diff options
Diffstat (limited to 'include/drm/drm_panel.h')
| -rw-r--r-- | include/drm/drm_panel.h | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 121f7aabccd1..994bfcdd84c5 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -29,12 +29,15 @@ #include <linux/list.h> struct backlight_device; +struct dentry; struct device_node; struct drm_connector; struct drm_device; struct drm_panel; struct display_timing; +enum drm_panel_orientation; + /** * struct drm_panel_funcs - perform operations on a given panel * @@ -62,8 +65,8 @@ struct display_timing; * the panel. This is the job of the .unprepare() function. * * Backlight can be handled automatically if configured using - * drm_panel_of_backlight(). Then the driver does not need to implement the - * functionality to enable/disable backlight. + * drm_panel_of_backlight() or drm_panel_dp_aux_backlight(). Then the driver + * does not need to implement the functionality to enable/disable backlight. */ struct drm_panel_funcs { /** @@ -114,6 +117,15 @@ struct drm_panel_funcs { struct drm_connector *connector); /** + * @get_orientation: + * + * Return the panel orientation set by device tree or EDID. + * + * This function is optional. + */ + enum drm_panel_orientation (*get_orientation)(struct drm_panel *panel); + + /** * @get_timings: * * Copy display timings into the provided array and return @@ -123,6 +135,13 @@ struct drm_panel_funcs { */ int (*get_timings)(struct drm_panel *panel, unsigned int num_timings, struct display_timing *timings); + + /** + * @debugfs_init: + * + * Allows panels to create panels-specific debugfs files. + */ + void (*debugfs_init)(struct drm_panel *panel, struct dentry *root); }; /** @@ -142,8 +161,8 @@ struct drm_panel { * Backlight device, used to turn on backlight after the call * to enable(), and to turn off backlight before the call to * disable(). - * backlight is set by drm_panel_of_backlight() and drivers - * shall not assign it. + * backlight is set by drm_panel_of_backlight() or + * drm_panel_dp_aux_backlight() and drivers shall not assign it. */ struct backlight_device *backlight; @@ -175,12 +194,9 @@ void drm_panel_init(struct drm_panel *panel, struct device *dev, const struct drm_panel_funcs *funcs, int connector_type); -int drm_panel_add(struct drm_panel *panel); +void drm_panel_add(struct drm_panel *panel); void drm_panel_remove(struct drm_panel *panel); -int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector); -void drm_panel_detach(struct drm_panel *panel); - int drm_panel_prepare(struct drm_panel *panel); int drm_panel_unprepare(struct drm_panel *panel); @@ -191,14 +207,23 @@ int drm_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector #if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL) struct drm_panel *of_drm_find_panel(const struct device_node *np); +int of_drm_get_panel_orientation(const struct device_node *np, + enum drm_panel_orientation *orientation); #else static inline struct drm_panel *of_drm_find_panel(const struct device_node *np) { return ERR_PTR(-ENODEV); } + +static inline int of_drm_get_panel_orientation(const struct device_node *np, + enum drm_panel_orientation *orientation) +{ + return -ENODEV; +} #endif -#if IS_REACHABLE(CONFIG_BACKLIGHT_CLASS_DEVICE) +#if IS_ENABLED(CONFIG_DRM_PANEL) && (IS_BUILTIN(CONFIG_BACKLIGHT_CLASS_DEVICE) || \ + (IS_MODULE(CONFIG_DRM) && IS_MODULE(CONFIG_BACKLIGHT_CLASS_DEVICE))) int drm_panel_of_backlight(struct drm_panel *panel); #else static inline int drm_panel_of_backlight(struct drm_panel *panel) |