From mboxrd@z Thu Jan 1 00:00:00 1970 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 D86363CC327 for ; Mon, 20 Jul 2026 08:04:25 +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=1784534667; cv=none; b=X0V3/tJpkj8DPJP7ITv9afyporsyvKiqrRQhlSKQWQomQvyVUmcIfqROvCOeiDGHzkrR2ts/9gQILpRotSZxT74hX+sVrUvRSChTXDEgbru1YzWzLMGGh4+j/lH5Xic2w5Bm9M4S9PdLyc3ClKCDLeN83h1YpbpUoz5o0my3QAk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784534667; c=relaxed/simple; bh=U8KvuwhbRpvu6yox7283/96nA65nj+Pg5RSb19E+fVU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WYmBDHqTbQUGpgmnU49ZYkkS8fTyS0/7h4/lZNTrZWKDn++VZlQzH3WX5ngogJBV29YDXyd3hUx3bYfRNCBPS5u8NcFVcEulkP5YTMZuC7HZ77sJhvLo1BgX/ngi+//LvFxzxDh9rAiJm3xGmniKEYnFCb8sBfpc9m3XNO5WRSI= 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=SEW7l6PN; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=RaVBE1eJ; 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="SEW7l6PN"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="RaVBE1eJ" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 66K6RWSU1420204 for ; Mon, 20 Jul 2026 08:04:25 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= NlR6oxj2RqcNvssqISSxd1MdkBoRpFWAjkKBrBG/ulw=; b=SEW7l6PNW4mzQ8Fz LMfkWiQQX+926LWkPHT9O40TIIhZ0FaQ+GMiOJTrA1/r7s3wAkURYbmKBT9QtcWX Dhl686U6TSQcNEHw7apYtL86ChI41II2DboJI0QujoN6fy517Y8j5HPrgPJ+SF7c 6YxnZ9bIQ7gMKeoDIVLRXm5QB+Ujk5rCugEfIObx1c+N8AsMK+n5BhSxKS3LTYyE h5+Ihivtt/h/Uvl/pIRi9PFQNXMMCSZPziM7aTtDr6ALKBgEVo2EHnzJ7OBbmGeC QMkzSSE/W0QNkBd2aOSGcpbq9Hratd2dIczYQ0TEidO3K820YERZABSvm6hEp9Gn 53UO8A== Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4fg2s7w1b9-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 20 Jul 2026 08:04:25 +0000 (GMT) Received: by mail-qt1-f197.google.com with SMTP id d75a77b69052e-51bec738909so109246981cf.1 for ; Mon, 20 Jul 2026 01:04:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1784534664; x=1785139464; darn=vger.kernel.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=NlR6oxj2RqcNvssqISSxd1MdkBoRpFWAjkKBrBG/ulw=; b=RaVBE1eJ1H0C7QjxoUIUpZx3FvkGbedSucrBCIQFoORflrFLm2MB8UTmrCu1AqxLLI MsBtiuzPDxwevfKwKGeg+n2/WT392J5fd7Eq7dcpWm9F1/huNMcvFKY2cEiv8BzOwPBd TKzQ+v71oxukMVvlAJO/5oDIxTcl7bHPcI13EueqmbeKapn/JsybdhlvmerPYXrDZJKm 5QLvKIqBZmMKHxG56BBLztnMCWdPD8zosEHAh4aFZDQupDrcRUN8BpyeJjR3wtM/AXNQ yguUYDI2V0r7RE8Loy0XA41JIeKB1eChmlxmSiiiQQxerwQskItCrrf4GLYmzvbgpBHT Zmow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784534664; x=1785139464; 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=NlR6oxj2RqcNvssqISSxd1MdkBoRpFWAjkKBrBG/ulw=; b=mE+es0eyJhEwShX5QmVu+FpxUc0cLpKqw9Dfp1Qol3VYdubOgNbvO4eZG412eFiyZs +y2a3ZjVlYEC4pnuH91tdurBWKTyVwBbUlJtFqE62NvXd7Ps8Nr7jF1d9TZMIlsoIzvJ 9Ju9I1Cpct6Z86yEGbC7KTeB9TG7scMymPxpFb3WdjjyjAxAFVPq1fn+ApyK/2GjdyB/ KoWoCqK6zP0mJG+wDcl44H42H7HPt3J025J0RQ+4LgtG1GREdPRV0ApQk1qMGWblEH/T NU4ww7C08TicJlZgJysqcYXt/8sUXI7sobJGCiSomWKHDDRutQHeogs5dHYA0W5fw1gC nJmw== X-Forwarded-Encrypted: i=1; AHgh+RoyGn3wHpy8NNcUDCVtoEctxKxti4Pp8o2fbHHXthyPp80snK/Ibd3dA6bhhpxxtlnsISz6DX8Hp0s6AG0=@vger.kernel.org X-Gm-Message-State: AOJu0Ywg3LpoF9SG2qFloApcveVYRSU0b5+cPNulvOZOWXIldWUgCJRM 