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From: Matthias Kaehlcke <mka@chromium.org>
To: Sibi Sankar <sibis@codeaurora.org>
Cc: bjorn.andersson@linaro.org, robh+dt@kernel.org,
	swboyd@chromium.org, ulf.hansson@linaro.org, rjw@rjwysocki.net,
	agross@kernel.org, ohad@wizery.com, mathieu.poirier@linaro.org,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	dianders@chromium.org, rishabhb@codeaurora.org,
	sidgup@codeaurora.org
Subject: Re: [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support
Date: Fri, 25 Jun 2021 15:01:27 -0700	[thread overview]
Message-ID: <YNZSN2wXomiZHsz4@google.com> (raw)
In-Reply-To: <1624560727-6870-12-git-send-email-sibis@codeaurora.org>

On Fri, Jun 25, 2021 at 12:22:05AM +0530, Sibi Sankar wrote:
> The load state resources are expected to follow the life cycle of the
> remote processor it tracks. However, modeling load state resources as
> power-domains result in them getting turned off during system suspend
> and thereby falling out of sync with the remote processors that are still
> on. Fix this by replacing load state resource control through the generic
> qmp message send interface instead.

nit: the above sounds as if this patch does all of that, when it only
removes power domain support. Instead you could start with saying what
the patch actually does (remove power domain support), followed by why
PD support isn't needed anymore (now done by sending QMP messages directly).

> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---
>  drivers/soc/qcom/qcom_aoss.c | 109 ++-----------------------------------------
>  1 file changed, 3 insertions(+), 106 deletions(-)
> 
> diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
> index 998ee7605eb2..f0c3726e8c46 100644
> --- a/drivers/soc/qcom/qcom_aoss.c
> +++ b/drivers/soc/qcom/qcom_aoss.c
>
> ...
>
> @@ -650,13 +550,11 @@ static int qmp_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto err_close_qmp;
>  
> -	ret = qmp_pd_add(qmp);
> -	if (ret)
> -		goto err_remove_qdss_clk;
> -
>  	ret = qmp_cooling_devices_register(qmp);
> -	if (ret)
> +	if (ret) {
>  		dev_err(&pdev->dev, "failed to register aoss cooling devices\n");
> +		goto err_remove_qdss_clk;

This isn't really related with the PD removal, right? I wonder if it was
intentional to have _probe() succeed even when the cooling device
registration failed, since the cooling devices aren't essential.

If it is still desirable to fail the change should be done in a separate
patch, unless it is actually related with removing PD support.

  reply	other threads:[~2021-06-25 22:01 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-24 18:51 [PATCH v3 00/13] Use qmp_send to update co-processor load state Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Sibi Sankar
2021-06-25 21:31   ` Matthias Kaehlcke
2021-06-24 18:51 ` [PATCH v3 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
2021-06-25 21:19   ` Matthias Kaehlcke
2021-06-30 19:51     ` Sibi Sankar
2021-07-14 19:34   ` Rob Herring
2021-07-19 16:30     ` Sibi Sankar
2021-07-19 19:44   ` Bjorn Andersson
2021-06-24 18:51 ` [PATCH v3 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
2021-06-25 21:11   ` Matthias Kaehlcke
2021-06-30 19:31     ` Sibi Sankar
2021-06-24 18:51 ` [PATCH v3 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
2021-06-25 21:35   ` Matthias Kaehlcke
2021-06-30 19:52     ` Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
2021-06-25 22:01   ` Matthias Kaehlcke [this message]
2021-06-30 19:56     ` Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
2021-06-24 18:52 ` [PATCH v3 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
2021-06-25 22:16   ` Matthias Kaehlcke

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