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Fri, 17 Jul 2020 05:47:06 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 014F9C433C6; Fri, 17 Jul 2020 05:47:05 +0000 (UTC) Received: from tingweiz-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tingwei) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9662EC43391; Fri, 17 Jul 2020 05:47:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9662EC43391 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=tingwei@codeaurora.org From: Tingwei Zhang To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin Subject: [PATCH v3 14/20] coresight: allow funnel and replicator drivers to be built as modules Date: Fri, 17 Jul 2020 13:45:30 +0800 Message-Id: <20200717054536.7052-15-tingwei@codeaurora.org> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20200717054536.7052-1-tingwei@codeaurora.org> References: <20200717054536.7052-1-tingwei@codeaurora.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200717_014712_104515_9433CC6C X-CRM114-Status: GOOD ( 19.63 ) 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: tsoni@codeaurora.org, Sai Prakash Ranjan , Kim Phillips , Mao Jinlong , Suzuki K Poulose , Greg Kroah-Hartman , coresight@lists.linaro.org, Randy Dunlap , Mian Yousaf Kaukab , Russell King , Tingwei Zhang , Leo Yan , linux-arm-kernel@lists.infradead.org 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 From: Kim Phillips Allow to build coresight-funnel and coresight-replicator as modules, for ease of development. - Kconfig becomes a tristate, to allow =m - add funnel_remove and replicator_remove functions, for module unload - add a MODULE_DEVICE_TABLE for autoloading on boot Cc: Mathieu Poirier Cc: Leo Yan Cc: Alexander Shishkin Cc: Randy Dunlap Cc: Suzuki K Poulose Cc: Greg Kroah-Hartman Cc: Russell King Signed-off-by: Kim Phillips Signed-off-by: Tingwei Zhang --- drivers/hwtracing/coresight/Kconfig | 5 ++- .../hwtracing/coresight/coresight-funnel.c | 32 ++++++++++++++++++ .../coresight/coresight-replicator.c | 33 +++++++++++++++++++ 3 files changed, 69 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index fc48ae086746..f31778dd0b5d 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -17,13 +17,16 @@ menuconfig CORESIGHT if CORESIGHT config CORESIGHT_LINKS_AND_SINKS - bool "CoreSight Link and Sink drivers" + tristate "CoreSight Link and Sink drivers" help This enables support for CoreSight link and sink drivers that are responsible for transporting and collecting the trace data respectively. Link and sinks are dynamically aggregated with a trace entity at run time to form a complete trace path. + To compile these drivers as modules, choose M here: the + modules will be called coresight-funnel and coresight-replicator. + config CORESIGHT_LINK_AND_SINK_TMC tristate "Coresight generic TMC driver" diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c index 46b277ed8606..062694ef9879 100644 --- a/drivers/hwtracing/coresight/coresight-funnel.c +++ b/drivers/hwtracing/coresight/coresight-funnel.c @@ -274,6 +274,15 @@ static int funnel_probe(struct device *dev, struct resource *res) return ret; } +static int __exit funnel_remove(struct device *dev) +{ + struct funnel_drvdata *drvdata = dev_get_drvdata(dev); + + coresight_unregister(drvdata->csdev); + + return 0; +} + #ifdef CONFIG_PM static int funnel_runtime_suspend(struct device *dev) { @@ -319,20 +328,31 @@ static int static_funnel_probe(struct platform_device *pdev) return ret; } +static int __exit static_funnel_remove(struct platform_device *pdev) +{ + funnel_remove(&pdev->dev); + pm_runtime_disable(&pdev->dev); + return 0; +} + static const struct of_device_id static_funnel_match[] = { {.compatible = "arm,coresight-static-funnel"}, {} }; +MODULE_DEVICE_TABLE(of, static_funnel_match); + #ifdef CONFIG_ACPI static const struct acpi_device_id static_funnel_ids[] = { {"ARMHC9FE", 0}, {}, }; +MODULE_DEVICE_TABLE(acpi, static_funnel_ids); #endif