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Sun, 31 May 2026 00:14:37 -0700 (PDT) Received: from hu-zhangq-sha.qualcomm.com ([114.94.8.21]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-304ed53d14fsm5790518eec.17.2026.05.31.00.14.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 May 2026 00:14:36 -0700 (PDT) From: Qian Zhang To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-kernel@vger.kernel.org, Qian Zhang Subject: [PATCH v4] arm64: dts: qcom: monaco-arduino-monza: Add QCNFA725B WiFi support Date: Sun, 31 May 2026 12:44:09 +0530 Message-Id: <20260531071409.3557734-1-qian.zhang@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=fOEJG5ae c=1 sm=1 tr=0 ts=6a1bdfde cx=c_pps a=cFYjgdjTJScbgFmBucgdfQ==:117 a=Uz3yg00KUFJ2y2WijEJ4bw==:17 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=BREHGghRuHsiCQVRwxcA:9 a=scEy_gLbYbu1JhEsrz4S:22 X-Proofpoint-ORIG-GUID: nPe_W0oF6Jk4xjHBrDf6v29fxLurk6Wh X-Proofpoint-GUID: nPe_W0oF6Jk4xjHBrDf6v29fxLurk6Wh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTMxMDA3OCBTYWx0ZWRfX6LCCJCv7dn2L I0SgP0dRVHbgviCFp1VHBI6LzR0q+wQgi5Z+T1kwCm7YCWzIFDSL0UhQ9SaGzXMx3GC4zXoR1JR oJhmuB93gg3wwaZxWKJkbip39GGrhB4/7k91hkx0R4pAxxdCCrhTV7ev7GMsmUTqWzEda/UCxSL YAZFd8/mx5R1IuFYqKfWuuTw5gIBeFY+TSKoY/9evtvvln5E+xzGcMKfjDAGWELq+6z01Q+XF+i TDWeR2hdPkbDnjmNeYwmMUbpoPoanhn0ggRtW0ne6jI2kUyNddciH10qdWJ4x3Rnl4ip9axlSvH 5E+AcgL/gmliytJPzFrD+BpflKdJt2ef+3ArJKFvxdjqG9EModrMWJFU/8Nv7oKAceVYZHMXR4I zouCnm01o4lHPqmsfpKOXZZULPlBHo2lcIfjknvl8fKL8OsR8psXONmKhewfbNhm3GcAO5mEQFf xzlEh1xkYNGucNwZwJw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-05-31_02,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2605310078 Content-Type: text/plain; charset="utf-8" Add support for the QCNFA725B M.2 WiFi module (WCN6855-based) connected to PCIe0 on the Arduino VENTUNO Q board. The following DT nodes are required: - qcom,wcn6855-pmu: manages GPIO56 (wlan_en) through the pwrseq-qcom-wcn power sequencer, and exposes the WCN6855 internal LDO regulators consumed by the wifi@0 node. - rfkill-gpio: exposes GPIO54 to the rfkill subsystem for RF state management. - wifi@0: describes the WCN6855 endpoint on the PCI tree. Signed-off-by: Qian Zhang --- .../boot/dts/qcom/monaco-arduino-monza.dts | 108 ++++++++++++++++++ 1 file changed, 108 insertions(+) The Arduino VENTUNO Q board uses a QCNFA725B M.2 PCIe WLAN module connected to PCIe0. Two GPIOs are required for proper WLAN operation: - GPIO56 (wlan_en): The WLAN module enable line - GPIO54 (rfkill): The RF kill line Testing: - WLAN module (QCNFA725B) successfully enumerated on PCIe after boot - WiFi scan detects available networks - rfkill block/unblock correctly toggles GPIO54 Changes in v4: - Replace regulator-fixed + vddpe-3v3-supply with qcom,wcn6855-pmu for GPIO56 (wlan_en) power sequencing - Fix module name QCNFA765 -> QCNFA725B - Link to v3: https://lore.kernel.org/all/20260511-linux-next-v3-1-3e22737e= 71eb@oss.qualcomm.com/ Changes in v3: - Replace regulator-fixed with rfkill-gpio for GPIO54 (rfkill) - Reference wlan_en from PCIe node via vddpe-3v3-supply - Fix subject prefix - Link to v2 (wrongly named v1): https://lore.kernel.org/all/20260501051918= .1990713-1-qian.zhang@oss.qualcomm.com/ Changes in v2: - Clarified GPIO roles: GPIO54 for wlan_rf_kill, GPIO56 for wlan_en - Improved commit message readability with bullet list format - Link to v1 (wrongly named v0): https://lore.kernel.org/all/20260425031712= .3800662-1-qian.zhang@oss.qualcomm.com/ diff --git a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts b/arch/arm64= /boot/dts/qcom/monaco-arduino-monza.dts index ca14f0ea4dae..bd5b8a161e7f 100644 --- a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts +++ b/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts @@ -153,6 +153,78 @@ vreg_nvme: regulator-3p3-m2 { enable-active-high; startup-delay-us =3D <20000>; }; + + rfkill-wlan { + compatible =3D "rfkill-gpio"; + label =3D "wlan"; + radio-type =3D "wlan"; + shutdown-gpios =3D <&tlmm 54 GPIO_ACTIVE_HIGH>; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&wlrfkill_default_state>; + }; + + wcn6855-pmu { + compatible =3D "qcom,wcn6855-pmu"; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&wlan_en_state>; + + wlan-enable-gpios =3D <&tlmm 56 GPIO_ACTIVE_HIGH>; + + vddio-supply =3D <&vdc_3v3>; + vddaon-supply =3D <&vdc_3v3>; + vddpmu-supply =3D <&vdc_3v3>; + vddpmumx-supply =3D <&vdc_3v3>; + vddpmucx-supply =3D <&vdc_3v3>; + vddrfa0p95-supply =3D <&vdc_3v3>; + vddrfa1p3-supply =3D <&vdc_3v3>; + vddrfa1p9-supply =3D <&vdc_3v3>; + vddpcie1p3-supply =3D <&vdc_3v3>; + vddpcie1p9-supply =3D <&vdc_3v3>; + + regulators { + vreg_pmu_rfa_cmn: ldo0 { + regulator-name =3D "vreg_pmu_rfa_cmn"; + }; + + vreg_pmu_aon_0p59: ldo1 { + regulator-name =3D "vreg_pmu_aon_0p59"; + }; + + vreg_pmu_wlcx_0p8: ldo2 { + regulator-name =3D "vreg_pmu_wlcx_0p8"; + }; + + vreg_pmu_wlmx_0p85: ldo3 { + regulator-name =3D "vreg_pmu_wlmx_0p85"; + }; + + vreg_pmu_btcmx_0p85: ldo4 { + regulator-name =3D "vreg_pmu_btcmx_0p85"; + }; + + vreg_pmu_rfa_0p8: ldo5 { + regulator-name =3D "vreg_pmu_rfa_0p8"; + }; + + vreg_pmu_rfa_1p2: ldo6 { + regulator-name =3D "vreg_pmu_rfa_1p2"; + }; + + vreg_pmu_rfa_1p8: ldo7 { + regulator-name =3D "vreg_pmu_rfa_1p8"; + }; + + vreg_pmu_pcie_0p9: ldo8 { + regulator-name =3D "vreg_pmu_pcie_0p9"; + }; + + vreg_pmu_pcie_1p8: ldo9 { + regulator-name =3D "vreg_pmu_pcie_1p8"; + }; + }; + }; }; =20 ðernet0 { @@ -347,6 +419,29 @@ pci@0,0 { ranges; reg =3D <0x010000 0x00 0x00 0x00 0x00>; =20 + pci@1,0 { + #address-cells =3D <3>; + #size-cells =3D <2>; + device_type =3D "pci"; + ranges; + reg =3D <0x20800 0x00 0x00 0x00 0x00>; + + wifi@0 { + compatible =3D "pci17cb,1103"; + reg =3D <0 0 0 0 0>; + + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddwlcx-supply =3D <&vreg_pmu_wlcx_0p8>; + vddwlmx-supply =3D <&vreg_pmu_wlmx_0p85>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p8-supply =3D <&vreg_pmu_rfa_1p8>; + vddpcie0p9-supply =3D <&vreg_pmu_pcie_0p9>; + vddpcie1p8-supply =3D <&vreg_pmu_pcie_1p8>; + }; + }; + pci@2,0 { #address-cells =3D <3>; #size-cells =3D <2>; @@ -448,6 +543,19 @@ adv7535_default: adv7535-default-state { function =3D "gpio"; bias-pull-up; }; + + wlrfkill_default_state: wlrfkill-default-state { + pins =3D "gpio54"; + function =3D "gpio"; + drive-strength =3D <2>; + bias-pull-up; + }; + + wlan_en_state: wlan-en-state { + pins =3D "gpio56"; + function =3D "gpio"; + output-low; + }; }; =20 &uart7 { --=20 2.34.1