From nobody Wed Apr 15 12:58:33 2026 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 D506E3859FD for ; Wed, 4 Mar 2026 08:22:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772612523; cv=none; b=LnDwc2hz/gyKSs0Da2CX2Y3JJMxn5rgHYo80GKHBs0gnVhm94jetn7qmK143Bek+MtepdKgiYouYivoRHHqIMM10pLYI9cS8HyaE+v76mvFPj+tWlVgM2U9rY3QYjgDhgibCv7/p4/j1gEdQCNw50YgWIhWt7XTSBHlAFGNEdmI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772612523; c=relaxed/simple; bh=J4iNJP7fooS2FBjy7epanSIk1L/eL4p/+6UyF/qZDag=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rLtdpRLI24EXFXmSRxYtimUl9oEiF/lmN/V6TtjUSppnjv2Ob/7chHUHA20aFgF88I2fisVjYU5+UZq1HlyuDvjwqw2zwulmBk9mYAvOaKZkFura5zknaGzSfZCDhjyOkSDMWbZR8uno5xXNG2BgHARrlsI6vYH4czVgD6fVAIg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=K6RxHpPy; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=duuAb1UQ; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="K6RxHpPy"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="duuAb1UQ" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6245SwkR1678348 for ; Wed, 4 Mar 2026 08:22:01 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= uIlZLMHi3cNBVLJWqwerj0OJ6veqEBRgHl80VQQ/teU=; b=K6RxHpPyVlrE/x66 Cxy3hR5OQqMFjWYo4DMEYlFSbJBdsuz4330BmVy3AtFKiBRoYzwWmBiicc1mnwDu rJsTdgZWW5qWCVbFnG4fmq3Fy/ewLcx/I/VEoefdrgPMQb/xUYHOGTmFLpO1kuy9 9vNtxOBC65cpxTZrhNx9ViQl07GBP0c8UM/NfmMcYaiDwjUMw/yIco8/Dzd9dHR2 HLco3woVAdlg748FrltbKEnSExVAvVql2NUfNhAFmhmPCQyzU8YKy65iuP+NKZjT 4JHd32bGqGr1vi/A4KmaofjE/cCBnzcN54WHFIfwVLXFka7pA17eBenLposkrOlA JHL0Dw== Received: from mail-oo1-f69.google.com (mail-oo1-f69.google.com [209.85.161.69]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4cp73ha0cb-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 04 Mar 2026 08:22:01 +0000 (GMT) Received: by mail-oo1-f69.google.com with SMTP id 006d021491bc7-67999892f00so129900636eaf.3 for ; Wed, 04 Mar 2026 00:22:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1772612520; x=1773217320; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=uIlZLMHi3cNBVLJWqwerj0OJ6veqEBRgHl80VQQ/teU=; b=duuAb1UQfmaY2c0kh5kSaZ+1+q53up7xooIPUTTeJVcitHOOJ6b0oFbwPKe1AUz4p2 e2TTk0j7Va7Op87TZa1/kTnAYcK127dD+gGnea2SmKVjJZKJq4ppgCXgtGo3z5RXXQrm hyZj7D5I46mNDDAg2hhTAqsvVWEhzAZ80H/RiEimmZPN8e4JqJJd7VoGRGRw2kONS2NQ aKEL/o8nYoZ9/WqvnqVTXFbUw8nRO6eambtI5ywoyql62NLM3aGMveCIaIBmZ98Vj58M qykR1Eum4DfaR6NNIdvoAsqye55Ml85/vAsulUQ5aYaJ8A/U6A75vl/LG3K6oVWBppva 3IEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772612520; x=1773217320; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=uIlZLMHi3cNBVLJWqwerj0OJ6veqEBRgHl80VQQ/teU=; b=XzUIXhlLi2aMB6QSSE/FqJr7ev9prk6er+NSL6Rp1ZwSvVZbwFEhVppK/Bv9D4i7nk dqUd4Pyb3v8NT4ytMpM1SHZITuIcvZrX9SewvfyapifIq7GL3MZ1G2Jp/jT8q3fKh9uZ IHRPi8KISBB1Kfxs42HsqWyQnAMQJmqmcAAcKEiFX9FqtQvRY2+p1kblyvTG6Y9TKQoI