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=-10.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 A237BC433ED for ; Tue, 4 May 2021 17:46:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8726C613C6 for ; Tue, 4 May 2021 17:46:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231961AbhEDRru (ORCPT ); Tue, 4 May 2021 13:47:50 -0400 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:37431 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231835AbhEDRrt (ORCPT ); Tue, 4 May 2021 13:47:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1620150414; x=1651686414; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=86tB1ZeQi45Dw3rGD4G74qfgbGne5hAz+b/ViIYbvNg=; b=DGs1FKFp2jTuDwhBZ29AvnIGU11masgedcO4joLxJgGPpxNl0jCGIIxY JKG+kdCkbZd7I76kqnHT3mBIw+V5DNehROsrRWbF3CadIY4lU2La1fuob lHVzHGrGR8kI3DkXO3n0tP4COlJIlgH7uTEFqLdGI95h8kd3kWBQyco/c E=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 04 May 2021 10:46:54 -0700 X-QCInternal: smtphost Received: from nasanexm03e.na.qualcomm.com ([10.85.0.48]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/AES256-SHA; 04 May 2021 10:46:54 -0700 Received: from [10.226.59.216] (10.80.80.8) by nasanexm03e.na.qualcomm.com (10.85.0.48) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 4 May 2021 10:46:53 -0700 Subject: Re: [PATCH v8 5/9] bus: mhi: core: Hold device wake for channel update commands To: Bhaumik Bhatt , CC: , , , , , References: <1617311778-1254-1-git-send-email-bbhatt@codeaurora.org> <1617311778-1254-6-git-send-email-bbhatt@codeaurora.org> From: Jeffrey Hugo Message-ID: Date: Tue, 4 May 2021 11:46:52 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.9.1 MIME-Version: 1.0 In-Reply-To: <1617311778-1254-6-git-send-email-bbhatt@codeaurora.org> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03b.na.qualcomm.com (10.85.0.98) To nasanexm03e.na.qualcomm.com (10.85.0.48) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/1/2021 3:16 PM, Bhaumik Bhatt wrote: > MHI host can fail early if device is in a bad state by attempting > to assert device wake and holding the runtime PM vote before > sending a channel update command instead of performing a wake > toggle and waiting for a timeout if the send were to fail. This > can help improve the design and enable shorter wait periods for > device to respond as votes are already held. > > Signed-off-by: Bhaumik Bhatt > --- Reviewed-by: Jeffrey Hugo