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-rw-r--r--dts/Bindings/display/sunxi/sun4i-drm.txt64
1 files changed, 62 insertions, 2 deletions
diff --git a/dts/Bindings/display/sunxi/sun4i-drm.txt b/dts/Bindings/display/sunxi/sun4i-drm.txt
index 3346c1e..f8773ec 100644
--- a/dts/Bindings/display/sunxi/sun4i-drm.txt
+++ b/dts/Bindings/display/sunxi/sun4i-drm.txt
@@ -103,6 +103,7 @@ Required properties:
- compatible: value must be one of:
* allwinner,sun8i-a83t-hdmi-phy
* allwinner,sun8i-h3-hdmi-phy
+ * allwinner,sun50i-a64-hdmi-phy
- reg: base address and size of memory-mapped region
- clocks: phandles to the clocks feeding the HDMI PHY
* bus: the HDMI PHY interface clock
@@ -111,8 +112,9 @@ Required properties:
- resets: phandle to the reset controller driving the PHY
- reset-names: must be "phy"
-H3 HDMI PHY requires additional clock:
+H3 and A64 HDMI PHY require additional clocks:
- pll-0: parent of phy clock
+ - pll-1: second possible phy clock parent (A64 only)
TV Encoder
----------
@@ -145,6 +147,7 @@ Required properties:
* allwinner,sun8i-a33-tcon
* allwinner,sun8i-a83t-tcon-lcd
* allwinner,sun8i-a83t-tcon-tv
+ * allwinner,sun8i-r40-tcon-tv
* allwinner,sun8i-v3s-tcon
* allwinner,sun9i-a80-tcon-lcd
* allwinner,sun9i-a80-tcon-tv
@@ -179,7 +182,7 @@ For TCONs with channel 0, there is one more clock required:
For TCONs with channel 1, there is one more clock required:
- 'tcon-ch1': The clock driving the TCON channel 1
-When TCON support LVDS (all TCONs except TV TCON on A83T and those found
+When TCON support LVDS (all TCONs except TV TCONs on A83T, R40 and those found
in A13, H3, H5 and V3s SoCs), you need one more reset line:
- 'lvds': The reset line driving the LVDS logic
@@ -187,6 +190,62 @@ And on the A23, A31, A31s and A33, you need one more clock line:
- 'lvds-alt': An alternative clock source, separate from the TCON channel 0
clock, that can be used to drive the LVDS clock
+TCON TOP
+--------
+
+TCON TOPs main purpose is to configure whole display pipeline. It determines
+relationships between mixers and TCONs, selects source TCON for HDMI, muxes
+LCD and TV encoder GPIO output, selects TV encoder clock source and contains
+additional TV TCON and DSI gates.
+
+It allows display pipeline to be configured in very different ways:
+
+ / LCD0/LVDS0
+ / [0] TCON-LCD0
+ | \ MIPI DSI
+ mixer0 |
+ \ / [1] TCON-LCD1 - LCD1/LVDS1
+ TCON-TOP
+ / \ [2] TCON-TV0 [0] - TVE0/RGB
+ mixer1 | \
+ | TCON-TOP - HDMI
+ | /
+ \ [3] TCON-TV1 [1] - TVE1/RGB
+
+Note that both TCON TOP references same physical unit. Both mixers can be
+connected to any TCON.
+
+Required properties:
+ - compatible: value must be one of:
+ * allwinner,sun8i-r40-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
+ - 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.
+
+- ports: A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. 6 ports should
+ be defined:
+ * port 0 is input for mixer0 mux
+ * port 1 is output for mixer0 mux
+ * port 2 is input for mixer1 mux
+ * port 3 is output for mixer1 mux
+ * port 4 is input for HDMI mux
+ * port 5 is output for HDMI mux
+ All output endpoints for mixer muxes and input endpoints for HDMI mux should
+ have reg property with the id of the target TCON, as shown in above graph
+ (0-3 for mixer muxes and 0-1 for HDMI mux). All ports should have only one
+ endpoint connected to remote endpoint.
+
DRC
---
@@ -341,6 +400,7 @@ Required properties:
* allwinner,sun8i-a33-display-engine
* allwinner,sun8i-a83t-display-engine
* allwinner,sun8i-h3-display-engine
+ * allwinner,sun8i-r40-display-engine
* allwinner,sun8i-v3s-display-engine
* allwinner,sun9i-a80-display-engine