[PATCH v3 2/3] dt-bindings: display: amlogic,meson-vpu: convert to yaml
From: Neil Armstrong
Date: Thu Aug 08 2019 - 04:55:34 EST
Now that we have the DT validation in place, let's convert the device tree
bindings for the Amlogic Display Controller over to YAML schemas.
The original example has a leftover "dmc" memory cell, that has been
removed in the yaml rewrite.
The port connection table has been dropped in favor of a description
of each port.
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
---
.../bindings/display/amlogic,meson-vpu.txt | 121 ----------------
.../bindings/display/amlogic,meson-vpu.yaml | 137 ++++++++++++++++++
2 files changed, 137 insertions(+), 121 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
create mode 100644 Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
deleted file mode 100644
index be40a780501c..000000000000
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.txt
+++ /dev/null
@@ -1,121 +0,0 @@
-Amlogic Meson Display Controller
-================================
-
-The Amlogic Meson Display controller is composed of several components
-that are going to be documented below:
-
-DMC|---------------VPU (Video Processing Unit)----------------|------HHI------|
- | vd1 _______ _____________ _________________ | |
-D |-------| |----| | | | | HDMI PLL |
-D | vd2 | VIU | | Video Post | | Video Encoders |<---|-----VCLK |
-R |-------| |----| Processing | | | | |
- | osd2 | | | |---| Enci ----------|----|-----VDAC------|
-R |-------| CSC |----| Scalers | | Encp ----------|----|----HDMI-TX----|
-A | osd1 | | | Blenders | | Encl ----------|----|---------------|
-M |-------|______|----|____________| |________________| | |
-___|__________________________________________________________|_______________|
-
-
-VIU: Video Input Unit
----------------------
-
-The Video Input Unit is in charge of the pixel scanout from the DDR memory.
-It fetches the frames addresses, stride and parameters from the "Canvas" memory.
-This part is also in charge of the CSC (Colorspace Conversion).
-It can handle 2 OSD Planes and 2 Video Planes.
-
-VPP: Video Post Processing
---------------------------
-
-The Video Post Processing is in charge of the scaling and blending of the
-various planes into a single pixel stream.
-There is a special "pre-blending" used by the video planes with a dedicated
-scaler and a "post-blending" to merge with the OSD Planes.
-The OSD planes also have a dedicated scaler for one of the OSD.
-
-VENC: Video Encoders
---------------------
-
-The VENC is composed of the multiple pixel encoders :
- - ENCI : Interlace Video encoder for CVBS and Interlace HDMI
- - ENCP : Progressive Video Encoder for HDMI
- - ENCL : LCD LVDS Encoder
-The VENC Unit gets a Pixel Clocks (VCLK) from a dedicated HDMI PLL and clock
-tree and provides the scanout clock to the VPP and VIU.
-The ENCI is connected to a single VDAC for Composite Output.
-The ENCI and ENCP are connected to an on-chip HDMI Transceiver.
-
-Device Tree Bindings:
----------------------
-
-VPU: Video Processing Unit
---------------------------
-
-Required properties:
-- compatible: value should be different for each SoC family as :
- - GXBB (S905) : "amlogic,meson-gxbb-vpu"
- - GXL (S905X, S905D) : "amlogic,meson-gxl-vpu"
- - GXM (S912) : "amlogic,meson-gxm-vpu"
- followed by the common "amlogic,meson-gx-vpu"
- - G12A (S905X2, S905Y2, S905D2) : "amlogic,meson-g12a-vpu"
-- reg: base address and size of he following memory-mapped regions :
- - vpu
- - hhi
-- reg-names: should contain the names of the previous memory regions
-- interrupts: should contain the VENC Vsync interrupt number
-- amlogic,canvas: phandle to canvas provider node as described in the file
- ../soc/amlogic/amlogic,canvas.txt
-
-Optional properties:
-- power-domains: Optional phandle to associated power domain as described in
- the file ../power/power_domain.txt
-
-Required nodes:
-
-The connections to the VPU output video ports are modeled using the OF graph
-bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-The following table lists for each supported model the port number
-corresponding to each VPU output.
