PENDING: arm64: dts: qcom: lemans-evk: Remove WCN6855 PMU node to bypass pwrseq flow #521
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…ass pwrseq 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 <[email protected]>
Collaborator
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May be let's keep it failing till it is resolved formally in upstream. |
Author
Hi maintainer, without this temporary fix, BT cannot power up after an on→off→on cycle, so the functionality is blocked. The DTS change passes DT binding checks. |
Contributor
@shashim-quic So you do not want the BT feature to be enabled in the meantime? |
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@shashim-quic Without this change, the Bluetooth functionality will remain blocked. We would like to add the workaround, as the formal upstream fix (M.2 solution) has no confirmed timeline and may take a long time to be available. |
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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: 4366079
@Mani-Sadhasivam