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authorThierry Reding <treding@nvidia.com>2019-12-03 19:19:12 +0300
committerThierry Reding <treding@nvidia.com>2019-12-04 15:37:44 +0300
commita8817489dc3e3b1910842958a3b9d9e4832e99b0 (patch)
tree19928fea336c20f940553f868d8228a654c8d0c2 /drivers/gpu/drm/tegra/dc.c
parent82d73874d422b43359698f73c418a02322c886d5 (diff)
downloadlinux-a8817489dc3e3b1910842958a3b9d9e4832e99b0.tar.xz
drm/tegra: Silence expected errors on IOMMU attach
Subdevices may not be hooked up to an IOMMU via device tree. Detect such situations and avoid confusing users by not emitting an error message. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dc.c')
-rw-r--r--drivers/gpu/drm/tegra/dc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 85d3c9ad29df..714af052fbef 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -2017,7 +2017,7 @@ static int tegra_dc_init(struct host1x_client *client)
dev_warn(dc->dev, "failed to allocate syncpoint\n");
err = host1x_client_iommu_attach(client);
- if (err < 0) {
+ if (err < 0 && err != -ENODEV) {
dev_err(client->dev, "failed to attach to domain: %d\n", err);
return err;
}