[PATCH 16/29] iommu: exynos: make driver multiarch friendly

Marek Szyprowski
2014-08-05T10:52:46Z

Initialize all structures and register to iommu subsystem only on Exynos
compatible platforms.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
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 d037e87..64b3bc8 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>
@@ -1187,6 +1188,11 @@ 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