Merge "drm/panel: Add a panel notifier list into drm_panel" (25e5eaf1) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/gpu/drm/drm_panel.c

+22 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,7 @@ static LIST_HEAD(panel_list);
		void drm_panel_init(struct drm_panel *panel)
		{
		INIT_LIST_HEAD(&panel->list);
		BLOCKING_INIT_NOTIFIER_HEAD(&panel->nh);
		}
		EXPORT_SYMBOL(drm_panel_init);

		@@ -169,6 +170,27 @@ struct drm_panel of_drm_find_panel(const struct device_node np)
		EXPORT_SYMBOL(of_drm_find_panel);
		#endif

		int drm_panel_notifier_register(struct drm_panel *panel,
		struct notifier_block *nb)
		{
		return blocking_notifier_chain_register(&panel->nh, nb);
		}
		EXPORT_SYMBOL(drm_panel_notifier_register);

		int drm_panel_notifier_unregister(struct drm_panel *panel,
		struct notifier_block *nb)
		{
		return blocking_notifier_chain_unregister(&panel->nh, nb);
		}
		EXPORT_SYMBOL(drm_panel_notifier_unregister);

		int drm_panel_notifier_call_chain(struct drm_panel *panel,
		unsigned long val, void *v)
		{
		return blocking_notifier_call_chain(&panel->nh, val, v);
		}
		EXPORT_SYMBOL(drm_panel_notifier_call_chain);

		MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
		MODULE_DESCRIPTION("DRM panel infrastructure");
		MODULE_LICENSE("GPL and additional rights");

+7 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@ struct drm_encoder;
		struct drm_property;
		struct drm_property_blob;
		struct drm_printer;
		struct drm_panel;
		struct edid;

		enum drm_connector_force {
		@@ -1121,6 +1122,12 @@ struct drm_connector {
		* &drm_mode_config.connector_free_work.
		*/
		struct llist_node free_node;
		/**
		* @panel:
		*
		* Can find the panel which connected to drm_connector.
		*/
		struct drm_panel *panel;
		};

		#define obj_to_connector(x) container_of(x, struct drm_connector, base)

+26 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,23 @@

		#include <linux/errno.h>
		#include <linux/list.h>
		#include <linux/notifier.h>

		/* A hardware display blank change occurred */
		#define DRM_PANEL_EVENT_BLANK 0x01
		/* A hardware display blank early change occurred */
		#define DRM_PANEL_EARLY_EVENT_BLANK 0x02

		enum {
		/* panel: power on */
		DRM_PANEL_BLANK_UNBLANK,
		/* panel: power off */
		DRM_PANEL_BLANK_POWERDOWN,
		};

		struct drm_panel_notifier {
		void *data;
		};

		struct device_node;
		struct drm_connector;
		@@ -84,6 +101,7 @@ struct drm_panel_funcs {
		* @dev: parent device of the panel
		* @funcs: operations that can be performed on the panel
		* @list: panel entry in registry
		* @nh: panel notifier list head
		*/
		struct drm_panel {
		struct drm_device *drm;
		@@ -93,6 +111,7 @@ struct drm_panel {
		const struct drm_panel_funcs *funcs;

		struct list_head list;
		struct blocking_notifier_head nh;
		};

		/**
		@@ -194,6 +213,13 @@ void drm_panel_remove(struct drm_panel *panel);
		int drm_panel_attach(struct drm_panel panel, struct drm_connector connector);
		int drm_panel_detach(struct drm_panel *panel);

		int drm_panel_notifier_register(struct drm_panel *panel,
		struct notifier_block *nb);
		int drm_panel_notifier_unregister(struct drm_panel *panel,
		struct notifier_block *nb);
		int drm_panel_notifier_call_chain(struct drm_panel *panel,
		unsigned long val, void *v);

		#if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL)
		struct drm_panel of_drm_find_panel(const struct device_node np);
		#else