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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 B3057C433E1 for ; Thu, 14 May 2020 19:58:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 954F02065C for ; Thu, 14 May 2020 19:58:48 +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="Cr/LzUcV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728000AbgENT6r (ORCPT ); Thu, 14 May 2020 15:58:47 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:28479 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728991AbgENT6q (ORCPT ); Thu, 14 May 2020 15:58:46 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589486326; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=uinFiHZJfF96ynk2XThtzqi73Peb6XENqUK6oR8JKRI=; b=Cr/LzUcV2aHZHhbD+nf8Q/VZ30TT+X23kJTawmpW19rtQYR30nbeqYIIAhyc27d4YSTaBAzQ auwLP1loDRoLAkPrgpnKjcdB+osJ9Hj7wZoAvphfdyuUKMiHmeiSN4OA3jIXGmRFc+Y9faL5 nvpxFHz9GnQsGko1gzhyX4bgHRA= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 5ebda2e3aefa5a01ccccf243 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 14 May 2020 19:58:27 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 7D496C44788; Thu, 14 May 2020 19:58:26 +0000 (UTC) Received: from blr-ubuntu-311.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan) by smtp.codeaurora.org (Postfix) with ESMTPSA id 38F05C433D2; Thu, 14 May 2020 19:58:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 38F05C433D2 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=saiprakash.ranjan@codeaurora.org From: Sai Prakash Ranjan To: Mathieu Poirier , Suzuki K Poulose , Mike Leach , devicetree@vger.kernel.org, Rob Herring Cc: Stephen Boyd , Leo Yan , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Tingwei Zhang , coresight@lists.linaro.org, Sai Prakash Ranjan Subject: [PATCHv2 0/2] coresight: etm4x: Add support to skip trace unit power up Date: Fri, 15 May 2020 01:27:54 +0530 Message-Id: X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This series adds support to skip powering up of trace unit on systems with an errata which stops CPU watchdog counter when power up bit is set (TRCPDCR.PU = 1). Setting this bit is not required on Qualcomm Technologies Inc. chipsets where this errata exists since the ETMs are in the same power domain as their respective CPU cores. Tingwei Zhang (2): coresight: etm4x: Add support to skip trace unit power up dt-bindings: arm: coresight: Add support to skip trace unit power up .../devicetree/bindings/arm/coresight.txt | 7 +++++ drivers/hwtracing/coresight/coresight-etm4x.c | 27 ++++++++++++------- drivers/hwtracing/coresight/coresight-etm4x.h | 3 +++ 3 files changed, 27 insertions(+), 10 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation