The Amlogic AXG SoC family has a downgraded VPU supporting only MIPI-DSI output after it's ENCL DPI encoder output.
Signed-off-by: Neil Armstrong narmstrong@baylibre.com --- .../bindings/display/amlogic,meson-vpu.yaml | 36 +++++++++++++++++-- 1 file changed, 33 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml index a8d202c9d004..e2e7d99d8ace 100644 --- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml +++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml @@ -31,8 +31,10 @@ description: |
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. + On the AXG family, the Video Input Unit direclty reads from DDR memory. This part is also in charge of the CSC (Colorspace Conversion). It can handle 2 OSD Planes and 2 Video Planes. + On the AXG family, only a single OSD plane without scalins is supported.
VPP: Video Post Processing -------------------------- @@ -49,11 +51,13 @@ description: | 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 + - ENCL : LCD DPI 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. + On the AXG and G12A family, the ENCL is connected to a DPI-to-DSI + transceiver.
properties: compatible: @@ -65,6 +69,7 @@ properties: - amlogic,meson-gxm-vpu # GXM (S912) - const: amlogic,meson-gx-vpu - enum: + - amlogic,meson-axg-vpu # AXG (A113D, A113X) - amlogic,meson-g12a-vpu # G12A (S905X2, S905Y2, S905D2)
reg: @@ -92,6 +97,11 @@ properties: description: A port node pointing to the HDMI-TX port node.
+ port@2: + type: object + description: + A port node pointing to the DPI port node. + "#address-cells": const: 1
@@ -102,11 +112,31 @@ required: - compatible - reg - interrupts - - port@0 - - port@1 - "#address-cells" - "#size-cells"
+allOf: + - if: + properties: + compatible: + enum: + - amlogic,meson-gx-vpu + - amlogic,meson-g12a-vpu + + then: + required: + - port@0 + - port@1 + - if: + properties: + compatible: + enum: + - amlogic,meson-axg-vpu + + then: + required: + - port@2 + additionalProperties: false
examples: