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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 56vOX3DC2x9arLyxil3HOyqatkFh6CxE5g+H9fmhEESXA5EdLBbVFDctQH/lthCf1nVEVkAeZyMbT/PWrxBUb3BpHM7P4E8BBq9BneV7qzuQBiz4C6qJW5K9shrxhVqb+fiPxafALxGvv3hBjDkPDxqpLwlfZ07lwNbHL3D2OAW+wUpBUBy0cgDLfD4/0M8ODgAisK1zY6MaH2I5Us7UgAO9Nsscdct4HsDo8+R2TmkSpQhgG+r6QzE7HQyg8OdbgNP1NZhnEzfzwUwQFqPYnj9LqWkVXYevKb0aJYkmROe/5CxCN58+GJJ/xJu6Mm5//hdJksw//R+JTn/do1E8wCXoP+Tj13SFld+NBvddJMF5m4xTTIKYAyYU66T4EyEHa5N45TPOA4e6O56ix/G7pRQJc7/MikBl+9Nqk6wl1SsmOp3O9vf/0CjXZva6MocK X-Exchange-RoutingPolicyChecked: bYaDZZAogLYpMN4T4ZT4tZwLw2uxzomQGhqVjZnrXHBsD+WTvhLFOzYG2Zx2NB3o3/CXoIFbul8VrFmb3fAirybRh4zQg66G8kIyCvzVMBJiGwKnw0ghbRjTazXKJNSTNtU1DMEvAPQRbHh3Y4M6z7ajSDHstuEDGyvERnfRH59Qn8lnMo68X14ZUoVhfXcOb5QBj0aKv5x1sPRsugbry3IyVoLXA1tduw+l7hbI5K73KYw5rWCeH7IGKaMw/NpxGhoxEJ7cgNCSTFRotCqrWVbX0vHkOVw9lF6qOncPYMw/C/8BN2s8qR1BSHCMBmvs1FwbB4f3kd8Gj3K1Wyvn8A== X-OriginatorOrg: opensource.cirrus.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2026 13:53:27.3099 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 26773fbc-eddc-4131-5f90-08dee98af014 X-MS-Exchange-CrossTenant-Id: bec09025-e5bc-40d1-a355-8e955c307de8 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=bec09025-e5bc-40d1-a355-8e955c307de8;Ip=[84.19.233.75];Helo=[edirelay1.ad.cirrus.com] X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TreatMessagesAsInternal-SN1PEPF00036F3C.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR19MB8672 X-Proofpoint-ORIG-GUID: vnZXAEC2-hM9evA9KWRYL4D1P8MNzQ8V X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI0MDEyNSBTYWx0ZWRfX1uFLBd7Sb2Sh uYpfBCjHzT2L6GI/bDD8ojj7YqyKGStD6sqE3fYsmIGYn0h6oh+tz/IQ2tjm5p3FpI1+GlXnMlN StA1I8LIxkqyQ5MlSOOXLaH0pwsYkDw= X-Proofpoint-GUID: vnZXAEC2-hM9evA9KWRYL4D1P8MNzQ8V X-Authority-Analysis: v=2.4 cv=BdjoFLt2 c=1 sm=1 tr=0 ts=6a636e5f cx=c_pps a=F8yC87VG0lzwhDI2wa7IUg==:117 a=h1hSm8JtM9GN1ddwPAif2w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s63m1ICgrNkA:10 a=RWc_ulEos4gA:10 a=VkNPw1HP01LnGYTKEx00:22 a=iX4cTi3TZMoOKdANLEfx:22 a=KfkQE9S9VqCBgivYGm0O:22 a=BbeC27L_e3XEdJxTvgcA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI0MDEyNSBTYWx0ZWRfXzEkjFurIT3IP TdrsPBjZ0c4NLK7RBx0S5Jai0xOZLaI8mSpr/beAhCBeuvrOUl/AGAdweK16DrGHBOGUy1vrHka zDSZb1VlsDG2c0PsDV3/L/O1DgF4UWCys9Rc0rWyMoDKcTI9c3soRjY2DRHjrXBK2xjP11zZysy llk2SAqHFo4/aiPbhHenVc2zltgrrIOsoIntRmH2Xu4ldv4yovnm2yEEpwvAx20uA3HwyXyg2LD kD1OessPAOHYPzC+LeKuNmuUoMeLH47v7PIrMx380H69MyE3x+VGPI4f4iASFvsAWdZEOb5RUFD hPdOUsaFMWq6C8pY80bOWdYASqeC9iq/lG1ggagMxDDqOaa460XSRr0ee1PoAEkfyhqqzE74Oyt bqKXxXVezU+gL69LAfBBPsJ2EzkkqvdwEESIxdJ1NLFgjPgfzCu2h9PUtdqo3fMgwZyCMAo7p6D YLsRFczALADBa3iKS0A== X-Proofpoint-Spam-Reason: safe On Fri, Jul 24, 2026 at 02:14:50PM +0100, Charles Keepax wrote: > On Thu, Jul 23, 2026 at 12:42:11AM +0100, Srinivas Kandagatla wrote: > > For a capture stream the DAI is the Output Terminal so > > sdca_asoc_hw_params() only programs the OT itself: cluster, clock > > and Usage. The upstream Input Terminals that actually source the > > audio never get their Usage, ClusterIndex or clock programmed, so > > the power domain comes up but no samples are produced. > > > > Walk the source graph from the OT and program every Input Terminal > > reachable through it. > > What was the thinking with respect to the units in the middle? > It's not clear to me things are quite as simple as we can copy the > cluster from the output terminal to the input terminal. Various > entities in the middle could change the cluster, such as CRUs, > MPFUs, UDMPUs. Also possibly SUs to consider too, since they > may change which ITs are actually connected at that point in time, > although potentially an argument to be made that programming the > unconnected ones would have no ill effects I guess. > > Any thoughts as well on the propogation of the clock and usage. > Its a little less clear to me from the spec that they are even > intended to propogate in this fashion, although it does seem > fairly logical to me. Although actually maybe 4.4.5.2? That does seem to suggest the clock should progogate sensibly. Thanks, Charles