From patchwork Wed Jul 22 17:20:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 11679035 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 5E2A71510 for ; Wed, 22 Jul 2020 17:25:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2776D20781 for ; Wed, 22 Jul 2020 17:25:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="rxg8Bj5U" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2776D20781 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=JneO29hN9dIC6Leni3uOWhPAhuN5m84nm9HsqjkvunA=; b=rxg8Bj5UG1WdymevyQX20kanZ 3/KFUOXCDMKp8IQ/HWaCG6trjdM/nMXcjfy/LzGtVXmHAB4GYkz07qePvfdHpUVHKNvJTS4V3HQkf KpiLX8d4GaXunZT7f0qMfz8SrNMgq8wa/yNlpVMuD5+0Q/3WNt+Wqc6Oj5ulQgx/XW/qW4CCQlquK FBkRjKRlKooVOsQFvvav9SFVNIJyKQG4WvXnuJ71/wawYmE8KVXclJz3RcLncgaFK0Rl2Ml0j1OwL r8kOdglf6TyihfrCKDwh8r4tASWrDAV4Nqn6ELLKClk7syZB92sSPppe0k7UD0kWRRANPs4jLtTvd UF31WWyyA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyISJ-0008TQ-4O; Wed, 22 Jul 2020 17:22:59 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyIQY-0007kV-R8 for linux-arm-kernel@lists.infradead.org; Wed, 22 Jul 2020 17:21:22 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1F311147A; Wed, 22 Jul 2020 10:21:10 -0700 (PDT) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 393DA3F66F; Wed, 22 Jul 2020 10:21:09 -0700 (PDT) From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH 13/14] coresight: etm4x: Add support for sysreg only devices Date: Wed, 22 Jul 2020 18:20:39 +0100 Message-Id: <20200722172040.1299289-14-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200722172040.1299289-1-suzuki.poulose@arm.com> References: <20200722172040.1299289-1-suzuki.poulose@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200722_132111_006161_8DD4A773 X-CRM114-Status: GOOD ( 11.52 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: coresight@lists.linaro.org, Suzuki K Poulose , linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, mike.leach@linaro.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add support for etms without memory mapped access. Cc: Mathieu Poirier Cc: Mike Leach Signed-off-by: Suzuki K Poulose --- drivers/hwtracing/coresight/coresight-etm4x.c | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c index e91af23ac419..88ec89629507 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.c +++ b/drivers/hwtracing/coresight/coresight-etm4x.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -1687,6 +1688,11 @@ static int etm4_probe_amba(struct amba_device *adev, const struct amba_id *id) return ret; } +static int etm4_4_probe(struct platform_device *pdev) +{ + return etm4_probe_common(&pdev->dev, NULL); +} + static struct amba_cs_uci_id uci_id_etm4[] = { { /* ETMv4 UCI data */ @@ -1722,3 +1728,18 @@ static struct amba_driver etm4x_driver = { .id_table = etm4_ids, }; builtin_amba_driver(etm4x_driver); + +static const struct of_device_id etm4_4_match[] = { + { .compatible = "arm,coresight-etm-v4.4" }, + {} +}; + +static struct platform_driver etm4_4_driver = { + .probe = etm4_4_probe, + .driver = { + .name = "coresight-etm4x", + .of_match_table = etm4_4_match, + .suppress_bind_attrs = true, + }, +}; +builtin_platform_driver(etm4_4_driver);