linux-kernel - Re: [PATCH v2 4/7] dmaengine: fsl-edma-common: version check for v2 instead

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Date:   Mon, 27 May 2019 11:08:14 +0200
From:   Sascha Hauer <s.hauer@...gutronix.de>
To:     yibin.gong@....com
Cc:     robh@...nel.org, shawnguo@...nel.org, festevam@...il.com,
        mark.rutland@....com, vkoul@...nel.org, dan.j.williams@...el.com,
        linux-imx@....com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH v2 4/7] dmaengine: fsl-edma-common: version check for v2
 instead

On Mon, May 27, 2019 at 04:51:15PM +0800, yibin.gong@....com wrote:
> From: Robin Gong <yibin.gong@....com>
> 
> The next v3 i.mx7ulp edma is based on v1, so change version
> check logic for v2 instead.
> 
> Signed-off-by: Robin Gong <yibin.gong@....com>
> ---
>  drivers/dma/fsl-edma-common.c | 40 ++++++++++++++++++++--------------------
>  1 file changed, 20 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
> index bb24251..45d70d3 100644
> --- a/drivers/dma/fsl-edma-common.c
> +++ b/drivers/dma/fsl-edma-common.c
> @@ -657,26 +657,26 @@ void fsl_edma_setup_regs(struct fsl_edma_engine *edma)
>  	edma->regs.erql = edma->membase + EDMA_ERQ;
>  	edma->regs.eeil = edma->membase + EDMA_EEI;
>  
> -	edma->regs.serq = edma->membase + ((edma->version == v1) ?
> -			EDMA_SERQ : EDMA64_SERQ);
> -	edma->regs.cerq = edma->membase + ((edma->version == v1) ?
> -			EDMA_CERQ : EDMA64_CERQ);
> -	edma->regs.seei = edma->membase + ((edma->version == v1) ?
> -			EDMA_SEEI : EDMA64_SEEI);
> -	edma->regs.ceei = edma->membase + ((edma->version == v1) ?
> -			EDMA_CEEI : EDMA64_CEEI);
> -	edma->regs.cint = edma->membase + ((edma->version == v1) ?
> -			EDMA_CINT : EDMA64_CINT);
> -	edma->regs.cerr = edma->membase + ((edma->version == v1) ?
> -			EDMA_CERR : EDMA64_CERR);
> -	edma->regs.ssrt = edma->membase + ((edma->version == v1) ?
> -			EDMA_SSRT : EDMA64_SSRT);
> -	edma->regs.cdne = edma->membase + ((edma->version == v1) ?
> -			EDMA_CDNE : EDMA64_CDNE);
> -	edma->regs.intl = edma->membase + ((edma->version == v1) ?
> -			EDMA_INTR : EDMA64_INTL);
> -	edma->regs.errl = edma->membase + ((edma->version == v1) ?
> -			EDMA_ERR : EDMA64_ERRL);
> +	edma->regs.serq = edma->membase + ((edma->version == v2) ?
> +			EDMA64_SERQ : EDMA_SERQ);
> +	edma->regs.cerq = edma->membase + ((edma->version == v2) ?
> +			EDMA64_CERQ : EDMA_CERQ);
> +	edma->regs.seei = edma->membase + ((edma->version == v2) ?
> +			EDMA64_SEEI : EDMA_SEEI);
> +	edma->regs.ceei = edma->membase + ((edma->version == v2) ?
> +			EDMA64_CEEI : EDMA_CEEI);
> +	edma->regs.cint = edma->membase + ((edma->version == v2) ?
> +			EDMA64_CINT : EDMA_CINT);
> +	edma->regs.cerr = edma->membase + ((edma->version == v2) ?
> +			EDMA64_CERR : EDMA_CERR);
> +	edma->regs.ssrt = edma->membase + ((edma->version == v2) ?
> +			EDMA64_SSRT : EDMA_SSRT);
> +	edma->regs.cdne = edma->membase + ((edma->version == v2) ?
> +			EDMA64_CDNE : EDMA_CDNE);
> +	edma->regs.intl = edma->membase + ((edma->version == v2) ?
> +			EDMA64_INTL : EDMA_INTR);
> +	edma->regs.errl = edma->membase + ((edma->version == v2) ?
> +			EDMA64_ERRL : EDMA_ERR);

Following to what I have said to 6/7 you can put the register offsets
into that new struct aswell.

Sascha

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