DRM subysystem and clock driver shared the same compatible mmsys.
This stopped does not work, as only the first driver for a compatible
gets probed. We change the comaptible to the new DRM identifier to fix
this.

Signed-off-by: Matthias Brugger <mbrug...@suse.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,disp.txt          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git 
a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt 
b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
index 383183a89164..6db652463e64 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
@@ -27,6 +27,7 @@ 
Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt.
 
 Required properties (all function blocks):
 - compatible: "mediatek,<chip>-disp-<function>", one of
+       "mediatek,<chip>-dispsys"    - central component for the DRM system
        "mediatek,<chip>-disp-ovl"   - overlay (4 layers, blending, csc)
        "mediatek,<chip>-disp-rdma"  - read DMA / line buffer
        "mediatek,<chip>-disp-wdma"  - write DMA
@@ -71,6 +72,11 @@ mmsys: clock-controller@14000000 {
        #clock-cells = <1>;
 };
 
+dispsys: display-system {
+       compatible = "mediatek,mt2701-dispsys";
+       mediatek,mmsys = <&mmsys>;
+}
+
 ovl0: ovl@1400c000 {
        compatible = "mediatek,mt8173-disp-ovl";
        reg = <0 0x1400c000 0 0x1000>;
-- 
2.14.2

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