On Tue, Jan 06, 2026 at 03:01:10AM +0200, Dmitry Baryshkov wrote: > 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 works (fixing the issues > meanwhile). The rest of devices might follow the pattern later. > > Signed-off-by: Dmitry Baryshkov <[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 (14): > regulator: dt-bindings: qcom,wcn3990-pmu: describe PMUs on WCN39xx > 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 > power: sequencing: qcom-wcn: add support for WCN39xx
> arm64: dts: qcom: qrb4210-rb2: Fix UART3 wakeup IRQ storm > arm64: dts: qcom: sdm845-db845c: drop CS from SPIO0 > arm64: dts: qcom: sdm845-db845c: specify power for WiFi CH1 > arm64: dts: qcom: sm8150: add uart13 Note for the Bjorn: I'd ask to merge these DT patches in this cycle, while merging the rest of the patches only in the next cycle after landing all PMU-related driver changes. If it helps, I can submit the patches above separately. > 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 -- With best wishes Dmitry
