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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2018-03-05 14:28:06 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2018-09-03 16:13:27 +0300 |
| commit | bea131966ffab271e8c3b33e37244ad340fb7876 (patch) | |
| tree | 5b4168f7e24c3803847ae662b62a32afd2e62c7c | |
| parent | f7e376aece4636afb0c4da5ce54d5e805ce47a76 (diff) | |
| download | linux-bea131966ffab271e8c3b33e37244ad340fb7876.tar.bz2 | |
drm/omap: dss: Add function to retrieve display for an output
Add a new omapdss_display_get() function to retrieve the omap_dss_device
for a given DSS output. This will be used when reversing the direction
of the DSS pipeline handling logic.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/display.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/omapdss.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c index 53cb46f6503d..34b2a4ef63a4 100644 --- a/drivers/gpu/drm/omapdrm/dss/display.c +++ b/drivers/gpu/drm/omapdrm/dss/display.c @@ -49,3 +49,12 @@ void omapdss_display_init(struct omap_dss_device *dssdev) "display%u", id); } EXPORT_SYMBOL_GPL(omapdss_display_init); + +struct omap_dss_device *omapdss_display_get(struct omap_dss_device *output) +{ + while (output->next) + output = output->next; + + return omapdss_device_get(output); +} +EXPORT_SYMBOL_GPL(omapdss_display_get); diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index 5cbbfb16369b..1621d1eaed42 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -496,6 +496,7 @@ static inline bool omapdss_is_initialized(void) #define for_each_dss_display(d) \ while ((d = omapdss_device_get_next(d, OMAP_DSS_DEVICE_TYPE_DISPLAY)) != NULL) void omapdss_display_init(struct omap_dss_device *dssdev); +struct omap_dss_device *omapdss_display_get(struct omap_dss_device *output); void omapdss_device_register(struct omap_dss_device *dssdev); void omapdss_device_unregister(struct omap_dss_device *dssdev); |