From: Vivek Gautam <vivek.gautam@codeaurora.org>
To: Yisheng Xie <xieyisheng1@huawei.com>, Tomasz Figa <tfiga@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Will Deacon <will.deacon@arm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"list@263.net:IOMMU DRIVERS" <iommu@lists.linux-foundation.org>,
Joerg Roedel <joro@8bytes.org>,
gaojianbo@hisilicon.com
Subject: Re: [PATCH v9 5/5] iommu/arm-smmu: Add support for qcom,smmu-v2 variant
Date: Wed, 11 Apr 2018 10:45:24 +0530 [thread overview]
Message-ID: <ff1c730f-0009-58e5-cf4a-45fe9ab93d1e@codeaurora.org> (raw)
In-Reply-To: <65a57964-805b-3a38-71a2-0c383af30539@huawei.com>
Hi Yisheng,
On 4/11/2018 6:52 AM, Yisheng Xie wrote:
> Hi Tomasz,
>
> On 2018/4/10 21:14, Tomasz Figa wrote:
>> Hi Yisheng,
>>
>> Sorry, I think we missed your question here.
>>
>> On Wed, Mar 28, 2018 at 3:12 PM Yisheng Xie <xieyisheng1@huawei.com> wrote:
>>
>>> Hi Vivek,
>>> On 2018/3/28 12:37, Vivek Gautam wrote:
>>>> Hi Yisheng
>>>>
>>>>
>>>> On 3/28/2018 6:54 AM, Yisheng Xie wrote:
>>>>> Hi Vivek,
>>>>>
>>>>> On 2018/3/13 16:55, Vivek Gautam wrote:
>>>>>> +- power-domains: Specifiers for power domains required to be
>> powered on for
>>>>>> + the SMMU to operate, as per generic power domain
>> bindings.
>>>>>> +
>>>>> In this patchset, power-domains is not used right? And you just do the
>> clock gating,
>>>>> but not power gating, right?
>>>> We are handling the power-domains too. Please see the example in this
>> binding doc.
>>
>>> I see, but I do not find the point in code of these patchset, do you mean
>> PMIC(e.g mmcc)
>>> will gate the power domain of SMMU(e.g. MDSS_GDSC of mmcc) when PMIC
>> suspend?
>>
>>
>> If respective SoC power domains is registered as a standard genpd PM
>> domain, then the runtime PM subsystem will take care of power domain
>> control at runtime suspend and resume.
>>
> Get it, thanks for your explain, I should have learned about this.
Sorry, i missed your subsequent question, and Tomasz has explained it now.
Let me know if you have further questions.
regards
Vivek
>
> Thanks
> Yisheng
>
>> Best regards,
>> Tomasz
>>
>> .
>>
> --
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next prev parent reply other threads:[~2018-04-11 5:15 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-13 8:55 [PATCH v9 0/5] iommu/arm-smmu: Add runtime pm/sleep support Vivek Gautam
2018-03-13 8:55 ` [PATCH v9 1/5] driver core: Find an existing link between two devices Vivek Gautam
2018-03-13 9:40 ` Rafael J. Wysocki
2018-03-13 9:55 ` Vivek Gautam
2018-03-13 12:49 ` Robin Murphy
2018-03-13 14:39 ` Vivek Gautam
2018-03-13 9:58 ` Vivek Gautam
2018-03-13 10:15 ` Tomasz Figa
2018-03-13 10:34 ` Vivek Gautam
2018-03-13 11:23 ` Tomasz Figa
2018-03-14 11:12 ` Rafael J. Wysocki
2018-03-14 11:50 ` Tomasz Figa
2018-03-14 11:57 ` Rafael J. Wysocki
2018-03-14 12:14 ` Robin Murphy
2018-03-14 12:27 ` Lukas Wunner
2018-03-20 7:56 ` Vivek Gautam
2018-03-14 12:23 ` Lukas Wunner
2018-03-13 8:55 ` [PATCH v9 2/5] iommu/arm-smmu: Add pm_runtime/sleep ops Vivek Gautam
2018-03-13 8:55 ` [PATCH v9 3/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device Vivek Gautam
2018-03-14 17:46 ` Robin Murphy
2018-03-15 7:17 ` Tomasz Figa
2018-03-20 9:49 ` Vivek Gautam
2018-03-13 8:55 ` [PATCH v9 4/5] iommu/arm-smmu: Add the device_link between masters and smmu Vivek Gautam
2018-03-14 17:50 ` Robin Murphy
2018-03-15 6:18 ` Tomasz Figa
2018-03-15 10:44 ` Robin Murphy
2018-03-15 8:57 ` Vivek Gautam
2018-03-15 11:12 ` Robin Murphy
2018-03-13 8:55 ` [PATCH v9 5/5] iommu/arm-smmu: Add support for qcom,smmu-v2 variant Vivek Gautam
[not found] ` <61d30fff-1bf8-d2c1-bbe9-f93de836ae77@huawei.com>
[not found] ` <7d5af071-ef98-8461-3ce9-e84fc0b3956a@codeaurora.org>
2018-03-28 6:11 ` Yisheng Xie
2018-04-10 13:14 ` Tomasz Figa
2018-04-11 1:22 ` Yisheng Xie
2018-04-11 5:15 ` Vivek Gautam [this message]
2018-04-12 1:55 ` Yisheng Xie
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