[PATCH v4 13/17] iommu/mediatek: Use module_platform_driver

[Yong Wu <yong.wu@xxxxxxxxxxxx>]

MediaTek IOMMU should wait for smi larb which need wait for the
power domain(mtk-scpsys.c) and the multimedia ccf, both are module
init. Thus, subsys_initcall for MediaTek IOMMU is not helpful.
Switch to module_platform_driver.

Correspondingly, add the module license information.

Signed-off-by: Yong Wu <yong.wu@xxxxxxxxxxxx>
---
for iommu v1: honghui's mail address is not valid now. I will be
responsible for that file too, So I add myself in it.
---
 drivers/iommu/mtk_iommu.c    | 18 ++++++------------
 drivers/iommu/mtk_iommu_v1.c | 12 +++++++-----
 2 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 5c3a6ba..0740ca9 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -15,6 +15,7 @@
 #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>
@@ -823,16 +824,9 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
 		.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_AUTHOR("Yong Wu <yong.wu@xxxxxxxxxxxx>");
+MODULE_ALIAS("platform:MediaTek-M4U");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 26b6c79..0852cb3 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -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>
@@ -711,9 +712,10 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
 		.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_AUTHOR("Yong Wu <yong.wu@xxxxxxxxxxxx>");
+MODULE_AUTHOR("Honghui Zhang <honghui.zhang@xxxxxxxxxxxx>");
+MODULE_ALIAS("platform:MediaTek-M4U-v1");
+MODULE_LICENSE("GPL v2");
-- 
1.9.1