Re: [PATCH v2 7/7] arm64: dts: qcom: milos-fairphone-fp6: Enable WiFi

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

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/DBF7OWAWQ94M.FSCP4DPF8ZJY@fairphone.com/
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
>> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
>> ---
>>  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.

Or maybe +Jeff/Baochen could answer faster?

Konrad