Initialize all structures and register to iommu subsystem only on Exynos compatible platforms.
Signed-off-by: Marek Szyprowski <[email protected]> Acked-by: Arnd Bergmann <[email protected]> --- drivers/iommu/exynos-iommu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 7423318..a77350e 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -20,6 +20,7 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/mm.h> +#include <linux/of.h> #include <linux/iommu.h> #include <linux/errno.h> #include <linux/list.h> @@ -1188,6 +1189,11 @@ static int __init exynos_iommu_init(void) { int ret; + if (!of_machine_is_compatible("samsung,exynos3") && + !of_machine_is_compatible("samsung,exynos4") && + !of_machine_is_compatible("samsung,exynos5")) + return -ENODEV; + lv2table_kmem_cache = kmem_cache_create("exynos-iommu-lv2table", LV2TABLE_SIZE, LV2TABLE_SIZE, 0, NULL); if (!lv2table_kmem_cache) { -- 1.9.2 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
