Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1686111

Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops

From Stephen Boyd <sboyd@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops
Date 2017-07-13 01:10 +0200
Message-ID <u2yVA-69r-27@gated-at.bofh.it> (permalink)
References <u0bqp-2sh-5@gated-at.bofh.it> <u0bqq-2sh-17@gated-at.bofh.it> <u2yLT-5QV-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On 07/12, Stephen Boyd wrote:
> On 07/06, Vivek Gautam wrote:
> > From: Sricharan R <sricharan@codeaurora.org>
> > 
> > The smmu needs to be functional only when the respective
> > master's using it are active. The device_link feature
> > helps to track such functional dependencies, so that the
> > iommu gets powered when the master device enables itself
> > using pm_runtime. So by adapting the smmu driver for
> > runtime pm, above said dependency can be addressed.
> > 
> > This patch adds the pm runtime/sleep callbacks to the
> > driver and also the functions to parse the smmu clocks
> > from DT and enable them in resume/suspend.
> > 
> > Signed-off-by: Sricharan R <sricharan@codeaurora.org>
> > Signed-off-by: Archit Taneja <architt@codeaurora.org>
> > [vivek: Clock rework to loop over clock names data]
> > Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
> > ---
> 
> General comment, we have a bulk clk API now, but I guess we
> failed to add the clk_bulk_prepare_enable() API that could be
> used here. Perhaps you can add that API and then use it here to
> reduce lines of code.
> 

Bjorn just sent a patch for that API an hour ago.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH V4 0/6] iommu/arm-smmu: Add runtime pm/sleep support Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
  [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
    Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops Stephen Boyd <sboyd@codeaurora.org> - 2017-07-13 01:00 +0200
      Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops Stephen Boyd <sboyd@codeaurora.org> - 2017-07-13 01:10 +0200
        Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-13 06:00 +0200
  [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
    Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Stephen Boyd <sboyd@codeaurora.org> - 2017-07-13 01:00 +0200
      Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-13 07:20 +0200
        Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Sricharan R <sricharan@codeaurora.org> - 2017-07-13 07:40 +0200
          Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-13 14:00 +0200
            Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Marek Szyprowski <m.szyprowski@samsung.com> - 2017-07-13 14:10 +0200
              Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-13 14:20 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Marek Szyprowski <m.szyprowski@samsung.com> - 2017-07-13 14:30 +0200
            Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Sricharan R <sricharan@codeaurora.org> - 2017-07-13 16:00 +0200
              Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-13 17:00 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Will Deacon <will.deacon@arm.com> - 2017-07-14 19:10 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-14 19:50 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Will Deacon <will.deacon@arm.com> - 2017-07-14 20:10 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-14 20:30 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Will Deacon <will.deacon@arm.com> - 2017-07-14 21:10 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-14 21:40 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Sricharan R <sricharan@codeaurora.org> - 2017-07-17 13:50 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Sricharan R <sricharan@codeaurora.org> - 2017-07-17 14:30 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Will Deacon <will.deacon@arm.com> - 2017-07-14 21:40 +0200
                Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-14 21:40 +0200
          Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-13 16:00 +0200
            Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-13 16:10 +0200
        Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Stephen Boyd <sboyd@codeaurora.org> - 2017-07-13 08:50 +0200
          Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Robin Murphy <robin.murphy@arm.com> - 2017-07-13 12:00 +0200
            Re: [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe,  add/remove device Rob Clark <robdclark@gmail.com> - 2017-07-13 14:00 +0200
  [PATCH V4 4/6] iommu/arm-smmu: Add the device_link between masters and smmu Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
    Re: [PATCH V4 4/6] iommu/arm-smmu: Add the device_link between  masters and smmu Stephen Boyd <sboyd@codeaurora.org> - 2017-07-13 01:00 +0200
      Re: [PATCH V4 4/6] iommu/arm-smmu: Add the device_link between  masters and smmu Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-13 06:00 +0200
  [PATCH V4 5/6] iommu/arm-smmu: Add support for MMU40x/500 clocks Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
    Re: [PATCH V4 5/6] iommu/arm-smmu: Add support for MMU40x/500 clocks Rob Herring <robh@kernel.org> - 2017-07-10 05:40 +0200
      Re: [PATCH V4 5/6] iommu/arm-smmu: Add support for MMU40x/500 clocks Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-11 07:20 +0200
  [PATCH V4 6/6] iommu/arm-smmu: Add support for qcom,msm8996-smmu-v2 clocks Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-06 11:40 +0200
    Re: [PATCH V4 6/6] iommu/arm-smmu: Add support for  qcom,msm8996-smmu-v2 clocks Rob Herring <robh@kernel.org> - 2017-07-10 05:50 +0200
      Re: [PATCH V4 6/6] iommu/arm-smmu: Add support for  qcom,msm8996-smmu-v2 clocks Vivek Gautam <vivek.gautam@codeaurora.org> - 2017-07-10 08:50 +0200

csiph-web