KhPgyBoaLPPQGD7u5D8IikRatvoATVILV7Ex6tmq4j7DGj+QodsFL+ezSAxP/Yh54+YC qf3ijKok+N+uDP7+v2/XKAJSW9vNM7jyAaTR/kTVDbXo5gJcDOvIkz7eY1K5958Qvequ qNBA== X-Forwarded-Encrypted: i=1; AJvYcCVkiLPaTDqjcRcaFO0Iv5eLlyxnh7y9ICQdYGmL6xdNPjq/u66UsHXXjd8hX3J80cphhrNgZDmFA2gIuWU=@vger.kernel.org X-Gm-Message-State: AOJu0Yw7Qm2274ANZz+XbUBwxebn+fPTuXXeAJkj1BmtWDaFgyJhr+JY KRsOKv0zMcWsP0lmMvj8A487TLhxqs7ENjdGdL382AUGdRRnQMD4xoIMOIgHVONZTa0FBoolNYk jWpNl7jSFsmIbSW7CoKBHk2gjC/MVAVCnKJ+uJSMh+aIufLys477RyQKbjoMygLVmk2w= X-Gm-Gg: ATEYQzyrdWE49TuGb392uxwGGK43bfkxGldE1eiliKz6WsoSTuoldeMIIetQJq/amqx ivavfiZd54qjdx0S4KaipGfI+0g1MzUiGe/TB/SEb3CpIWgKix/6GSMa6c9QZBBLZj8HOCp/y4O PbUQgm8cWxfg4QVcTFQESxT2i46Jl5jx+TqYiT++YD+RT3fA+QhrP7YKRkZk2oHvR0Xv8mTcECv w7WIcaTWNaIgnzn/k1FGdUcAccM7FD5YLOMTmYldr7BFMPdby0a3LFrK7t4d7A3GWdkbMxiWiln v4v5wBF3CbWJNP6ysn+ccSjiskYt3uCn0VQYF1TFuv6ktxwv1sAu2UqPzEPnHT0/hJgNicXnEtM xo8cdwd/cEefKR/w2WOI98c3M8e7Qul4SA2ji0G4QjUAbR8JKbU+twhB6D3VeKEP6E+Fl X-Received: by 2002:a05:6820:228e:b0:663:364:674f with SMTP id 006d021491bc7-67b176e9755mr800765eaf.1.1772612520507; Wed, 04 Mar 2026 00:22:00 -0800 (PST) X-Received: by 2002:a05:6820:228e:b0:663:364:674f with SMTP id 006d021491bc7-67b176e9755mr800749eaf.1.1772612520151; Wed, 04 Mar 2026 00:22:00 -0800 (PST) Received: from hu-qianyu-lv.qualcomm.com (Global_NAT1.qualcomm.com. [129.46.96.20]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-4160d26d9absm18006952fac.16.2026.03.04.00.21.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 00:21:59 -0800 (PST) From: Qiang Yu Date: Wed, 04 Mar 2026 00:21:56 -0800 Subject: [PATCH 2/5] phy: qcom: qmp-pcie: Add multiple power-domains support 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: quoted-printable Message-Id: <20260304-glymur_gen5x8_phy-v1-2-849e9a72e125@oss.qualcomm.com> References: <20260304-glymur_gen5x8_phy-v1-0-849e9a72e125@oss.qualcomm.com> In-Reply-To: <20260304-glymur_gen5x8_phy-v1-0-849e9a72e125@oss.qualcomm.com> To: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Qiang Yu X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772612517; l=2482; i=qiang.yu@oss.qualcomm.com; s=20250513; h=from:subject:message-id; bh=J4iNJP7fooS2FBjy7epanSIk1L/eL4p/+6UyF/qZDag=; b=hXW7/3qZDw8ZcuCNj5DNMwpqd5gvzLVpDYhDMMiUziMx8Ux6j2NnYe10xoZtSisok7Uy9UoMu RzCC64PxoX0D2heExusm2P62gAB7wKXzv/jEJ9PDGpPsyaZSX4jt47u X-Developer-Key: i=qiang.yu@oss.qualcomm.com; a=ed25519; pk=Rr94t+fykoieF1ngg/bXxEfr5KoQxeXPtYxM8fBQTAI= X-Proofpoint-GUID: WLJNMN2pbjDyr7sBR8ZXtW-UayOEYYqW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA0MDA2NCBTYWx0ZWRfX8FZWIevYrsgj F6GMqvpYDUSo/kI9AEom2BYIyZ7MMsLl9MVQ+siULrsK0b5h9A+eIMLII+lym5HQmlMenUka6vY mp3f2m53+dSGDONlhOUR27k3nQFLp5HIiT/iVj4Wc4KfMGyCs9JxPUCE5k3uiUrxbJYRoBRg19X