From: Thierry Reding <treding@xxxxxxxxxx>
The Tegra DRM never actually took that lock, so the driver was broken
until generic locking was added in commit:
commit b962a12050a387e4bbf3a48745afe1d29d396b0d
Author: Rob Clark <robdclark@xxxxxxxxx>
Date: Mon Oct 22 14:31:22 2018 +0200
drm/atomic: integrate modeset lock with private objects
It's now no longer necessary to take that lock, so drop the check.
v2: add rationale for why it is now safe to drop the check (Daniel)
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/gpu/drm/tegra/hub.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c
index 6aca0fd5a8e5..e56c0f7d3a13 100644
--- a/drivers/gpu/drm/tegra/hub.c
+++ b/drivers/gpu/drm/tegra/hub.c
@@ -615,11 +615,8 @@ static struct tegra_display_hub_state *
tegra_display_hub_get_state(struct tegra_display_hub *hub,
struct drm_atomic_state *state)
{
- struct drm_device *drm = dev_get_drvdata(hub->client.parent);
struct drm_private_state *priv;
- WARN_ON(!drm_modeset_is_locked(&drm->mode_config.connection_mutex));
-
priv = drm_atomic_get_private_obj_state(state, &hub->base);
if (IS_ERR(priv))
return ERR_CAST(priv);
--
2.23.0
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