From: Bibek Kumar Patro <bibek.patro@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Clark <robin.clark@oss.qualcomm.com>,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: Re: [PATCH v3 1/6] dt-bindings: iommu: arm,smmu: Document interconnects property
Date: Wed, 8 Jul 2026 20:22:00 +0530 [thread overview]
Message-ID: <4e266d45-ee88-42f8-91da-6253927686ae@oss.qualcomm.com> (raw)
In-Reply-To: <phlk6zsxr7szdadsvgoecf7ewcqjkuaj5aeqmfqa4uvvvvnsmj@57u2pofxewuh>
On 7/7/2026 10:12 PM, Dmitry Baryshkov wrote:
> On Tue, Jul 07, 2026 at 06:06:59PM +0530, Bibek Kumar Patro wrote:
>>
>>
>> On 7/6/2026 11:09 PM, Dmitry Baryshkov wrote:
>>> On Mon, Jul 06, 2026 at 10:26:34PM +0530, Bibek Kumar Patro wrote:
>>>> Some SoC implementations require a bandwidth vote on an interconnect
>>>> path before the SMMU register space is accessible. Add the optional
>>>
>>> Why is it limited only to those SoCs? Is it also applicable to other
>>> Qualcomm SoCs?
>>>
>>
>> I was hoping to keep this series focused on the core infrastructure
>> changes: the bindings, base ICC bandwidth-voting support, and DT
>> interconnect properties for the platforms currently supported on
>> Qualcomm Linux and have been validated so far.
>>
>> The additional targets have not been tested yet, so I'd prefer
>> to add their support in a separate follow-up series once validation
>> is complete, rather than growing this series further. WDYT?
>
> Then it should be a part of the commit message. All SoCs since SDM12345
> need to vote on the interconnect (and then, in the cover letter mention
> that you convert only a few of the SoCs). We possibly can help with
> testing on other platforms.
>
Ack, sounds reasonable.
I'll add the first platform onwards which interconnect voting is
required in commit description.
And update the cover letter to clarify that this series adds
support for the Qualcomm Linux-supported targets available today, and
the list will be expanded in follow-up series as additional platforms
are enabled.
Thanks & regards,
Bibek
>>>> 'interconnects' property to the binding to allow platform DT nodes
>>>> to describe this path.
>>>>
>>>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
>>>> Signed-off-by: Bibek Kumar Patro <bibek.patro@oss.qualcomm.com>
>>>> ---
>>>> .../devicetree/bindings/iommu/arm,smmu.yaml | 27 ++++++++++++++++++++++
>>>> 1 file changed, 27 insertions(+)
>>>>
>
next prev parent reply other threads:[~2026-07-08 14:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 16:56 [PATCH v3 0/6] iommu/arm-smmu: Add interconnect bandwidth voting support Bibek Kumar Patro
2026-07-06 16:56 ` [PATCH v3 1/6] dt-bindings: iommu: arm,smmu: Document interconnects property Bibek Kumar Patro
2026-07-06 17:39 ` Dmitry Baryshkov
2026-07-07 12:36 ` Bibek Kumar Patro
2026-07-07 16:42 ` Dmitry Baryshkov
2026-07-08 14:52 ` Bibek Kumar Patro [this message]
2026-07-08 15:18 ` Bjorn Andersson
2026-07-06 16:56 ` [PATCH v3 2/6] iommu/arm-smmu: Add interconnect bandwidth voting support Bibek Kumar Patro
2026-07-06 17:09 ` sashiko-bot
2026-07-06 17:40 ` Dmitry Baryshkov
2026-07-07 12:43 ` Bibek Kumar Patro
2026-07-06 16:56 ` [PATCH v3 3/6] arm64: dts: qcom: kodiak: Add GEM_NOC interconnect for adreno SMMU Bibek Kumar Patro
2026-07-06 17:42 ` Dmitry Baryshkov
2026-07-07 13:07 ` Bibek Kumar Patro
2026-07-07 16:44 ` Dmitry Baryshkov
2026-07-08 10:01 ` Bibek Kumar Patro
2026-07-08 15:26 ` Bjorn Andersson
2026-07-06 16:56 ` [PATCH v3 4/6] arm64: dts: qcom: lemans: " Bibek Kumar Patro
2026-07-06 16:56 ` [PATCH v3 5/6] arm64: dts: qcom: monaco: " Bibek Kumar Patro
2026-07-06 16:56 ` [PATCH v3 6/6] arm64: dts: qcom: talos: " Bibek Kumar Patro
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