diff options
| author | Thierry Reding <treding@nvidia.com> | 2019-02-01 14:28:31 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-02-07 18:28:59 +0100 |
| commit | 8e5d19c625f94e91d42aaf808e1231f636cf1365 (patch) | |
| tree | ff69eb5ea30fe14173a8114789e5721609d128a2 /drivers/gpu/drm/tegra/drm.c | |
| parent | e1f338c0f8a9aacf351e42e5cfd0639fc73dc5b9 (diff) | |
drm/tegra: Store parent pointer in Tegra DRM clients
Tegra DRM clients need access to their parent, so store a pointer to it
upon registration. It's technically possible to get at this by going via
the host1x client's parent and getting the driver data, but that's quite
complicated and not very transparent. It's much more straightforward and
natural to let the children know about their parent.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 4b70ce664c41..61dcbd218ffc 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -1041,6 +1041,7 @@ int tegra_drm_register_client(struct tegra_drm *tegra, { mutex_lock(&tegra->clients_lock); list_add_tail(&client->list, &tegra->clients); + client->drm = tegra; mutex_unlock(&tegra->clients_lock); return 0; @@ -1051,6 +1052,7 @@ int tegra_drm_unregister_client(struct tegra_drm *tegra, { mutex_lock(&tegra->clients_lock); list_del_init(&client->list); + client->drm = NULL; mutex_unlock(&tegra->clients_lock); return 0; |