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([2406:b400:b5:274e:4cd7:f9d9:9aac:dc5e]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82379b1f188sm19012324b3a.13.2026.02.02.11.31.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Feb 2026 11:31:38 -0800 (PST) Message-ID: Date: Tue, 3 Feb 2026 01:01:08 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/1] arm64: dts: qcom: lemans-evk: Add Mezzanine To: Konrad Dybcio , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, richardcochran@gmail.com Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mohd.anwar@oss.qualcomm.com, krishna.chundru@oss.qualcomm.com, monish.chunara@oss.qualcomm.com References: <20260129172850.1175728-1-umang.chheda@oss.qualcomm.com> <20260129172850.1175728-2-umang.chheda@oss.qualcomm.com> <27c91542-820e-49bd-870a-d492be21958a@oss.qualcomm.com> Content-Language: en-US From: Umang Chheda In-Reply-To: <27c91542-820e-49bd-870a-d492be21958a@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=XP89iAhE c=1 sm=1 tr=0 ts=6980fb9c cx=c_pps a=rEQLjTOiSrHUhVqRoksmgQ==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=uqgqG2pLL8I79JWUUZYA:9 a=QEXdDO2ut3YA:10 a=2VI0MkxyNR6bbpdq8BZq:22 X-Proofpoint-GUID: I10D3XI6igOx8uoA5KRT-gY5uhrS9diO X-Proofpoint-ORIG-GUID: I10D3XI6igOx8uoA5KRT-gY5uhrS9diO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAyMDE1MyBTYWx0ZWRfX1KuHQB9+gpM3 d19TgVfpfXTgbUnwrrPfOBjGG/rILD8ljpUcUMXQVnRub1bEjGa+Cw02zoiso+o/+c051QM+thy v36WnpMUylp4tdAdiJcCgIleC/NrGQvo7TZAjYNEW0ixUySHnMJ8o/aQhPN4myCSE15EBpCjTDz iS/ONJiKN37jntorfMKOQ17QHlTnuiveoUZNtDOqKqPmA+76WVWFGT5YyzWU5o8ksIkjd3WgwJW 5v33mI1HQbisIywQdy37C0j4eSGMQrRFQk2hjQcChOCWnbJKCRGvMxG+kgRDSZbyvgpHsEEUbyX d2RunaIcT2xnXjd0+UsO5Rc5VvXHFr9E216MYzvXA5SxOEt78OXSmR3JIMPcHfxWU0YamQPM7/1 8aMvxXMYtmjCzOSIqa9Q71/zDCSoDencUshx7CkbriGN9/xVo98E1jHRTNxCdttcpemzLizJNwT 8kf82C8MXx9UDd6S/jQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-02_05,2026-02-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 adultscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 spamscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602020153 Hello Konrad, On 1/30/2026 4:21 PM, Konrad Dybcio wrote: > On 1/29/26 6:28 PM, Umang Chheda wrote: >> The Mezzanine is an hardware expansion add-on board designed >> to be stacked on top of Lemans EVK. >> >> It has following peripherals : >> >> - 4x Type A USB ports in host mode. >> - TC9563 PCIe switch, which has following three downstream ports (DSP) : >> - 1st DSP connects M.2 E-key connector for connecting WLAN endpoints. >> - 2nd DSP connects M.2 B-key connector for connecting cellular modems. >> - 3rd DSP with support for Dual Ethernet ports. >> - eMMC. >> - Additional 2.5GbE Ethernet PHY connected to native EMAC with support for >> MAC Address configuration via NVMEM. >> - EEPROM. >> - LVDS Display. >> - 2*mini DP. >> >> Add support for following peripherals : >> - TC9563 PCIe Switch. >> - Additional 2.5GbE Ethernet Port. >> - EEPROM. >> >> Written with inputs from : >> Mohd Ayaan Anwar - Ethernet. >> Krishna Chaitanya Chundru - PCIe >> Monish Chunara - EEPROM. >> >> Signed-off-by: Umang Chheda >> --- >> arch/arm64/boot/dts/qcom/Makefile | 4 + >> .../boot/dts/qcom/lemans-evk-mezzanine.dtso | 301 ++++++++++++++++++ >> 2 files changed, 305 insertions(+) >> create mode 100644 arch/arm64/boot/dts/qcom/lemans-evk-mezzanine.dtso >> >> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile >> index f80b5d9cf1e8..79449004adfd 100644 >> --- a/arch/arm64/boot/dts/qcom/Makefile >> +++ b/arch/arm64/boot/dts/qcom/Makefile >> @@ -43,6 +43,10 @@ dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-camera.dtb >> lemans-evk-el2-dtbs := lemans-evk.dtb lemans-el2.dtbo >> >> dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-el2.dtb >> + >> +lemans-evk-mezzanine-dtbs := lemans-evk.dtb lemans-evk-mezzanine.dtbo >> + >> +dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-mezzanine.dtb >> dtb-$(CONFIG_ARCH_QCOM) += milos-fairphone-fp6.dtb >> dtb-$(CONFIG_ARCH_QCOM) += monaco-evk.dtb >> dtb-$(CONFIG_ARCH_QCOM) += msm8216-samsung-fortuna3g.dtb >> diff --git a/arch/arm64/boot/dts/qcom/lemans-evk-mezzanine.dtso b/arch/arm64/boot/dts/qcom/lemans-evk-mezzanine.dtso >> new file mode 100644 >> index 000000000000..a0dc6daec754 >> --- /dev/null >> +++ b/arch/arm64/boot/dts/qcom/lemans-evk-mezzanine.dtso >> @@ -0,0 +1,301 @@ >> +// SPDX-License-Identifier: BSD-3-Clause >> +/* >> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. >> + */ >> + >> +/dts-v1/; >> +/plugin/; >> + >> +#include >> + >> +&{/} { >> + model = "Qualcomm Technologies, Inc. Lemans-evk Mezzanine"; >> + >> + vreg_sys_pwr: regulator-vreg-sys-pwr { >> + compatible = "regulator-fixed"; >> + regulator-name = "VREG_SYS_PWR"; >> + >> + regulator-always-on; >> + regulator-boot-on; > nit: usually we put these at the end Ack > > [...] > >> +&tlmm { >> + ethernet1_default: ethernet1-default-state { >> + ethernet1_mdc: ethernet1-mdc-pins { > You can drop the labels for these inner entries, as you never > reference them Ack > > Konrad Thanks, Umang