OMAP: DSS2: Add method for querying display dimensions from DSS drivers

Add get_dimensions() to struct omap_dss_driver. Use the call, if supported
by the driver, in OMAPFB.

Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

2 files changed, 20 insertions, 4 deletions

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 3e4ee4dc2fb..cff450392b7 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -895,8 +895,16 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 
                 p.display_info.xres = xres;
                 p.display_info.yres = yres;
-                p.display_info.width = 0;
-                p.display_info.height = 0;
+
+                if (display->driver->get_dimensions) {
+                        u32 w, h;
+                        display->driver->get_dimensions(display, &w, &h);
+                        p.display_info.width = w;
+                        p.display_info.height = h;
+                } else {
+                        p.display_info.width = 0;
+                        p.display_info.height = 0;
+                }
 
                 if (copy_to_user((void __user *)arg, &p.display_info,
                                         sizeof(p.display_info)))
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 606f6eec4e1..c0c846c8f23 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -702,8 +702,16 @@ int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
                         var->xres, var->yres,
                         var->xres_virtual, var->yres_virtual);
 
-        var->height             = -1;
-        var->width              = -1;
+        if (display && display->driver->get_dimensions) {
+                u32 w, h;
+                display->driver->get_dimensions(display, &w, &h);
+                var->width = DIV_ROUND_CLOSEST(w, 1000);
+                var->height = DIV_ROUND_CLOSEST(h, 1000);
+        } else {
+                var->height = -1;
+                var->width = -1;
+        }
+
         var->grayscale          = 0;
 
         if (display && display->driver->get_timings) {