of/documentation: update with clock information for exynos hdmi subsystem

Adding information about clocks to the binding documentation
for exynos mixer and hdmi.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/video/exynos_mixer.txt b/Documentation/devicetree/bindings/video/exynos_mixer.txt
index 3334b0a8e343..7bfde9c9d658 100644
--- a/Documentation/devicetree/bindings/video/exynos_mixer.txt
+++ b/Documentation/devicetree/bindings/video/exynos_mixer.txt
@@ -10,6 +10,10 @@ Required properties:
 - reg: physical base address of the mixer and length of memory mapped
         region.
 - interrupts: interrupt number to the cpu.
+- clocks: list of clock IDs from SoC clock driver.
+        a) mixer: Gate of Mixer IP bus clock.
+        b) sclk_hdmi: HDMI Special clock, one of the two possible inputs of
+               mixer mux.
 
 Example: