diff options
| -rw-r--r-- | drivers/gpu/host1x/dev.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/host1x/dev.h | 1 |
2 files changed, 16 insertions, 7 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 1f916b579e95..03db71173f5d 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -218,19 +218,24 @@ static int host1x_probe(struct platform_device *pdev) return err; } - if (iommu_present(&platform_bus_type)) { + host->group = iommu_group_get(&pdev->dev); + if (host->group) { struct iommu_domain_geometry *geometry; unsigned long order; host->domain = iommu_domain_alloc(&platform_bus_type); - if (!host->domain) - return -ENOMEM; + if (!host->domain) { + err = -ENOMEM; + goto put_group; + } - err = iommu_attach_device(host->domain, &pdev->dev); + err = iommu_attach_group(host->domain, host->group); if (err) { if (err == -ENODEV) { iommu_domain_free(host->domain); host->domain = NULL; + iommu_group_put(host->group); + host->group = NULL; goto skip_iommu; } @@ -296,13 +301,15 @@ fail_unprepare_disable: fail_free_channels: host1x_channel_list_free(&host->channel_list); fail_detach_device: - if (host->domain) { + if (host->group && host->domain) { put_iova_domain(&host->iova); - iommu_detach_device(host->domain, &pdev->dev); + iommu_detach_group(host->domain, host->group); } fail_free_domain: if (host->domain) iommu_domain_free(host->domain); +put_group: + iommu_group_put(host->group); return err; } @@ -319,8 +326,9 @@ static int host1x_remove(struct platform_device *pdev) if (host->domain) { put_iova_domain(&host->iova); - iommu_detach_device(host->domain, &pdev->dev); + iommu_detach_group(host->domain, host->group); iommu_domain_free(host->domain); + iommu_group_put(host->group); } return 0; diff --git a/drivers/gpu/host1x/dev.h b/drivers/gpu/host1x/dev.h index 502769726480..43e9fabb43a1 100644 --- a/drivers/gpu/host1x/dev.h +++ b/drivers/gpu/host1x/dev.h @@ -117,6 +117,7 @@ struct host1x { struct clk *clk; struct reset_control *rst; + struct iommu_group *group; struct iommu_domain *domain; struct iova_domain iova; dma_addr_t iova_end; |