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Wysocki" , Danilo Krummrich , Thierry Reding , Mikko Perttunen , David Airlie , Simona Vetter , Jonathan Hunter Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, driver-core@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Vishnu Reddy X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1776950985; l=1132; i=busanna.reddy@oss.qualcomm.com; s=20260216; h=from:subject:message-id; bh=ebFEmvXGGkqJKD9mFiIVA1LtU6HQ5Bywf5jEMGrP3G0=; b=bQ2hOZeQXviL9nyF3kRsnvZT4zluN72vayk4KkSLYRcfIp5ZJavRUHXeaeh7XDtSU5FxhOQqO 0m/xHMr57rABgvyiSf0X1xDEkWlvlf58cukHzX9Ec8r7jTMd6Tw/pND X-Developer-Key: i=busanna.reddy@oss.qualcomm.com; a=ed25519; pk=9vmy9HahBKVAa+GBFj1yHVbz0ey/ucIs1hrlfx+qtok= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIzMDEzNCBTYWx0ZWRfX2UEPvcuuSUsh wUEvkwZcZL+NbY0DASHgCHL+j3za/2M6KbLtmC7JxdoS+FEFyQ38UizeKMS/BHp8M+F++ItYCME kMH6bbaBLYUrbIPkfJckDSSTgU/3p1DUN4TJb+FDsYSZYW/dtMqLQ2HJFIehkvQsmC0OvRLGjI3 +3/0hH1DKnw7HFjyLdkibEjA3UH4JLIAzKBsg3QzJ43s2yDYAsqWbmnuDUMrnmD2Bs81JBtuVmw ZlMxkLX7W15fDGb2TOY/y6ZCBTi9tL6AOwIN5dUSUeViQffIjQRH4+vWK0at01YQBZbap3cF/uX Jhu2NgT1RyxsrplrB+0kdCNoBQ7ZdM4R+9HYwMdD4dt/usfin7f+TOdqETnDexSUlauVJs4fSOd RJP3RtIbt591g3p6WMptLlKNpGvJIQ7J8jUTlaeG/BQt8go1dH9fUpX03OJPkf6vVcsQrCoaalF bENGpG68HxO/LH9YeHg== X-Proofpoint-ORIG-GUID: 6bBYng3ivThF2Z2J67JcOAyWvbAc1WWj X-Proofpoint-GUID: 6bBYng3ivThF2Z2J67JcOAyWvbAc1WWj X-Authority-Analysis: v=2.4 cv=TJt1jVla c=1 sm=1 tr=0 ts=69ea1f3b cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=LyCF3VY0PmB3I9bQj-wA:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-23_03,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 spamscore=0 priorityscore=1501 phishscore=0 clxscore=1015 malwarescore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604230134 Iris need a firmware device to enable secure PAS (peripheral authentication service) support in case of non-Gunyah. This device requires its own IOMMU context for memory isolation. The generic dma-context-bus provides the infrastructure to create the device and configure its firmware stream ID. Select DMA_CONTEXT_BUS to ensure this bus is available when VIDEO_QCOM_IRIS is enabled. Signed-off-by: Vishnu Reddy --- drivers/media/platform/qcom/iris/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/qcom/iris/Kconfig b/drivers/media/platform/qcom/iris/Kconfig index 3c803a05305a..de1fc4b07ff8 100644 --- a/drivers/media/platform/qcom/iris/Kconfig +++ b/drivers/media/platform/qcom/iris/Kconfig @@ -6,6 +6,7 @@ config VIDEO_QCOM_IRIS select QCOM_MDT_LOADER if ARCH_QCOM select QCOM_SCM select VIDEOBUF2_DMA_CONTIG + select DMA_CONTEXT_BUS help This is a V4L2 driver for Qualcomm iris video accelerator hardware. It accelerates decoding operations on various -- 2.34.1