linux-kernel - Re: [PATCH v2 10/36] coresight: tpiu: Clean up device specific data

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Date:   Wed, 17 Apr 2019 15:41:43 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Suzuki K Poulose <suzuki.poulose@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        coresight@...ts.linaro.org, mike.leach@...aro.org,
        rjw@...ysocki.net, robert.walker@....com
Subject: Re: [PATCH v2 10/36] coresight: tpiu: Clean up device specific data

On Mon, Apr 15, 2019 at 05:03:53PM +0100, Suzuki K Poulose wrote:
> Switch to using the coresight device instead of the parent
> amba device.
> 
> Cc: Mathieu Poirier <mathieu.poirier@...aro.org>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
> ---
>  drivers/hwtracing/coresight/coresight-tpiu.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
> index 4977467..96af7d5 100644
> --- a/drivers/hwtracing/coresight/coresight-tpiu.c
> +++ b/drivers/hwtracing/coresight/coresight-tpiu.c
> @@ -54,7 +54,6 @@
>   */
>  struct tpiu_drvdata {
>  	void __iomem		*base;
> -	struct device		*dev;

Please cleanup structure documentation.  With that:

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

>  	struct clk		*atclk;
>  	struct coresight_device	*csdev;
>  };
> @@ -74,7 +73,7 @@ static int tpiu_enable(struct coresight_device *csdev, u32 mode, void *__unused)
>  
>  	tpiu_enable_hw(drvdata);
>  
> -	dev_dbg(drvdata->dev, "TPIU enabled\n");
> +	dev_dbg(&csdev->dev, "TPIU enabled\n");
>  	return 0;
>  }
>  
> @@ -100,7 +99,7 @@ static void tpiu_disable(struct coresight_device *csdev)
>  
>  	tpiu_disable_hw(drvdata);
>  
> -	dev_dbg(drvdata->dev, "TPIU disabled\n");
> +	dev_dbg(&csdev->dev, "TPIU disabled\n");
>  }
>  
>  static const struct coresight_ops_sink tpiu_sink_ops = {
> @@ -134,7 +133,6 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
>  	if (!drvdata)
>  		return -ENOMEM;
>  
> -	drvdata->dev = &adev->dev;
>  	drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */
>  	if (!IS_ERR(drvdata->atclk)) {
>  		ret = clk_prepare_enable(drvdata->atclk);
> -- 
> 2.7.4
>