From: Inki Dae <inki....@samsung.com>
The iommu will be enabled when fimd sub driver is probed and
will be disabled when removed.
Signed-off-by: Inki Dae <inki....@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index a328379..1f668ff 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -25,6 +25,7 @@
#include "exynos_drm_drv.h"
#include "exynos_drm_fbdev.h"
#include "exynos_drm_crtc.h"
+#include "exynos_drm_iommu.h"
/*
* FIMD is stand for Fully Interactive Mobile Display and
@@ -709,6 +710,10 @@ static int fimd_subdrv_probe(struct drm_device *drm_dev,
struct device *dev)
*/
drm_dev->vblank_disable_allowed = 1;
+ /* attach this sub driver to iommu mapping if supported. */
+ if (is_drm_iommu_supported(drm_dev))
+ drm_iommu_attach_device(drm_dev, dev);
+
return 0;
}
@@ -716,7 +721,9 @@ static void fimd_subdrv_remove(struct drm_device *drm_dev,
struct device *dev)
{
DRM_DEBUG_KMS("%s\n", __FILE__);
- /* TODO. */
+ /* detach this sub driver from iommu mapping if supported. */
+ if (is_drm_iommu_supported(drm_dev))
+ drm_iommu_detach_device(drm_dev, dev);
}
static int fimd_calc_clkdiv(struct fimd_context *ctx,
--
1.8.0.rc3.16.g8ead1bf
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