From: Tao Zhang <quic_taozha@quicinc.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Mike Leach <mike.leach@linaro.org>,
"Leo Yan" <leo.yan@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<coresight@lists.linaro.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Tingwei Zhang <quic_tingweiz@quicinc.com>,
Mao Jinlong <quic_jinlmao@quicinc.com>,
Yuanfang Zhang <quic_yuanfang@quicinc.com>
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: sm8250: Add Coresight support
Date: Fri, 24 Sep 2021 18:04:00 +0800 [thread overview]
Message-ID: <20210924100359.GA10261@taozha-gv.ap.qualcomm.com> (raw)
In-Reply-To: <c9dea7c5-79c9-90a8-ad72-caa4c728a4b0@arm.com>
On Thu, Sep 23, 2021 at 10:36:28AM +0100, Suzuki K Poulose wrote:
> On 23/09/2021 10:24, Tao Zhang wrote:
> >On Tue, Sep 21, 2021 at 05:35:37PM +0100, Suzuki K Poulose wrote:
> >>Hi Tao
> >>
> >>Are there no sinks at all on this platform ? I had this question on the
> >>previous series. How is CoreSight useful on this platform otherwise ?
> >>
> >>On 13/09/2021 07:40, Tao Zhang wrote:
> >ETF/ETR are the sinks on this target. And I have added the ETF to this
> >device tree file. Since the ETR needs SMMU support on this target and
> >SMMU has not been supported for now. I will add the ETR to device tree
> >later if the SMMU is ready for this platform.
>
> Thanks. That is fine. Btw, these sort of additional information could be
> added to the cover letter to give a better picture of what you are trying to
> do and why.
>
Sure. I will update this to the cover letter.
> >>>Add the basic coresight components found on Qualcomm SM8250 Soc. The
> >>>basic coresight components include ETF, ETMs,STM and the related
> >>>funnels.
> >>>
> >>>Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
> >>>---
> >>> arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 442 ++++++++++++++++++++++-
> >>> 1 file changed, 438 insertions(+), 4 deletions(-)
> >>>
> >>>diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> >>>index 8ac96f8e79d4..9c8f87d80afc 100644
> >>>--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> >>>+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> >>>@@ -222,11 +222,445 @@
> >>> regulator-max-microvolt = <1800000>;
> >>> regulator-always-on;
> >>> };
> >>>-};
> >>>-&adsp {
> >>>- status = "okay";
> >>>- firmware-name = "qcom/sm8250/adsp.mbn";
> >>
> >>Unrelated change ? Please keep it separate from the CoreSight changes.
> >>
> >>Suzuki
> >I combined this change and ETM pid change into one seies because the ETM
> >pid change validation needs ETM support. If there is no ETM
> >configuration in the device tree, ETM pid change can not be verified.
> >Do you think it would be better to separate them? Do I need to resubmit
> >to separate them into two separate patches?
>
> No, I am asking about the lines removed above. i.e,
>
> -&adsp {
> - status = "okay";
> - firmware-name = "qcom/sm8250/adsp.mbn";
>
> It doesn't seem to be added back in the patch. So that means, the DT
> lost those lines, without any mention of that in the description of
> the patch. Moreover, the lines do not look like they were anything to
> do with CoreSight. This is why I mentioned they look like "unrelated".
>
> Suzuki
Yes, you are right. This is a mistake. This part of code should not be removed.
I will update the patch and resubmit it.
Best,
Tao
next prev parent reply other threads:[~2021-09-24 10:04 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-13 6:40 [PATCH v2 0/2] Add Coresight support for RB5 board Tao Zhang
2021-09-13 6:40 ` [PATCH v2 1/2] coresight: etm4x: Add ETM PID for Kryo-5XX Tao Zhang
2021-09-21 16:29 ` Suzuki K Poulose
2021-09-13 6:40 ` [PATCH v2 2/2] arm64: dts: qcom: sm8250: Add Coresight support Tao Zhang
2021-09-21 16:35 ` Suzuki K Poulose
2021-09-23 9:24 ` Tao Zhang
2021-09-23 9:36 ` Suzuki K Poulose
2021-09-24 10:04 ` Tao Zhang [this message]
2021-09-21 16:31 ` [PATCH v2 0/2] Add Coresight support for RB5 board Suzuki K Poulose
2021-09-23 9:16 ` Tao Zhang
2021-09-23 9:31 ` Suzuki K Poulose
2021-09-24 10:06 Tao Zhang
2021-09-24 10:06 ` [PATCH v2 2/2] arm64: dts: qcom: sm8250: Add Coresight support Tao Zhang
2021-09-24 13:11 ` Suzuki K Poulose
2021-09-27 2:42 ` Tao Zhang
2022-08-11 9:25 ` Anshuman Khandual
2021-09-27 2:43 Tao Zhang
2021-09-27 4:26 ` Sai Prakash Ranjan
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