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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, USER_AGENT_MUTT 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 0947EC43381 for ; Fri, 29 Mar 2019 14:40:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CD0662183F for ; Fri, 29 Mar 2019 14:40:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553870447; bh=bsu/DwuniISwjehFV3/XIe2kf9xEiuVna1l+ar1MfLI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=AplI/bnyD3qYGdO3BrdbNwMZkhE5+3M7KIGuFxF1EiBoOwN0P5JCY4nBjTo51XbIP qH9bex/07ccvNjsSwcqo8TEeQ2BMb6NjyIqLLt9Cc9mtiiyXBIjztco0SPqx6rfNrV +VQ8n4kG2KwnB7S5GFffMEwM1VjBw85ygECF0Te8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729274AbfC2Okq (ORCPT ); Fri, 29 Mar 2019 10:40:46 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:46226 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728711AbfC2Okq (ORCPT ); Fri, 29 Mar 2019 10:40:46 -0400 Received: by mail-lj1-f193.google.com with SMTP id h21so2152720ljk.13; Fri, 29 Mar 2019 07:40:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=1m4WkVpmFHhVXK/F9iVemn6CgoVQb/s1ZYilF+ONsG8=; b=OramSq6HLTkhP1jNtCXO+ep7drMOjWIk6S2gTfSL/56nEDftlUecGrEY0eqEbiIzfI QR070LiUUNRiQVcQEd/+9y3RhAuW4LQPsxyqjxL6rs/wvRgTEY23wlnZ9x+F1GSvArHY vp7Xt1rifmz3Fr4KiA/LsK9dcs9PvLUIa5ZyEUDlPanexAS1/fBBffG8xVR4vlt4pcCa p49lgzYJVyBaKfcjGlm6Zg7O+RPF8y96QeROqdzCRDu5Zm4XLZFtH9B5UYiAHQ3d993w 3wBPlfay5znmwGDNMAvw3LnnVRMTsi1btEqD1nvUcM7b2j88nmpeeWbhqC3ZGtbg250W zENQ== X-Gm-Message-State: APjAAAWSj/wq55/9q7UpwILFk/ciBf0PfEfISKl23C9+SUr/cPaVK2RR txzw/43TJ9VxK5M++Y6R/Yw= X-Google-Smtp-Source: APXvYqznOhAHGkfCteJ/wy6mJcBpnZ7qTAZCxkDL6bxpllKJciqvWUDIto9qoX87N6N8a/srkYmBIA== X-Received: by 2002:a2e:9f05:: with SMTP id u5mr24703316ljk.183.1553870443958; Fri, 29 Mar 2019 07:40:43 -0700 (PDT) Received: from xi.terra (c-74bee655.07-184-6d6c6d4.bbcust.telenor.se. [85.230.190.116]) by smtp.gmail.com with ESMTPSA id v21sm326558lfg.26.2019.03.29.07.40.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 29 Mar 2019 07:40:42 -0700 (PDT) Received: from johan by xi.terra with local (Exim 4.91) (envelope-from ) id 1h9sgd-0003I4-C1; Fri, 29 Mar 2019 15:40:51 +0100 Date: Fri, 29 Mar 2019 15:40:51 +0100 From: Johan Hovold To: "Ji-Ze Hong (Peter Hong)" Cc: peter_hong@fintek.com.tw, johan@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, "Ji-Ze Hong (Peter Hong)" , Oliver Neukum Subject: Re: [PATCH V3 1/3] USB: serial: f81232: clear overrun flag Message-ID: <20190329144051.GA12562@localhost> References: <1553848122-1227-1-git-send-email-hpeter+linux_kernel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1553848122-1227-1-git-send-email-hpeter+linux_kernel@gmail.com> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 29, 2019 at 04:28:40PM +0800, Ji-Ze Hong (Peter Hong) wrote: > The F81232 will report data and LSR with bulk like following format: > bulk-in data: [LSR(1Byte)+DATA(1Byte)][LSR(1Byte)+DATA(1Byte)]... > > LSR will auto clear frame/parity/break error flag when reading by H/W, > but overrrun will only cleared when reading LSR. So this patch add a > worker to read LSR when overrun and flush the worker on close() & > suspend(). > > Cc: Oliver Neukum > Signed-off-by: Ji-Ze Hong (Peter Hong) > --- What changed since v2? Please always make sure to include a changelog here below the cut-off line. Thanks, Johan