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From: Rob Herring <robh@kernel.org>
To: Sibi Sankar <sibis@codeaurora.org>
Cc: rjw@rjwysocki.net, sidgup@codeaurora.org, ohad@wizery.com,
	agross@kernel.org, linux-kernel@vger.kernel.org,
	bjorn.andersson@linaro.org, mathieu.poirier@linaro.org,
	mka@chromium.org, swboyd@chromium.org,
	devicetree@vger.kernel.org, dianders@chromium.org,
	robh+dt@kernel.org, linux-remoteproc@vger.kernel.org,
	rishabhb@codeaurora.org, linux-arm-msm@vger.kernel.org,
	ulf.hansson@linaro.org
Subject: Re: [PATCH v7 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP property
Date: Tue, 21 Sep 2021 17:06:22 -0500	[thread overview]
Message-ID: <YUpXXjpM4kwH0pTC@robh.at.kernel.org> (raw)
In-Reply-To: <1631800770-371-3-git-send-email-sibis@codeaurora.org>

On Thu, 16 Sep 2021 19:29:19 +0530, Sibi Sankar wrote:
> The load state power-domain, used by the co-processors to notify the
> Always on Subsystem (AOSS) that a particular co-processor is up/down,
> suffers from the side-effect of changing states during suspend/resume.
> However the co-processors enter low-power modes independent to that of
> the application processor and their states are expected to remain
> unaltered across system suspend/resume cycles. To achieve this behavior
> let's drop the load state power-domain and replace them with the qmp
> property for all SoCs supporting low power mode signalling.
> 
> Due to the current broken load state implementation, we can afford the
> binding breakage that ensues and the remoteproc functionality will remain
> the same when using newer kernels with older dtbs.
> 
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> ---
> 
> v7:
>  * Set "qcom,qmp" property to false for unsupported devices. [Rob]
> 
>  .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 54 ++++++++++------------
>  1 file changed, 24 insertions(+), 30 deletions(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

  reply	other threads:[~2021-09-21 22:06 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-16 13:59 [PATCH v7 00/13] Use qmp_send to update co-processor load state Sibi Sankar
2021-09-16 13:59 ` [PATCH v7 01/13] dt-bindings: soc: qcom: aoss: Drop the load state power-domain Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP property Sibi Sankar
2021-09-21 22:06   ` Rob Herring [this message]
2021-09-27 20:54   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
2021-09-27 20:54   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
2021-09-27 20:54   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 05/13] arm64: dts: qcom: sc7180: Use QMP property to control " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
2021-09-27 20:53   ` (subset) " Bjorn Andersson
2021-09-16 13:59 ` [PATCH v7 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar
2021-09-27 20:54   ` (subset) " Bjorn Andersson

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