WORKAROUND: arm64: dts: qcom: Remove WCN6855 PMU node to bypass pwrse… #214
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…q flow There is a conflict between the current DTS configuration and the driver behavior for the WCN6855 Bluetooth path. With the PMU node in place, the driver takes the pwrseq code path unintentionally, which leads to Bluetooth failing to power up during an on -> off -> on transition. To unblock function, temporarily remove the WCN6855 PMU node so that the driver follows the non-pwrseq path and avoids the unexpected sequence. This is a TEMPORARY WORKAROUND. Once a proper M.2 binding/solution is upstreamed, will re-submit both DTS and driver changes aligned with the M.2 model. Signed-off-by: Wei Deng <wei.deng@oss.qualcomm.com>
shashim-quic
approved these changes
Feb 2, 2026
Tests-kaanapali-qrd
Tests-lemans-evk
Tests-qcs615-ride
Tests-qcs6490-rb3gen2
Tests-qcs8300-ride
Tests-qcs9100-ride-r3
Tests-sm8750-mtp
Tests-x1e80100-crd
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Author
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Hi @shashim-quic, I saw some jobs failed here, I checked log, then found the f/w not found issue is not reproduced in the local build(2.0 base+this fix). |
Tests-kaanapali-qrd
Tests-lemans-evk
Tests-qcs615-ride
Tests-qcs6490-rb3gen2
Tests-qcs8300-ride
Tests-qcs9100-ride-r3
Tests-sm8750-mtp
Tests-x1e80100-crd
|
Tests-kaanapali-qrd
Tests-lemans-evk
Tests-qcs615-ride
Tests-qcs6490-rb3gen2
Tests-qcs8300-ride
Tests-qcs9100-ride-r3
Tests-sm8750-mtp
Tests-x1e80100-crd
|
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…q flow
There is a conflict between the current DTS configuration and the driver behavior for the WCN6855 Bluetooth path. With the PMU node in place, the driver takes the pwrseq code path unintentionally, which leads to Bluetooth failing to power up during an on -> off -> on transition.
To unblock function, temporarily remove the WCN6855 PMU node so that the driver follows the non-pwrseq path and avoids the unexpected sequence.
This is a TEMPORARY WORKAROUND. Once a proper M.2 binding/solution is upstreamed, will re-submit both DTS and driver changes aligned with the M.2 model.
CRs-Fixed: 4406298