From patchwork Fri Apr 7 08:29:31 2023 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: 13204578 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 0A107C77B6E for ; Fri, 7 Apr 2023 08:29:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238863AbjDGI3u (ORCPT ); Fri, 7 Apr 2023 04:29:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234253AbjDGI3s (ORCPT ); Fri, 7 Apr 2023 04:29:48 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31AE67ED0; Fri, 7 Apr 2023 01:29:44 -0700 (PDT) X-UUID: 56fde772d51e11eda9a90f0bb45854f4-20230407 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=5VcZBJRxs5HeTWxpfj6S2OTJa38yyA6dsqQB+rjNTZw=; b=NgOniwfifDLwIUrRyPPmdjoGhdvlUXsyCWbc+pfLIls4Wcb7mrUYpRfMgcgtMTj8fd9N+KRG6wj6YyMEjZ5E5SImIbipUZBSuxnYBsWZ36znBZknqLxqFFVs2ondLutC1p92SBsBCvmQFsC1HhXZMT9NI/0BX8pgbFjWdffbcN4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:4d00055b-e4ad-46a1-ba89-fb72b7a32b47,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:120426c,CLOUDID:0d6281b5-beed-4dfc-bd9c-e1b22fa6ccc4,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 56fde772d51e11eda9a90f0bb45854f4-20230407 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 671598803; Fri, 07 Apr 2023 16:29:40 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:39 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:38 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 1/7] usb: mtu3: give back request when rx error happens Date: Fri, 7 Apr 2023 16:29:31 +0800 Message-ID: <20230407082937.14558-1-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org When the Rx enconnter errors, currently, only print error logs, that may cause class driver's RX halt, shall give back the request with error status meanwhile. Signed-off-by: Chunfeng Yun --- v2: remove @req suggested by AngeloGioacchino --- drivers/usb/mtu3/mtu3_qmu.c | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c index a2fdab8b63b2..a4da1af0b2c0 100644 --- a/drivers/usb/mtu3/mtu3_qmu.c +++ b/drivers/usb/mtu3/mtu3_qmu.c @@ -466,6 +466,37 @@ static void qmu_tx_zlp_error_handler(struct mtu3 *mtu, u8 epnum) mtu3_qmu_resume(mep); } +/* + * when rx error happens (except zlperr), QMU will stop, and RQCPR saves + * the GPD encountered error, Done irq will arise after resuming QMU again. + */ +static void qmu_error_rx(struct mtu3 *mtu, u8 epnum) +{ + struct mtu3_ep *mep = mtu->out_eps + epnum; + struct mtu3_gpd_ring *ring = &mep->gpd_ring; + struct qmu_gpd *gpd_current = NULL; + struct mtu3_request *mreq; + dma_addr_t cur_gpd_dma; + + cur_gpd_dma = read_rxq_cur_addr(mtu->mac_base, epnum); + gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma); + + mreq = next_request(mep); + if (!mreq || mreq->gpd != gpd_current) { + dev_err(mtu->dev, "no correct RX req is found\n"); + return; + } + + mreq->request.status = -EAGAIN; + + /* by pass the current GDP */ + gpd_current->dw0_info |= cpu_to_le32(GPD_FLAGS_BPS | GPD_FLAGS_HWO); + mtu3_qmu_resume(mep); + + dev_dbg(mtu->dev, "%s EP%d, current=%p, req=%p\n", + __func__, epnum, gpd_current, mreq); +} + /* * NOTE: request list maybe is already empty as following case: * queue_tx --> qmu_interrupt(clear interrupt pending, schedule tasklet)--> @@ -571,14 +602,18 @@ static void qmu_exception_isr(struct mtu3 *mtu, u32 qmu_status) if ((qmu_status & RXQ_CSERR_INT) || (qmu_status & RXQ_LENERR_INT)) { errval = mtu3_readl(mbase, U3D_RQERRIR0); + mtu3_writel(mbase, U3D_RQERRIR0, errval); + for (i = 1; i < mtu->num_eps; i++) { if (errval & QMU_RX_CS_ERR(i)) dev_err(mtu->dev, "Rx %d CS error!\n", i); if (errval & QMU_RX_LEN_ERR(i)) dev_err(mtu->dev, "RX %d Length error\n", i); + + if (errval & (QMU_RX_CS_ERR(i) | QMU_RX_LEN_ERR(i))) + qmu_error_rx(mtu, i); } - mtu3_writel(mbase, U3D_RQERRIR0, errval); } if (qmu_status & RXQ_ZLPERR_INT) { From patchwork Fri Apr 7 08:29:32 2023 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: 13204577 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 F0039C77B61 for ; Fri, 7 Apr 2023 08:29:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237553AbjDGI3t (ORCPT ); Fri, 7 Apr 2023 04:29:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234189AbjDGI3s (ORCPT ); Fri, 7 Apr 2023 04:29:48 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A12417ECB; 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Fri, 07 Apr 2023 16:29:41 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:39 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:39 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 2/7] usb: mtu3: use boolean return value Date: Fri, 7 Apr 2023 16:29:32 +0800 Message-ID: <20230407082937.14558-2-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Prefer to use boolean value due to gpd_ring_empty() return true or false. See "16) Function return values and names" in coding-style.rst Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Chunfeng Yun --- v2: add Reviewed-by AngeloGioacchino --- drivers/usb/mtu3/mtu3_qmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c index a4da1af0b2c0..6be4977a5db5 100644 --- a/drivers/usb/mtu3/mtu3_qmu.c +++ b/drivers/usb/mtu3/mtu3_qmu.c @@ -221,7 +221,7 @@ static struct qmu_gpd *advance_deq_gpd(struct mtu3_gpd_ring *ring) } /* check if a ring is emtpy */ -static int gpd_ring_empty(struct mtu3_gpd_ring *ring) +static bool gpd_ring_empty(struct mtu3_gpd_ring *ring) { struct qmu_gpd *enq = ring->enqueue; struct qmu_gpd *next; From patchwork Fri Apr 7 08:29:33 2023 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: 13204581 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 705BAC6FD1D for ; Fri, 7 Apr 2023 08:30:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240107AbjDGIaD (ORCPT ); Fri, 7 Apr 2023 04:30:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239780AbjDGI3y (ORCPT ); Fri, 7 Apr 2023 04:29:54 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6532AF25; Fri, 7 Apr 2023 01:29:49 -0700 (PDT) X-UUID: 576754fad51e11edb6b9f13eb10bd0fe-20230407 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=N09cAwcaHlqM3x5RvXqAyDDVVPSor4fraHJ/xFed9PM=; b=lHQvkWD0XDTZ49xx+7kgxHidQ+IE8LMRU6f9YRcVdTHm/fUAKUCvjQKlM7uVWaXScRtWRTXNSg9UXVYhtK3qNB8bYCyP1+Rai+A1CjmmCVLgk9qQtdbECtKxnBU39R3jAhjcDqaMQIQwsrYzNvmd1voxTn+0MaE984+0bZB7S9k=; X-CID-CACHE: Type:Local,Time:202304071629+08,HitQuantity:1 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:50995b94-cc9d-4da8-9986-d5bd4a7bd53d,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:1,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-4 X-CID-META: VersionHash:120426c,CLOUDID:4734a02a-564d-42d9-9875-7c868ee415ec,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-UUID: 576754fad51e11edb6b9f13eb10bd0fe-20230407 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 440793704; Fri, 07 Apr 2023 16:29:41 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:40 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:40 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 3/7] usb: mtu3: fix kernel panic at qmu transfer done irq handler Date: Fri, 7 Apr 2023 16:29:33 +0800 Message-ID: <20230407082937.14558-3-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org When handle qmu transfer irq, it will unlock @mtu->lock before give back request, if another thread handle disconnect event at the same time, and try to disable ep, it may lock @mtu->lock and free qmu ring, then qmu irq hanlder may get a NULL gpd, avoid the KE by checking gpd's value before handling it. e.g. qmu done irq on cpu0 thread running on cpu1 qmu_done_tx() handle gpd [0] mtu3_requ_complete() mtu3_gadget_ep_disable() unlock @mtu->lock give back request lock @mtu->lock mtu3_ep_disable() mtu3_gpd_ring_free() unlock @mtu->lock lock @mtu->lock get next gpd [1] [1]: goto [0] to handle next gpd, and next gpd may be NULL. Signed-off-by: Chunfeng Yun --- v2: fix typo suggested by AngeloGioacchino --- drivers/usb/mtu3/mtu3_qmu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c index 6be4977a5db5..3d77408e3133 100644 --- a/drivers/usb/mtu3/mtu3_qmu.c +++ b/drivers/usb/mtu3/mtu3_qmu.c @@ -210,6 +210,7 @@ static struct qmu_gpd *advance_enq_gpd(struct mtu3_gpd_ring *ring) return ring->enqueue; } +/* @dequeue may be NULL if ring is unallocated or freed */ static struct qmu_gpd *advance_deq_gpd(struct mtu3_gpd_ring *ring) { if (ring->dequeue < ring->end) @@ -522,7 +523,7 @@ static void qmu_done_tx(struct mtu3 *mtu, u8 epnum) dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n", __func__, epnum, gpd, gpd_current, ring->enqueue); - while (gpd != gpd_current && !GET_GPD_HWO(gpd)) { + while (gpd && gpd != gpd_current && !GET_GPD_HWO(gpd)) { mreq = next_request(mep); @@ -561,7 +562,7 @@ static void qmu_done_rx(struct mtu3 *mtu, u8 epnum) dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n", __func__, epnum, gpd, gpd_current, ring->enqueue); - while (gpd != gpd_current && !GET_GPD_HWO(gpd)) { + while (gpd && gpd != gpd_current && !GET_GPD_HWO(gpd)) { mreq = next_request(mep); From patchwork Fri Apr 7 08:29:34 2023 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: 13204579 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 8BF8AC77B71 for ; Fri, 7 Apr 2023 08:30:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232632AbjDGI3w (ORCPT ); Fri, 7 Apr 2023 04:29:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231765AbjDGI3s (ORCPT ); Fri, 7 Apr 2023 04:29:48 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C0D27DBF; Fri, 7 Apr 2023 01:29:47 -0700 (PDT) X-UUID: 5854ab10d51e11eda9a90f0bb45854f4-20230407 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=vWGHzunDbxWDLDtboxTw3mk43F8Ucc7eRgJDJnklAJo=; b=E3F5zcFTacg9f9AIgo3mbEkMFc4OAFd8wnp/VM4q6hWAzEUDdm6041eaMqx5aVB3lUPViXtyent63G1fDOnUhkGVVHPo6+O4Zoqkf69QjXXKzFZMjwe0Z2xf4eymhA1bqPD/5Hn88vwQ9JSTnm1q13KsL7/yeX0uuxnGkK7m0uE=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:81da8e16-818f-4733-bca9-72ffae391b5f,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.22,REQID:81da8e16-818f-4733-bca9-72ffae391b5f,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:120426c,CLOUDID:7a6281b5-beed-4dfc-bd9c-e1b22fa6ccc4,B ulkID:230407162943II8GT2WT,BulkQuantity:0,Recheck:0,SF:38|29|28|17|19|48,T C:nil,Content:0,EDM:-3,IP:nil,URL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,CO L:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 5854ab10d51e11eda9a90f0bb45854f4-20230407 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1891287872; Fri, 07 Apr 2023 16:29:42 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:41 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:40 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 4/7] usb: mtu3: unlock @mtu->lock just before giving back request Date: Fri, 7 Apr 2023 16:29:34 +0800 Message-ID: <20230407082937.14558-4-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org No need unlock @mtu->lock when unmap request, unlock it just before giving back request, due to we do not lock this spinlock when map the request. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Chunfeng Yun --- v2: add Reviewed-by AngeloGioacchino --- drivers/usb/mtu3/mtu3_gadget.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index c0264d5426bf..ad0eeac4332d 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -23,7 +23,6 @@ __acquires(mep->mtu->lock) req->status = status; trace_mtu3_req_complete(mreq); - spin_unlock(&mtu->lock); /* ep0 makes use of PIO, needn't unmap it */ if (mep->epnum) @@ -32,6 +31,7 @@ __acquires(mep->mtu->lock) dev_dbg(mtu->dev, "%s complete req: %p, sts %d, %d/%d\n", mep->name, req, req->status, req->actual, req->length); + spin_unlock(&mtu->lock); usb_gadget_giveback_request(&mep->ep, req); spin_lock(&mtu->lock); } From patchwork Fri Apr 7 08:29:35 2023 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: 13204580 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 08187C76196 for ; Fri, 7 Apr 2023 08:30:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239167AbjDGIaC (ORCPT ); Fri, 7 Apr 2023 04:30:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239432AbjDGI3v (ORCPT ); Fri, 7 Apr 2023 04:29:51 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A66DD7ECB; Fri, 7 Apr 2023 01:29:48 -0700 (PDT) X-UUID: 58bfbab8d51e11edb6b9f13eb10bd0fe-20230407 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=KgPmlZ5Rc5SqpbW8c7zrSNMdoNSH2yTeyLzGUm9Y1kU=; b=m3jD4EWrAc0lu3o0PuX0RHgKJt8EliBvTfDoqbWEVqsImVhIUGtPMMQFiQZAfQJVzJsuIUzXxSwEBuqCxskNpV4RkCLl5C+1WmTVYNrThQ2GUhu+W5C4Gl0VP22Fmq6hFrL3KIAvBHj0AviUoOXx6CryI2pNzdb97Iu212jnjdU=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:d6c43fae-1555-4c56-9fa7-3eac921f4fbe,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:120426c,CLOUDID:a4170ff8-ddba-41c3-91d9-10eeade8eac7,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 58bfbab8d51e11edb6b9f13eb10bd0fe-20230407 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1431180172; Fri, 07 Apr 2023 16:29:43 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:42 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:41 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 5/7] usb: mtu3: expose role-switch control to userspace Date: Fri, 7 Apr 2023 16:29:35 +0800 Message-ID: <20230407082937.14558-5-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The allow_userspace_control flag enables manual role switch from userspace, turn this feature on like several other USB DRD controller drivers. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Chunfeng Yun --- v2: add Reviewed-by AngeloGioacchino --- drivers/usb/mtu3/mtu3_dr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index 9b8aded3d95e..8191b7ed3852 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -294,6 +294,7 @@ static int ssusb_role_sw_register(struct otg_switch_mtk *otg_sx) role_sx_desc.get = ssusb_role_sw_get; role_sx_desc.fwnode = dev_fwnode(dev); role_sx_desc.driver_data = ssusb; + role_sx_desc.allow_userspace_control = true; otg_sx->role_sw = usb_role_switch_register(dev, &role_sx_desc); if (IS_ERR(otg_sx->role_sw)) return PTR_ERR(otg_sx->role_sw); From patchwork Fri Apr 7 08:29:36 2023 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: 13204582 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 B8D2FC77B76 for ; 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Fri, 7 Apr 2023 16:29:42 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 6/7] dt-bindings: usb: mtu3: add two optional clocks Date: Fri, 7 Apr 2023 16:29:36 +0800 Message-ID: <20230407082937.14558-6-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add optional clock 'xhci_ck' and 'frmcnt_ck'; Add optional property "assigned-clock" and "assigned-clock-parents"; Signed-off-by: Chunfeng Yun Reviewed-by: Rob Herring --- v2: remove assigned-clocks* properties suggested by Rob --- Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml index d2655173e108..3d403d944453 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml +++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml @@ -66,6 +66,8 @@ properties: - description: Reference clock used by low power mode etc - description: Mcu bus clock for register access - description: DMA bus clock for data transfer + - description: DRD controller clock + - description: Frame count clock clock-names: minItems: 1 @@ -74,6 +76,8 @@ properties: - const: ref_ck - const: mcu_ck - const: dma_ck + - const: xhci_ck + - const: frmcnt_ck phys: description: From patchwork Fri Apr 7 08:29:37 2023 Content-Type: text/plain; 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Fri, 07 Apr 2023 16:29:44 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Fri, 7 Apr 2023 16:29:43 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Fri, 7 Apr 2023 16:29:42 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring CC: Chunfeng Yun , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , , , , , , Tianping Fang Subject: [PATCH v2 7/7] usb: mtu3: add optional clock xhci_ck and frmcnt_ck Date: Fri, 7 Apr 2023 16:29:37 +0800 Message-ID: <20230407082937.14558-7-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407082937.14558-1-chunfeng.yun@mediatek.com> References: <20230407082937.14558-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add optional clock 'xhci_ck' which is usually the same as sys_ck, but some SoC use two separated clocks when the controller supports dual role mode; Add optional clock 'frmcnt_ck' used on 4nm or advanced process SoC. Signed-off-by: Chunfeng Yun --- v2: no changes --- drivers/usb/mtu3/mtu3.h | 2 +- drivers/usb/mtu3/mtu3_plat.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index 2d7b57e07eee..b4a7662dded5 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -90,7 +90,7 @@ struct mtu3_request; */ #define EP0_RESPONSE_BUF 6 -#define BULK_CLKS_CNT 4 +#define BULK_CLKS_CNT 6 /* device operated link and speed got from DEVICE_CONF register */ enum mtu3_speed { diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index d78ae52b4e26..6f264b129243 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -234,6 +234,8 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) clks[1].id = "ref_ck"; clks[2].id = "mcu_ck"; clks[3].id = "dma_ck"; + clks[4].id = "xhci_ck"; + clks[5].id = "frmcnt_ck"; ret = devm_clk_bulk_get_optional(dev, BULK_CLKS_CNT, clks); if (ret) return ret;