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/
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 cbe1507b0aaa..75f2b3a3e572 100644
--- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
+++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
@@ -232,7 +232,7 @@ 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 {
@@ -704,6 +704,17 @@ &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;
+		bias-disable;
+		power-source = <0>;
+	};
+};
+
 &pmr735b_gpios {
 	s1j_enable_default: s1j-enable-default-state {
 		pins = "gpio1";
@@ -962,3 +973,9 @@ &usb_1_hsphy {
 
 	status = "okay";
 };
+
+&wifi {
+	qcom,calibration-variant = "Fairphone_Gen_6";
+
+	status = "okay";
+};

-- 
2.52.0

On 1/16/26 3:50 PM, 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/
> 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 cbe1507b0aaa..75f2b3a3e572 100644
> --- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
> +++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
> @@ -232,7 +232,7 @@ 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 {
> @@ -704,6 +704,17 @@ &pmiv0104_eusb2_repeater {
>  	qcom,tune-usb2-preem = /bits/ 8 <0x6>;
>  };
>  
> +&pmk8550_gpios {
> +	pmk8550_sleep_clk_default: sleep-clk-default-state {
> +		pins = "gpio5";

I'm thinking how to best reflect that. Perhaps gpio-gate-clock which
would be consumed by the PMU?

FWIW PMK8550 can reportedly output this clock from GPIO3 and GPIO5
(not sure if at once) if set to FUNC1

Konrad

On Fri, Jan 16, 2026 at 03:50:51PM +0100, 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/
> 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(-)
> 
> @@ -962,3 +973,9 @@ &usb_1_hsphy {
>  
>  	status = "okay";
>  };
> +
> +&wifi {
> +	qcom,calibration-variant = "Fairphone_Gen_6";

With the hope of getting the board data submitted to ath11k@


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>



> +
> +	status = "okay";
> +};
> 
> -- 
> 2.52.0
> 

-- 
With best wishes
Dmitry