diff --git a/os/src/drivers/framebuffer/omap4/driver.h b/os/src/drivers/framebuffer/omap4/driver.h
index bd28da0126..d754a97b48 100644
--- a/os/src/drivers/framebuffer/omap4/driver.h
+++ b/os/src/drivers/framebuffer/omap4/driver.h
@@ -46,15 +46,7 @@ class Framebuffer::Driver
 			 */
 			void usleep(unsigned us)
 			{
-				/* polling */
-				if (us == 0)
-					return;
-
-				unsigned ms = us / 1000;
-				if (ms == 0)
-					ms = 1;
-
-				Timer::Connection::msleep(ms);
+				Timer::Connection::usleep(us);
 			}
 		} _delayer;