static struct platform_driver static_funnel_driver = { .probe = static_funnel_probe, + .probe = static_funnel_remove, .driver = { .name = "coresight-static-funnel", .of_match_table = static_funnel_match, @@ -348,6 +368,11 @@ static int dynamic_funnel_probe(struct amba_device *adev, return funnel_probe(&adev->dev, &adev->res); } +static int __exit dynamic_funnel_remove(struct amba_device *adev) +{ + return funnel_remove(&adev->dev); +} + static const struct amba_id dynamic_funnel_ids[] = { { .id = 0x000bb908, @@ -361,6 +386,8 @@ static const struct amba_id dynamic_funnel_ids[] = { { 0, 0}, }; +MODULE_DEVICE_TABLE(amba, dynamic_funnel_ids); + static struct amba_driver dynamic_funnel_driver = { .drv = { .name = "coresight-dynamic-funnel", @@ -369,6 +396,7 @@ static struct amba_driver dynamic_funnel_driver = { .suppress_bind_attrs = true, }, .probe = dynamic_funnel_probe, + .remove = dynamic_funnel_remove, .id_table = dynamic_funnel_ids, }; @@ -399,3 +427,7 @@ static void __exit funnel_exit(void) module_init(funnel_init); module_exit(funnel_exit); + +MODULE_AUTHOR("Mathieu Poirier "); +MODULE_DESCRIPTION("Arm CoreSight Funnel Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c index 32ee3497d018..463a99dec778 100644 --- a/drivers/hwtracing/coresight/coresight-replicator.c +++ b/drivers/hwtracing/coresight/coresight-replicator.c @@ -270,6 +270,14 @@ static int replicator_probe(struct device *dev, struct resource *res) return ret; } +static int __exit replicator_remove(struct device *dev) +{ + struct replicator_drvdata *drvdata = dev_get_drvdata(dev); + + coresight_unregister(drvdata->csdev); + return 0; +} + static int static_replicator_probe(struct platform_device *pdev) { int ret; @@ -289,6 +297,13 @@ static int static_replicator_probe(struct platform_device *pdev) return ret; } +static int __exit static_replicator_remove(struct platform_device *pdev) +{ + replicator_remove(&pdev->dev); + pm_runtime_disable(&pdev->dev); + return 0; +} + #ifdef CONFIG_PM static int replicator_runtime_suspend(struct device *dev) { @@ -321,18 +336,22 @@ static const struct of_device_id static_replicator_match[] = { {.compatible = "arm,coresight-static-replicator"}, {} }; +MODULE_DEVICE_TABLE(of, static_replicator_match); #ifdef CONFIG_ACPI static const struct acpi_device_id static_replicator_acpi_ids[] = { {"ARMHC985", 0}, /* ARM CoreSight Static Replicator */ {} }; +MODULE_DEVICE_TABLE(acpi, static_replicator_acpi_ids); #endif static struct platform_driver static_replicator_driver = { .probe = static_replicator_probe, + .remove = static_replicator_remove, .driver = { .name = "coresight-static-replicator", + .owner = THIS_MODULE, .of_match_table = of_match_ptr(static_replicator_match), .acpi_match_table = ACPI_PTR(static_replicator_acpi_ids), .pm = &replicator_dev_pm_ops, @@ -346,6 +365,11 @@ static int dynamic_replicator_probe(struct amba_device *adev, return replicator_probe(&adev->dev, &adev->res); } +static int __exit dynamic_replicator_remove(struct amba_device *adev) +{ + return replicator_remove(&adev->dev); +} + static const struct amba_id dynamic_replicator_ids[] = { { .id = 0x000bb909, @@ -359,13 +383,17 @@ static const struct amba_id dynamic_replicator_ids[] = { { 0, 0 }, }; +MODULE_DEVICE_TABLE(amba, dynamic_replicator_ids); + static struct amba_driver dynamic_replicator_driver = { .drv = { .name = "coresight-dynamic-replicator", .pm = &replicator_dev_pm_ops, + .owner = THIS_MODULE, .suppress_bind_attrs = true, }, .probe = dynamic_replicator_probe, + .remove = dynamic_replicator_remove, .id_table = dynamic_replicator_ids, }; @@ -396,3 +424,8 @@ static void __exit replicator_exit(void) module_init(replicator_init); module_exit(replicator_exit); + +MODULE_AUTHOR("Pratik Patel "); +MODULE_AUTHOR("Mathieu Poirier "); +MODULE_DESCRIPTION("Arm CoreSight Replicator Driver"); +MODULE_LICENSE("GPL v2"); -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel