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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30c1be95ebfsm9357803eec.31.2026.06.21.23.42.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Jun 2026 23:42:09 -0700 (PDT) From: Wei Deng Date: Mon, 22 Jun 2026 12:11:57 +0530 Subject: [PATCH v3 2/2] arm64: dts: qcom: lemans-evk: Describe the PCIe M.2 Key E connector Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260622-v3-lemans-split-v3-2-d26bb22594e3@oss.qualcomm.com> References: <20260622-v3-lemans-split-v3-0-d26bb22594e3@oss.qualcomm.com> In-Reply-To: <20260622-v3-lemans-split-v3-0-d26bb22594e3@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, quic_chezhou@quicinc.com, cheng.jiang@oss.qualcomm.com, shuai.zhang@oss.qualcomm.com, jinwang.li@oss.qualcomm.com, xiuzhuo.shang@oss.qualcomm.com, mengshi.wu@oss.qualcomm.com, Wei Deng , Dmitry Baryshkov , Manivannan Sadhasivam , Bartosz Golaszewski X-Mailer: b4 0.14.3 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjIyMDA2MyBTYWx0ZWRfX/GieHzF6shl/ 0K9C5ChEvITjE5PB31pbP2J5gX6x2QQL7Et00HIehuNxXaFw2ofHobjQ8O1e0F5XPO0wUVWiATp Oqi4BMQcP3CsxUh4ypnI/qR27yutp77U2hJanLhdnPJAUhmJL8BeL8Kl9ReUEO74Ju6GckTfZu8 pmsRj9dL9JTMMANZe0bTwrfaKehwopXg4PJQAjkb0BZ98jTQzlDBlhOm9z90k2S5cY/MF+8hs4N hf2HzT5DO5dLI0MDBMuYjMZkB/6vM4Aq0qjWyclvPvIlFNn4EASs4VDmGYljuO8LOdpXTo9ZXKH f6EkJICscBADfcZBuYUq54KyNRhlNFAUt29CtbGyidEEdJwWWoGWfS31FRo8+WtzBoDH+TS9Pc3 wHF7iUXeX2Rptzuc+yYnCEZGy4c2sTa72gIUdcWI3Wqbg4EbdjQGqqofM1mgFbF952Bm00TmtYP ytsk47xqZkxV+1iQF7Q== X-Proofpoint-ORIG-GUID: hqqKBK3o3ky_xE4a96NF50esKFUX8mRV X-Authority-Analysis: v=2.4 cv=E7P9Y6dl c=1 sm=1 tr=0 ts=6a38d943 cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=H_VFOEHctDopGwz7gSgA:9 a=QEXdDO2ut3YA:10 a=PxkB5W3o20Ba91AHUih5:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjIyMDA2MyBTYWx0ZWRfX4ZKE2gEmoH0t qLJx8Le8js3OImBOzS8bT2hetcB04jYh2BqljAzlDawGg/jruOnaWS/QNS0voLI/jZ2gZXPqZct PpFzOaIy7ONJjvzUIqAAyWMzSkeV5iU= X-Proofpoint-GUID: hqqKBK3o3ky_xE4a96NF50esKFUX8mRV 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=2026-06-22_01,2026-06-18_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 impostorscore=0 spamscore=0 phishscore=0 bulkscore=0 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606220063 The lemans EVK has the PCIe M.2 Mechanical Key E connector to connect wireless connectivity cards over PCIe and UART interfaces. Hence, describe the connector node and link it with the PCIe 0 Root Port and UART17 nodes through graph port/endpoint. The M.2 Key E connector is powered by a 3.3V fixed regulator (vreg_wcn_3p3) which is sourced from the board's 12V DC input rail (vreg_dcin_12v). Both regulators are always-on and are required by the pcie-m2-e-connector binding. Also add the serial1 = &uart17 alias, which is required for the Bluetooth serdev device to be enumerated on the UART17 interface. Reviewed-by: Bartosz Golaszewski Reviewed-by: Dmitry Baryshkov Reviewed-by: Manivannan Sadhasivam Signed-off-by: Wei Deng --- arch/arm64/boot/dts/qcom/lemans-evk.dts | 75 +++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts index 34dfc8d22b6a..b2967cb53760 100644 --- a/arch/arm64/boot/dts/qcom/lemans-evk.dts +++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts @@ -21,6 +21,7 @@ aliases { ethernet0 = ðernet0; mmc1 = &sdhc; serial0 = &uart10; + serial1 = &uart17; serial2 = &uart0; }; @@ -88,6 +89,38 @@ usb2_con_hs_ep: endpoint { }; }; + connector-3 { + compatible = "pcie-m2-e-connector"; + vpcie3v3-supply = <&vreg_wcn_3p3>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + m2_e_pcie_ep: endpoint@0 { + reg = <0>; + remote-endpoint = <&pcieport0_ep>; + }; + }; + + port@3 { + reg = <3>; + #address-cells = <1>; + #size-cells = <0>; + + m2_e_uart_ep: endpoint@0 { + reg = <0>; + remote-endpoint = <&uart17_ep>; + }; + }; + }; + }; + edp0-connector { compatible = "dp-connector"; label = "EDP0"; @@ -178,6 +211,17 @@ vmmc_sdc: regulator-vmmc-sdc { regulator-max-microvolt = <2950000>; }; + vreg_dcin_12v: regulator-dcin-12v { + compatible = "regulator-fixed"; + + regulator-name = "VREG_DCIN_12V"; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + + regulator-always-on; + regulator-boot-on; + }; + vreg_sdc: regulator-vreg-sdc { compatible = "regulator-gpio"; @@ -191,6 +235,19 @@ vreg_sdc: regulator-vreg-sdc { startup-delay-us = <100>; }; + + vreg_wcn_3p3: regulator-wcn-3p3 { + compatible = "regulator-fixed"; + + regulator-name = "VREG_WCN_3P3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + vin-supply = <&vreg_dcin_12v>; + + regulator-always-on; + regulator-boot-on; + }; }; &apps_rsc { @@ -742,6 +799,14 @@ &pcie1_phy { status = "okay"; }; +&pcieport0 { + port { + pcieport0_ep: endpoint { + remote-endpoint = <&m2_e_pcie_ep>; + }; + }; +}; + &pmm8654au_0_pon_resin { linux,code = ; status = "okay"; @@ -970,6 +1035,16 @@ &uart10 { status = "okay"; }; +&uart17 { + status = "okay"; + + port { + uart17_ep: endpoint { + remote-endpoint = <&m2_e_uart_ep>; + }; + }; +}; + &ufs_mem_hc { reset-gpios = <&tlmm 149 GPIO_ACTIVE_LOW>; vcc-supply = <&vreg_l8a>; -- 2.34.1