From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55E98C79F9E for ; Tue, 8 Sep 2026 14:58:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=I4l0KOXLZJiAZIc2yCm0qYGOfFPZK9MVevGCMpxseTA=; b=CXEhwxttLkUteQ ADz3S00PMnq81F6Yl4UHqD421N+xH7ZEMbPfAZQcyKdQlzgGSEXuAfycVp5Gn4zwh5h++5BkYeCi5 GcbGbkajIAERM+KOsZBYRcqlkk2471KHb8AABUu63pi+qbXhzRT8hOFF6TI7pfluB6fyvMUN1algv vlALqCkToZGc62wXJCpLTU65n8DfCwqWnLSyfnhGjvPRBSas8BN37pg7ESE5EPqlmolbS0NRtiPC4 2kK9pvCVabY77CcpTiMRrk77+EcC+DAqTdgWedywLUnbO4sBwaO8LsBuC7PuqpSUmD5oyzc4VBcUo odWSq14fsXUIiVUKCfgg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x3xH6-00000009ML7-0XgN; Tue, 08 Sep 2026 14:58:16 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x3xGz-00000009MFJ-2ibl for linux-amlogic@bombadil.infradead.org; Tue, 08 Sep 2026 14:58:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=seUOJdBEpaaK2UmSYK4aVK9u6IT6FpqMeeYKLF/OBic=; b=JQa77Yxvp/fXkh9QGVasDA9v0E 8ARsoPNgKGIm/WoJqh0sXgtd2gdJeSpbl3iaw6U9p7C4BvrYa402PdK4yboDllG4WtyV7tt/lgUwo 59pkYdqiRELyYoznOl6CkS/a0kBwBYlPEHcRVB3DqVdgsL914B2eLp+iU5EDH/O9FZlc7d11RvLYc pQPPLHnRrtzVAt/41EoZ2DCAWhT6Y9MFRx/u9LDtOlXh1a0jxK4gt7SQbGmtDuxWn2NhcNX40dwCm OuICa23QkhyQGTDqHisMqk6a5sDnoTItUkjtyp+fgxkv9XX09+wqH8Iq3xscAEADDgab9PLcKn60z iag8/awQ==; Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by desiato.infradead.org with esmtps (Exim 4.99.2 #2 (Red Hat Linux)) id 1x3xGw-0000000HZaW-2aLQ for linux-amlogic@lists.infradead.org; Tue, 08 Sep 2026 14:58:08 +0000 Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 688Ej3Bv2639587 for ; Tue, 8 Sep 2026 14:58:05 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= seUOJdBEpaaK2UmSYK4aVK9u6IT6FpqMeeYKLF/OBic=; b=OX8DgjxHIzM1T1JJ LsJn3a+0v6E1Nn3El6WzTEIPiTBZIkN1jiSzHXMW9puHwPTibwRHhohuK+IYB+L3 6hv9Ffcv09Tj68PcK6t03UXQSUjZykW9D90A4CblNMe1iE9HbHzEle4CyEgKTqgF y1hHd0F1yJOCmbXBmIXBPjZw/vfKlNf4ivwmHP8BJ78BfABPUqVD8Kq9DhoT00dg tcvYusAFp4atnM829GtYqGVqz1/IEZnJVjvOudXDjsfiFaE0lbiZno87R3VS9o0o 00ln7PbWBFjOrRtcL6125WMatVYXpoYO4Od3Yd0z5DEEqYJMocdHGmPUwFv2E0y+ 4UGCKg== Received: from mail-vs1-f69.google.com (mail-vs1-f69.google.com [209.85.217.69]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4gjjvugjw5-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 08 Sep 2026 14:58:05 +0000 (GMT) Received: by mail-vs1-f69.google.com with SMTP id ada2fe7eead31-73858d44c8aso1004697137.0 for ; Tue, 08 Sep 2026 07:58:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1788879484; x=1789484284; darn=lists.infradead.