From patchwork Wed Apr 29 20:52:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 11518381 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3195E92C for ; Wed, 29 Apr 2020 20:52:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 081C121D7A for ; Wed, 29 Apr 2020 20:52:43 +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="RospaieU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726481AbgD2Uwl (ORCPT ); Wed, 29 Apr 2020 16:52:41 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:19546 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726511AbgD2Uwl (ORCPT ); Wed, 29 Apr 2020 16:52:41 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588193560; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=S8Czkw5iBw3aULecGOLr1b5SztSn4x9w4q37LFEIgxA=; b=RospaieU1tt5THvldM9TYeuaVdHN9G8nwSQPYFHvCLVgrS16rModVqXmGHMdrq+ObSo4ZsKk tHn/5r0hNpk3XoLbsmBnh+wmlw5ZGu9v3C1uBwH8bWDJpMbc7Kf2HeHYVH7rD4+h9tAqkuJF WQPMaQq924aXj5C06oPPW7FyKd0= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== 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 5ea9e917.7f0f7f1e9688-smtp-out-n01; Wed, 29 Apr 2020 20:52:39 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id C13EDC43637; Wed, 29 Apr 2020 20:52:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 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 1EDB8C432C2; Wed, 29 Apr 2020 20:52:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1EDB8C432C2 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 v3 2/9] bus: mhi: core: Cache intmod from mhi event to mhi channel Date: Wed, 29 Apr 2020 13:52:24 -0700 Message-Id: <1588193551-31439-3-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1588193551-31439-1-git-send-email-bbhatt@codeaurora.org> References: <1588193551-31439-1-git-send-email-bbhatt@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 b38359c..4dc7f22 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -864,6 +864,10 @@ 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) {