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QCLINUX: power: sequencing: qcom-wcn: skip BT devices without bt-enable GPIO #807

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QCLINUX: power: sequencing: qcom-wcn: skip BT devices without bt-enable GPIO #807

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14 changes: 14 additions & 0 deletions drivers/power/sequencing/pwrseq-qcom-wcn.c
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Original file line number Diff line number Diff line change
Expand Up @@ -432,6 +432,20 @@ static int pwrseq_qcom_wcn_match_regulator(struct pwrseq_device *pwrseq,
reg_node->parent->parent != ctx->of_node)
return PWRSEQ_NO_MATCH;

/*
* If this is a Bluetooth consumer device but the bt-enable GPIO is not
* configured in the power sequencer (e.g. BT_EN is tied high via a
* hardware pull-up and therefore absent from the DT), don't match.
* The consumer driver will fall back to its legacy power control path
* and correctly set power_ctrl_enabled to false.
*
* BT device nodes are conventionally named "bluetooth" in the DT,
* so use of_node_name_eq() as a generic check rather than enumerating
* specific compatible strings.
*/
if (!ctx->bt_gpio && of_node_name_eq(dev_node, "bluetooth"))
return PWRSEQ_NO_MATCH;

return PWRSEQ_MATCH_OK;
}

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