linux-kernel - Re: [PATCH] remoteproc: qcom_q6v5_mss: Provide errors for firmware-name parsing

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Date:   Mon, 15 Mar 2021 10:22:24 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Ohad Ben-Cohen <ohad@...ery.com>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remoteproc: qcom_q6v5_mss: Provide errors for
 firmware-name parsing

On Thu, Mar 11, 2021 at 04:26:05PM -0800, Bjorn Andersson wrote:
> Failing to read the "firmware-name" DT property without informing the
> developer is annoying, add some helpful debug prints.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  drivers/remoteproc/qcom_q6v5_mss.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
> index 66106ba25ba3..15abfbba78d2 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -1661,8 +1661,10 @@ static int q6v5_probe(struct platform_device *pdev)
>  	mba_image = desc->hexagon_mba_image;
>  	ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
>  					    0, &mba_image);
> -	if (ret < 0 && ret != -EINVAL)
> +	if (ret < 0 && ret != -EINVAL) {
> +		dev_err(&pdev->dev, "unable to read mba firmware-name\n");
>  		return ret;
> +	}
>  
>  	rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_ops,
>  			    mba_image, sizeof(*qproc));
> @@ -1680,8 +1682,10 @@ static int q6v5_probe(struct platform_device *pdev)
>  	qproc->hexagon_mdt_image = "modem.mdt";
>  	ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
>  					    1, &qproc->hexagon_mdt_image);
> -	if (ret < 0 && ret != -EINVAL)
> +	if (ret < 0 && ret != -EINVAL) {
> +		dev_err(&pdev->dev, "unable to read mpss firmware-name\n");
>  		goto free_rproc;
> +	}

Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>

>  
>  	platform_set_drvdata(pdev, qproc);
>  
> -- 
> 2.29.2
>