-
- Port 0 Port 1
------------------------------------------
- S905 (GXBB) CVBS VDAC HDMI-TX
- S905X (GXL) CVBS VDAC HDMI-TX
- S905D (GXL) CVBS VDAC HDMI-TX
- S912 (GXM) CVBS VDAC HDMI-TX
- S905X2 (G12A) CVBS VDAC HDMI-TX
- S905Y2 (G12A) CVBS VDAC HDMI-TX
- S905D2 (G12A) CVBS VDAC HDMI-TX
-
-Example:
-
-tv-connector {
- compatible = "composite-video-connector";
-
- port {
- tv_connector_in: endpoint {
- remote-endpoint = <&cvbs_vdac_out>;
- };
- };
-};
-
-vpu: vpu@d0100000 {
- compatible = "amlogic,meson-gxbb-vpu";
- reg = <0x0 0xd0100000 0x0 0x100000>,
- <0x0 0xc883c000 0x0 0x1000>,
- <0x0 0xc8838000 0x0 0x1000>;
- reg-names = "vpu", "hhi", "dmc";
- interrupts = <GIC_SPI 3 IRQ_TYPE_EDGE_RISING>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* CVBS VDAC output port */
- port@0 {
- reg = <0>;
-
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&tv_connector_in>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
new file mode 100644
index 000000000000..d1205a6697a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/display/amlogic,meson-vpu.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Amlogic Meson Display Controller
+
+maintainers:
+ - Neil Armstrong <narmstrong@xxxxxxxxxxxx>
+
+description: |
+ The Amlogic Meson Display controller is composed of several components
+ that are going to be documented below
+
+ DMC|---------------VPU (Video Processing Unit)----------------|------HHI------|
+ | vd1 _______ _____________ _________________ | |
+ D |-------| |----| | | | | HDMI PLL |
+ D | vd2 | VIU | | Video Post | | Video Encoders |<---|-----VCLK |
+ R |-------| |----| Processing | | | | |
+ | osd2 | | | |---| Enci ----------|----|-----VDAC------|
+ R |-------| CSC |----| Scalers | | Encp ----------|----|----HDMI-TX----|
+ A | osd1 | | | Blenders | | Encl ----------|----|---------------|
+ M |-------|______|----|____________| |________________| | |
+ ___|__________________________________________________________|_______________|
+
+
+ VIU: Video Input Unit
+ ---------------------
+
+ The Video Input Unit is in charge of the pixel scanout from the DDR memory.
+ It fetches the frames addresses, stride and parameters from the "Canvas" memory.
+ This part is also in charge of the CSC (Colorspace Conversion).
+ It can handle 2 OSD Planes and 2 Video Planes.
+
+ VPP: Video Post Processing
+ --------------------------
+
+ The Video Post Processing is in charge of the scaling and blending of the
+ various planes into a single pixel stream.
+ There is a special "pre-blending" used by the video planes with a dedicated
+ scaler and a "post-blending" to merge with the OSD Planes.
+ The OSD planes also have a dedicated scaler for one of the OSD.
+
+ VENC: Video Encoders
+ --------------------
+
+ The VENC is composed of the multiple pixel encoders
+ - ENCI : Interlace Video encoder for CVBS and Interlace HDMI
+ - ENCP : Progressive Video Encoder for HDMI
+ - ENCL : LCD LVDS Encoder
+ The VENC Unit gets a Pixel Clocks (VCLK) from a dedicated HDMI PLL and clock
+ tree and provides the scanout clock to the VPP and VIU.
+ The ENCI is connected to a single VDAC for Composite Output.
+ The ENCI and ENCP are connected to an on-chip HDMI Transceiver.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - amlogic,meson-gxbb-vpu # GXBB (S905)
+ - amlogic,meson-gxl-vpu # GXL (S905X, S905D)
+ - amlogic,meson-gxm-vpu # GXM (S912)
+ - const: amlogic,meson-gx-vpu
+ - enum:
+ - amlogic,meson-g12a-vpu # G12A (S905X2, S905Y2, S905D2)
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: vpu
+ - const: hhi
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+ description: phandle to the associated power domain
+
+ port@0:
+ type: object
+ description:
+ A port node pointing to the CVBS VDAC port node.
+
+ port@1:
+ type: object
+ description:
+ A port node pointing to the HDMI-TX port node.
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - port@0
+ - port@1
+ - "#address-cells"
+ - "#size-cells"
+
+examples:
+ - |
+ vpu: vpu@d0100000 {
+ compatible = "amlogic,meson-gxbb-vpu", "amlogic,meson-gx-vpu";
+ reg = <0xd0100000 0x100000>, <0xc883c000 0x1000>;
+ reg-names = "vpu", "hhi";
+ interrupts = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* CVBS VDAC output port */
+ port@0 {
+ reg = <0>;
+
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&tv_connector_in>;
+ };
+ };
+
+ /* HDMI TX output port */
+ port@1 {
+ reg = <1>;
+
+ hdmi_tx_out: endpoint {
+ remote-endpoint = <&hdmi_tx_in>;
+ };
+ };
+ };
--
2.22.0