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

Frank Li
2023-12-15T05:04:58Z

On Tue, Nov 14, 2023 at 10:48:20AM -0500, Frank Li wrote:
> 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.

@vkoul:
Did you have chance to check this patch?

Frank

>
> 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
>
> --
> 2.34.1
>