OMAP: DSS2: move set/get_mirror()

Move set/get_mirror() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 5f78d3851d9..4d644497431 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -797,16 +797,20 @@ static int taal_mirror(struct omap_dss_device *dssdev, bool enable)
 
         dev_dbg(&dssdev->dev, "mirror %d\n", enable);
 
+        dsi_bus_lock();
         if (td->enabled) {
                 r = taal_set_addr_mode(td->rotate, enable);
-
                 if (r)
-                        return r;
+                        goto err;
         }
 
         td->mirror = enable;
 
+        dsi_bus_unlock();
         return 0;
+err:
+        dsi_bus_unlock();
+        return r;
 }
 
 static bool taal_get_mirror(struct omap_dss_device *dssdev)