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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 59C7FC47258 for ; Tue, 23 Jan 2024 05:47:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=i/rXjqKWVkDEuAURgofWd1GxoI8OwA8sexzjcYVy6B0=; b=qmGncShGOks+LX r/CwvxGNtmupvEbTjyKRDdde3UBpfSxo3LDjiQnCR0fyIy+aQ+DRVvcerqqMwOvU6swjCRtyDy2x6 Vvcx6d6ZkSmIIFM3FQ1yDtNYdc5ij0zh/KI5/gXr1MMwPVclu7Jua2I4Jl82X7SkXz9gFtiRKiLNl eIq1xlQMxCqtotYwGImbjDmBOvUTZDqoB2SvaEF9AvsuY0gLoDpoKUOjOyhZwLa6OXrz2rYwERDF3 nqEYjiBHcEqQoSeJtVQaV7XtNHf3wOUeCrVR9VkCOkmzXayPE/UcqDHWyZ4dxcQw6nN/eJMdHMFPJ el8mi9Avr/ENprBgvK6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rS9ch-00FB2i-34; Tue, 23 Jan 2024 05:46:59 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rS9cZ-00FAzD-0V for linux-arm-kernel@lists.infradead.org; Tue, 23 Jan 2024 05:46:52 +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 572691FB; Mon, 22 Jan 2024 21:47:34 -0800 (PST) Received: from a077893.arm.com (unknown [10.163.40.228]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2D3203F762; Mon, 22 Jan 2024 21:46:43 -0800 (PST) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com Cc: Anshuman Khandual , Lorenzo Pieralisi , Sudeep Holla , Mike Leach , James Clark , Maxime Coquelin , Alexandre Torgue , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-stm32@st-md-mailman.stormreply.com, Leo Yan , Alexander Shishkin Subject: [PATCH V4 04/11] coresight: Add helpers registering/removing both AMBA and platform drivers Date: Tue, 23 Jan 2024 11:16:01 +0530 Message-Id: <20240123054608.1790189-5-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240123054608.1790189-1-anshuman.khandual@arm.com> References: <20240123054608.1790189-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240122_214651_289265_02A12C14 X-CRM114-Status: GOOD ( 11.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds two different helpers i.e coresight_init_driver()/remove_driver() enabling coresight devices to register or remove AMBA and platform drivers. Cc: Suzuki K Poulose Cc: Mike Leach Cc: James Clark Cc: Leo Yan Cc: Alexander Shishkin Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org Signed-off-by: Anshuman Khandual --- drivers/hwtracing/coresight/coresight-core.c | 29 ++++++++++++++++++++ include/linux/coresight.h | 7 +++++ 2 files changed, 36 insertions(+) diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index d7f0e231feb9..4e897cc5da81 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -1836,6 +1836,35 @@ static void __exit coresight_exit(void) module_init(coresight_init); module_exit(coresight_exit); +int coresight_init_driver(const char *drv, struct amba_driver *amba_drv, + struct platform_driver *pdev_drv) +{ + int ret; + + ret = amba_driver_register(amba_drv); + if (ret) { + pr_err("%s: error registering AMBA driver\n", drv); + return ret; + } + + ret = platform_driver_register(pdev_drv); + if (!ret) + return 0; + + pr_err("%s: error registering platform driver\n", drv); + amba_driver_unregister(amba_drv); + return ret; +} +EXPORT_SYMBOL_GPL(coresight_init_driver); + +void coresight_remove_driver(struct amba_driver *amba_drv, + struct platform_driver *pdev_drv) +{ + amba_driver_unregister(amba_drv); + platform_driver_unregister(pdev_drv); +} +EXPORT_SYMBOL_GPL(coresight_remove_driver); + MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Pratik Patel "); MODULE_AUTHOR("Mathieu Poirier "); diff --git a/include/linux/coresight.h b/include/linux/coresight.h index a4cb7dd6ca23..7e1646d4863c 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -12,6 +12,8 @@ #include #include #include +#include +#include /* Peripheral id registers (0xFD0-0xFEC) */ #define CORESIGHT_PERIPHIDR4 0xfd0 @@ -598,6 +600,11 @@ void coresight_relaxed_write64(struct coresight_device *csdev, u64 val, u32 offset); void coresight_write64(struct coresight_device *csdev, u64 val, u32 offset); +int coresight_init_driver(const char *drv, struct amba_driver *amba_drv, + struct platform_driver *pdev_drv); + +void coresight_remove_driver(struct amba_driver *amba_drv, + struct platform_driver *pdev_drv); #else static inline struct coresight_device * coresight_register(struct coresight_desc *desc) { return NULL; } -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel