Documentation: dt-bindings: rockchip: introduce dclk_source

Change-Id: Iee4d40ede334f418fd4edb51319b5e03f25467c0
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
index af440f2f7fd944c6193759e538204971b9b08e76..df0847e9a756bfa57ecb5a1f2c97c141fd80a2aa 100644 (file)
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
@@ -32,6 +32,7 @@ Required properties:
                aclk_vop: for ddr buffer transfer.
                hclk_vop: for ahb bus to R/W the phy regs.
                dclk_vop: pixel clock.
+               dclk_source: optinal, dclk sources from display plls.
 
 - resets: Must contain an entry for each entry in reset-names.
   See ../reset/reset.txt for details.