Qualcomm WCN3950, WCN3988 and WCN399x families of WiFi/BT chips preceed the later WCN / QCA devices, but they still incorporate a very simple PMU on die. It controls internal on-chip power networks, but, most importantly, it also requires a certain start-up procedure (first bring up VDD_IO, then bring up other voltages). In order to further unify code supporting different families of QCA / WCN chips and in order to maintain the required power up sequence, properly represent these chips in DTs and modify drivers to use power sequencing for these chips.
Backwards compatibility with the existing DTs is retained by keeping the regulator&clock code in the drivers as a fallback. As a part of the series I've converted only several boards, verifying that all known instances of WCN39xx family work (fixing the issues meanwhile). The rest of devices might follow the pattern later. Signed-off-by: Dmitry Baryshkov <[email protected]> --- Changes in v3: - Dropped patches accepted by maintainers - Changed ath10k to call pwrseq_power_on() unconditionally (Jeff) - Added copyright headers to the changed ath10k files (Jeff) - Link to v2: https://lore.kernel.org/r/[email protected] Changes in v2: - Split the WCN39xx PMU schema from the qcom,qca6390-pmu.yaml (Krzysztof) - Expanded the comment in the WiFi driver (Bartosz) - Changed vddrfa1p3-supply to vddrf-supply. - Link to v1: https://lore.kernel.org/r/[email protected] --- Dmitry Baryshkov (8): Bluetooth: qca: enable pwrseq support for WCN39xx devices Bluetooth: qca: fix ROM version reading on WCN3998 chips wifi: ath10k: snoc: support powering on the device via pwrseq arm64: dts: qcom: qrb2210-rb1: describe WiFi/BT properly arm64: dts: qcom: qrb4210-rb2: describe WiFi/BT properly arm64: dts: qcom: sda660-ifc6560: describe WiFi/BT properly arm64: dts: qcom: sdm845-db845c: describe WiFi/BT properly arm64: dts: qcom: sm8150-hdk: describe WiFi/BT properly arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 60 +++++++-- arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 60 +++++++-- .../arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts | 66 ++++++++-- arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 69 ++++++++-- arch/arm64/boot/dts/qcom/sm8150-hdk.dts | 141 ++++++++++++++++++++- drivers/bluetooth/btqca.c | 2 + drivers/bluetooth/hci_qca.c | 26 ++-- drivers/net/wireless/ath/ath10k/snoc.c | 53 +++++++- drivers/net/wireless/ath/ath10k/snoc.h | 3 + 9 files changed, 430 insertions(+), 50 deletions(-) --- base-commit: 46fe65a2c28ecf5df1a7475aba1f08ccf4c0ac1b change-id: 20251229-wcn3990-pwrctl-cfa64f9d8167 Best regards, -- With best wishes Dmitry
