diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/base.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/base.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/base.c b/drivers/gpu/drm/omapdrm/dss/base.c index 576fd3d13259..599ef628736b 100644 --- a/drivers/gpu/drm/omapdrm/dss/base.c +++ b/drivers/gpu/drm/omapdrm/dss/base.c @@ -105,6 +105,11 @@ struct omap_dss_device *omapdss_find_device_by_port(struct device_node *src, int omapdss_device_connect(struct omap_dss_device *src, struct omap_dss_device *dst) { + dev_dbg(src->dev, "connect\n"); + + if (omapdss_device_is_connected(src)) + return -EBUSY; + if (src->driver) return src->driver->connect(src); else @@ -115,6 +120,13 @@ EXPORT_SYMBOL_GPL(omapdss_device_connect); void omapdss_device_disconnect(struct omap_dss_device *src, struct omap_dss_device *dst) { + dev_dbg(src->dev, "disconnect\n"); + + if (!src->id && !omapdss_device_is_connected(src)) { + WARN_ON(!src->driver); + return; + } + if (src->driver) src->driver->disconnect(src); else |