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| author | Joerg Roedel <jroedel@suse.de> | 2018-11-29 16:01:00 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2018-12-17 12:38:31 +0300 |
| commit | a9bf2eec5a6fc01a0a5250eaf0bf61dfd382a78a (patch) | |
| tree | d8ffec5b126421a7f5809ecc2f91a50c63cb9f9d /drivers/iommu/mtk_iommu.c | |
| parent | df90365580623b5c53cd9a46c14375191123d776 (diff) | |
| download | linux-a9bf2eec5a6fc01a0a5250eaf0bf61dfd382a78a.tar.xz | |
iommu/mediatek: Use helper functions to access dev->iommu_fwspec
Use the new helpers dev_iommu_fwspec_get()/set() to access
the dev->iommu_fwspec pointer. This makes it easier to move
that pointer later into another struct.
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Tested-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
| -rw-r--r-- | drivers/iommu/mtk_iommu.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 44bd5b9166bb..0783fba05d19 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -244,7 +244,7 @@ static void mtk_iommu_config(struct mtk_iommu_data *data, { struct mtk_smi_larb_iommu *larb_mmu; unsigned int larbid, portid; - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); int i; for (i = 0; i < fwspec->num_ids; ++i) { @@ -336,7 +336,7 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, struct device *dev) { struct mtk_iommu_domain *dom = to_mtk_domain(domain); - struct mtk_iommu_data *data = dev->iommu_fwspec->iommu_priv; + struct mtk_iommu_data *data = dev_iommu_fwspec_get(dev)->iommu_priv; if (!data) return -ENODEV; @@ -355,7 +355,7 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, static void mtk_iommu_detach_device(struct iommu_domain *domain, struct device *dev) { - struct mtk_iommu_data *data = dev->iommu_fwspec->iommu_priv; + struct mtk_iommu_data *data = dev_iommu_fwspec_get(dev)->iommu_priv; if (!data) return; @@ -417,13 +417,14 @@ static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain, static int mtk_iommu_add_device(struct device *dev) { + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct mtk_iommu_data *data; struct iommu_group *group; - if (!dev->iommu_fwspec || dev->iommu_fwspec->ops != &mtk_iommu_ops) + if (!fwspec || fwspec->ops != &mtk_iommu_ops) return -ENODEV; /* Not a iommu client device */ - data = dev->iommu_fwspec->iommu_priv; + data = fwspec->iommu_priv; iommu_device_link(&data->iommu, dev); group = iommu_group_get_for_dev(dev); @@ -436,12 +437,13 @@ static int mtk_iommu_add_device(struct device *dev) static void mtk_iommu_remove_device(struct device *dev) { + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct mtk_iommu_data *data; - if (!dev->iommu_fwspec || dev->iommu_fwspec->ops != &mtk_iommu_ops) + if (!fwspec || fwspec->ops != &mtk_iommu_ops) return; - data = dev->iommu_fwspec->iommu_priv; + data = fwspec->iommu_priv; iommu_device_unlink(&data->iommu, dev); iommu_group_remove_device(dev); @@ -468,6 +470,7 @@ static struct iommu_group *mtk_iommu_device_group(struct device *dev) static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args) { + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct platform_device *m4updev; if (args->args_count != 1) { @@ -476,13 +479,13 @@ static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args) return -EINVAL; } - if (!dev->iommu_fwspec->iommu_priv) { + if (!fwspec->iommu_priv) { /* Get the m4u device */ m4updev = of_find_device_by_node(args->np); if (WARN_ON(!m4updev)) return -EINVAL; - dev->iommu_fwspec->iommu_priv = platform_get_drvdata(m4updev); + fwspec->iommu_priv = platform_get_drvdata(m4updev); } return iommu_fwspec_add_ids(dev, args->args, 1); |