Shikra bt wcn clock enable - #1190
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yepurisiddu wants to merge 2 commits into
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yepurisiddu wants to merge 2 commits into
yepurisiddu wants to merge 2 commits into
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…ed power path RPMCC previously kept WCN clocks enabled via proxy votes, so the pwrseq power path in hci_qca did not need to explicitly manage the clock. With proxy vote removal, each consumer must explicitly enable and disable its required clocks. Extend the pwrseq-based power path to acquire and manage an optional WCN clock. In qca_serdev_probe(), acquire the clock using devm_clk_get_optional(). In qca_regulator_enable(), enable the clock after a successful pwrseq_enable() with proper rollback on failure. In qca_power_off(), disable the clock before pwrseq_disable(). Targets that do not define a clock in DTS are unaffected since devm_clk_get_optional() returns NULL and all clock operations are guarded accordingly. Link: https://lore.kernel.org/linux-arm-msm/20260925-bt-wcn-clk-enable-v1-1-30bee88c4de4@oss.qualcomm.com/ Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
With RPMCC proxy vote removal, the Bluetooth node must explicitly declare its WCN clock dependency so the hci_qca driver can vote for it during BT power on/off via the pwrseq path. CQM SOM uses RPM_SMD_RF_CLK2 while IQS SOM uses RPM_SMD_RF_CLK1, reflecting the WCN clock assignments on each board variant. Link: https://lore.kernel.org/linux-arm-msm/20260925-bt-wcn-clk-enable-v1-2-30bee88c4de4@oss.qualcomm.com/ Signed-off-by: Yepuri Siddu <yepuri.siddu@oss.qualcomm.com>
yepurisiddu
requested review from
a team,
Amit Kucheria (idlethread),
Mukesh Ojha (mukeshojha-linux) and
yijiyang
September 25, 2026 06:37
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Merge Check Failed: No CR Numbers Found Error: No Change Request numbers were found. Please add Change Request numbers to your pull request description in the format CRs-Fixed: 12345 or link GitHub issues that are associated with Change Requests. |
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Merge Check Failed: CR Not Eligible for Merge CR 4684986 is not eligible for merge. The parent software image for kernel.qli.2.0 is not development complete. Entity: Please ensure the CR passes both CCT (ComponentChangeTasks) and ICT (Integration Change Tasks) validations. |
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Add WCN clock enable/disable support for Shikra by enabling the clock during BT power-on and disabling it during BT power-off via the pwrseq path.
With RPMCC proxy vote removal on QCM2290, BT can no longer rely on proxy votes to keep the WCN clock active. This change ensures BT explicitly manages the WCN clock. Without this change, BT functionality will be impacted after the proxy vote removal.
Link: https://lore.kernel.org/linux-arm-msm/20260925-bt-wcn-clk-enable-v1-0-30bee88c4de4@oss.qualcomm.com/
CRs-fixed: 4684986