dm: Add a dsi host uclass

Display Serial Interface (DSI) host can usefully be modelled
as their own uclass.
DSI defines a serial bus and a communication protocol
between the host and the device (panel, bridge).

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 7df9b0b..07aaca9 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -11,6 +11,7 @@
 obj-$(CONFIG_CONSOLE_TRUETYPE) += console_truetype.o fonts/
 obj-$(CONFIG_DISPLAY) += display-uclass.o
 obj-$(CONFIG_DM_VIDEO) += backlight-uclass.o
+obj-$(CONFIG_VIDEO_MIPI_DSI) += dsi-host-uclass.o
 obj-$(CONFIG_DM_VIDEO) += panel-uclass.o simple_panel.o
 obj-$(CONFIG_DM_VIDEO) += video-uclass.o vidconsole-uclass.o
 obj-$(CONFIG_DM_VIDEO) += video_bmp.o
@@ -58,6 +59,7 @@
 obj-$(CONFIG_VIDEO_MX3) += mx3fb.o videomodes.o
 obj-$(CONFIG_VIDEO_MXS) += mxsfb.o videomodes.o
 obj-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o
+obj-$(CONFIG_VIDEO_DSI_HOST_SANDBOX) += sandbox_dsi_host.o
 obj-$(CONFIG_VIDEO_SANDBOX_SDL) += sandbox_sdl.o
 obj-$(CONFIG_VIDEO_SIMPLE) += simplefb.o
 obj-$(CONFIG_VIDEO_TEGRA20) += tegra.o