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| author | Thierry Reding <treding@nvidia.com> | 2019-12-03 17:19:12 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-12-04 13:37:44 +0100 |
| commit | a8817489dc3e3b1910842958a3b9d9e4832e99b0 (patch) | |
| tree | 19928fea336c20f940553f868d8228a654c8d0c2 /drivers/gpu/drm/tegra/drm.c | |
| parent | 82d73874d422b43359698f73c418a02322c886d5 (diff) | |
| download | linux-a8817489dc3e3b1910842958a3b9d9e4832e99b0.tar.bz2 | |
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/drm.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 56e5e7a5c108..7a16b51eaa2d 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -920,10 +920,8 @@ int host1x_client_iommu_attach(struct host1x_client *client) if (tegra->domain) { group = iommu_group_get(client->dev); - if (!group) { - dev_err(client->dev, "failed to get IOMMU group\n"); + if (!group) return -ENODEV; - } if (domain != tegra->domain) { err = iommu_attach_group(tegra->domain, group); |