7s0LwafXif2FT1cPACGQG++wi+5+t1bM7d9x+Pp1ef92Bc9xsiIii7/3KUsBWkma7usttXgH/ko ayze1qtZkuXRQtYbFX/btKPRZOs4DjAqrwcx/cR03wu7GgyXBPO4R5RQeJOD97XAUDwo= X-Gm-Gg: AfdE7cm7S2lIbx57lgr86kiWGdKQif36bFI6s9btrPp09zHAXbw8kNb5XiMgJQEMMd2 E2IePTTgWn1PcPc1vIfqLGJz8wKSOo6j8AW6c7XA6v1PlcBdtZJY2FT6il28Hac3BU14JDZOXSd qa9q5j3J/W1+9Rtsg3w2hCGIKvP4/s9jYInENxHcfywnOnLr/Xewnt5GvX88fhujdxV+6n/JFYr gl59+d0Afjhi28vg+JkZX+WNiaQxYQtHJWCGIWd19dr44ExiPNoyjb0LknTYcxwxP/r+crG8oC7 PMmu0JynecSYbphyeh+MtoRvg4FrBDiyqiJN8pEL80YraVzJnBjcOuhaPor9CU1O5pWcOJCNtNE f4vN2L7t3CeJM4mBINXmbeTFjf+g4bMs4fH2XF7LR73knpCAg/q6Hx2olxxu8ei+2L1Y3Eynaft rYuvERXM8MNgWqDfNaf7NIcRm4+Xp0WXirJ9CrwlyLvrVBMSeG8b0= X-Received: by 2002:ac8:7d0c:0:b0:51c:7b12:5fdd with SMTP id d75a77b69052e-5213ed77366mr122378871cf.73.1784534664222; Mon, 20 Jul 2026 01:04:24 -0700 (PDT) X-Received: by 2002:ac8:7d0c:0:b0:51c:7b12:5fdd with SMTP id d75a77b69052e-5213ed77366mr122378671cf.73.1784534663794; Mon, 20 Jul 2026 01:04:23 -0700 (PDT) Received: from QCOM-eG0v1AUPpu.na.qualcomm.com ([2a01:e0a:830:450:751c:d61c:c91:60dd]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e7000c3e2sm4256542a12.30.2026.07.20.01.04.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 01:04:22 -0700 (PDT) From: Loic Poulain Date: Mon, 20 Jul 2026 10:04:10 +0200 Subject: [PATCH v5 08/11] Bluetooth: hci_qca: Support QCA2066 on M.2 connector via pwrseq 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: 7bit Message-Id: <20260720-monza-wireless-v5-8-69ec6743543c@oss.qualcomm.com> References: <20260720-monza-wireless-v5-0-69ec6743543c@oss.qualcomm.com> In-Reply-To: <20260720-monza-wireless-v5-0-69ec6743543c@oss.qualcomm.com> To: Manivannan Sadhasivam , Bartosz Golaszewski , Marcel Holtmann , Luiz Augusto von Dentz , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, devicetree@vger.kernel.org, Manivannan Sadhasivam , Loic Poulain X-Mailer: b4 0.14.2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDA4OCBTYWx0ZWRfXx0S4lgBj8yvD 1gACY2YqPtDavoU9bllyDbVga9RoVaoTVszxPfW6LSTgerZMzPsiQ84f/PkS/8tSYXFPQn9M6s+ ksF7CzUOTHYinTQ2CxkrvPalPDkdnNFhff9nelM8XtgrR37KF6EIljqVTqPE/BBq1Qc7RpJ1vPq pEv3goIccPQCiLzV93UtkQgu6GuIHumM7CEg2w6umf7NomEEBHAzsq4FZ1JAFSEeQNqmiFRulzH ULuk3iWrT/5WhY6K0StAaDS1IfJ9dyf2yQD4O3x92E/Gf0hmPiuCVnI5d9q/l5ddgqGW3zwTB/m 5Sk5t+XZ1K2VeWUsEvsR6uXGG5EgBu+YKGRlXOk03IQ0G27OD8fALtJijo7Y0kE9uqSdxVU4Sbe SMVOO4t6D0SklfiUJ6NBap2wRokUacWiPeBwBdbihnu5YDDk2WEE1eBoUB1wdRMLjBE+J5kXgA0 PjDvxrpCsPfVFO/J8tQ== X-Authority-Analysis: v=2.4 cv=eKsjSnp1 c=1 sm=1 tr=0 ts=6a5dd689 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=reVw4oyKNVL6WbIJD7YA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-ORIG-GUID: iASZpji5ZatndovYXpEKLx1xFXxvnko1 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDA4OCBTYWx0ZWRfX0HfDQ5uKBVCN cNBx2/kll+80x4OMXdcoWybSH2CAiOUuX/47nypgaDP5E0Sy6k4+gIGFwwIu7weD6qTK4itiI/x KeLCbhp29+8/HI0E2Fwk1+TN6g0vrEM= X-Proofpoint-GUID: iASZpji5ZatndovYXpEKLx1xFXxvnko1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-20_01,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 impostorscore=0 