OMAPDSS: add output->dispc_channel

The DISPC channel used for each output is currently passed in panel
platform data from the board files.

To simplify this, and to make the panel drivers less dependent on OMAP,
this patch changes omapdss to resolve the channel independently. The
channel is resolved based on the OMAP version and, in case of DSI, the
DSI module id. This resolved channel is stored into a new field in
output, dispc_channel.

The few places where dssdev->channel was used are changed to use
output->recommended_channel. After this patch, dssdev->channel is
obsolete.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index fa800b7ef832..41fb434093e9 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -546,6 +546,9 @@ struct omap_dss_output {
         /* display type supported by the output */
         enum omap_display_type type;
 
+        /* DISPC channel for this output */
+        enum omap_channel dispc_channel;
+
         /* output instance */
         enum omap_dss_output_id id;
 
@@ -563,6 +566,7 @@ struct omap_dss_device {
 
         enum omap_display_type type;
 
+        /* obsolete, to be removed */
         enum omap_channel channel;
 
         union {