Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753892AbcKUKBD (ORCPT ); Mon, 21 Nov 2016 05:01:03 -0500 Received: from foss.arm.com ([217.140.101.70]:54694 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753826AbcKUKBA (ORCPT ); Mon, 21 Nov 2016 05:01:00 -0500 From: Lorenzo Pieralisi To: iommu@lists.linux-foundation.org Cc: Lorenzo Pieralisi , Will Deacon , Hanjun Guo , Robin Murphy , Marc Zyngier , Joerg Roedel , "Rafael J. Wysocki" , Tomasz Nowicki , Jon Masters , Eric Auger , Sinan Kaya , Nate Watterson , Prem Mallappa , Dennis Chen , linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v9 05/16] drivers: iommu: arm-smmu: convert struct device of_node to fwnode usage Date: Mon, 21 Nov 2016 10:01:37 +0000 Message-Id: <20161121100148.24769-6-lorenzo.pieralisi@arm.com> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20161121100148.24769-1-lorenzo.pieralisi@arm.com> References: <20161121100148.24769-1-lorenzo.pieralisi@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2291 Lines: 64 Current ARM SMMU driver rely on the struct device.of_node pointer for device look-up and iommu_ops retrieval. In preparation for ACPI probing enablement, convert the driver to use the struct device.fwnode member for device and iommu_ops look-up so that the driver infrastructure can be used also on systems that do not associate an of_node pointer to a struct device (eg ACPI), making the device look-up and iommu_ops retrieval firmware agnostic. Signed-off-by: Lorenzo Pieralisi Acked-by: Will Deacon Reviewed-by: Robin Murphy Reviewed-by: Tomasz Nowicki Tested-by: Hanjun Guo Tested-by: Tomasz Nowicki Cc: Will Deacon Cc: Hanjun Guo Cc: Robin Murphy --- drivers/iommu/arm-smmu.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 8f72814..339a8d3 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1379,13 +1379,14 @@ static bool arm_smmu_capable(enum iommu_cap cap) static int arm_smmu_match_node(struct device *dev, void *data) { - return dev->of_node == data; + return dev->fwnode == data; } -static struct arm_smmu_device *arm_smmu_get_by_node(struct device_node *np) +static +struct arm_smmu_device *arm_smmu_get_by_fwnode(struct fwnode_handle *fwnode) { struct device *dev = driver_find_device(&arm_smmu_driver.driver, NULL, - np, arm_smmu_match_node); + fwnode, arm_smmu_match_node); put_device(dev); return dev ? dev_get_drvdata(dev) : NULL; } @@ -1403,7 +1404,7 @@ static int arm_smmu_add_device(struct device *dev) if (ret) goto out_free; } else if (fwspec && fwspec->ops == &arm_smmu_ops) { - smmu = arm_smmu_get_by_node(to_of_node(fwspec->iommu_fwnode)); + smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode); } else { return -ENODEV; } @@ -2007,7 +2008,7 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev) } } - of_iommu_set_ops(dev->of_node, &arm_smmu_ops); + iommu_register_instance(dev->fwnode, &arm_smmu_ops); platform_set_drvdata(pdev, smmu); arm_smmu_device_reset(smmu); -- 2.10.0