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[PATCH v3 03/11] dt-bindings: add bindings for DE2 on V3s SoC

From Icenowy Zheng <icenowy@aosc.io>
Newsgroups linux.kernel
Subject [PATCH v3 03/11] dt-bindings: add bindings for DE2 on V3s SoC
Date 2017-03-29 23:30 +0200
Message-ID <tqtkd-4kM-3@gated-at.bofh.it> (permalink)
References <tqrLs-34R-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Icenowy Zheng <icenowy@aosc.xyz>

Allwinner V3s SoC have a display engine which have a different pipeline
with older SoCs.

Add document for it (new compatibles and the new "mixer" part).

The paragraph of TCON is also refactored, for furtherly add TCONs in
A83T/H3/A64/H5 that have only a channel 1 (used for HDMI or TV Encoder).

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
---
Changes in v3:
- Remove the description of having a BE directly as allwinner,pipeline.

 .../bindings/display/sunxi/sun4i-drm.txt           | 37 +++++++++++++++++++---
 1 file changed, 33 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index b82c00449468..38de5e96f359 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -31,11 +31,11 @@ Required properties:
    * allwinner,sun6i-a31-tcon
    * allwinner,sun6i-a31s-tcon
    * allwinner,sun8i-a33-tcon
+   * allwinner,sun8i-v3s-tcon
  - reg: base address and size of memory-mapped region
  - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the TCON. Three are needed:
+ - clocks: phandles to the clocks feeding the TCON
    - 'ahb': the interface clocks
-   - 'tcon-ch0': The clock driving the TCON channel 0
  - resets: phandles to the reset controllers driving the encoder
    - "lcd": the reset line for the TCON channel 0
 
@@ -52,7 +52,12 @@ Required properties:
   second the block connected to the TCON channel 1 (usually the TV
   encoder)
 
-On SoCs other than the A33, there is one more clock required:
+On TCONs that have a channel 0 (currently all TCONs supported), there
+is one more clock required:
+   - 'tcon-ch0': The clock driving the TCON channel 0
+
+On TCONs that have a channel 1 (currently all TCONs except the ones in
+A33 and V3s), there is one more clock required:
    - 'tcon-ch1': The clock driving the TCON channel 1
 
 DRC
@@ -137,6 +142,26 @@ Required properties:
   Documentation/devicetree/bindings/media/video-interfaces.txt. The
   first port should be the input endpoints, the second one the outputs
 
+Display Engine 2.0 Mixer
+------------------------
+
+The DE2 mixer have many functionalities, currently only layer blending is
+supported.
+
+Required properties:
+  - compatible: value must be one of:
+    * allwinner,sun8i-v3s-de2-mixer
+  - reg: base address and size of the memory-mapped region.
+  - clocks: phandles to the clocks feeding the frontend and backend
+    * bus: the backend interface clock
+    * ram: the backend DRAM clock
+  - clock-names: the clock names mentioned above
+  - resets: phandles to the reset controllers driving the backend
+
+- ports: A ports node with endpoint definitions as defined in
+  Documentation/devicetree/bindings/media/video-interfaces.txt. The
+  first port should be the input endpoints, the second one the output
+
 
 Display Engine Pipeline
 -----------------------
@@ -151,9 +176,13 @@ Required properties:
     * allwinner,sun6i-a31-display-engine
     * allwinner,sun6i-a31s-display-engine
     * allwinner,sun8i-a33-display-engine
+    * allwinner,sun8i-v3s-display-engine
 
   - allwinner,pipelines: list of phandle to the display engine
-    frontends available.
+    pipeline entry point. For SoCs with original DE (currently
+    all SoCs supported by display engine except V3s), this
+    phandle should be a display frontend; for SoCs with DE2,
+    this phandle should be a mixer.
 
 Example:
 
-- 
2.12.0

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Thread

[PATCH v3 00/11] Initial Allwinner Display Engine 2.0 Support Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 21:50 +0200
  [PATCH v3 07/11] drm/sun4i: Add compatible string for V3s display engine Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:00 +0200
  [PATCH v3 08/11] drm/sun4i: tcon: add support for V3s TCON Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:00 +0200
  [PATCH v3 01/11] dt-bindings: add binding for the Allwinner DE2 CCU Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:00 +0200
    Re: [PATCH v3 01/11] dt-bindings: add binding for the Allwinner DE2  CCU Rob Herring <robh@kernel.org> - 2017-04-03 17:40 +0200
  [PATCH v3 09/11] ARM: dts: sun8i: add DE2 nodes for V3s SoC Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:10 +0200
  [PATCH v3 10/11] ARM: dts: sun8i: add pinmux for LCD pins of V3s SoC Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:30 +0200
  [PATCH v3 11/11] [DO NOT MERGE] ARM: dts: sun8i: enable LCD panel of Lichee Pi Zero Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 22:40 +0200
  [PATCH v3 02/11] clk: sunxi-ng: add support for DE2 CCU Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 23:10 +0200
  [PATCH v3 03/11] dt-bindings: add bindings for DE2 on V3s SoC Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 23:30 +0200
    Re: [PATCH v3 03/11] dt-bindings: add bindings for DE2 on V3s SoC Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-04-03 10:10 +0200
  [PATCH v3 04/11] drm/sun4i: abstract the layer type Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 23:40 +0200
    Re: [PATCH v3 04/11] drm/sun4i: abstract the layer type Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-04-03 10:20 +0200
      Re: [PATCH v3 04/11] drm/sun4i: abstract the layer type Chen-Yu Tsai <wens@csie.org> - 2017-04-03 13:00 +0200
    Re: [PATCH v3 04/11] drm/sun4i: abstract the layer type Sean Paul <seanpaul@chromium.org> - 2017-04-04 21:30 +0200
      Re: [linux-sunxi] Re: [PATCH v3 04/11] drm/sun4i: abstract the layer type Chen-Yu Tsai <wens@csie.org> - 2017-04-05 04:30 +0200
        Re: [linux-sunxi] Re: [PATCH v3 04/11] drm/sun4i: abstract the layer  type icenowy@aosc.io - 2017-04-05 19:20 +0200
  [PATCH v3 06/11] drm/sun4i: add support for Allwinner DE2 mixers Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 23:50 +0200
    Re: [linux-sunxi] [PATCH v3 06/11] drm/sun4i: add support for Allwinner DE2 mixers Jernej Škrabec <jernej.skrabec@siol.net> - 2017-03-30 00:40 +0200
  [PATCH v3 05/11] drm/sun4i: abstract a mixer type Icenowy Zheng <icenowy@aosc.io> - 2017-03-29 23:50 +0200
    Re: [PATCH v3 05/11] drm/sun4i: abstract a mixer type Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-04-03 10:30 +0200

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