OMAPDSS: add helpers to get mgr or output from display
Add two helper functions that can be used to find either the DSS output
or the overlay manager that is connected to the given display.
This hides how the output and the manager are actually connected, making
it easier to change the connections in the future.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index 826586f..b3577cb 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -247,6 +247,9 @@
struct drm_encoder *encoder = priv->encoders[i];
struct omap_dss_device *dssdev =
omap_encoder_get_dssdev(encoder);
+ struct omap_dss_output *output;
+
+ output = omapdss_find_output_from_display(dssdev);
/* figure out which crtc's we can connect the encoder to: */
encoder->possible_crtcs = 0;
@@ -259,7 +262,7 @@
supported_outputs =
dss_feat_get_supported_outputs(crtc_channel);
- if (supported_outputs & dssdev->output->id)
+ if (supported_outputs & output->id)
encoder->possible_crtcs |= (1 << id);
}
}