From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 39037440A2B; Fri, 14 Aug 2026 10:13:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786702441; cv=none; b=rAlzMAJDMVknHg+uxVAuuPEFvXiAEASOG4wD0ViNlxBSBLgNKFslHGJme34jv5ULn5d2UJBCQPYdzpRQtMqt86t9QcvoSsOD/jaWxDXXLDReHn1noQehTVRq22m52MejNen2TtakJNMBIZZi47HEE5gs0HeVt03VKonihFwV0vU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786702441; c=relaxed/simple; bh=OK6DBepB1UForpcDbtnmO95uGkSGgAWA2gsp78tSMpo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bNq96TaBDRmMFJmNhKulo3TG2qs8YNhHg8IKR5H97Lej3Doi6jcZAm4oyTcZrezrxOsH5CW8OViujut9qD+mWv8Wm9qDeyLL9mSMmPFWRdvH46POu43fWLzktXf4dGiJJmm3jcr95SfN16lNXpU4cQ0DF96yQ61oGe3Jmux91ZU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kfb7ASZv; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kfb7ASZv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C1B41F000E9; Fri, 14 Aug 2026 10:13:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786702431; bh=7V+R0TlrgNv6I4jHzxijY+UT4S3tefqsnq6wb+tfRUM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=kfb7ASZvlj7ImBihNTNUd8cFjoE+wTPBBA4WRPRRnmyqPXT2/JBcTM6wrSbHUKefM nb50w3sWQE9SachfeygYuhCN+xcGQPXIyK6KC6jbc9CygMhkkLkUg99ofb4SVOFyAm Q+G9lEFEleApoph2Tjfh/2YWlyNeJAVSlGL1HR6stnn6SdwFC8GLZPzNHH0rfQA1XC R7tCSq8o4OfO2YIKztTUb3Ak+tcHqcoHyBaxALp73N18+si+34xopfbtRWCUUk6g62 baDTP9ggVh3Qz+uvSI3x33RSmq+D3XZQpd1Zx0809VwUuKG2dTq5SvGzVUynpRcI9Q UV+02rT2XZgBA== Date: Fri, 14 Aug 2026 12:13:41 +0200 From: Krzysztof Kozlowski To: Ziyue Zhang Cc: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Dmitry Baryshkov , Manivannan Sadhasivam , Abel Vesa , Krishna Chaitanya Chundru , Qiang Yu , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 1/4] dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Add vdda-refgen and refgen supply properties Message-ID: <20260814-quaint-memorable-goshawk-e6aaf1@quoll> References: <20260810112735.1326807-1-ziyue.zhang@oss.qualcomm.com> <20260810112735.1326807-2-ziyue.zhang@oss.qualcomm.com> 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-Disposition: inline In-Reply-To: <20260810112735.1326807-2-ziyue.zhang@oss.qualcomm.com> On Mon, Aug 10, 2026 at 07:27:32PM +0800, Ziyue Zhang wrote: > QCS8300 and SA8775p PCIe PHYs require dedicated vdda-refgen and refgen > LDO supplies for QREF to provide a stable reference clock. Without these > supplies, the PCIe PHYs cannot work properly. Mark them as required for > the affected compatibles even though it breaks ABI. > > vdda-refgen-supply is required for all three QCS8300 and SA8775p PHY > compatibles. refgen-supply is required for QCS8300 only, as a workaround > for a hardware issue where QREF actually depends on refgen3 rather than > refgen2 as documented, so the PHY driver votes for refgen3 directly via > this supply. > > Signed-off-by: Ziyue Zhang > --- > .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 27 +++++++++++++++++++ > 1 file changed, 27 insertions(+) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof