From mboxrd@z Thu Jan 1 00:00:00 1970 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=-4.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 D6F2AC04E53 for ; Wed, 15 May 2019 07:48:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A507620843 for ; Wed, 15 May 2019 07:48:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=renesasgroup.onmicrosoft.com header.i=@renesasgroup.onmicrosoft.com header.b="cta3pEgu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725939AbfEOHsd (ORCPT ); Wed, 15 May 2019 03:48:33 -0400 Received: from mail-eopbgr1410138.outbound.protection.outlook.com ([40.107.141.138]:35712 "EHLO JPN01-OS2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725876AbfEOHsc (ORCPT ); Wed, 15 May 2019 03:48:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=renesasgroup.onmicrosoft.com; s=selector2-renesasgroup-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=2vSzbLPoBDSgYEH+Mv1tTXXLTs9PS4zgrW2Y3pZUcfg=; b=cta3pEguKZgM6siLbY+8XCgK5RhMfDbJQ0fDI5kA2VhBcAuAwciIJ+aJq39qWQoERRS/tmbiRZmUVlQmP3Szmw8P0QBJeqF0rE1waTyoeSm/U3qo7emzYoBV+NIqO9HbWjMuwq0urQWUHDBCtm3sv1LiCP3UKRawqwjucRDT6M8= Received: from OSBPR01MB3174.jpnprd01.prod.outlook.com (20.176.240.146) by OSBPR01MB3224.jpnprd01.prod.outlook.com (52.134.252.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1900.16; Wed, 15 May 2019 07:48:28 +0000 Received: from OSBPR01MB3174.jpnprd01.prod.outlook.com ([fe80::f873:6332:738d:7213]) by OSBPR01MB3174.jpnprd01.prod.outlook.com ([fe80::f873:6332:738d:7213%3]) with mapi id 15.20.1878.024; Wed, 15 May 2019 07:48:28 +0000 From: Yoshihiro Shimoda To: Chris Brandt , Rob Herring , Mark Rutland , Greg Kroah-Hartman , Simon Horman CC: Geert Uytterhoeven , Sergei Shtylyov , Chunfeng Yun , "linux-usb@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , Chris Brandt Subject: RE: [PATCH v3 10/15] usb: renesas_usbhs: support byte addressable CFIFO Thread-Topic: [PATCH v3 10/15] usb: renesas_usbhs: support byte addressable CFIFO Thread-Index: AQHVCmVrG6/X5i7M6EKkoR03gRcoraZr0Dkg Date: Wed, 15 May 2019 07:48:28 +0000 Message-ID: References: <20190514145605.19112-1-chris.brandt@renesas.com> <20190514145605.19112-11-chris.brandt@renesas.com> In-Reply-To: <20190514145605.19112-11-chris.brandt@renesas.com> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=yoshihiro.shimoda.uh@renesas.com; x-originating-ip: [118.238.235.108] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 00a60f49-00eb-4d12-73eb-08d6d909b80b x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(4618075)(2017052603328)(7193020);SRVR:OSBPR01MB3224; x-ms-traffictypediagnostic: OSBPR01MB3224: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; x-forefront-prvs: 0038DE95A2 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(366004)(396003)(39860400002)(376002)(136003)(346002)(189003)(199004)(6436002)(81156014)(33656002)(81166006)(6246003)(74316002)(107886003)(8936002)(7416002)(53936002)(229853002)(110136005)(54906003)(316002)(478600001)(2906002)(14454004)(7736002)(102836004)(6506007)(6116002)(3846002)(99286004)(68736007)(25786009)(4326008)(4744005)(7696005)(76176011)(5660300002)(55016002)(9686003)(476003)(486006)(305945005)(66476007)(66556008)(64756008)(66446008)(76116006)(71190400001)(66946007)(73956011)(71200400001)(256004)(86362001)(26005)(186003)(11346002)(8676002)(14444005)(52536014)(66066001)(446003);DIR:OUT;SFP:1102;SCL:1;SRVR:OSBPR01MB3224;H:OSBPR01MB3174.jpnprd01.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: renesas.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: rcWTArUwLZfMklM9iiseDy4gitpFWlYVfUzdmKidiVo3uEWDDIQfjFQcjoCoNG7lq8EDdfQHHy3BvqUxlV+fawRj1gD6h6tAo4axAXFZcxHgX83azdr93UqMM4/6YaNRaiK6XrgpE8yIknK7nE6BsBvc9+66mVAPcKWobIYymjWjNVzap3g/3berZF/W8n/HAmL/28RT1QtKHcxpCeomXEqL9oTPRTnPgjMRLw8ChD6/W05i1rw2RAras0YORQc27bo5Cf4j5V3FbbNo2FPBcqtjFrQZll8KFbKfxy1rLSlixxIFsg5/TDM7hBbaRO9+raqHjouAXzEd9IYZBiVJPgrXkhpNL8GmlnGTtB3vfN5g1EYPCBKf1Xqur6JZ1OLP9FOdCmwhfskOKHnJ/4hzFCF9K6cTTzJbsvhTXxRg+5o= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-Network-Message-Id: 00a60f49-00eb-4d12-73eb-08d6d909b80b X-MS-Exchange-CrossTenant-originalarrivaltime: 15 May 2019 07:48:28.3666 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSBPR01MB3224 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hi Chris-san, > From: Chris Brandt, Sent: Tuesday, May 14, 2019 11:56 PM >=20 > Some SoC have a CFIFO register that is byte addressable. This means > when the CFIFO access is set to 32-bit, you can write 8-bit values to > addresses CFIFO+0, CFIFO+1, CFIFO+2, CFIFO+3. >=20 > Signed-off-by: Chris Brandt Thank you for the patch! Best regards, Yoshihiro Shimoda