Add two flags (ARGS_EVEN_CH and ARGS_ODD_CH) to reflect this limitation.
The device tree source (dts) files need to be updated accordingly.

This issue was identified by the following commit:
commit a725990557 ("arm64: dts: imx93: Fix the dmas entries order")

Reverting channel orders triggered this problem.

Fixes: 72f5801a4e ("dmaengine: fsl-edma: integrate v3 support")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20231114154824.3617255-2-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-12-21 21:41:06 +05:30
2023-11-12 16:19:07 -08:00

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