From nobody Wed Oct 8 15:13:37 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DC1B12BF011 for ; Fri, 27 Jun 2025 11:52:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751025155; cv=none; b=E4a6UhebjBcjHRJJ5R2mmAf+UsjsVZzsAiNythZqKLI8b+4FxtDu7BhAhnGRxK1gzs/6MjsTiQzLduUJ6e3uFdFQrZS/Qk7mz5ItFmIbv+hKOiiMBmJ+SRZOK0Pc+JOyUa6nB/cTzM3d5WKqLa4WGZiZfDdbPA5pL3RKhlidvog= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751025155; c=relaxed/simple; bh=qCJIDHlKgLxVVrOHq7iV9Oickr7qzW4eb+saKaVMpCA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UuvWhThbm6r5+icEYb9XO2nTrsHtn3TFN8r22haE08mn6JArmYgMvkYJ2SXTBZ+ivtm692iOTnKas8dtJlQk4mQRH76geCXDILFaVm/k/eXa4Rg4FJFNubXkxFAJ9cWJV1fvGAnJ0KNlvAjzuyO5SXVf/DIogpF7BRbO7jYYrDM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 393E91A00; Fri, 27 Jun 2025 04:52:16 -0700 (PDT) Received: from e132581.arm.com (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EB0703F58B; Fri, 27 Jun 2025 04:52:31 -0700 (PDT) From: Leo Yan Date: Fri, 27 Jun 2025 12:51:54 +0100 Subject: [PATCH v4 08/10] coresight: Refactor driver data allocation Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250627-arm_cs_fix_clock_v4-v4-8-0ce0009c38f8@arm.com> References: <20250627-arm_cs_fix_clock_v4-v4-0-0ce0009c38f8@arm.com> In-Reply-To: <20250627-arm_cs_fix_clock_v4-v4-0-0ce0009c38f8@arm.com> To: Suzuki K Poulose , Mike Leach , James Clark , Anshuman Khandual , Alexander Shishkin , Greg Kroah-Hartman Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Leo Yan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1751025136; l=6103; i=leo.yan@arm.com; s=20250604; h=from:subject:message-id; bh=qCJIDHlKgLxVVrOHq7iV9Oickr7qzW4eb+saKaVMpCA=; b=/yOmOXE0EpVTbZZ/v2wdZ6bRrIyUBlfR30WcISMGimxVGxYIVOBfz/st7QGgBJxiDwSWSTwg5 4M8s80vQPZ2DRo2nFkGry95BFuzO9S+Y9ueGOJEYW799aytXVsn/0Lm X-Developer-Key: i=leo.yan@arm.com; a=ed25519; pk=k4BaDbvkCXzBFA7Nw184KHGP5thju8lKqJYIrOWxDhI= The driver data no longer needs to be allocated separately in the static and dynamic probes. Moved the allocation into the low-level functions to avoid code duplication. Signed-off-by: Leo Yan Reviewed-by: Anshuman Khandual --- drivers/hwtracing/coresight/coresight-catu.c | 20 +++++++------------- drivers/hwtracing/coresight/coresight-cpu-debug.c | 21 +++++++------------= -- drivers/hwtracing/coresight/coresight-tmc-core.c | 20 +++++++------------- 3 files changed, 21 insertions(+), 40 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-catu.c b/drivers/hwtraci= ng/coresight/coresight-catu.c index 0f476a0cbd740c233d039c5c411ca192681e2023..a3ccb7034ae14d7339bc2549bcc= adf11e28c45e2 100644 --- a/drivers/hwtracing/coresight/coresight-catu.c +++ b/drivers/hwtracing/coresight/coresight-catu.c @@ -515,11 +515,17 @@ static int __catu_probe(struct device *dev, struct re= source *res) { int ret =3D 0; u32 dma_mask; - struct catu_drvdata *drvdata =3D dev_get_drvdata(dev); + struct catu_drvdata *drvdata; struct coresight_desc catu_desc; struct coresight_platform_data *pdata =3D NULL; void __iomem *base; =20 + drvdata =3D devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + dev_set_drvdata(dev, drvdata); + ret =3D coresight_get_enable_clocks(dev, &drvdata->pclk, &drvdata->atclk); if (ret) return ret; @@ -580,14 +586,8 @@ static int __catu_probe(struct device *dev, struct res= ource *res) =20 static int catu_probe(struct amba_device *adev, const struct amba_id *id) { - struct catu_drvdata *drvdata; int ret; =20 - drvdata =3D devm_kzalloc(&adev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - amba_set_drvdata(adev, drvdata); ret =3D __catu_probe(&adev->dev, &adev->res); if (!ret) pm_runtime_put(&adev->dev); @@ -627,18 +627,12 @@ static struct amba_driver catu_driver =3D { static int catu_platform_probe(struct platform_device *pdev) { struct resource *res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); - struct catu_drvdata *drvdata; int ret =3D 0; =20 - drvdata =3D devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); =20 - dev_set_drvdata(&pdev->dev, drvdata); ret =3D __catu_probe(&pdev->dev, res); pm_runtime_put(&pdev->dev); if (ret) diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hw= tracing/coresight/coresight-cpu-debug.c index 5f6db2fb95d4623a0bab08828ae00442870abd7d..3edfb5d3d02056afcaab4da575d= 1101c68aeac80 100644 --- a/drivers/hwtracing/coresight/coresight-cpu-debug.c +++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c @@ -562,10 +562,16 @@ static void debug_func_exit(void) =20 static int __debug_probe(struct device *dev, struct resource *res) { - struct debug_drvdata *drvdata =3D dev_get_drvdata(dev); + struct debug_drvdata *drvdata; void __iomem *base; int ret; =20 + drvdata =3D devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + dev_set_drvdata(dev, drvdata); + ret =3D coresight_get_enable_clocks(dev, &drvdata->pclk, NULL); if (ret) return ret; @@ -629,13 +635,6 @@ static int __debug_probe(struct device *dev, struct re= source *res) =20 static int debug_probe(struct amba_device *adev, const struct amba_id *id) { - struct debug_drvdata *drvdata; - - drvdata =3D devm_kzalloc(&adev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - amba_set_drvdata(adev, drvdata); return __debug_probe(&adev->dev, &adev->res); } =20 @@ -694,14 +693,8 @@ static struct amba_driver debug_driver =3D { static int debug_platform_probe(struct platform_device *pdev) { struct resource *res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); - struct debug_drvdata *drvdata; int ret =3D 0; =20 - drvdata =3D devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - dev_set_drvdata(&pdev->dev, drvdata); pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); diff --git a/drivers/hwtracing/coresight/coresight-tmc-core.c b/drivers/hwt= racing/coresight/coresight-tmc-core.c index ead3f5358d411b1d9e45f87986bd85cbe5be720a..e5ab4a0323354d826c831f68c71= d81808cbcd8ff 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-core.c +++ b/drivers/hwtracing/coresight/coresight-tmc-core.c @@ -785,10 +785,16 @@ static int __tmc_probe(struct device *dev, struct res= ource *res) u32 devid; void __iomem *base; struct coresight_platform_data *pdata =3D NULL; - struct tmc_drvdata *drvdata =3D dev_get_drvdata(dev); + struct tmc_drvdata *drvdata; struct coresight_desc desc =3D { 0 }; struct coresight_dev_list *dev_list =3D NULL; =20 + drvdata =3D devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + dev_set_drvdata(dev, drvdata); + ret =3D coresight_get_enable_clocks(dev, &drvdata->pclk, &drvdata->atclk); if (ret) return ret; @@ -898,14 +904,8 @@ static int __tmc_probe(struct device *dev, struct reso= urce *res) =20 static int tmc_probe(struct amba_device *adev, const struct amba_id *id) { - struct tmc_drvdata *drvdata; int ret; =20 - drvdata =3D devm_kzalloc(&adev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - amba_set_drvdata(adev, drvdata); ret =3D __tmc_probe(&adev->dev, &adev->res); if (!ret) pm_runtime_put(&adev->dev); @@ -982,14 +982,8 @@ static struct amba_driver tmc_driver =3D { static int tmc_platform_probe(struct platform_device *pdev) { struct resource *res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); - struct tmc_drvdata *drvdata; int ret =3D 0; =20 - drvdata =3D devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - dev_set_drvdata(&pdev->dev, drvdata); pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); --=20 2.34.1