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| author | Yong Wu <yong.wu@mediatek.com> | 2021-03-26 06:23:37 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-04-07 11:33:58 +0300 |
| commit | 18d8c74ec5987a78bd1e9c1c629dfdd04a151a89 (patch) | |
| tree | 7e8973f577e28acb970000187deabb26f7c3576b /drivers/iommu/mtk_iommu.c | |
| parent | 8de000cf0265eaa4f63aff9f2c7a3876d2dda9b6 (diff) | |
| download | linux-18d8c74ec5987a78bd1e9c1c629dfdd04a151a89.tar.xz | |
iommu/mediatek: Allow building as module
The IOMMU in many SoC depends on the MM clocks and power-domain which
are device_initcall normally, thus the subsys_init here is not helpful.
This patch switches it to module_platform_driver which also allow the
driver built as module.
Correspondingly switch the config to tristate, and update the
iommu_ops's owner.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Link: https://lore.kernel.org/r/20210326032337.24578-2-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 | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 6ecc007f07cd..75375935f301 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -17,6 +17,7 @@ #include <linux/iopoll.h> #include <linux/list.h> #include <linux/mfd/syscon.h> +#include <linux/module.h> #include <linux/of_address.h> #include <linux/of_iommu.h> #include <linux/of_irq.h> @@ -683,6 +684,7 @@ static const struct iommu_ops mtk_iommu_ops = { .get_resv_regions = mtk_iommu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions, .pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M, + .owner = THIS_MODULE, }; static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) @@ -1079,16 +1081,7 @@ static struct platform_driver mtk_iommu_driver = { .pm = &mtk_iommu_pm_ops, } }; +module_platform_driver(mtk_iommu_driver); -static int __init mtk_iommu_init(void) -{ - int ret; - - ret = platform_driver_register(&mtk_iommu_driver); - if (ret != 0) - pr_err("Failed to register MTK IOMMU driver\n"); - - return ret; -} - -subsys_initcall(mtk_iommu_init) +MODULE_DESCRIPTION("IOMMU API for MediaTek M4U implementations"); +MODULE_LICENSE("GPL v2"); |