linux-kernel - [PATCH 3/4] Documentation: bindings: add phy

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Date:   Fri,  4 May 2018 16:08:57 +0800
From:   Lin Huang <hl@...k-chips.com>
To:     seanpaul@...omium.org, airlied@...ux.ie, zyw@...k-chips.com
Cc:     dianders@...omium.org, briannorris@...omium.org,
        linux-rockchip@...ts.infradead.org, heiko@...ech.de,
        daniel.vetter@...el.com, jani.nikula@...ux.intel.com,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Lin Huang <hl@...k-chips.com>
Subject: [PATCH 3/4] Documentation: bindings: add phy_config for Rockchip USB Type-C PHY

If want to do training outside DP Firmware, need phy voltage swing
and pre_emphasis value.

Signed-off-by: Lin Huang <hl@...k-chips.com>
---
 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
index 960da7f..eda26dd 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
@@ -17,7 +17,9 @@ Required properties:
 
 Optional properties:
  - extcon : extcon specifier for the Power Delivery
-
+ - rockchip,phy_config : That's phy voltage swing and pre_emphasis
+			 setting, if want to do dp training outside
+			 dp firmware, need to add these value.
 Required nodes : a sub-node is required for each port the phy provides.
 		 The sub-node name is used to identify dp or usb3 port,
 		 and shall be the following entries:
-- 
2.7.4