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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: PIzqs7ntNWS55NAMT7j9KOoNIW/PTC4wBxg6I/+bGtLNC2CXsGFjlJLZQhti+mfCHowPmQERD7ydEdHjr21uZocu2b+CMYSibPivo7O883ub7Qbb7aGjspCEmnjEZj8cLKkCw03r6ZV3spaecd8vdZlg2ftXiiEptco5SL1Wk6zIRj9Pqea4IuZm4ZqeflZsg/opcnCCuVkkol9rWaLA9BoIhZ152fRO2OAVWBBkfoTHps/Sn38OxSb94fL4PxlHuvaodKlFdPAG1MZ0IODtyngClxKbRDm1Vf7F5evdVYyE/ivKnYDg/e4nLixCSDvNA6GF0MsqZ2IVIxcuDsqQiPo32XfEFoLH6o33IIjUJ3LT8cVqKwSWGSx5FL6QIkIpEcmzKyJWsWieb52MOYhqxrzBu5P1FzJAvJcrWo2Ziw+edmMlm0j8gX6T9d0/39G8 X-Exchange-RoutingPolicyChecked: RIBY05Vxh74sLyjqPANEEewwJAp2uoSILTh+hxJS01kqNmV9D/URnDlSS+Nk+bzS4DE4dwrYviNzjHD4mgJfk+/4RJKOBkrRahp2SqCFK15v9r0EsU1khqkjpXz0q9xN9UBemKbOGq3Pmvw5wk6N5be0+Z2gnB/blFgj73MwAmVPhZcQVD+rVCzvE4Yr3iMTEKx7k5bX5v0A/0zU20782WoEU6ZSzow0G+ShMoymeoYd2RKQp5VRyuFMZd8/5n6vi8ZJF6pbkxSVXfH6AqOgGeQRr/YkkWzDv6W+iZiO3/6X7G2BlWMyxpZRY5ZCdK3uixN3yFe81kRSDCOrcIJgpg== X-OriginatorOrg: opensource.cirrus.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2026 16:26:54.4944 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 887da1b6-f089-43f0-1bac-08df3a90708f 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-PH4PEPF0000B60B.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR19MB5286 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA0MDA2NSBTYWx0ZWRfX0t4OA2ohKSSG Ju2e0bRpBqmOaiB24iUKihUb/ZntfhXUt81Vv6ry2VQm5gb+m7gaqKrKBjBh1yJcTidRm6UjMgL T4k5rfgui23Q+mqLODKlq3S3AwY4eUSc56K8/e7i0Ib9zpBY7VwPxiXhNreaRtVDg9whMMQU77E hLh9rvtFYvwC65xhiV3btwGRox7VTjytwiZbFH9X5prqaDhD5bMCkUTXlM2YkIxKVVNwiNZxsM8 Vq7fP/ZQzabkqgtAsXqkT4elrc4xRAwxVV8wCPo3Ju1SrdQ8uR7EshUt8LLAul2HxyB4+RRQev2 UHx/LGzA7i6CMER9oCHpgUV0N9MSZU38twioSrDDMR/MRucg9mXyi3MW5XSoZSLiNajDKTZ+1n9 Bjv7B4CHyFzmIMMnfITvZIIBUCkA+NAKrrr7y5tPmgOuizuagv716HCmpQVY1+ROK0mgi/+LJzl juFmwyv89ksNrWfN4yQ== X-Authority-Analysis: v=2.4 cv=Vr62kO2n c=1 sm=1 tr=0 ts=6aeb5cd4 cx=c_pps a=bA8WxO540RzhAQ9tgvMHlg==:117 a=h1hSm8JtM9GN1ddwPAif2w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=kj9zAlcOel0A:10 a=zJRp6_cAMcgA:10 a=s63m1ICgrNkA:10 a=RWc_ulEos4gA:10 a=VkNPw1HP01LnGYTKEx00:22 a=iX4cTi3TZMoOKdANLEfx:22 a=Dj2-6B8FqX4mGL0U3gbX:22 a=cMDUSdu-AAAA:8 a=w1d2syhTAAAA:8 a=e_JNoOPcMW4zKQtYRXEA:9 a=CjuIK1q_8ugA:10 a=QRaI_VI5Kbc4sAalow4w:22 X-Proofpoint-ORIG-GUID: 5KGfNtaVGLwZmavPglh55bV_SLNcrmdm X-Proofpoint-GUID: 5KGfNtaVGLwZmavPglh55bV_SLNcrmdm X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA0MDA2NSBTYWx0ZWRfX0k4w/WbRt7H+ AxBGd6O27cv3dOQ1QjY4YpAPxTmKumefvRdsU18dCEZCumPR5GySv5g5enj9xvgiOJ1GzrrzSdG YfqwiCCc319DmiSx+NIuSw1ZDr3FjwI= X-Proofpoint-Spam-Reason: safe On Wed, Nov 04, 2026 at 04:58:32PM +0100, Stefano Radaelli wrote: > From: Stefano Radaelli > > When switching SYSCLK from MCLK to FLL, DAPM may keep SYSCLK powered > and skip the PRE_PMU event that normally enables the FLL. This leaves > SYSCLK sourced from a disabled FLL and can cause playback to fail. > > Enable FLL_OSC_ENA and FLL_ENA before selecting FLL as the SYSCLK > source when WM8904_CLK_SYS_ENA is already set. > > On VAR-SOM-MX8X, playing audio at 48 kHz followed immediately by > 8 kHz reproduced an I/O error when switching from MCLK to FLL. > With this change, playback succeeds. > > Co-developed-by: Alexander Herfurtner > Signed-off-by: Alexander Herfurtner > Signed-off-by: Stefano Radaelli > --- Reviewed-by: Charles Keepax Thanks, Charles