linux-kernel - Re: [PATCH v5 4/9] coresight: refactor with function of_coresight_get

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Date:   Fri, 31 Mar 2017 10:05:37 +0100
From:   Suzuki K Poulose <Suzuki.Poulose@....com>
To:     Leo Yan <leo.yan@...aro.org>, Jonathan Corbet <corbet@....net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Wei Xu <xuwei5@...ilicon.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Guodong Xu <guodong.xu@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, mike.leach@...aro.org,
        sudeep.holla@....com
Subject: Re: [PATCH v5 4/9] coresight: refactor with function
 of_coresight_get_cpu

On 25/03/17 18:23, Leo Yan wrote:
> This is refactor to add function of_coresight_get_cpu(), so it's used to
> retrieve CPU id for coresight component. Finally can use it as a common
> function for multiple places.
>
> Suggested-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> Signed-off-by: Leo Yan <leo.yan@...aro.org>

Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>
> -		if (found)
> -			break;
> -	}
> -	of_node_put(dn);
> -
> -	/* Affinity to CPU0 if no cpu nodes are found */
> -	pdata->cpu = found ? cpu : 0;
> +	pdata->cpu = of_coresight_get_cpu(node);
>
>  	return pdata;
>  }
> diff --git a/include/linux/coresight.h b/include/linux/coresight.h
> index 2a5982c..bf96678 100644
> --- a/include/linux/coresight.h
> +++ b/include/linux/coresight.h
> @@ -263,9 +263,11 @@ static inline int coresight_timeout(void __iomem *addr, u32 offset,
>  #endif
>
>  #ifdef CONFIG_OF
> +extern int of_coresight_get_cpu(struct device_node *node);
>  extern struct coresight_platform_data *of_get_coresight_platform_data(
>  				struct device *dev, struct device_node *node);
>  #else
> +static inline int of_coresight_get_cpu(struct device_node *node) { return 0; }
>  static inline struct coresight_platform_data *of_get_coresight_platform_data(
>  	struct device *dev, struct device_node *node) { return NULL; }
>  #endif
>