linux-kernel - Re: [PATCHv5 5/7] coresight: etm4x: Add ETM PIDs for SDM845 and MSM8996

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Date:   Tue, 29 Jan 2019 09:28:03 +0000
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     saiprakash.ranjan@...eaurora.org, robh+dt@...nel.org,
        mathieu.poirier@...aro.org, mike.leach@...aro.org,
        leo.yan@...aro.org, alexander.shishkin@...ux.intel.com,
        andy.gross@...aro.org, david.brown@...aro.org,
        vivek.gautam@...eaurora.org, jhugo@...eaurora.org,
        dianders@...omium.org, sboyd@...nel.org,
        bjorn.andersson@...aro.org, devicetree@...r.kernel.org,
        mark.rutland@....com, marc.w.gonzalez@...e.fr
Cc:     rnayak@...eaurora.org, sibis@...eaurora.org,
        tingwei@...eaurora.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCHv5 5/7] coresight: etm4x: Add ETM PIDs for SDM845 and
 MSM8996



On 28/01/2019 19:14, Sai Prakash Ranjan wrote:
> Instead of overriding the peripheral id(PID) check in AMBA
> by hardcoding them in DT, add the PIDs to the ETM4x driver.
> Here we use Unique Component Identifier(UCI) for MSM8996
> since the ETM and CPU debug module shares the same PIDs.
> SDM845 does not support CPU debug module.
> 
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
> 
> ---
> This patch depends on UCI support by Mike Leach in below link:
>   https://lore.kernel.org/lkml/20190121233151.13363-2-mike.leach@linaro.org/
> ---
>   drivers/hwtracing/coresight/coresight-etm4x.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
> index fe76b176974a..17731a8ae787 100644
> --- a/drivers/hwtracing/coresight/coresight-etm4x.c
> +++ b/drivers/hwtracing/coresight/coresight-etm4x.c
> @@ -1080,6 +1080,10 @@ static const struct amba_id etm4_ids[] = {
>   	ETM4x_AMBA_ID(0x000bb95a),		/* Cortex-A72 */
>   	ETM4x_AMBA_ID(0x000bb959),		/* Cortex-A73 */
>   	ETM4x_AMBA_ID(0x000bb9da),		/* Cortex-A35 */
> +	ETM4x_AMBA_UCI_ID(0x000f0205),		/* Qualcomm Kryo */
> +	ETM4x_AMBA_UCI_ID(0x000f0211),		/* Qualcomm Kryo */
> +	ETM4x_AMBA_ID(0x000bb802),		/* Qualcomm Kryo 385 Cortex-A55 */
> +	ETM4x_AMBA_ID(0x000bb803),		/* Qualcomm Kryo 385 Cortex-A75 */
>   	{},
>   };
>   

Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>