[v1] Add eDMAv3 support for S32G2/S32G3 SoCs

[PATCH 1/8] dmaengine: fsl-edma: select of_dma_xlate based on the dmamuxs presence

Posted by Larisa Grigore 1 year ago

Select the of_dma_xlate function based on the dmamuxs definition rather
than the FSL_EDMA_DRV_SPLIT_REG flag, which pertains to the eDMA3
layout.
This change is a prerequisite for the S32G platforms, which integrate both
eDMAv3 and DMAMUX.
Existing platforms with FSL_EDMA_DRV_SPLIT_REG will not be impacted, as
they all have dmamuxs set to zero.

Signed-off-by: Larisa Grigore <larisa.grigore@oss.nxp.com>
---
 drivers/dma/fsl-edma-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index 60de1003193a..2a7d19f51287 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -646,7 +646,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
 	}
 
 	ret = of_dma_controller_register(np,
-			drvdata->flags & FSL_EDMA_DRV_SPLIT_REG ? fsl_edma3_xlate : fsl_edma_xlate,
+			drvdata->dmamuxs ? fsl_edma_xlate : fsl_edma3_xlate,
 			fsl_edma);
 	if (ret) {
 		dev_err(&pdev->dev,
-- 
2.47.0

Re: [PATCH 1/8] dmaengine: fsl-edma: select of_dma_xlate based on the dmamuxs presence

Posted by Frank Li 1 year ago

On Mon, Dec 16, 2024 at 09:58:11AM +0200, Larisa Grigore wrote:
> Select the of_dma_xlate function based on the dmamuxs definition rather
> than the FSL_EDMA_DRV_SPLIT_REG flag, which pertains to the eDMA3
> layout.

Nit: Add space line here. Need empty line between paragraphs

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> This change is a prerequisite for the S32G platforms, which integrate both
> eDMAv3 and DMAMUX.

Nit: the same here.

> Existing platforms with FSL_EDMA_DRV_SPLIT_REG will not be impacted, as
> they all have dmamuxs set to zero.
>
> Signed-off-by: Larisa Grigore <larisa.grigore@oss.nxp.com>
> ---
>  dcrivers/dma/fsl-edma-main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
> index 60de1003193a..2a7d19f51287 100644
> --- a/drivers/dma/fsl-edma-main.c
> +++ b/drivers/dma/fsl-edma-main.c
> @@ -646,7 +646,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
>  	}
>
>  	ret = of_dma_controller_register(np,
> -			drvdata->flags & FSL_EDMA_DRV_SPLIT_REG ? fsl_edma3_xlate : fsl_edma_xlate,
> +a			drvdata->dmamuxs ? fsl_edma_xlate : fsl_edma3_xlate,
>  			fsl_edma);
>  	if (ret) {
>  		dev_err(&pdev->dev,
> --
> 2.47.0
>

Re: [PATCH 1/8] dmaengine: fsl-edma: select of_dma_xlate based on the dmamuxs presence

Posted by Larisa Ileana Grigore 1 year ago

On 12/16/2024 6:16 PM, Frank Li wrote:
> On Mon, Dec 16, 2024 at 09:58:11AM +0200, Larisa Grigore wrote:
>> Select the of_dma_xlate function based on the dmamuxs definition rather
>> than the FSL_EDMA_DRV_SPLIT_REG flag, which pertains to the eDMA3
>> layout.
> 
> Nit: Add space line here. Need empty line between paragraphs
> 
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> 
Thank you Frank! Will be fixed in V2.

>> This change is a prerequisite for the S32G platforms, which integrate both
>> eDMAv3 and DMAMUX.
> 
> Nit: the same here.
> 
>> Existing platforms with FSL_EDMA_DRV_SPLIT_REG will not be impacted, as
>> they all have dmamuxs set to zero.
>>
>> Signed-off-by: Larisa Grigore <larisa.grigore@oss.nxp.com>
>> ---
>>   dcrivers/dma/fsl-edma-main.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
>> index 60de1003193a..2a7d19f51287 100644
>> --- a/drivers/dma/fsl-edma-main.c
>> +++ b/drivers/dma/fsl-edma-main.c
>> @@ -646,7 +646,7 @@ static int fsl_edma_probe(struct platform_device *pdev)
>>   	}
>>
>>   	ret = of_dma_controller_register(np,
>> -			drvdata->flags & FSL_EDMA_DRV_SPLIT_REG ? fsl_edma3_xlate : fsl_edma_xlate,
>> +a			drvdata->dmamuxs ? fsl_edma_xlate : fsl_edma3_xlate,
>>   			fsl_edma);
>>   	if (ret) {
>>   		dev_err(&pdev->dev,
>> --
>> 2.47.0
>>

Best regards,
Larisa