{"id":2230124,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2230124/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260429100028.2739711-2-shengjiu.wang@nxp.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.2/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"<20260429100028.2739711-2-shengjiu.wang@nxp.com>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/20260429100028.2739711-2-shengjiu.wang@nxp.com/","date":"2026-04-29T10:00:23","name":"[v2,1/5] ASoC: fsl-asoc-card: enable dpcm_merged_chan flag for ASRC 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f93bvOomBmLCgogWcULhuGM0rcjXYIYt+eFaYiKeVP2/ZEzUL0XhDhIZvk4b8zlj/euWN83Dm5EFX/jieZGJQXvvY5VwpFzp2veaMq1Y+TEoUNWiexJu24D/CXuSENSkFtYgR3m8CqPcRyTJYskUxF9MO1uGbQFM2FDBsep2MIOTefZnb31FrWI4sfEFKLtfRZmEqZYuwbXj0XGCIFUERPZLRz5fzB4afs7x5RDrm9v8cr6JACE/oSrr4qiK2BucdAEjIhZ7EkcuU0XZePepEyM9NTNRzcJ8oJQ/0DE6PDV7RsVSQfB2wUiUufNNyIfbCwlKPFyVFd/CTA87T1dqPTVK8q6eFLxfNzVgjUX6pGgDs/9zmmzQW/Dxlgv4Mg95w4H9FVq/U3vfs4H2gvlInLojz5TUSQnUqly54vuTH7ldVl7XfiZZ5i8nCs9n/d5DqKRVk3PabSHP9st4v9948gr7b5B89BB8NHzi2I/jCLK5oDFUwaIRceHBpYc3QMZpIOC2Pjq8whfjOLmyWpkUNsSxHxb8odDP5mcPB5TkIYU1Za1o7tH88Z+o86kh6bk0Uop1BTgq+r+12bMZ/M4T8REr1dcdnW2sktc65+ggm5Dq/mWOU7vx6y15M9iCN1cHpZC5AswXWaTzW0ICeCsSl4e4jCn7aBDKStjgNna92GHYOHb8NwKhnOda4jfdVopWe1IzF4y15bJpcUc4MI0lR7tgrEZ/LEzIl9VARUF/rbNOWu1V8WsOjWRP6cEhVqQBugQPsg1y3YPwSqIhasS5BBczCfs8yNLy1529a1ciSlzTAfPa2yIBFoAy79Xy5PDftjG6WRf5t0vGd0xPQqzMQxS2mapomDL/Dv/SG26FtpDcXA6Vg0nVOILbSVMLTms1ulBX/V0c5egfeeAgtjzdiRHJ+cggOKRkzcyzfRyZymNx4UIRCBqdPxVnir7C5MTfbfUfrCAJsYcVjmPpWbkKhb6YUp3RFk0rsBBAzP5ZtGs+4mNKhLQK9xH+ufAQeCmjgNc4Pkdb69epvJgjfBQM+p86HD4srlTdCbho5LmIWHRcOeNDuNzEZgbhPZupeHJkhOcdQyyoeGCQtADot+ioZLlXawKMTGsTlIMojN/UxVt0xx+su4zOEZP7zEVdNzRPshXaxXINRSFIRaRXGZr+XfHg3Kib7E5uKrlvfB2UmVDdzuDa/JMIHSiUoLtVoyBraVgd22LMuA3//e4XZRUQOZcj4yOUVNrBXUZushECtcSil6/GC+k97kZafdd6lKS2KD+ahoK0MrdZQYdT/C07TwMmaSLOIEmkwekw8mNrN1CiHtIqiVuUFLTy7cmidFDiXIgNvvLyNEaaGEl+ZpG4rCGIPWHI/ZDty1U85T4c293ghLxpHSx/ezWfsjw+2ZwNrZY91To9U0J1kY2mieZkIRsUE6PGnmayknFUA4Zft8NnvYPgfWj6jot3oeOdPZWFSEHN359Y9k4Kc0FregTO7ol3/LJTKZb6AL+kZLRXdtqOON+V4xykQ9qTZYaLfHM7Fb1PArxbJWF8gzbKJUc67AxmPLFcQROcnkjLMrHgogs7C11tkaU8302ScfJnX8coLCLtuGTfCFjAljxfox7t0MaJ9fg8dnFkAbKET70gONfjAPNshqUlyvEqBKXW7KpjkdU5LNa5kaiP6/RAUyCpq35BupC/s4H27fy10Ea6lgaysFFGbd7VaqxNNNZbO+JTsfdjqAO4uRVN9kh16DBLCA==","X-OriginatorOrg":"nxp.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n 2aeafa71-6736-46e1-e57a-08dea5d5de56","X-MS-Exchange-CrossTenant-AuthSource":"AM0PR04MB7044.eurprd04.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"29 Apr 2026 09:58:31.3889\n (UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"686ea1d3-bc2b-4c6f-a92c-d99c5c301635","X-MS-Exchange-CrossTenant-MailboxType":"HOSTED","X-MS-Exchange-CrossTenant-UserPrincipalName":"\n WLP2JmDmKOp4K+HjdNXSMFeI1lsc0Er9SllMFjvh+Xqt9nf4CNjm9nWQRHg6SmiCENkd6cuqLA+OvrwDprCY+g==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"PAXPR04MB8269","X-Spam-Status":"No, score=0.8 required=3.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,\n\tSPF_HELO_PASS,T_SPF_PERMERROR autolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"When using ASRC in DPCM mode, the backend DAI (codec) may have channel\nconstraints that differ from the frontend. For example, the ASRC can\nsupport 1-8 channels, but the codec might only support stereo (2 channels).\n\nWithout dpcm_merged_chan, userspace can open the frontend with unsupported\nchannel counts, leading to errors when the backend is configured.\n\nEnable dpcm_merged_chan to merge backend channel constraints to the\nfrontend, ensuring userspace only sees valid channel configurations.\n\nThis fixes issues where applications attempt to use channel counts\nthat the backend codec doesn't support.\n\nSigned-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>\n---\n sound/soc/fsl/fsl-asoc-card.c | 1 +\n 1 file changed, 1 insertion(+)","diff":"diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c\nindex 70a6159430ed..41cd2fc2ea56 100644\n--- a/sound/soc/fsl/fsl-asoc-card.c\n+++ b/sound/soc/fsl/fsl-asoc-card.c\n@@ -989,6 +989,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)\n \n \tif (asrc_pdev) {\n \t\t/* DPCM DAI Links only if ASRC exists */\n+\t\tpriv->dai_link[1].dpcm_merged_chan = 1;\n \t\tpriv->dai_link[1].cpus->of_node = asrc_np;\n \t\tpriv->dai_link[1].platforms->of_node = asrc_np;\n \t\tfor_each_link_codecs((&(priv->dai_link[2])), codec_idx, codec_comp) {\n","prefixes":["v2","1/5"]}