From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A1E4364EB1; Mon, 23 Feb 2026 13:13:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771852395; cv=none; b=m+SvKeG2ZKlV+OVLOo0vTz+X1FD8ELfoazkIGdv5QvTVluPHWZBNAs10p4zmHYV9iKHFT2Ne0VQmXyB6M6gM2ceLtc2VCem+exMKzoy7BNlJkR595ndsYpvhdCeTglluNkmZEG2ZqkvomfylR6gZeU6MdPtToNsQ8tzJrWfOUgU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771852395; c=relaxed/simple; bh=PGx5m7LGTIbwi3eyqU63kJxfwvIULqIepFQQ5bn0Hr8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=RTqFfY4xM0Yx+4oHl22QriXMIgaWQZM3Yb1KnOjbN8hzjzj3AgvT3Q7ASdrSpwc9ghwEZ+WEznpntYj0Pzous4/LCVy9xwrsz7hHcPUgA4+lhhjojFv5qdpsNskqfvwdupevEyBgQK/eSJJHm7TP9noyZLzBmpG5DavSvUCC+rk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=axa38Lpm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="axa38Lpm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F54CC116C6; Mon, 23 Feb 2026 13:13:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771852395; bh=PGx5m7LGTIbwi3eyqU63kJxfwvIULqIepFQQ5bn0Hr8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=axa38Lpmp0N271LOvYZiPQHwKOl0ubgEzuS6Spx7c0wJ+rKbDkIxQBRBrAVVI3aTu wO6kOtdTn9QqHUWXaVr1hfQ9pvOb1vek3DxjnPkeWTIx7fWqw0gwLOCS9oYCk2wliV ZRgPzV9bj949V+n2vQMMBBpD5X0Xj7ly9Uy+Aw12zlB2M1rEjUhkpoGSXff0ZbFxZp lNRaxyj5tY/ck/lolMVaGGiWC7o58CP5Rb1XjbGaHDUfrYhViTPwy7n4PdkL0g9+4Y b12e3HSkq2ZAmgwZNTXFCmsm/ba4g8NU0JKjVpDMLQK+4cnHGO/eEiseDQTBpIPpHs PqDQmLpqsLuPw== Message-ID: <628df86f-e866-4986-a1a6-8c1b38f3c85f@kernel.org> Date: Mon, 23 Feb 2026 14:13:10 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/1] arm64: dts: qcom: lemans-evk: Add Mezzanine To: Umang Chheda , 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: <20260203193848.123307-1-umang.chheda@oss.qualcomm.com> <20260203193848.123307-2-umang.chheda@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 03/02/2026 20:38, 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..4fab96ba873c > --- /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_0p9: regulator-vreg-0p9 { > + compatible = "regulator-fixed"; > + regulator-name = "VREG_0P9"; > + > + regulator-min-microvolt = <900000>; > + regulator-max-microvolt = <900000>; > + regulator-always-on; > + regulator-boot-on; > + > + vin-supply = <&vreg_3p3>; > + }; > + > + vreg_1p8: regulator-vreg-1p8 { > + compatible = "regulator-fixed"; > + regulator-name = "VREG_1P8"; > + > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + regulator-boot-on; > + > + vin-supply = <&vreg_4p2>; > + }; > + > + vreg_3p3: regulator-vreg-3p3 { > + compatible = "regulator-fixed"; > + regulator-name = "VREG_3P3"; > + > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + regulator-boot-on; > + > + vin-supply = <&vreg_4p2>; > + }; > + > + vreg_4p2: regulator-vreg-4p2 { > + compatible = "regulator-fixed"; > + regulator-name = "VREG_4P2"; > + > + regulator-min-microvolt = <4200000>; > + regulator-max-microvolt = <4200000>; > + regulator-always-on; > + regulator-boot-on; > + > + vin-supply = <&vreg_sys_pwr>; > + }; > + > + vreg_sys_pwr: regulator-vreg-sys-pwr { And here the same pattern as in Monaco EVK. This is pointless, you just inflate the kernel and DTS with dummies. Best regards, Krzysztof