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Thu, 07 May 2026 06:21:34 -0700 (PDT) X-Received: by 2002:a05:6a00:12e3:b0:82f:453e:3863 with SMTP id d2e1a72fcca58-83a5c2b6857mr7738853b3a.22.1778160094005; Thu, 07 May 2026 06:21:34 -0700 (PDT) Received: from [192.168.0.172] ([49.205.248.139]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-83967dbf7d2sm11894566b3a.49.2026.05.07.06.21.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 May 2026 06:21:32 -0700 (PDT) Message-ID: <40c9039f-1f23-4d7d-b6e5-3f1434875f26@oss.qualcomm.com> Date: Thu, 7 May 2026 18:51:25 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 07/16] media: iris: Add platform flag for instantaneous bandwidth voting To: Dmitry Baryshkov , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Dikshita Agarwal References: <20260507-iris-ar50lt-v1-0-d22cccedc3e2@oss.qualcomm.com> <20260507-iris-ar50lt-v1-7-d22cccedc3e2@oss.qualcomm.com> Content-Language: en-US From: Vikash Garodia In-Reply-To: <20260507-iris-ar50lt-v1-7-d22cccedc3e2@oss.qualcomm.com> Content-Type: text/plain; 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This > requirement is due to QSB (Qualcomm System Bus) 128b to > QNS ( Qualcomm Network Switch) 256b conversion at video noc in AR50LT > which is not needed for other IRIS cores. > > In preparation of adding support for AR50LT core, introduce > platform-configurable IB multiplier and enable IB voting for all SoCs. > Existing platforms default to IB == AB, while AR50LT requires 2x peak > bandwidth. > > Signed-off-by: Dikshita Agarwal > Signed-off-by: Dmitry Baryshkov > --- > drivers/media/platform/qcom/iris/iris_platform_common.h | 1 + > drivers/media/platform/qcom/iris/iris_platform_vpu2.c | 2 ++ > drivers/media/platform/qcom/iris/iris_platform_vpu3x.c | 4 ++++ > drivers/media/platform/qcom/iris/iris_resources.c | 2 ++ > 4 files changed, 9 insertions(+) Reviewed-by: Vikash Garodia