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| author | Maxime Ripard <maxime@cerno.tech> | 2022-07-11 19:38:40 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-07-13 10:46:06 +0200 |
| commit | abea75e9207e7744f524a5373e9c149226e17a5d (patch) | |
| tree | d2a1bd16b0f02313f7e1cc6f13aeadd14af21d55 | |
| parent | 35a3b82f1bdd60e454de34f984a3f09b38f64b61 (diff) | |
| download | linux-rpi-abea75e9207e7744f524a5373e9c149226e17a5d.tar.gz linux-rpi-abea75e9207e7744f524a5373e9c149226e17a5d.tar.bz2 linux-rpi-abea75e9207e7744f524a5373e9c149226e17a5d.zip | |
drm/bridge: panel: Introduce drmm_panel_bridge_add
Unlike what can be found for other entities, there's no DRM-managed
function to create a panel_bridge instance from a panel.
Let's introduce one.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220711173939.1132294-11-maxime@cerno.tech
| -rw-r--r-- | drivers/gpu/drm/bridge/panel.c | 39 | ||||
| -rw-r--r-- | include/drm/drm_bridge.h | 2 |
2 files changed, 41 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 4277bf4f032b..7d34ebfe611d 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -8,6 +8,7 @@ #include <drm/drm_bridge.h> #include <drm/drm_connector.h> #include <drm/drm_encoder.h> +#include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> @@ -367,6 +368,44 @@ struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev, } EXPORT_SYMBOL(devm_drm_panel_bridge_add_typed); +static void drmm_drm_panel_bridge_release(struct drm_device *drm, void *ptr) +{ + struct drm_bridge *bridge = ptr; + + drm_panel_bridge_remove(bridge); +} + +/** + * drmm_panel_bridge_add - Creates a DRM-managed &drm_bridge and + * &drm_connector that just calls the + * appropriate functions from &drm_panel. + * + * @drm: DRM device to tie the bridge lifetime to + * @panel: The drm_panel being wrapped. Must be non-NULL. + * + * This is the DRM-managed version of drm_panel_bridge_add() which + * automatically calls drm_panel_bridge_remove() when @dev is cleaned + * up. + */ +struct drm_bridge *drmm_panel_bridge_add(struct drm_device *drm, + struct drm_panel *panel) +{ + struct drm_bridge *bridge; + int ret; + + bridge = drm_panel_bridge_add_typed(panel, panel->connector_type); + if (IS_ERR(bridge)) + return bridge; + + ret = drmm_add_action_or_reset(drm, drmm_drm_panel_bridge_release, + bridge); + if (ret) + return ERR_PTR(ret); + + return bridge; +} +EXPORT_SYMBOL(drmm_panel_bridge_add); + /** * drm_panel_bridge_connector - return the connector for the panel bridge * @bridge: The drm_bridge. diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index d434ab416ad4..e37a419ac2b4 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -930,6 +930,8 @@ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev, struct drm_panel *panel, u32 connector_type); +struct drm_bridge *drmm_panel_bridge_add(struct drm_device *drm, + struct drm_panel *panel); struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge); #else static inline bool drm_bridge_is_panel(const struct drm_bridge *bridge) |