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From: Bixuan Cui <cuibixuan@huawei.com>
To: <iommu@lists.linux-foundation.org>, <linux-kernel@vger.kernel.org>
Cc: <will@kernel.org>, <gregkh@linuxfoundation.org>,
	<rafael@kernel.org>, <robin.murphy@arm.com>, <joro@8bytes.org>,
	<jean-philippe@linaro.org>, <Jonathan.Cameron@huawei.com>,
	<thunder.leizhen@huawei.com>, <maz@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH -next v4 2/2] iommu/arm-smmu-v3: Add suspend and resume support
Date: Mon, 30 Aug 2021 15:57:08 +0800	[thread overview]
Message-ID: <7087f98c-a59e-00a3-2eae-958c25c1ac3c@huawei.com> (raw)
In-Reply-To: <20210830073858.47084-2-cuibixuan@huawei.com>



On 2021/8/30 15:38, Bixuan Cui wrote:
> Changes in v4:
> * Restore the arm_smmu_suspend() function code to the v2 version(Directly return 0 in it).
Hello,
I looked up the code of smmu.c and the manual of smmu v3. For the suspend is implemented
by the external clock-gating, it is not clear what the SMMUv3 needs to do. Is it the same
as that in smmu.c?
I roll back the code here, and hope to get some advice.

Thanks,
Bixuan Cui

      reply	other threads:[~2021-08-30  7:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30  7:38 [PATCH -next v4 1/2] platform-msi: Save the msg context to desc in platform_msi_write_msg() Bixuan Cui
2021-08-30  7:38 ` [PATCH -next v4 2/2] iommu/arm-smmu-v3: Add suspend and resume support Bixuan Cui
2021-08-30  7:57   ` Bixuan Cui [this message]

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