[PATCH 2/5] dt-bindings: media: sun6i: Add vcc-csi supply property

[Jagan Teki <jagan@amarulasolutions.com>]

Most of the Allwinner A64 CSI controllers are supply with
VCC-PE pin. which need to supply for some of the boards to
trigger the power.

So, document the supply property as vcc-csi so-that the required
board can eable it via device tree.

Used vcc-csi instead of vcc-pe to have better naming convention
wrt other controller pin supplies.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 Documentation/devicetree/bindings/media/sun6i-csi.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt
index e78cf4f9bc8c..5fb6fd4e2c7d 100644
--- a/Documentation/devicetree/bindings/media/sun6i-csi.txt
+++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt
@@ -18,6 +18,9 @@ Required properties:
   - clock-names: the clock names mentioned above
   - resets: phandles to the reset line driving the CSI
 
+Optional properties:
+  - vcc-csi-supply: the VCC-CSI power supply of the CSI PE group
+
 The CSI node should contain one 'port' child node with one child 'endpoint'
 node, according to the bindings defined in
 Documentation/devicetree/bindings/media/video-interfaces.txt.
-- 
2.18.0.321.gffc6fa0e3