From patchwork Wed Dec 16 11:51:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 344777 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FC09C4361B for ; Wed, 16 Dec 2020 11:52:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 12B8623382 for ; Wed, 16 Dec 2020 11:52:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725973AbgLPLwO (ORCPT ); Wed, 16 Dec 2020 06:52:14 -0500 Received: from Mailgw01.mediatek.com ([1.203.163.78]:34413 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725824AbgLPLwO (ORCPT ); Wed, 16 Dec 2020 06:52:14 -0500 X-UUID: fdf872da8e62467c8bb69f306ccaa594-20201216 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=EhM5bUedZiGi+gUkZ9oWBBRQVQNZKqOj1hTnbNAjz8M=; b=VTUcV/YXdfpQFoklALtkDCzneF/F7yPNOCR3K7it15OGuwX6MRIOjygGZBqGiuXwLv6HL4MVAyjwVpoONnGRJL5ctCPq+rolu9+WVK2zE8DlLrh1/3AYEi4UxZWCQ/uSFXC8LMupqiEz6wGoBExWTDa/nnLXeyUt7IN683Kcay4=; X-UUID: fdf872da8e62467c8bb69f306ccaa594-20201216 Received: from mtkcas34.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1742747652; Wed, 16 Dec 2020 19:51:27 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by MTKMBS31N1.mediatek.inc (172.27.4.69) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 16 Dec 2020 19:51:25 +0800 Received: from mtkslt301.mediatek.inc (10.21.14.114) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 16 Dec 2020 19:51:25 +0800 From: Chunfeng Yun To: Rob Herring , Mathias Nyman CC: Chunfeng Yun , Greg Kroah-Hartman , Matthias Brugger , , , , , , Hsin-Yi Wang , Ikjoon Jang Subject: [PATCH 2/3] usb: xhci-mtk: fix UAS issue by XHCI_BROKEN_STREAMS quirk Date: Wed, 16 Dec 2020 19:51:24 +0800 Message-ID: <20201216115125.5886-2-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201216115125.5886-1-chunfeng.yun@mediatek.com> References: <20201216115125.5886-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 16A401981E0BC0AB1C65443D744871EF4B75EBA9A7655DE5439D5904123EC1B42000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The 0.96 xHCI controller on some platforms does not support bulk stream even HCCPARAMS says supporting, due to MaxPSASize is set a non-zero default value by mistake, here use XHCI_BROKEN_STREAMS quirk to fix it. Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd") Signed-off-by: Chunfeng Yun --- drivers/usb/host/xhci-mtk.c | 7 ++++++- drivers/usb/host/xhci-mtk.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) -- 2.18.0 diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 8f321f39ab96..08dab974d847 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -395,6 +395,9 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_SUCCESS; if (mtk->lpm_support) xhci->quirks |= XHCI_LPM_SUPPORT; + + if (mtk->broken_streams) + xhci->quirks |= XHCI_BROKEN_STREAMS; } /* called during probe() after chip reset completes */ @@ -460,6 +463,8 @@ static int xhci_mtk_probe(struct platform_device *pdev) return ret; mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable"); + mtk->broken_streams = + of_property_read_bool(node, "mediatek,broken_streams_quirk"); /* optional property, ignore the error if it does not exist */ of_property_read_u32(node, "mediatek,u3p-dis-msk", &mtk->u3p_dis_msk); @@ -546,7 +551,7 @@ static int xhci_mtk_probe(struct platform_device *pdev) if (ret) goto put_usb3_hcd; - if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + if (!mtk->broken_streams && HCC_MAX_PSA(xhci->hcc_params) >= 4) xhci->shared_hcd->can_do_streams = 1; ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h index a93cfe817904..86aa4978915e 100644 --- a/drivers/usb/host/xhci-mtk.h +++ b/drivers/usb/host/xhci-mtk.h @@ -147,6 +147,7 @@ struct xhci_hcd_mtk { struct phy **phys; int num_phys; bool lpm_support; + bool broken_streams; /* usb remote wakeup */ bool uwk_en; struct regmap *uwk;