OMAP: DSS2: OMAPFB: implement OMAPFB_GET_DISPLAY_INFO
Previously the only place to get the size of the display was from the
DSS's sysfs interface, making, for example, configuring overlays and doing
updates on manual displays more difficult.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 4c4bafd..33fc145 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -483,6 +483,7 @@
struct omapfb_memory_read memory_read;
struct omapfb_vram_info vram_info;
struct omapfb_tearsync_info tearsync_info;
+ struct omapfb_display_info display_info;
} p;
int r = 0;
@@ -741,6 +742,29 @@
break;
}
+ case OMAPFB_GET_DISPLAY_INFO: {
+ u16 xres, yres;
+
+ DBG("ioctl GET_DISPLAY_INFO\n");
+
+ if (display == NULL) {
+ r = -ENODEV;
+ break;
+ }
+
+ display->get_resolution(display, &xres, &yres);
+
+ p.display_info.xres = xres;
+ p.display_info.yres = yres;
+ p.display_info.width = 0;
+ p.display_info.height = 0;
+
+ if (copy_to_user((void __user *)arg, &p.display_info,
+ sizeof(p.display_info)))
+ r = -EFAULT;
+ break;
+ }
+
default:
dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
r = -EINVAL;