38  * struct drm_panel_funcs - perform operations on a given panel
39  * @disable: disable panel (turn off back light, etc.)
40  * @unprepare: turn off panel
41  * @prepare: turn on panel and perform set up
42  * @enable: enable panel (turn on back light, etc.)
43  * @get_modes: add modes to the connector that the panel is attached to and
49  * starts to transmit video data. Panel drivers can use this to turn the panel
62  * necessary to turn off the panel to avoid visual glitches. This is done in
65  * is visible on the panel. It is then safe for the display controller to
69  * the panel. This is the job of the .unprepare() function.
72 	int (*disable)(struct drm_panel *panel);
73 	int (*unprepare)(struct drm_panel *panel);
74 	int (*prepare)(struct drm_panel *panel);
75 	int (*enable)(struct drm_panel *panel);
76 	int (*get_modes)(struct drm_panel *panel);
77 	int (*get_timings)(struct drm_panel *panel, unsigned int num_timings,
82  * struct drm_panel - DRM panel object
83  * @drm: DRM device owning the panel
84  * @connector: DRM connector that the panel is attached to
85  * @dev: parent device of the panel
86  * @funcs: operations that can be performed on the panel
87  * @list: panel entry in registry
100  * drm_disable_unprepare - power off a panel
101  * @panel: DRM panel
103  * Calling this function will completely power off a panel (assert the panel's
105  * is usually no longer possible to communicate with the panel until another
110 static inline int drm_panel_unprepare(struct drm_panel *panel)  in drm_panel_unprepare()  argument
112 	if (panel && panel->funcs && panel->funcs->unprepare)  in drm_panel_unprepare()
113 		return panel->funcs->unprepare(panel);  in drm_panel_unprepare()
115 	return panel ? -ENOSYS : -EINVAL;  in drm_panel_unprepare()
119  * drm_panel_disable - disable a panel
120  * @panel: DRM panel
122  * This will typically turn off the panel's backlight or disable the display
128 static inline int drm_panel_disable(struct drm_panel *panel)  in drm_panel_disable()  argument
130 	if (panel && panel->funcs && panel->funcs->disable)  in drm_panel_disable()
131 		return panel->funcs->disable(panel);  in drm_panel_disable()
133 	return panel ? -ENOSYS : -EINVAL;  in drm_panel_disable()
137  * drm_panel_prepare - power on a panel
138  * @panel: DRM panel
141  * the panel. After this has completed it is possible to communicate with any
146 static inline int drm_panel_prepare(struct drm_panel *panel)  in drm_panel_prepare()  argument
148 	if (panel && panel->funcs && panel->funcs->prepare)  in drm_panel_prepare()
149 		return panel->funcs->prepare(panel);  in drm_panel_prepare()
151 	return panel ? -ENOSYS : -EINVAL;  in drm_panel_prepare()
155  * drm_panel_enable - enable a panel
156  * @panel: DRM panel
158  * Calling this function will cause the panel display drivers to be turned on
164 static inline int drm_panel_enable(struct drm_panel *panel)  in drm_panel_enable()  argument
166 	if (panel && panel->funcs && panel->funcs->enable)  in drm_panel_enable()
167 		return panel->funcs->enable(panel);  in drm_panel_enable()
169 	return panel ? -ENOSYS : -EINVAL;  in drm_panel_enable()
173  * drm_panel_get_modes - probe the available display modes of a panel
174  * @panel: DRM panel
176  * The modes probed from the panel are automatically added to the connector
177  * that the panel is attached to.
179  * Return: The number of modes available from the panel on success or a
182 static inline int drm_panel_get_modes(struct drm_panel *panel)  in drm_panel_get_modes()  argument
184 	if (panel && panel->funcs && panel->funcs->get_modes)  in drm_panel_get_modes()
185 		return panel->funcs->get_modes(panel);  in drm_panel_get_modes()
187 	return panel ? -ENOSYS : -EINVAL;  in drm_panel_get_modes()
190 void drm_panel_init(struct drm_panel *panel);
192 int drm_panel_add(struct drm_panel *panel);
193 void drm_panel_remove(struct drm_panel *panel);
195 int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector);
196 int drm_panel_detach(struct drm_panel *panel);