diff --git a/drivers/staging/vc04_services/interface/vchi/TODO b/drivers/staging/vc04_services/interface/vchi/TODO
new file mode 100644
index 000000000000..03aa65183b25
--- /dev/null
+++ b/drivers/staging/vc04_services/interface/vchi/TODO
@@ -0,0 +1,50 @@
+1) Port to aarch64
+
+This driver won't be very useful unless we also have it working on
+Raspberry Pi 3.  This requires, at least:
+
+  - Figure out an alternative to the dmac_map_area() hack.
+
+  - Decide what to use instead of dsb().
+
+  - Do something about (int) cast of bulk->data in
+    vchiq_bulk_transfer().
+
+    bulk->data is a bus address going across to the firmware.  We know
+    our bus addresses are <32bit.
+
+2) Write a DT binding doc and get the corresponding DT node merged to
+   bcm2835.
+
+This will let the driver probe when enabled.
+
+3) Import drivers using VCHI.
+
+VCHI is just a tool to let drivers talk to the firmware.  Here are
+some of the ones we want:
+
+  - vc_mem (https://github.com/raspberrypi/linux/blob/rpi-4.4.y/drivers/char/broadcom/vc_mem.c)
+
+  This driver is what the vcdbg userspace program uses to set up its
+  requests to the firmware, which are transmitted across VCHIQ.  vcdbg
+  is really useful for debugging firmware interactions.
+
+  - bcm2835-camera (https://github.com/raspberrypi/linux/tree/rpi-4.4.y/drivers/media/platform/bcm2835)
+
+  This driver will let us get images from the camera using the MMAL
+  protocol over VCHI.
+
+  - VCSM (https://github.com/raspberrypi/linux/tree/rpi-4.4.y/drivers/char/broadcom/vc_sm)
+
+  This driver is used for talking about regions of VC memory across
+  firmware protocols including VCHI.  We'll want to extend this driver
+  to manage these buffers as dmabufs so that we can zero-copy import
+  camera images into vc4 for rendering/display.
+
+4) Garbage-collect unused code
+
+One of the reasons this driver wasn't upstreamed previously was that
+there's a lot code that got built that's probably unnecessary these
+days.  Once we have the set of VCHI-using drivers we want in tree, we
+should be able to do a sweep of the code to see what's left that's
+unused.