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=seUOJdBEpaaK2UmSYK4aVK9u6IT6FpqMeeYKLF/OBic=; b=MtwaPJP31pqjHPt9s1Q/mdtp4U/7l/tPEF5wk2yT1KdOKHDLk0joIo/Xz6AS533sv4 DuuwrNML5psgAuqz3IpRRay8pu9Z+xVDUnwZL9G/de19jnAisqgCrWYDN0DbRDuIfN1W VLd1S+UP1KrCzqKBfjA4Ev9nn+fEC6QGXBNgZYo4TcQI9b4sHqYP3gL+luphuIEIHaD9 1ec9qlawsIz27eK1atZZMenKFuMd/Xcl82o4juQxqnDb8lVntg0d1KkhSJLol0wrkLU7 q074Fp1gVxFVAnVKAxJRB+ixG3S3K3slES7T5aVHzqOASTtvOXbpZHFoU7Nil6wGRFUz dudw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788879484; x=1789484284; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=seUOJdBEpaaK2UmSYK4aVK9u6IT6FpqMeeYKLF/OBic=; b=HFcGW8xTYDUv5e9R905Ttwd3O3eS1o8oAlwYE+iwC9iFl0CArSpt3wuqrW7g+N2e4w telP9UYPJjkuE1H1odnUq4qCSObwbagnX/OXqR2XuA480R6D03Uw360USFZ0/Lo+yAD5 EWUyHSZERTM7zWw6aFcYBhhppVCLdWRi0xjQ/U4DDjweMF7mgX0SM+f1t9i6McLMusME PKx8+d7sy8CziCQy3vKxkuQ7wWcORcP+vPEBk0weGWwHUZGqAwGAViyJLyo+/65f8WXX Ia5l41mdB6QEBiOHIgf2UJHY8OjjmXvXZwQ90+uT2RP7kveQT1JgvT9AUDoeHXbII1HU PvMA== X-Forwarded-Encrypted: i=1; AKwUvBwSCArzGzc8qP6Ido0meLpugIBvLGGrSiJd/ncwNrkg/RDDImvj4HesuAgKFXOm/WOxbgXPbrjpMvOiZ4oi@lists.infradead.org X-Gm-Message-State: AFuF++m3OyxHZbUvMZvIZ5tX1Mb7M3ONZQcWIGIShRxaR/amE2Daler9 pzC08sGK13VBwMJuVLz6NjmMGnDQ0d3u5YqF4vDGLdPreQI8r7jdYrTtyFHxN+TQw6njEPRHgXf tc4MBaGXce1d2LMon1+UlOIgaqKrldrb1jVigj4o5b2eWXWW9DV1Ma1MNkSuEiEBG6p8hf0fSgA == X-Gm-Gg: AYBFou3IMOEPoDBOgb3sYZOzi9ODb0WXrHbSCeHnCk4gYZQS3EdDP8OeIM8pjWja/Ld ED+xa+xo41K19r9nrX0LmFtqb+KJS/eC3o6ff7vQdnoC6Bez5HeLJcil+x6Pmuc12W67N6yEvMP hOOMh3ktyjm7YOVUBdGEnc+sPLS/hsRRmL5vnDAWkNt4HxZ0tNPqitqmVlQ9vXGbBQuRS2a7lMA xm1/FvlaXd15JcTNJqZbxLc+xb4y9wD4YePld3a1EwaJpRFHan6wIpl4BGS83B0m9KjDXu6/w/7 YZwiiJjnIzA9jhjxAhJYf9+aeAyUOyxQGkjLXgh2WHW1HQINeupvOeQeO/7hRrWZKq9PTrRKN+9 xZ5cGSj9aRDYe9LDKhvGMQ70DVgts X-Received: by 2002:a05:6102:f83:b0:784:94dd:5389 with SMTP id ada2fe7eead31-78a4a9ae110mr10773709137.13.1788879484395; Tue, 08 Sep 2026 07:58:04 -0700 (PDT) X-Received: by 2002:a05:6102:f83:b0:784:94dd:5389 with SMTP id ada2fe7eead31-78a4a9ae110mr10773647137.13.1788879483779; Tue, 08 Sep 2026 07:58:03 -0700 (PDT) Received: from brgl-qcom.local ([2a01:cb1d:dc:7e00:79a2:f118:df09:fe51]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-485958f1493sm25191276f8f.37.2026.09.08.07.58.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Sep 2026 07:58:02 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 08 Sep 2026 16:57:22 +0200 Subject: [PATCH net-next v14 03/10] phy: qcom: add the SGMII SerDes PHY driver for SCMI systems MIME-Version: 1.0 Message-Id: <20260908-qcom-sa8255p-emac-v14-3-ec212b747a7d@oss.qualcomm.com> References: <20260908-qcom-sa8255p-emac-v14-0-ec212b747a7d@oss.qualcomm.com> In-Reply-To: <20260908-qcom-sa8255p-emac-v14-0-ec212b747a7d@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Vinod Koul , Giuseppe Cavallaro , Chen-Yu Tsai , Jernej Skrabec , Neil Armstrong , Kevin Hilman , Jerome Brunet , Shawn Guo , Fabio Estevam , Jan Petrous , s32@nxp.com, Mohd Ayaan Anwar , Romain Gantois , Geert Uytterhoeven , Magnus Damm , Maxime Ripard , Christophe Roullier , Bartosz Golaszewski , Radu Rendec Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Drew Fustini , linux-sunxi@lists.linux.dev, linux-amlogic@lists.infradead.org, linux-mips@vger.kernel.org, imx@lists.linux.dev, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, brgl@kernel.org, Bartosz Golaszewski , Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5706; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=qHUlRmmCEFH0pekvHNTdxOkuBUAknchAtPGzvZSdAVA=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBqoCJpUSAwXwYqyImVUA8IHz/qZBphfJZmEFMBI m2ZW2y5mMiJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCaqAiaQAKCRAFnS7L/zaE w2PhD/0as5tliI1sEyOitt3o+EQ4kh5yKkHvigZwetzwKxwOQu6f+gUa12Gh+Ov7edkBjpD8a3W iMbZlHnG5eKnGJphgRMMitIfM6T1OqsPv3r/O8N1svmU7Rnjt9BKaKy2gFDaSMZlQaDjydAgS6j JYGoCCNyQ+zCdEngS0hE6Zvmnr4rSRrbfCDwvRzmtSBQdHIb+EObCBfDhDX7BBvh62DlJ72wZ4L yvB9fnZW6tAxBufOOQHqH/V5a/dNykdyNGGZAUrx282uTWyK3n1U0h6I6D+/arZmPVEcA+0xZsc 7IZ/11r8niZPcNCiTmwZYaDEPtMje17Lje0Mr60FjT/v2RDxI2BBrbqbN6/TRLvZUiOTtPevFNZ Z/W6AynG1j/kuo+oHLCYJ8lAKTu/qO1pMySExNkmWs9WffnDG6MjTRvOkZbuYPf+aJS8SFURcwO 8k5H7KcrHhWLZUEC5iJR7ISWqq4mzZKosEGkxYHgjeN92zl1TGoaUT3PcrxO7mEmwRB1CGLPGQI nmnOTQGLAg/g6kGs8U2xA4zsmXCtvgWv8GpJu0oyKlpfr4r7Q3fR9j93fekRA0I/CXonYf69tsW 3YOfCWEAIgWWJ0OkY1gq6xWcUoMPC/21vMVDfEHSUNAZrZUct1D9thR41qNiPt5fNoLohNF1w0y HAXMirb7OBtMCBQ== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-GUID: HLmA2ViN4nXr6Te_w33N2iNJtxGILfru X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA4MDE2MSBTYWx0ZWRfX9LVeH6VwUTwQ 30gSGPt7OCj/L02KcE0TANdcOL0Am3ClF5RsZhsegC5asL29XM4n71bLu7rTcudD9zq+//nL8gY s6O6XQTslwJo2X+aWp6Rl3Mx5iIRmQz4y7uJdo/iTlt3snAknOvm8LruZrxhoJokY+ERbmMaJj0 r0RX2fr+Dd7EUbPq2v3Y2+Hm5xNOk9NZycS6v1ArQwe35AIvtJnnQVFzPziOms//a6P3cznLpLT qTvZkPR2Yuzalci2a5kmtk+HrnYwkN5RdSbbsHpUi70RYq2HRCKFt1hWZ4WXCNQ2QSYYIweFl7q MR/4GX1d/wc/tHpDfhWepygHSAGSx2TpzDQl28D7e3sdqS76nuK2qoaXMO0g1lNOPCWAnZINIZ7 G6FDCiilVaYN3zK9kYu/rJsVzU4gyUHw0/SHB69Y0tfAQlwOrGnbFd/R6k+qpXJt2LmmyIpxBuN Y9yVl3a0afRYQB/Nylg== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA4MDE2MSBTYWx0ZWRfX8uj05oJ8XhRa 9PHfKoKP17FbFpda1FVf62nN3uRK72l4vGnaB1bRZCDAnKgB5RqBFlHq4x0YPFIQqbFlz9MhzUe uZ4SZY5VgGOdE4L097hvKmwdZvzGfqg= X-Proofpoint-ORIG-GUID: HLmA2ViN4nXr6Te_w33N2iNJtxGILfru X-Authority-Analysis: v=2.4 cv=X8hi7mTe c=1 sm=1 tr=0 ts=6aa0227d cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=_Lfrdvl5uC9KR1EAoRcA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-08_03,2026-09-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 spamscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 impostorscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609080161 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260908_155807_006062_09CCFCA2 X-CRM114-Status: GOOD ( 23.56 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Implement support for the firmware-managed SGMII/SerDes PHY present on Qualcomm platforms. Do this as a separate driver from the HLOS-managed variant as they don't share almost any code. Signed-off-by: Bartosz Golaszewski --- drivers/phy/qualcomm/Kconfig | 11 +++ drivers/phy/qualcomm/Makefile | 1 + drivers/phy/qualcomm/phy-qcom-sgmii-eth-scmi.c | 115 +++++++++++++++++++++++++ 3 files changed, 127 insertions(+) diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig index d910a5d1a1ac3ad77599e72c3f4a3b2aebd02dbf..677662f642e42f6ed969fa281d161ff185be9ae4 100644 --- a/drivers/phy/qualcomm/Kconfig +++ b/drivers/phy/qualcomm/Kconfig @@ -242,3 +242,14 @@ config PHY_QCOM_SGMII_ETH help Enable this to support the internal SerDes/SGMII PHY on various Qualcomm chipsets. + +config PHY_QCOM_SGMII_ETH_SCMI + tristate "Qualcomm DWMAC SGMII SerDes/PHY driver (firmware managed)" + depends on OF && (ARCH_QCOM || COMPILE_TEST) + select GENERIC_PHY + select PM + select PM_GENERIC_DOMAINS + help + Enable this to support the internal SerDes/SGMII PHY on Qualcomm + chipsets where the SerDes hardware (clocks and registers) is owned + by the firmware. diff --git a/drivers/phy/qualcomm/Makefile b/drivers/phy/qualcomm/Makefile index 8bf887d58ee4a65687216dd91a6592da7941ace2..4972009b217e39ad3d19300e5b7dede4e88feca4 100644 --- a/drivers/phy/qualcomm/Makefile +++ b/drivers/phy/qualcomm/Makefile @@ -26,3 +26,4 @@ obj-$(CONFIG_PHY_QCOM_USB_SS) += phy-qcom-usb-ss.o obj-$(CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2)+= phy-qcom-snps-femto-v2.o obj-$(CONFIG_PHY_QCOM_IPQ806X_USB) += phy-qcom-ipq806x-usb.o obj-$(CONFIG_PHY_QCOM_SGMII_ETH) += phy-qcom-sgmii-eth.o +obj-$(CONFIG_PHY_QCOM_SGMII_ETH_SCMI) += phy-qcom-sgmii-eth-scmi.o diff --git a/drivers/phy/qualcomm/phy-qcom-sgmii-eth-scmi.c b/drivers/phy/qualcomm/phy-qcom-sgmii-eth-scmi.c new file mode 100644 index 0000000000000000000000000000000000000000..ae961975dcd87555d458ca491092622366e58127 --- /dev/null +++ b/drivers/phy/qualcomm/phy-qcom-sgmii-eth-scmi.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + * + * Firmware-managed variant of the Qualcomm DWMAC SGMII SerDes/PHY driver. