From: Parikshit Pareek <quic_ppareek@quicinc.com>
To: Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
"Joerg Roedel" <joro@8bytes.org>,
Rob Herring <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Manivannan Sadhasivam <mani@kernel.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
Adam Skladowski <a39.skl@gmail.com>,
<linux-arm-msm@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <iommu@lists.linux.dev>,
<devicetree@vger.kernel.org>,
"linux-kernel @ vger . kernel . org Prasanna Kumar"
<quic_kprasan@quicinc.com>,
Shazad Hussain <quic_shazhuss@quicinc.com>,
Parikshit Pareek <quic_ppareek@quicinc.com>
Subject: [PATCH 1/3] dt-bindings: arm-smmu: Add interconnect for qcom SMMUs
Date: Fri, 9 Jun 2023 11:11:40 +0530 [thread overview]
Message-ID: <20230609054141.18938-2-quic_ppareek@quicinc.com> (raw)
In-Reply-To: <20230609054141.18938-1-quic_ppareek@quicinc.com>
There are certain SMMUs on qcom SoCs, which need to set interconnect-
bandwidth, before accessing any MIMO mapped HW registers, and accessing
RAM during page table walk. Hence introduce the due bindings for
interconnects.
Reported-by: Eric Chanudet <echanude@redhat.com>
Signed-off-by: Parikshit Pareek <quic_ppareek@quicinc.com>
---
.../devicetree/bindings/iommu/arm,smmu.yaml | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index ba677d401e24..75e00789d8c2 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -327,6 +327,28 @@ allOf:
- description: interface clock required to access smmu's registers
through the TCU's programming interface.
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ qcom,sa8775p-smmu-500
+ then:
+ properties:
+ interconnects:
+ minItems: 1
+ maxItems: 1
+
+ interconnect-names:
+ minItems: 1
+ items:
+ - const: tbu_mc
+
+ icc_bw:
+ $ref: /schemas/types.yaml#/definitions/int32
+ description:
+ An integer expressing the interconnect bandwidth(MBps) to be set.
+
- if:
properties:
compatible:
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-06-09 5:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-09 5:41 [PATCH 0/3] arm64: dts: qcom: sa8775p: Add interconnect to SMMU Parikshit Pareek
2023-06-09 5:41 ` Parikshit Pareek [this message]
2023-06-09 8:53 ` [PATCH 1/3] dt-bindings: arm-smmu: Add interconnect for qcom SMMUs Konrad Dybcio
2023-06-09 13:23 ` Krzysztof Kozlowski
2023-06-09 5:41 ` [PATCH 2/3] arm64: dts: qcom: sa8775p: Add interconnect to PCIe SMMU Parikshit Pareek
2023-06-09 13:23 ` Krzysztof Kozlowski
2023-06-09 5:52 ` [PATCH 3/3] iommu/arm-smmu-qcom: Add support for the interconnect Parikshit Pareek
2023-06-09 8:56 ` Konrad Dybcio
2023-06-09 8:52 ` [PATCH 0/3] arm64: dts: qcom: sa8775p: Add interconnect to SMMU Konrad Dybcio
2023-06-09 12:56 ` Parikshit Pareek
2023-06-09 14:45 ` Robin Murphy
2023-06-09 14:52 ` Konrad Dybcio
2023-06-09 14:56 ` Dmitry Baryshkov
2023-06-09 15:39 ` Robin Murphy
2023-07-12 13:10 ` Shazad Hussain
2023-06-09 15:07 ` Robin Murphy
2023-06-09 15:22 ` Konrad Dybcio
2023-07-19 15:37 ` Manivannan Sadhasivam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230609054141.18938-2-quic_ppareek@quicinc.com \
--to=quic_ppareek@quicinc.com \
--cc=a39.skl@gmail.com \
--cc=agross@kernel.org \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.baryshkov@linaro.org \
--cc=iommu@lists.linux.dev \
--cc=joro@8bytes.org \
--cc=konrad.dybcio@linaro.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=mani@kernel.org \
--cc=marijn.suijten@somainline.org \
--cc=quic_kprasan@quicinc.com \
--cc=quic_shazhuss@quicinc.com \
--cc=robh+dt@kernel.org \
--cc=robin.murphy@arm.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox