linux-kernel - Re: [PATCH 2/2] dmaengine: qcom: bam_dma: Add support for BAM engine v1.7.4

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Date:   Mon, 20 Mar 2023 11:42:04 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        dmaengine@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     agross@...nel.org, linux-kernel@...r.kernel.org,
        andersson@...nel.org, bhupesh.linux@...il.com, vkoul@...nel.org,
        krzysztof.kozlowski@...aro.org, robh+dt@...nel.org,
        vladimir.zapolskiy@...aro.org
Subject: Re: [PATCH 2/2] dmaengine: qcom: bam_dma: Add support for BAM engine
 v1.7.4



On 20.03.2023 08:12, Bhupesh Sharma wrote:
> Qualcomm SoCs SM6115 and  QRB2290 support BAM engine version
> v1.7.4.
> 
> Add the support for the same in driver. Since the reg info of
> this version is similar to version v1.7.0, so reuse the same.
> 
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> ---
>  drivers/dma/qcom/bam_dma.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
> index 1e47d27e1f81..153d189de7d2 100644
> --- a/drivers/dma/qcom/bam_dma.c
> +++ b/drivers/dma/qcom/bam_dma.c
> @@ -1228,6 +1228,7 @@ static const struct of_device_id bam_of_match[] = {
>  	{ .compatible = "qcom,bam-v1.3.0", .data = &bam_v1_3_reg_info },
>  	{ .compatible = "qcom,bam-v1.4.0", .data = &bam_v1_4_reg_info },
>  	{ .compatible = "qcom,bam-v1.7.0", .data = &bam_v1_7_reg_info },
> +	{ .compatible = "qcom,bam-v1.7.4", .data = &bam_v1_7_reg_info },
The compatible is meaningless as of today (it uses the exact same driver
data as v1.7.0), so I'd say going with:

compatible = "qcom,bam-v1.7.4", "qcom,bam-v1.7.0";

is what we want.

Konrad
>  	{}
>  };
>