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-rw-r--r--drivers/gpu/host1x/bus.c2
-rw-r--r--drivers/gpu/host1x/dev.c13
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c
index 815bdb42e3f0..b4c385d4a6af 100644
--- a/drivers/gpu/host1x/bus.c
+++ b/drivers/gpu/host1x/bus.c
@@ -331,7 +331,7 @@ static const struct dev_pm_ops host1x_device_pm_ops = {
struct bus_type host1x_bus_type = {
.name = "host1x",
.match = host1x_device_match,
- .dma_configure = host1x_dma_configure,
+ .dma_configure = host1x_dma_configure,
.pm = &host1x_device_pm_ops,
};
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index d88073e7d22d..de6bc4e7fa23 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -29,6 +29,10 @@
#include <trace/events/host1x.h>
#undef CREATE_TRACE_POINTS
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+#include <asm/dma-iommu.h>
+#endif
+
#include "bus.h"
#include "channel.h"
#include "debug.h"
@@ -217,7 +221,14 @@ static int host1x_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to get reset: %d\n", err);
return err;
}
-
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+ if (host->dev->archdata.mapping) {
+ struct dma_iommu_mapping *mapping =
+ to_dma_iommu_mapping(host->dev);
+ arm_iommu_detach_device(host->dev);
+ arm_iommu_release_mapping(mapping);
+ }
+#endif
if (IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL))
goto skip_iommu;