dt-bindings: add compatible strings for big/little rockchip vops

This patch documents the compatible strings for the big and little vop
in rockchip's drm driver.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
[seanpaul removed superfluous description per tfiga's review]
Signed-off-by: Sean Paul <seanpaul@chromium.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
index 196121f9aad4..9eb3f0a2a078 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
@@ -8,6 +8,8 @@ Required properties:
 - compatible: value should be one of the following
                 "rockchip,rk3036-vop";
                 "rockchip,rk3288-vop";
+                "rockchip,rk3399-vop-big";
+                "rockchip,rk3399-vop-lit";
 
 - interrupts: should contain a list of all VOP IP block interrupts in the
                  order: VSYNC, LCD_SYSTEM. The interrupt specifier