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iommu/mediatek-v1: Allow building as module 

This patch only adds support for building the IOMMU-v1 driver as module.
Correspondingly switch the config to tristate and update the iommu_ops's
owner to THIS_MODULE.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Link: https://lore.kernel.org/r/20210326032337.24578-1-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yong Wu 2021-03-26 11:23:36 +08:00 committed by Joerg Roedel
parent 1e28eed176
commit 8de000cf02
2 changed files with 6 additions and 6 deletions
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2
drivers/iommu/Kconfig
View File

@ -364,7 +364,7 @@ config MTK_IOMMU
If unsure, say N here.
config MTK_IOMMU_V1
bool "MTK IOMMU Version 1 (M4U gen1) Support"
tristate "MediaTek IOMMU Version 1 (M4U gen1) Support"
depends on ARM
depends on ARCH_MEDIATEK || COMPILE_TEST
select ARM_DMA_USE_IOMMU

10
drivers/iommu/mtk_iommu_v1.c
View File

@ -20,6 +20,7 @@
#include <linux/iommu.h>
#include <linux/iopoll.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_iommu.h>
#include <linux/of_irq.h>
@ -529,6 +530,7 @@ static const struct iommu_ops mtk_iommu_ops = {
.def_domain_type = mtk_iommu_def_domain_type,
.device_group = generic_device_group,
.pgsize_bitmap = ~0UL << MT2701_IOMMU_PAGE_SHIFT,
.owner = THIS_MODULE,
};
static const struct of_device_id mtk_iommu_of_ids[] = {
@ -691,9 +693,7 @@ static struct platform_driver mtk_iommu_driver = {
.pm = &mtk_iommu_pm_ops,
}
};
module_platform_driver(mtk_iommu_driver);
static int __init m4u_init(void)
{
return platform_driver_register(&mtk_iommu_driver);
}
subsys_initcall(m4u_init);
MODULE_DESCRIPTION("IOMMU API for MediaTek M4U v1 implementations");
MODULE_LICENSE("GPL v2");