diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_iommu.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_iommu.c | 20 |
1 files changed, 2 insertions, 18 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c index d4ec7465e9cc..055e8ec2ef21 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c @@ -87,10 +87,8 @@ int drm_iommu_attach_device(struct drm_device *drm_dev, struct device *dev = drm_dev->dev; int ret; - if (!dev->archdata.mapping) { - DRM_ERROR("iommu_mapping is null.\n"); - return -EFAULT; - } + if (!dev->archdata.mapping) + return 0; subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev, sizeof(*subdrv_dev->dma_parms), @@ -144,17 +142,3 @@ void drm_iommu_detach_device(struct drm_device *drm_dev, iommu_detach_device(mapping->domain, subdrv_dev); drm_release_iommu_mapping(drm_dev); } - -int drm_iommu_attach_device_if_possible(struct exynos_drm_crtc *exynos_crtc, - struct drm_device *drm_dev, struct device *subdrv_dev) -{ - int ret = 0; - - if (is_drm_iommu_supported(drm_dev)) { - if (exynos_crtc->ops->clear_channels) - exynos_crtc->ops->clear_channels(exynos_crtc); - return drm_iommu_attach_device(drm_dev, subdrv_dev); - } - - return ret; -} |