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drm: Introduce drm_connector_{get,put}()

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For consistency with other reference counting APIs in the kernel, add
drm_connector_get() and drm_connector_put() functions to reference count
connectors.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

The existing semantic patch for mode object reference count conversion
is extended for these new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-4-thierry.reding@gmail.com
This commit is contained in:
Thierry Reding
2017-02-28 15:46:39 +01:00
parent 020a218f95
commit ad09360750
9 changed files with 66 additions and 31 deletions
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6
drivers/gpu/drm/drm_crtc_helper.c
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@@ -465,7 +465,7 @@ drm_crtc_helper_disable(struct drm_crtc *crtc)
connector->dpms = DRM_MODE_DPMS_OFF;
/* we keep a reference while the encoder is bound */
drm_connector_unreference(connector);
drm_connector_put(connector);
}
drm_connector_list_iter_put(&conn_iter);
}
@@ -623,7 +623,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
for (ro = 0; ro < set->num_connectors; ro++) {
if (set->connectors[ro]->encoder)
continue;
drm_connector_reference(set->connectors[ro]);
drm_connector_get(set->connectors[ro]);
}
/* a) traverse passed in connector list and get encoders for them */
@@ -772,7 +772,7 @@ fail:
for (ro = 0; ro < set->num_connectors; ro++) {
if (set->connectors[ro]->encoder)
continue;
drm_connector_unreference(set->connectors[ro]);
drm_connector_put(set->connectors[ro]);
}
/* Try to restore the config */