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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no 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 E9DDFC10F27 for ; Mon, 9 Mar 2020 06:41:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B5E5E206D5 for ; Mon, 9 Mar 2020 06:41:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="ZlPvOTfY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726217AbgCIGlu (ORCPT ); Mon, 9 Mar 2020 02:41:50 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:40588 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725796AbgCIGlu (ORCPT ); Mon, 9 Mar 2020 02:41:50 -0400 Received: by mail-pg1-f196.google.com with SMTP id t24so4258432pgj.7 for ; Sun, 08 Mar 2020 23:41:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:content-transfer-encoding:in-reply-to:references :subject:from:cc:to:date:message-id:user-agent; bh=RrX9EtA3zn4u15vVccJeX3aDhJuOUHVdQao27RU5nys=; b=ZlPvOTfYg8ORIBsXty84bD0rRJ/90K8uIO/uB/zt/ADLmUgqnZSsvJa7qD5c12Wnmi twF97bZmvCFfxUcO6sEehkFpu0ixFanK2imweMwyQbM+gjb3XtggIwWiX35PVRGvz/nA a5/oOPSK9KvI4Bkc5tDFy9cfr1VFsoh2VFnyY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:content-transfer-encoding :in-reply-to:references:subject:from:cc:to:date:message-id :user-agent; bh=RrX9EtA3zn4u15vVccJeX3aDhJuOUHVdQao27RU5nys=; b=FHQvd1jlfYa9Of0Eb3qrG7vLeS1VIW3X8wZob7lAiT3TLGAt7PescY3CbXKdDHYPNP fkIlA6asDvRUI7OozqH5se2WowW7zwCOgRnPXSe4HtiswBV+Fho8khyJf3E0sMLfEPT+ el+AiQindGL6IVMixLPc34QcCg5FBRVAZ7N6gU9ghJ5Sgwfy2tLm1SZT1YRnt1uYvFVX J7cX3zPubaWdPis+cT8nXb6pMPtqmrV8tRFA1nznK+Z0ZdN9UFsgZaVysWEye/GtLWkp k5v2Q+01SRGbHFpWWXhcMbbp/VmevNYf0CaaSdrIjMV3GiB5xeVkDr6m+nGsbBgg4L2C laeg== X-Gm-Message-State: ANhLgQ3T3fPJI78XF4WABtDnINfEsLGgmefannJHHaZaWObzaYF5K5yH b9k5YUe5gB9DnTB514ja/DWNU1hfPQI= X-Google-Smtp-Source: ADFU+vuFj92YnT2uVcGJAjBivqhd2E2e1bNOkvmP+cAyeV4G04fBNTjyHqM1P5aYSHvLJ2i/lJqlkA== X-Received: by 2002:a63:f311:: with SMTP id l17mr15183521pgh.142.1583736107615; Sun, 08 Mar 2020 23:41:47 -0700 (PDT) Received: from chromium.org ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id nh4sm3207636pjb.39.2020.03.08.23.41.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Mar 2020 23:41:46 -0700 (PDT) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <1583477228-32231-3-git-send-email-skakit@codeaurora.org> References: <1583477228-32231-1-git-send-email-skakit@codeaurora.org> <1583477228-32231-3-git-send-email-skakit@codeaurora.org> Subject: Re: [PATCH V3 2/2] tty: serial: qcom_geni_serial: Fix RX cancel command failure From: Stephen Boyd Cc: mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, akashast@codeaurora.org, rojay@codeaurora.org, msavaliy@qti.qualcomm.com, satya priya To: gregkh@linuxfoundation.org, satya priya Date: Sun, 08 Mar 2020 23:41:45 -0700 Message-ID: <158373610593.66766.7767101522459278381@swboyd.mtv.corp.google.com> User-Agent: alot/0.9 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Quoting satya priya (2020-03-05 22:47:08) > RX cancel command fails when BT is switched on and off multiple times. >=20 > To handle this, poll for the cancel bit in SE_GENI_S_IRQ_STATUS register > instead of SE_GENI_S_CMD_CTRL_REG. >=20 > As per the HPG update, handle the RX last bit after cancel command > and flush out the RX FIFO buffer. >=20 > Signed-off-by: satya priya > --- Reviewed-by: Stephen Boyd