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X-OriginatorOrg: opensource.cirrus.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2026 12:49:13.4302 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 333fb956-8de5-4cb2-b426-08de58eb7b04 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-SJ1PEPF000023CC.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR19MB5917 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIxMDEwOCBTYWx0ZWRfX2FWfp6iC5zVD niE2H3I7fxpHdPq7MyGz8uv5uC0hut1aqi8wsjbMMxN82xfJgLhvg2geZbda3w3ekb3SdSmXDoI BOp/xSJqJCqTr7KdTgC0wmlBwHGF5z5OCQNOyUndj/kQ8Tpn4lJ1GqTcNvR36S9L646MOld5Tu4 cMRVNXjF/0dyFX/X46DfcXHG0m1MgScREePwXp8+pOpdi2OM1Xxj0lpoq+IAcuwIw/r4Apx29DY n/iMGbNE5jH+NUw0KSARycW5TAtwpRCYjfI9N2KCilMZYpImp7/xhXEBiL9bN65h2gzKoqaQyFL mxmRRlGGxMURXJp25EviOuxKNPej88R4G5j3ZM2snIdf1+PkesxKvLVwjJISZfZHuoKGLwr+nZ6 4O0Xwhnm41LfRJv51qdvkGyVURFvtzbNltUW5D5RHZKByxZiiTGkGjsMcnscUJY2K/m7XzJlp9Q Hx5BrMcnjJdgcRqFfZw== X-Proofpoint-GUID: 4ChHCER5Lzov-ghY0glkr8HLJgNRjWEv X-Authority-Analysis: v=2.4 cv=GrRPO01C c=1 sm=1 tr=0 ts=6970cb4e cx=c_pps a=3l++41Tsbfu3Vy6U+n14cA==:117 a=h1hSm8JtM9GN1ddwPAif2w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s63m1ICgrNkA:10 a=RWc_ulEos4gA:10 a=VkNPw1HP01LnGYTKEx00:22 a=ckdpqryvvx8714JBsRoA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: 4ChHCER5Lzov-ghY0glkr8HLJgNRjWEv X-Proofpoint-Spam-Reason: safe On 21/01/2026 11:57 am, Sebastian Andrzej Siewior wrote: > On 2026-01-21 11:53:28 [+0000], Richard Fitzgerald wrote: >> Ah. I didn't notice that. Confusing error message. It says >> "handler=NULL" but handler != NULL. More like "handler=default". > > The supplied argument was NULL. > Anyway. Do you happen to have an answer to my original question. > > Sebastian Afraid I'm not familiar with the WM8350. But I note that call is not registering against a real interrupt pin. It's registering against a virtual irqchip that is itself a threaded IRQ handler. Maybe that makes a difference. That top-level virtual IRQ handler is ONESHOT.