linux-kernel - [PATCH v2 1/2] dt-bindings/display/bridge: sii902x: add optional power supplies

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Date:   Wed, 25 Apr 2018 09:53:13 +0200
From:   Philippe Cornu <philippe.cornu@...com>
To:     Archit Taneja <architt@...eaurora.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Yannick Fertre <yannick.fertre@...com>,
        Philippe Cornu <philippe.cornu@...com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Alexandre Torgue <alexandre.torgue@...com>
Subject: [PATCH v2 1/2] dt-bindings/display/bridge: sii902x: add optional power supplies

Add optional power supplies using the description found in
"SiI9022A/SiI9024A HDMI Transmitter Data Sheet (August 2016)".

There is a single 1v2 supply voltage named vcc12 from which cvcc12
(digital core) and avcc12 (TMDS analog) are derived because according
to this data sheet:
"cvcc12 and avcc12 can be derived from the same power source"

Signed-off-by: Philippe Cornu <philippe.cornu@...com>
---
 Documentation/devicetree/bindings/display/bridge/sii902x.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/sii902x.txt b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
index 56a3e68ccb80..9fb41fc9af51 100644
--- a/Documentation/devicetree/bindings/display/bridge/sii902x.txt
+++ b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
@@ -8,6 +8,8 @@ Optional properties:
 	- interrupts-extended or interrupt-parent + interrupts: describe
 	  the interrupt line used to inform the host about hotplug events.
 	- reset-gpios: OF device-tree gpio specification for RST_N pin.
+	- iovcc-supply: I/O supply voltage (1.8V or 3.3V, host-dependent).
+	- vcc12-supply: TMDS analog & digital core supply voltage (1.2V).
 
 Optional subnodes:
 	- video input: this subnode can contain a video input port node
-- 
2.15.1