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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: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
hifive-unleashed-5.1
Laurent Pinchart 2018-03-04 22:28:25 +02:00 committed by Tomi Valkeinen
parent 27d624527d
commit f7e376aece
2 changed files with 23 additions and 9 deletions
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19
drivers/gpu/drm/omapdrm/dss/base.c
View File

@ -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;
}

13
drivers/gpu/drm/omapdrm/dss/omapdss.h
View File

@ -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);