From patchwork Thu Apr 7 09:31:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 561467 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 A7B60C433FE for ; Thu, 7 Apr 2022 09:31:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233552AbiDGJdu (ORCPT ); Thu, 7 Apr 2022 05:33:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230193AbiDGJdt (ORCPT ); Thu, 7 Apr 2022 05:33:49 -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 AB38E38B3; Thu, 7 Apr 2022 02:31:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1649323910; x=1680859910; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=BCRZxfN5u5JLU9Zt+mjsZ9L8T/2RoTAfKmMcjDuvmm0=; b=Surj3vnZ9zmjZeZErECeuTIuJrpLDIHmx3gA+MBRvP12PwefDP4PQpn1 C9m+ncJR+qRBmX3DL2cMrpWHQpWqsWTena65bijuUHwEKi/kD8teBvGRU kcmTmvgK9QHm8l/GMeIsX9b56SW2g7aAbWcMgibSVHdJxZVk5DXHZF00q o=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 07 Apr 2022 02:31:50 -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; 07 Apr 2022 02:31:50 -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; Thu, 7 Apr 2022 02:31:49 -0700 Received: from c-sanm-linux.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; Thu, 7 Apr 2022 02:31:45 -0700 From: Sandeep Maheswaram To: Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , Matthias Kaehlcke , Mathias Nyman CC: , , , , , , , Sandeep Maheswaram Subject: [PATCH v3 1/2] usb: host: xhci-plat: Add device property to set XHCI_SKIP_PHY_INIT quirk Date: Thu, 7 Apr 2022 15:01:27 +0530 Message-ID: <1649323888-12420-2-git-send-email-quic_c_sanm@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1649323888-12420-1-git-send-email-quic_c_sanm@quicinc.com> References: <1649323888-12420-1-git-send-email-quic_c_sanm@quicinc.com> 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 Add device property usb-skip-phy-init to check and set XHCI_SKIP_PHY_INIT quirk. Runtime suspend of phy drivers was failing from DWC3 driver as runtime usage value is 2 because the phy is initialized from DWC3 core and HCD core. Some controllers like DWC3 and CDNS3 manage phy in their core drivers. This property can be set to avoid phy initialization in HCD core. Signed-off-by: Sandeep Maheswaram --- drivers/usb/host/xhci-plat.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 649ffd8..7624ed9 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -305,6 +305,9 @@ static int xhci_plat_probe(struct platform_device *pdev) if (device_property_read_bool(tmpdev, "quirk-broken-port-ped")) xhci->quirks |= XHCI_BROKEN_PORT_PED; + if (device_property_read_bool(tmpdev, "usb-skip-phy-init")) + xhci->quirks |= XHCI_SKIP_PHY_INIT; + device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); }