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It's not uncommon for the panel drivers to use devres functions for most of the resources. Provide corresponding replacement for drm_panel_add(). Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_panel.c | 23 +++++++++++++++++++++++ include/drm/drm_panel.h | 1 + 2 files changed, 24 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index d1e6598ea3bc..a6029b699b73 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -101,6 +101,29 @@ void drm_panel_remove(struct drm_panel *panel) } EXPORT_SYMBOL(drm_panel_remove); =20 +static void drm_panel_add_release(void *data) +{ + drm_panel_remove(data); +} + +/** + * devm_drm_panel_add - add a panel to the global registry using devres + * @panel: panel to add + * + * Add a panel to the global registry so that it can be looked + * up by display drivers. The panel to be added must have been + * allocated by devm_drm_panel_alloc(). Unlike drm_panel_add() with this + * function there is no need to call drm_panel_remove(), it will be called + * automatically. + */ +int devm_drm_panel_add(struct device *dev, struct drm_panel *panel) +{ + drm_panel_add(panel); + + return devm_add_action_or_reset(dev, drm_panel_add_release, panel); +} +EXPORT_SYMBOL(devm_drm_panel_add); + /** * drm_panel_prepare - power on a panel * @panel: DRM panel diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 2407bfa60236..1fb9148dd095 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -329,6 +329,7 @@ void drm_panel_put(struct drm_panel *panel); =20 void drm_panel_add(struct drm_panel *panel); void drm_panel_remove(struct drm_panel *panel); +int devm_drm_panel_add(struct device *dev, struct drm_panel *panel); =20 void drm_panel_prepare(struct drm_panel *panel); void drm_panel_unprepare(struct drm_panel *panel); --=20 2.47.3