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Date: Tue, 22 Sep 2020 10:21:41 +0530 From: Sibi Sankar <sibis@...eaurora.org> To: Stephen Boyd <swboyd@...omium.org>, "Rafael J. Wysocki" <rafael@...nel.org> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>, Ulf Hansson <ulf.hansson@...aro.org>, Kevin Hilman <khilman@...nel.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Andy Gross <agross@...nel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-arm-msm <linux-arm-msm@...r.kernel.org>, Linux PM <linux-pm@...r.kernel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>, "Nayak, Rajendra" <rnayak@...eaurora.org>, Doug Anderson <dianders@...omium.org>, Matthias Kaehlcke <mka@...omium.org> Subject: Re: [PATCH v2 1/2] PM / Domains: Add GENPD_FLAG_NO_SUSPEND/RESUME flags On 2020-09-22 01:26, Stephen Boyd wrote: > Quoting Rafael J. Wysocki (2020-09-21 09:18:17) >> On Fri, Aug 21, 2020 at 10:49 PM Sibi Sankar <sibis@...eaurora.org> >> wrote: >> > >> > Add GENPD_FLAG_NO_SUSPEND/RESUME flags to instruct genpd to keep the >> > status of the PM domain unaltered during suspend/resume respectively. >> > The flags are aimed at power domains coupled to co-processors which >> > enter low-power modes independent to that of the application processor. >> > >> > Specifically the flags are to be used by the power domains exposed >> > by the AOSS QMP driver linked to modem, adsp, cdsp remoteprocs. These >> > power domains are used to notify the Always on Subsystem (AOSS) that >> > a particular co-processor is up. AOSS uses this information to wait >> > for the co-processors to suspend before starting its sleep sequence. >> > The application processor powers off these power domains only if the >> > co-processor has crashed or powered off and remains unaltered during >> > system suspend/resume. >> > >> > Signed-off-by: Sibi Sankar <sibis@...eaurora.org> >> >> Applied with the Ulf's R-by along with the [2/2] as 5.10 material, >> thanks! >> > > There was a bunch of discussion on this patch series and I thought the > consensus was to not apply these patches and instead implement a custom > qcom specific API that does this instead. https://lore.kernel.org/lkml/20200913034603.GV3715@yoga/ The power domains which were targeted to use the flags will be replaced by custom qcom specific API. So let's not pick up the patch series. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
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