From patchwork Tue Aug 27 17:25:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raviteja Laggyshetty X-Patchwork-Id: 13779891 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 E9B481CDFC3; Tue, 27 Aug 2024 17:25:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724779551; cv=none; b=f2/YEGAX58EZyYvIj1FVD+QsdQrQodjK3BuFQU87lhtrSQP+4Y0UUDDo5H2CqdemLuW9otB0bYZ2v7viywl4khLEYMQqc8vXCez7EsPwE/mBjDPR6V63PA98bTtvv1vIj8zk1mwPZrKydGaokHq/2s9ZxR1mscWBO8dUmMuRVa0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724779551; c=relaxed/simple; bh=gsynHgCPX56eHP2lMOSf04oHQewytQUubbE7qASTqHE=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=RBWW+VDzaxGWqtwNx717/uxDMw7wTMZ2jGA/VsFZEcK54iX1SywcMNL9cYt21m7v8lzn2fQKRSFEOQkJSTqgHxN01QRj9xur3FXpoNI/+u9k/VrBNLVx9YzoQ8QiQZnPdScNheoKnAsWR0QQik3y216wCH+ovh2lJYMIhDiaUIE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=NLdu4Iv7; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="NLdu4Iv7" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47R8N0xb006778; Tue, 27 Aug 2024 17:25:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=xe7JSXGjfZ1mZqRUQ/ndIl 0VSdiNuXwfacr3jInpd8Y=; b=NLdu4Iv7+L1F5Ff3wB5z3ZSMCHV+CzNchwv/XT W+ynjG2VHekDgjxGMjH2DpOnk9H0HvQp5SHIA2Q2670CKJf3kw3z5Cs5XjZ5tjK/ HvxLADn1Lrfh4nYDUp2zNH94q4TpGuioOYCBdnJ6J1PPeIz+yaV27uotHrY4ZcMx ce+MDEXMvnF+MZPfkQvLTujgXxu8QoA2gDIqT+P1Qg7EioEDKkAY2TcA6gynIdiy yIsoaPlnup5l/1qbuOw6Ugj5z8PgaN3J0StqNUIiI0DMZFxnUSwRkX28ZGldwdzQ K1Krc7VUfp6y5GkZzz1gz26JugcQDtD2jg09gOYReJEOLVRg== Received: from nasanppmta01.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41796kyq5b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 17:25:45 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47RHPiXF012501 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 17:25:44 GMT Received: from e94a984817b1.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Tue, 27 Aug 2024 10:25:41 -0700 From: Raviteja Laggyshetty To: Georgi Djakov CC: Konrad Dybcio , Jeff Johnson , , , , , , "Raviteja Laggyshetty" , Bjorn Andersson Subject: [PATCH] interconnect: qcom: icc-rpmh: probe defer incase of missing QoS clock dependency Date: Tue, 27 Aug 2024 17:25:24 +0000 Message-ID: <20240827172524.89-1-quic_rlaggysh@quicinc.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 3a8WrjPVPFR8F7YSZdWPIymFHk0nOoSX X-Proofpoint-ORIG-GUID: 3a8WrjPVPFR8F7YSZdWPIymFHk0nOoSX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-27_10,2024-08-27_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 malwarescore=0 impostorscore=0 phishscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 bulkscore=0 spamscore=0 clxscore=1011 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408270131 Return -EPROBE_DEFER from interconnect provider incase probe defer is received from devm_clk_bulk_get_all(). This would help in reattempting the inteconnect driver probe, once the required QoS clocks are available. Rename qos_clks_required flag to qos_requires_clocks in qcom_icc_desc structure. This flag indicates that interconnect provider requires clocks for programming QoS. Suggested-by: Bjorn Andersson Signed-off-by: Raviteja Laggyshetty --- drivers/interconnect/qcom/icc-rpmh.c | 10 +++++++--- drivers/interconnect/qcom/icc-rpmh.h | 2 +- drivers/interconnect/qcom/sc7280.c | 4 ++-- 3 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c index f49a8e0cb03c..5417abf59e28 100644 --- a/drivers/interconnect/qcom/icc-rpmh.c +++ b/drivers/interconnect/qcom/icc-rpmh.c @@ -311,9 +311,13 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) } qp->num_clks = devm_clk_bulk_get_all(qp->dev, &qp->clks); - if (qp->num_clks < 0 || (!qp->num_clks && desc->qos_clks_required)) { - dev_info(dev, "Skipping QoS, failed to get clk: %d\n", qp->num_clks); - goto skip_qos_config; + if (qp->num_clks < 0 || (!qp->num_clks && desc->qos_requires_clocks)) { + if (qp->num_clks != -EPROBE_DEFER) { + dev_info(dev, "Skipping QoS, failed to get clk: %d\n", + qp->num_clks); + goto skip_qos_config; + } + return qp->num_clks; } ret = qcom_icc_rpmh_configure_qos(qp); diff --git a/drivers/interconnect/qcom/icc-rpmh.h b/drivers/interconnect/qcom/icc-rpmh.h index 14db89850fb3..82344c734091 100644 --- a/drivers/interconnect/qcom/icc-rpmh.h +++ b/drivers/interconnect/qcom/icc-rpmh.h @@ -153,7 +153,7 @@ struct qcom_icc_desc { size_t num_nodes; struct qcom_icc_bcm * const *bcms; size_t num_bcms; - bool qos_clks_required; + bool qos_requires_clocks; }; int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, diff --git a/drivers/interconnect/qcom/sc7280.c b/drivers/interconnect/qcom/sc7280.c index 167971f8e8be..6c314e000c3a 100644 --- a/drivers/interconnect/qcom/sc7280.c +++ b/drivers/interconnect/qcom/sc7280.c @@ -1691,7 +1691,7 @@ static const struct qcom_icc_desc sc7280_aggre1_noc = { .num_nodes = ARRAY_SIZE(aggre1_noc_nodes), .bcms = aggre1_noc_bcms, .num_bcms = ARRAY_SIZE(aggre1_noc_bcms), - .qos_clks_required = true, + .qos_requires_clocks = true, }; static struct qcom_icc_bcm * const aggre2_noc_bcms[] = { @@ -1723,7 +1723,7 @@ static const struct qcom_icc_desc sc7280_aggre2_noc = { .num_nodes = ARRAY_SIZE(aggre2_noc_nodes), .bcms = aggre2_noc_bcms, .num_bcms = ARRAY_SIZE(aggre2_noc_bcms), - .qos_clks_required = true, + .qos_requires_clocks = true, }; static struct qcom_icc_bcm * const clk_virt_bcms[] = {