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Wed, 10 Jun 2026 00:51:11 -0700 (PDT) X-Received: by 2002:a05:622a:514:b0:517:6b9c:58e4 with SMTP id d75a77b69052e-51795bbf26bmr339153541cf.51.1781077870842; Wed, 10 Jun 2026 00:51:10 -0700 (PDT) Received: from [192.168.0.172] ([49.205.248.156]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-68e64303892sm9496504a12.0.2026.06.10.00.51.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Jun 2026 00:51:09 -0700 (PDT) Message-ID: Date: Wed, 10 Jun 2026 13:20:59 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] dt-bindings: media: qcom,qcm2290-venus: document shikra Iris compatible To: Bryan O'Donoghue , Dikshita Agarwal , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jorge Ramirez-Ortiz , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260609-shikra_vpu-v1-0-3a32bb38b080@oss.qualcomm.com> <5YTsRTMAUGw0it3GAWHhKIh77_Hk823-xRJ4WxzQ-ENpdnC9-ttUvWhJI_CqFEetmFXcRel50GK_o2UMGzwZmg==@protonmail.internalid> <20260609-shikra_vpu-v1-1-3a32bb38b080@oss.qualcomm.com> Content-Language: en-US From: Vikash Garodia In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjEwMDA3MSBTYWx0ZWRfXwKBEW9AEtfYw t28FoXPpUwFZOLGegcjNsdh0wS1AibXXAiGdpvnsufjCwa5OpadSw6S0VRHcFZgvOmXke1UIZJe Q1WnG9sLznwK2w5xFDCBe5W22xk7QX0D9AjqGGnvOi4edsz6Qf7zg1jC1qOkPP4Oo0LJpiUUat1 PqPW50kSOVYrE8QilqpLFUycjTQdProKMNSCd5Hr41SAGN7FDNuwVAwIOuaA5NaPDV8WdjZlT06 sxKRoER99TXH8boaYenUaTEPBg7lAVZ/JC0fzykpjK3fZnaYggVDbtyNXqgRTANSX1vkYTjC5AE AZh30JwWmnpGs7WKZxeu4VdwZohEls+Te6G/gQKpLFDPXKWGDWtwqypAvkXp6S7gkKWBhCa5IOD m7nD/9ag9JqtbHR8whqUO2M1CPX2rsTX6UkY6z11ijC4DxJBLZ3I94HexeSItfdKrr8ogrnBrki tyQGRY6rbwIiZcFy4tg== X-Authority-Analysis: v=2.4 cv=Xce5Co55 c=1 sm=1 tr=0 ts=6a291770 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=tTcoO59C9ckK9alVnXkiOA==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=gdZobvEme04k_sSWYcEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-ORIG-GUID: O0RxNq9z1PNFcT2GzNdDGrHKq7IuH9z9 X-Proofpoint-GUID: O0RxNq9z1PNFcT2GzNdDGrHKq7IuH9z9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-10_02,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 malwarescore=0 impostorscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606100071 On 6/10/2026 2:07 AM, Bryan O'Donoghue wrote: > On 09/06/2026 17:15, Vikash Garodia wrote: >> Document the iris video accelerator used on shikra platforms by adding >> the qcom,shikra-iris compatible. >> >> Although QCM2290 and shikra share the same video hardware and overall >> integration, their SMMU programming differs. QCM2290 exposes separate >> stream IDs for the video hardware and the Xtensa path, requiring two >> explicit IOMMU entries, whereas shikra uses a masked SMR to collapse >> equivalent stream IDs into a single mapping. Due to QCM2290’s SID layout >> and Xtensa isolation requirements, such SMR masking is not applicable on >> QCM2290 platforms. >> Since shikra uses the same video hardware as QCM2290 and shares the same >> programming model and capabilities, it is added as a fallback compatible >> to qcom,qcm2290-venus, with conditional handling to allow either one or >> two IOMMU entries. >> >> Signed-off-by: Vikash Garodia >> --- >>   .../bindings/media/qcom,qcm2290-venus.yaml           | 20 ++++++++++ >> ++++++---- >>   1 file changed, 16 insertions(+), 4 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/media/qcom,qcm2290- >> venus.yaml b/Documentation/devicetree/bindings/media/qcom,qcm2290- >> venus.yaml >> index >> 5977e7d0a71b4fb5681f1c2094439c251366f01f..895533b9756690d075fd7729e3f805c8e72ff0df 100644 >> --- a/Documentation/devicetree/bindings/media/qcom,qcm2290-venus.yaml >> +++ b/Documentation/devicetree/bindings/media/qcom,qcm2290-venus.yaml >> @@ -15,12 +15,27 @@ description: >> >>   allOf: >>     - $ref: qcom,venus-common.yaml# >> +  - if: >> +      properties: >> +        compatible: >> +          contains: >> +            const: qcom,shikra-iris > > Should this be "iris" in a venus yaml ? given the vpu core was first enabled on venus and now it same core on a different SOC being enabled on iris. There are 2 ways to do this 1. Add the compat to existing schema which defines the binding for that core i.e existing patch 2. Write a new schema (or say duplicate it) with ...shikra-iris.yaml, but again, the shikra compat would fallback to "qcom,qcm2290-venus" compat. hence even iris yaml would then need to carry the venus *string*. I followed the first option. Regards, Vikash > >> +    then: >> +      properties: >> +        iommus: >> +          maxItems: 1 >> +    else: >> +      properties: >> +        iommus: >> +          maxItems: 2 >> >>   properties: >>     compatible: >>       oneOf: >>         - items: >> -          - const: qcom,sm6115-venus >> +          - enum: >> +              - qcom,sm6115-venus >> +              - qcom,shikra-iris >>             - const: qcom,qcm2290-venus >>         - const: qcom,qcm2290-venus >> >> @@ -45,9 +60,6 @@ properties: >>         - const: vcodec0_core >>         - const: vcodec0_bus >> >> -  iommus: >> -    maxItems: 2 >> - >>     interconnects: >>       maxItems: 2 >> >> >> -- >> 2.34.1 >> > > --- > bod