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Subject[PATCH 24/27] dt-bindings: display: sun4i-drm: document H6 TCON TOP
Date
From: Icenowy Zheng <icenowy@aosc.io>

Allwinner H6 SoC has a cut down version of TCON TOP.

Add binding documentation for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
[expanded description]
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
.../bindings/display/sunxi/sun4i-drm.txt | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index 278410e43940..a14eb9313e70 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -221,24 +221,26 @@ It allows display pipeline to be configured in very different ways:
\ [3] TCON-TV1 [1] - TVE1/RGB

Note that both TCON TOP references same physical unit. Both mixers can be
-connected to any TCON.
+connected to any TCON. Not all TCON TOP variants support all features.

Required properties:
- compatible: value must be one of:
* allwinner,sun8i-r40-tcon-top
+ * allwinner,sun50i-h6-tcon-top
- reg: base address and size of the memory-mapped region.
- clocks: phandle to the clocks feeding the TCON TOP
* bus: TCON TOP interface clock
* tcon-tv0: TCON TV0 clock
- * tve0: TVE0 clock
- * tcon-tv1: TCON TV1 clock
- * tve1: TVE0 clock
- * dsi: MIPI DSI clock
+ * tve0: TVE0 clock (R40 only)
+ * tcon-tv1: TCON TV1 clock (R40 only)
+ * tve1: TVE0 clock (R40 only)
+ * dsi: MIPI DSI clock (R40 only)
- clock-names: clock name mentioned above
- resets: phandle to the reset line driving the TCON TOP
- #clock-cells : must contain 1
- clock-output-names: Names of clocks created for TCON TV0 channel clock,
- TCON TV1 channel clock and DSI channel clock, in that order.
+ TCON TV1 channel clock (R40 only) and DSI channel clock (R40 only), in
+ that order.

- ports: A ports node with endpoint definitions as defined in
Documentation/devicetree/bindings/media/video-interfaces.txt. 6 ports should
--
2.18.0
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