From patchwork Wed Jun 21 04:36:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Kurapati X-Patchwork-Id: 13286642 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 796E3C0015E for ; Wed, 21 Jun 2023 04:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229853AbjFUEhl (ORCPT ); Wed, 21 Jun 2023 00:37:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229849AbjFUEhf (ORCPT ); Wed, 21 Jun 2023 00:37:35 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0669019A2; Tue, 20 Jun 2023 21:37:22 -0700 (PDT) Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 35L44cu2023492; Wed, 21 Jun 2023 04:37:13 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=0fnpNqO6j2nyLAvZ+h2YUoedtUSIlUcQXlKgg8100yo=; b=Vx5JJbxgq1mBM7BJRJGF/fA20ubWoXF/8Hh+o3aFJxLXZfcNqMTGNQbtZ0iaQxpU/jR2 /k3GSoTfZakkjj8ouzTwSWn6TwRSi0FA4o74IOiLRHh/rIe4Edc8Pgr0qEtgYeEBypFH rtd2DQEn33jYl+aG5bzhXaLxskKJjjWGrZUUke7QaueNAyfs0OdD5maVdB1acgztsdFL rKta4dW/GTl7rpt6gk91T3dv3nIsZkZfgUMlM0EEyv2Tc65LjrCUbSL3XbW6NJ11bzcz vOO2vrmemW2KyR8CTeZXWZcSm/5sj23obdTzrP7AYruvfWtQKC8tNwRb+PRAIW4vZRBw Jw== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3rb34hayjh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Jun 2023 04:37:12 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 35L4ahA0002632 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 21 Jun 2023 04:36:43 GMT Received: from hu-kriskura-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Tue, 20 Jun 2023 21:36:37 -0700 From: Krishna Kurapati To: Thinh Nguyen , Greg Kroah-Hartman , Philipp Zabel , "Andy Gross" , Bjorn Andersson , "Konrad Dybcio" , Rob Herring , Krzysztof Kozlowski , Felipe Balbi , Wesley Cheng , Johan Hovold CC: , , , , , , , , , , Krishna Kurapati Subject: [PATCH v9 00/10] Add multiport support for DWC3 controllers Date: Wed, 21 Jun 2023 10:06:18 +0530 Message-ID: <20230621043628.21485-1-quic_kriskura@quicinc.com> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: qu71VPH5lUgQa74PgQHGbWj1JdflIcdR X-Proofpoint-ORIG-GUID: qu71VPH5lUgQa74PgQHGbWj1JdflIcdR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-21_03,2023-06-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=999 priorityscore=1501 bulkscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306210039 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Currently the DWC3 driver supports only single port controller which requires at most two PHYs ie HS and SS PHYs. There are SoCs that has DWC3 controller with multiple ports that can operate in host mode. Some of the port supports both SS+HS and other port supports only HS mode. This change primarily refactors the Phy logic in core driver to allow multiport support with Generic Phy's. Chananges have been tested on QCOM SoC SA8295P which has 4 ports (2 are HS+SS capable and 2 are HS only capable). Changes in v9: Added IRQ support for DP/DM/SS MP Irq's of SC8280 Refactored code to read port count by accessing xhci registers Changes in v8: Reorganised code in patch-5 Fixed nitpicks in code according to comments received on v7 Fixed indentation in DT patches Added drive strength for pinctrl nodes in SA8295 DT Changes in v7: Added power event irq's for Multiport controller. Udpated commit text for patch-9 (adding DT changes for enabling first port of multiport controller on sa8540-ride). Fixed check-patch warnings for driver code. Fixed DT binding errors for changes in snps,dwc3.yaml Reabsed code on top of usb-next Changes in v6: Updated comments in code after. Updated variables names appropriately as per review comments. Updated commit text in patch-2 and added additional info as per review comments. The patch header in v5 doesn't have "PATHCH v5" notation present. Corrected it in this version. Changes in v5: Added DT support for first port of Teritiary USB controller on SA8540-Ride Added support for reading port info from XHCI Extended Params registers. Changes in RFC v4: Added DT support for SA8295p. Changes in RFC v3: Incase any PHY init fails, then clear/exit the PHYs that are already initialized. Changes in RFC v2: Changed dwc3_count_phys to return the number of PHY Phandles in the node. This will be used now in dwc3_extract_num_phys to increment num_usb2_phy and num_usb3_phy. Added new parameter "ss_idx" in dwc3_core_get_phy_ny_node and changed its structure such that the first half is for HS-PHY and second half is for SS-PHY. In dwc3_core_get_phy, for multiport controller, only if SS-PHY phandle is present, pass proper SS_IDX else pass -1. Test done on v9: Tested enum and wakeup on first port of quad port controller Tested enum and wakeup on SC7280 Chromebook Link to v8: https://lore.kernel.org/all/20230514054917.21318-1-quic_kriskura@quicinc.com/ Link to v7: https://lore.kernel.org/all/20230501143445.3851-1-quic_kriskura@quicinc.com/ Link to v6: https://lore.kernel.org/all/20230405125759.4201-1-quic_kriskura@quicinc.com/ Link to v5: https://lore.kernel.org/all/20230310163420.7582-1-quic_kriskura@quicinc.com/ Link to RFC v4: https://lore.kernel.org/all/20230115114146.12628-1-quic_kriskura@quicinc.com/ Link to RFC v3: https://lore.kernel.org/all/1654709787-23686-1-git-send-email-quic_harshq@quicinc.com/#r Link to RFC v2: https://lore.kernel.org/all/1653560029-6937-1-git-send-email-quic_harshq@quicinc.com/#r Krishna Kurapati (10): dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport dt-bindings: usb: Add bindings for multiport properties on DWC3 controller usb: dwc3: core: Access XHCI address space temporarily to read port info usb: dwc3: core: Skip setting event buffers for host only controllers usb: dwc3: core: Refactor PHY logic to support Multiport Controller usb: dwc3: qcom: Add support to read IRQ's related to multiport usb: dwc3: qcom: Add multiport suspend/resume support for wrapper arm64: dts: qcom: sc8280xp: Add multiport controller node for SC8280 arm64: dts: qcom: sa8295p: Enable tertiary controller and its 4 USB ports arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb controller .../devicetree/bindings/usb/qcom,dwc3.yaml | 29 ++ .../devicetree/bindings/usb/snps,dwc3.yaml | 13 +- arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 53 +++ arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 22 ++ arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 77 +++++ drivers/usb/dwc3/core.c | 325 ++++++++++++++---- drivers/usb/dwc3/core.h | 20 +- drivers/usb/dwc3/drd.c | 15 +- drivers/usb/dwc3/dwc3-qcom.c | 156 +++++++-- 9 files changed, 595 insertions(+), 115 deletions(-)