OMAPDSS: add pdata->default_display_name

We can currently set the default display (i.e. the initial display) in
the omapdss platform data by using a pointer to the default
omap_dss_device. Internally omapdss uses the device's name to resolve
the default display.

As it's difficult to get the omap_dss_device pointer in the future,
after we've changed the omapdss device model, this patch adds a new way
to define the default display, by using the name of the display.

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

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index c9c2252e3719..710e9f9a4436 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -243,6 +243,8 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
         if (def_disp_name)
                 core.default_display_name = def_disp_name;
+        else if (pdata->default_display_name)
+                core.default_display_name = pdata->default_display_name;
         else if (pdata->default_device)
                 core.default_display_name = pdata->default_device->name;
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index aeb4e9a0c5d1..6462f689a16d 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -365,6 +365,7 @@ struct omap_dss_board_info {
         int num_devices;
         struct omap_dss_device **devices;
         struct omap_dss_device *default_device;
+        const char *default_display_name;
         int (*dsi_enable_pads)(int dsi_id, unsigned lane_mask);
         void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask);
         int (*set_min_bus_tput)(struct device *dev, unsigned long r);