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int qcom_dwmac_sgmii_phy_scmi_validate(struct phy *phy, enum phy_mode mode, + int submode, + union phy_configure_opts *opts) +{ + if (mode != PHY_MODE_ETHERNET) + return -EINVAL; + + switch (submode) { + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: + return 0; + default: + return -EINVAL; + } +} + +static int qcom_dwmac_sgmii_phy_scmi_set_mode(struct phy *phy, enum phy_mode mode, + int submode) +{ + struct device *dev = phy->dev.parent; + unsigned int perf_state; + int ret; + + ret = qcom_dwmac_sgmii_phy_scmi_validate(phy, mode, submode, NULL); + if (ret) + return ret; + + perf_state = (submode == PHY_INTERFACE_MODE_2500BASEX) ? + SPEED_2500 : SPEED_1000; + + return dev_pm_genpd_set_performance_state(dev, perf_state); +} + +static const struct phy_ops qcom_dwmac_sgmii_phy_scmi_ops = { + .set_mode = qcom_dwmac_sgmii_phy_scmi_set_mode, + .validate = qcom_dwmac_sgmii_phy_scmi_validate, + .owner = THIS_MODULE, +}; + +static void qcom_dwmac_sgmii_phy_scmi_runtime_disable(void *data) +{ + struct device *dev = data; + + pm_runtime_disable(dev); +} + +static int qcom_dwmac_sgmii_phy_scmi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct phy_provider *provider; + struct phy *phy; + int ret; + + /* + * Enable runtime PM on the provider before creating the PHY so that the + * PHY core enables runtime PM on the PHY device too. The single SCMI + * power domain has already been attached to this device by the driver + * core, so runtime PM votes propagate to firmware through the genpd + * device link. No register or clock access is done here - firmware owns + * the SerDes. + */ + pm_runtime_enable(dev); + + ret = devm_add_action_or_reset(dev, qcom_dwmac_sgmii_phy_scmi_runtime_disable, dev); + if (ret) + return ret; + + phy = devm_phy_create(dev, NULL, &qcom_dwmac_sgmii_phy_scmi_ops); + if (IS_ERR(phy)) + return dev_err_probe(dev, PTR_ERR(phy), "failed to create the phy\n"); + + provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(provider)) + return dev_err_probe(dev, PTR_ERR(provider), + "failed to register the PHY provider\n"); + + return 0; +} + +static const struct of_device_id qcom_dwmac_sgmii_phy_scmi_of_match[] = { + { .compatible = "qcom,sa8255p-dwmac-sgmii-phy" }, + { } +}; +MODULE_DEVICE_TABLE(of, qcom_dwmac_sgmii_phy_scmi_of_match); + +static struct platform_driver qcom_dwmac_sgmii_phy_scmi_driver = { + .probe = qcom_dwmac_sgmii_phy_scmi_probe, + .driver = { + .name = "qcom-dwmac-sgmii-phy-scmi", + .of_match_table = qcom_dwmac_sgmii_phy_scmi_of_match, + }, +}; +module_platform_driver(qcom_dwmac_sgmii_phy_scmi_driver); + +MODULE_DESCRIPTION("Qualcomm DWMAC SGMII PHY driver (firmware managed)"); +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_LICENSE("GPL"); -- 2.47.3 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic