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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: LoCOLwPs6XBZAEJ9r9j15CLGlUQSpBbfc380Zt8TWfcTlWnluDxup9RZe5J+80MUK0F0Y91WfvvZoiOFFEuvfu56b74SPMRn3U1H8MBHCkT8iYf2P4DcgAM0e27IGYs9X40j1RAIpaJyv0O4dhLmmwdVaUTzAhUyj3NMcqUJxmat16wGJrRjahoceo9CnPMhDVzq94l8R0MPSYIfYgTWM2WRRB1X+k+3qIQS0ru766w1HU7Ax6Tg3DRdwaTZCOvjcIfeHLYR5qLPzeKqUQ4Hj+/dXujFt7a84z/tqVJGrYWK/sTGK/8rJN1Er9f6nMM9YY0RRXctOzVr94paq1lWfFca2pL0qMzO0LpBKzNpn/+qi2kae9Wg4xtrxgC7QhXa0DdZm2sWYF/wgpXnZtsmIHeaQM2XSkvp052wnjibbgt5OUZthqEehJc65urwFbj9 X-OriginatorOrg: opensource.cirrus.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Feb 2026 16:06:36.1221 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4a775372-ebc7-4d99-c74d-08de72f58570 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-MWH0EPF000A6735.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR19MB7120 X-Proofpoint-ORIG-GUID: fjqT-8BIPiYzjHvUIHaBhnd6eFJ8sDpK X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjIzMDEzOCBTYWx0ZWRfX8gBAKXoJ2ufT pg2Xgt76H9zHfXi3i3YR+bRXcjsLvT417e1OjV/ULHBj9aNpcIzqQZ8xiHGW+VVu743+89yNFjJ bGPDkBjMQSkTnWJT8PzkxnLC3h+fBpTrgjtpz7whaRrlTEuMKwUbNIqbXCB/n3Q/tcTRmBPlx+o CCvyZK6elbTc61EjuQiKurDHdS3tnKJVp+BQdZ5H69QVg2yR2S34KkNdwOLu6r+oU2OkFgmN9/K nc5P60uvXc1KyEBFVFVkLpLyVYeGdHn5V9LyNIZkp3fh72xEGx0pS3hIyPF71DKTVZHM+XWC5Bv aBcyJF8Z+DSZxdNHDloLEQS3APfOhpLMfZyKaTKvyfOxMzFNN678zEHDMRn4vCytbwLMjNPw8nE UWGUNxP+5u+/lggP0iygixYE1AglXAkcUIqwHTYlcDs5EZrGgjpg6cnQMN7SvaSMj8JGD2107lx oY7RmOZ+rbS8HBWeSrg== X-Authority-Analysis: v=2.4 cv=V99wEOni c=1 sm=1 tr=0 ts=699c7b10 cx=c_pps a=BX3zSU6Em1tkVDhR+nIdzw==:117 a=h1hSm8JtM9GN1ddwPAif2w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=HzLeVaNsDn8A:10 a=s63m1ICgrNkA:10 a=RWc_ulEos4gA:10 a=VkNPw1HP01LnGYTKEx00:22 a=iX4cTi3TZMoOKdANLEfx:22 a=Dj2-6B8FqX4mGL0U3gbX:22 a=mmtDOMPXX2ZRX6g6iDEA:9 X-Proofpoint-GUID: fjqT-8BIPiYzjHvUIHaBhnd6eFJ8sDpK X-Proofpoint-Spam-Reason: safe When the CS35L41 driver suspends, it is put into hibernation, and the regmap goes into cache_only, but the firmware is still running, and wm_adsp is not stopped. If userspace attempts to read a firmware control, it will perform a regmap_raw_read() and this will produce an error in the kernel log. To prevent these spurious errors, add an apis into cs_dsp and wm_adsp to allow wm_adsp to hibernate. In this hibernation mode, reads or writes to the dsp controls would be rejected with -EPERM rather than -EBUSY, and no error will be printed to the kernel log. Stefan Binding (3): firmware: cs_dsp: Add API to hibernate the DSP ASoC: codecs: wm_adsp: Allow wm_adsp to hibernate without stopping DSP ASoC: cs35l41: Hibernate wm_adsp on runtime suspend drivers/firmware/cirrus/cs_dsp.c | 49 +++++++++++++++++++++++--- include/linux/firmware/cirrus/cs_dsp.h | 3 ++ sound/soc/codecs/cs35l41.c | 5 +++ sound/soc/codecs/wm_adsp.c | 6 ++++ sound/soc/codecs/wm_adsp.h | 1 + 5 files changed, 60 insertions(+), 4 deletions(-) -- 2.43.0