malwarescore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200088 For QCA2066 (and other QCA chips) on M.2 connectors, the UART enable is controlled by the W_DISABLE2# signal managed by the pcie-m2 power sequencer rather than a dedicated BT enable GPIO. When the serdev controller has an OF graph (indicating it is connected to an M.2 connector), acquire the 'uart' pwrseq target from the connector's power sequencer and use it to control BT power instead of the bt-enable GPIO. This is factored out into qca_serdev_get_m2_pwrseq(). Reviewed-by: Manivannan Sadhasivam Signed-off-by: Loic Poulain --- drivers/bluetooth/hci_qca.c | 47 +++++++++++++++++++++++++++++++++++---------- 1 file changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 7e4cb03d3db0722e5f9fa2e7a5a9a0894bf4f18c..8496bd428602c48d093bc76f9810abb9b1c43cfa 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1872,6 +1872,9 @@ static int qca_power_on(struct hci_dev *hdev) /* Controller needs time to bootup. */ msleep(150); } + + if (qcadev->bt_power.pwrseq) + pwrseq_power_on(qcadev->bt_power.pwrseq); } clear_bit(QCA_BT_OFF, &qca->flags); @@ -2387,6 +2390,34 @@ static int qca_init_regulators(struct qca_power *qca, return 0; } +static void qca_serdev_put_pwrseq(void *data) +{ + pwrseq_put(data); +} + +static int qca_serdev_get_m2_pwrseq(struct qca_serdev *qcadev) +{ + struct serdev_device *serdev = qcadev->serdev_hu.serdev; + struct pwrseq_desc *pwrseq; + + if (!of_graph_is_present(dev_of_node(&serdev->ctrl->dev))) + return 0; + + /* The pwrseq is looked up on the serdev controller (which holds the + * OF graph to the M.2 connector), but its lifetime must follow this + * serdev consumer device, not the controller. So acquire it with the + * non-devres pwrseq_get() and release it via a devres action bound to + * &serdev->dev instead of using devm_pwrseq_get(&serdev->ctrl->dev). + */ + pwrseq = pwrseq_get(&serdev->ctrl->dev, "uart"); + if (IS_ERR(pwrseq)) + return PTR_ERR(pwrseq); + + qcadev->bt_power.pwrseq = pwrseq; + + return devm_add_action_or_reset(&serdev->dev, qca_serdev_put_pwrseq, pwrseq); +} + static int qca_serdev_probe(struct serdev_device *serdev) { struct qca_serdev *qcadev; @@ -2417,6 +2448,10 @@ static int qca_serdev_probe(struct serdev_device *serdev) else qcadev->btsoc_type = QCA_ROME; + err = qca_serdev_get_m2_pwrseq(qcadev); + if (err) + return err; + switch (qcadev->btsoc_type) { case QCA_WCN3950: case QCA_WCN3988: @@ -2426,17 +2461,9 @@ static int qca_serdev_probe(struct serdev_device *serdev) case QCA_WCN6750: case QCA_WCN6855: case QCA_WCN7850: - /* - * OF graph link is only present for BT devices attached through - * the M.2 Key E connector. - */ - if (of_graph_is_present(dev_of_node(&serdev->ctrl->dev))) { - qcadev->bt_power.pwrseq = devm_pwrseq_get(&serdev->ctrl->dev, - "uart"); - if (IS_ERR(qcadev->bt_power.pwrseq)) - return PTR_ERR(qcadev->bt_power.pwrseq); + /* M.2 connector modules are powered by the pwrseq acquired above. */ + if (qcadev->bt_power.pwrseq) break; - } if (!device_property_present(&serdev->dev, "enable-gpios")) { /* -- 2.34.1