From patchwork Tue May 31 08:20:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Harsh Agarwal X-Patchwork-Id: 577765 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 9EF48C433F5 for ; Tue, 31 May 2022 08:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244784AbiEaIUd (ORCPT ); Tue, 31 May 2022 04:20:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244790AbiEaIUb (ORCPT ); Tue, 31 May 2022 04:20:31 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63DBC9399D; Tue, 31 May 2022 01:20:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1653985230; x=1685521230; h=from:to:cc:subject:date:message-id:mime-version; bh=71XG4ZmwJ09OcgbOEPiZ9EnPHO86FepcH2+AFt4DG3A=; b=xj0laKrzcJ5t6csilCoHHz9k3xGxS9Pm8kbg1bjj2WF4wkZXp5c6K9ds Jt5rYH0lEbVsCHVsKqCWd4JEhCNZqyc/NeDpRVU+P7JWHEekqyhy7txnZ pv+WW5QRQ45q1h2xvBMcBLkgq/PWmkcSI14WjKCJNtH7mx0foJTkPW7/D A=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 31 May 2022 01:20:30 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2022 01:20:29 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Tue, 31 May 2022 01:20:28 -0700 Received: from hu-harshq-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 15.2.986.22; Tue, 31 May 2022 01:20:24 -0700 From: Harsh Agarwal To: Greg Kroah-Hartman , Rob Herring , Philipp Zabel , "Krzysztof Kozlowski" , Felipe Balbi , Bjorn Andersson CC: , , , , , , Harsh Agarwal Subject: [PATCH 0/3] Add support for multiport controller Date: Tue, 31 May 2022 13:50:14 +0530 Message-ID: <1653985217-20953-1-git-send-email-quic_harshq@quicinc.com> X-Mailer: git-send-email 2.7.4 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) Precedence: bulk List-ID: X-Mailing-List: linux-usb@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 refactors the PHY logic to support multiport controller. The implementation has been tested with Generic PHYs as well. For any multiport controller we would define a new node "multiport" inside dwc3 and then add subsequent "mport" nodes inside it for individual ports that it supports. Now each individual "mport" node defines their own PHYs. e.g. Consider a Dual port controller where each port supports HS+SS multiport { mp_1: mport@1 { usb-phy = , ; /* Can define Generic PHYs also */ }; mp_2: mport@2 { usb-phy = , ; }; Harsh Agarwal (3): dt-bindings: usb: dwc3: Add support for multiport related properties usb: phy: Add devm_of_usb_get_phy_by_phandle usb: dwc3: Refactor PHY logic to support Multiport Controller .../devicetree/bindings/usb/snps,dwc3.yaml | 55 +++ drivers/usb/dwc3/core.c | 400 +++++++++++++++------ drivers/usb/dwc3/core.h | 12 +- drivers/usb/dwc3/drd.c | 16 +- drivers/usb/dwc3/gadget.c | 4 +- drivers/usb/phy/phy.c | 34 ++ include/linux/usb/phy.h | 8 + 7 files changed, 402 insertions(+), 127 deletions(-)