vTY/pOYK6anJhCxkS/gwlbBfg2EUYOCPS5SUVhF0YBWpODl4ZXefwt9czP7X/dwPJf2YaGt15PF pNbB0OAkkEM/09ObquE5YOi4JHjrMUZHAAN3hFfqL2iX/Xzf0RLj/iEu7hYNlwWAai3vq7BmEQv n25SPYCCVEXvllMzMGXF9gLcJHy0FkYGAQ84gnP5YuPKdcbDAD+nUhRL3GwK2H20SFHQIoGL7Jo tggcG/DYkmDbKFx1QePKcST/BwKikBzyrXmH/JAQIX9hGEteMWMYSonNLTLpvjYfaYYfJXKsuoV lV+P9j/Lb8DPo7v14Qw== X-Proofpoint-ORIG-GUID: WLJNMN2pbjDyr7sBR8ZXtW-UayOEYYqW X-Authority-Analysis: v=2.4 cv=BpWQAIX5 c=1 sm=1 tr=0 ts=69a7eba9 cx=c_pps a=lVi5GcDxkcJcfCmEjVJoaw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=eu5IZVYEi8O4nexjJlAA:9 a=QEXdDO2ut3YA:10 a=rBiNkAWo9uy_4UTK5NWh:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-04_04,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 bulkscore=0 adultscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603040064 The Glymur SoC's 3rd PCIe instance supports 8-lane mode using two PHYs in a bifurcated configuration. Each PHY has its own power domain (phy_gdsc) that must be powered on before initialization per hardware requirements. Current PHY power management assumes a single power domain per PHY, preventing proper setup for this dual-PHY scenario. Add support for multiple power domains by using devm_pm_domain_attach_list() to attach power domains manually, while maintaining compatibility with single power domain PHYs. Enable runtime PM to allow power domain control when the PCIe driver calls phy_power_on/phy_power_off: - Single power domain: QMP PHY platform device directly attaches to power domain and controls it during runtime resume/suspend - Multiple power domains: devm_pm_domain_attach_list() creates virtual devices as power domain suppliers, linked to the QMP PHY platform device as consumer This ensures power domains are properly attached and turned on/off for both single and multiple power domain configurations. Signed-off-by: Qiang Yu --- drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcom= m/phy-qcom-qmp-pcie.c index fed2fc9bb31108d51f88d34f3379c7744681f485..7369c291be51aa1ad7a330459dc= b857f5a1988f6 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -3334,6 +3335,8 @@ struct qmp_pcie { =20 struct clk_fixed_rate pipe_clk_fixed; struct clk_fixed_rate aux_clk_fixed; + + struct dev_pm_domain_list *pd_list; }; =20 static bool qphy_checkbits(const void __iomem *base, u32 offset, u32 val) @@ -5348,6 +5351,16 @@ static int qmp_pcie_probe(struct platform_device *pd= ev) WARN_ON_ONCE(!qmp->cfg->pwrdn_ctrl); WARN_ON_ONCE(!qmp->cfg->phy_status); =20 + ret =3D devm_pm_domain_attach_list(dev, NULL, &qmp->pd_list); + if (ret < 0 && ret !=3D -EEXIST) { + dev_err(dev, "Failed to attach power domain\n"); + return ret; + } + + ret =3D devm_pm_runtime_enable(dev); + if (ret) + return ret; + ret =3D qmp_pcie_clk_init(qmp); if (ret) return ret; --=20 2.34.1