On Mon May 4, 2026 at 3:10 PM CEST, Konrad Dybcio wrote: > On 5/1/26 11:20 AM, Luca Weiss wrote: >> Hi Konrad, >> >> On Tue Apr 7, 2026 at 3:16 PM CEST, Konrad Dybcio wrote: >>> On 4/3/26 9:35 PM, Dmitry Baryshkov wrote: >>>> On Fri, Apr 03, 2026 at 03:52:53PM +0200, Luca Weiss wrote: >>>>> Configure and enable the WiFi node, and add the required pinctrl to >>>>> provide the sleep clock from the PMK8550 (PMK7635) to WCN6755. >>>>> >>>>> Thanks to Alexander Koskovich for helping with the bringup, adding >>>>> the missing pinctrl to make the WPSS stop crashing. >>>>> >>>>> Link: >>>>> https://lore.kernel.org/linux-arm-msm/[email protected]/ >>>>> Reviewed-by: Dmitry Baryshkov <[email protected]> >>>>> Signed-off-by: Luca Weiss <[email protected]> >>>>> --- >>>>> arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts | 19 ++++++++++++++++++- >>>>> 1 file changed, 18 insertions(+), 1 deletion(-) >>>>> >>>>> diff --git a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>>>> b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>>>> index db72418b7195..d8ac495ca7c8 100644 >>>>> --- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>>>> +++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts >>>>> @@ -242,7 +242,7 @@ wcn6750-pmu { >>>>> >>>>> clocks = <&rpmhcc RPMH_RF_CLK1>; >>>>> >>>>> - pinctrl-0 = <&bluetooth_enable_default>; >>>>> + pinctrl-0 = <&bluetooth_enable_default>, >>>>> <&pmk8550_sleep_clk_default>; >>>>> pinctrl-names = "default"; >>>>> >>>>> regulators { >>>>> @@ -766,6 +766,17 @@ &pmiv0104_eusb2_repeater { >>>>> qcom,tune-usb2-preem = /bits/ 8 <0x6>; >>>>> }; >>>>> >>>>> +&pmk8550_gpios { >>>>> + pmk8550_sleep_clk_default: sleep-clk-default-state { >>>>> + pins = "gpio5"; >>>>> + function = "func1"; >>>>> + input-disable; >>>>> + output-enable; >>>> >>>> Hmm, if it's a sleep_clk, should it not be handled via the power >>>> sequencer? >>> >>> If you mean that it may be needed to toggle it with specific timings, >>> possibly.. seems that WCN6855 has a "xo-clk" GPIO defined. I requested >>> access to some docs that I think should have the answer, hopefully should >>> get it soon. >> >> Did you manage to get anything there yet? > > Yeah, sorry, it got lost in the sea of emails.. > > The PDF talks about the electrical requirements of the clock signal and > the section titled "Power-up sequence timing" doesn't mention it at all, > so my assumption would be "OK so long as it's ticking before you power > up the WCN"
Thanks for checking! Is this an R-b then? Regards Luca
