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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 E5707C47256 for ; Sat, 2 May 2020 02:32:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C516C2073E for ; Sat, 2 May 2020 02:32:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="pTq7Op9X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727860AbgEBCcd (ORCPT ); Fri, 1 May 2020 22:32:33 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:39466 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726762AbgEBCca (ORCPT ); Fri, 1 May 2020 22:32:30 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588386750; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=m26u8GXRAfLww1UnzFHikWU4UVdgIijSum+gcPCH04E=; b=pTq7Op9XqluhlqfiWCUmtbxy1WyKV0LmY0oWm3BDjc7DN8HVIOrdvP3WAuli2BvtgsZsdLSj ah3wVk30ntxxalHi2GJYF3omU0ihDf9i8ijBnEet6hXLpSeatYx3K6TpqR1vNyL8PVPxfTpD cnSk97oaGpWGjWp0BrFzJWhzvC8= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eacdbb0.7f9daa3fac38-smtp-out-n02; Sat, 02 May 2020 02:32:16 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 57401C432C2; Sat, 2 May 2020 02:32:15 +0000 (UTC) Received: from bbhatt-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: bbhatt) by smtp.codeaurora.org (Postfix) with ESMTPSA id 6FA15C432C2; Sat, 2 May 2020 02:32:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6FA15C432C2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=bbhatt@codeaurora.org From: Bhaumik Bhatt To: mani@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, Bhaumik Bhatt Subject: [PATCH v4 2/8] bus: mhi: core: Cache intmod from mhi event to mhi channel Date: Fri, 1 May 2020 19:31:59 -0700 Message-Id: <1588386725-1165-3-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1588386725-1165-1-git-send-email-bbhatt@codeaurora.org> References: <1588386725-1165-1-git-send-email-bbhatt@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hemant Kumar Driver is using zero initialized intmod value from mhi channel when configuring TRE for bei field. This prevents interrupt moderation to take effect in case it is supported by an event ring. Fix this by copying intmod value from associated event ring to mhi channel upon registering mhi controller. Signed-off-by: Hemant Kumar Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo --- drivers/bus/mhi/core/init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index eb2ab05..1a93d24 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -863,6 +863,10 @@ int mhi_register_controller(struct mhi_controller *mhi_cntrl, mutex_init(&mhi_chan->mutex); init_completion(&mhi_chan->completion); rwlock_init(&mhi_chan->lock); + + /* used in setting bei field of TRE */ + mhi_event = &mhi_cntrl->mhi_event[mhi_chan->er_index]; + mhi_chan->intmod = mhi_event->intmod; } if (mhi_cntrl->bounce_buf) { -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project