The #sound-dai-cells DT property is required to describe link between
the HDMI IP block and the SoC's audio subsystem.

Signed-off-by: Sylwester Nawrocki <s.nawro...@samsung.com>
---
 Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt 
b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
index 8715ff06c457..6b2a526ec586 100644
--- a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
@@ -50,6 +50,9 @@ Required properties for Exynos 5433:
 - clock-names: aliases for above clock specfiers.
 - samsung,sysreg: handle to syscon used to control the system registers.
 
+Optional properties for Exynos 4210, 4212, 5420 and 5433:
+ - #sound-dai-cells: should be 0.
+
 Example:
 
        hdmi {
-- 
2.14.2

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