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Commit f7e376ae authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Tomi Valkeinen
Browse files

drm/omap: dss: Add for_each_dss_output() macro 



Similarly to for_each_dss_display(), the for_each_dss_output() macro
iterates over all the DSS connected outputs.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 27d62452

drivers/gpu/drm/omapdrm/dss/base.c

+13 −6
Original line number Diff line number Diff line
@@ -126,12 +126,13 @@ struct omap_dss_device *omapdss_find_device_by_port(struct device_node *src, 
}



/*

 * Search for the next device starting at @from. If display_only is true, skip

 * non-display devices. Release the reference to the @from device, and acquire

 * a reference to the returned device if found.

 * Search for the next device starting at @from. The type argument specfies

 * which device types to consider when searching. Searching for multiple types

 * is supported by and'ing their type flags. Release the reference to the @from

 * device, and acquire a reference to the returned device if found.

 */

struct omap_dss_device *omapdss_device_get_next(struct omap_dss_device *from,

						bool display_only)

						enum omap_dss_device_type type)

{

	struct omap_dss_device *dssdev;

	struct list_head *list;
@@ -159,8 +160,14 @@ struct omap_dss_device *omapdss_device_get_next(struct omap_dss_device *from, 
			goto done;

		}



		/* Filter out non-display entries if display_only is set. */

		if (!display_only || dssdev->driver)

		/*

		 * Accept display entities if the display type is requested,

		 * and output entities if the output type is requested.

		 */

		if ((type & OMAP_DSS_DEVICE_TYPE_DISPLAY) && dssdev->driver)

			goto done;

		if ((type & OMAP_DSS_DEVICE_TYPE_OUTPUT) && dssdev->id &&

		    dssdev->next)

			goto done;

	}

drivers/gpu/drm/omapdrm/dss/omapdss.h

+10 −3
Original line number Diff line number Diff line
@@ -385,6 +385,11 @@ struct omap_dss_device_ops { 
	};

};



enum omap_dss_device_type {

	OMAP_DSS_DEVICE_TYPE_OUTPUT = (1 << 0),

	OMAP_DSS_DEVICE_TYPE_DISPLAY = (1 << 1),

};



struct omap_dss_device {

	struct kobject kobj;

	struct device *dev;
@@ -488,9 +493,9 @@ static inline bool omapdss_is_initialized(void) 
	return !!omapdss_get_dss();

}



void omapdss_display_init(struct omap_dss_device *dssdev);

#define for_each_dss_display(d) \

	while ((d = omapdss_device_get_next(d, true)) != NULL)

	while ((d = omapdss_device_get_next(d, OMAP_DSS_DEVICE_TYPE_DISPLAY)) != NULL)

void omapdss_display_init(struct omap_dss_device *dssdev);



void omapdss_device_register(struct omap_dss_device *dssdev);

void omapdss_device_unregister(struct omap_dss_device *dssdev);
@@ -499,7 +504,7 @@ void omapdss_device_put(struct omap_dss_device *dssdev); 
struct omap_dss_device *omapdss_find_device_by_port(struct device_node *src,

						    unsigned int port);

struct omap_dss_device *omapdss_device_get_next(struct omap_dss_device *from,

						bool display_only);

						enum omap_dss_device_type type);

int omapdss_device_connect(struct dss_device *dss,

			   struct omap_dss_device *src,

			   struct omap_dss_device *dst);
@@ -511,6 +516,8 @@ int omap_dss_get_num_overlay_managers(void); 


int omap_dss_get_num_overlays(void);



#define for_each_dss_output(d) \

	while ((d = omapdss_device_get_next(d, OMAP_DSS_DEVICE_TYPE_OUTPUT)) != NULL)

int omapdss_output_set_device(struct omap_dss_device *out,

		struct omap_dss_device *dssdev);

int omapdss_output_unset_device(struct omap_dss_device *out);