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da93694952
Current patchset from Neil Armstring, some issues being worked through - HDMI CEC EDID Power-on - clock errors on dvfs
49 lines
1.6 KiB
Diff
49 lines
1.6 KiB
Diff
From 926a9328494aae7a94241a494b0d6ea27c300d3a Mon Sep 17 00:00:00 2001
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From: Maxime Jourdan <maxi.jourdan@wanadoo.fr>
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Date: Sat, 28 Jul 2018 22:40:27 +0200
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Subject: [PATCH] dt-bindings: soc: amlogic: add meson-canvas documentation
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DT bindings doc for amlogic,meson-canvas
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Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
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Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
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---
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.../bindings/soc/amlogic/amlogic,canvas.txt | 29 ++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt
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diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt
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new file mode 100644
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index 0000000..436d210
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt
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@@ -0,0 +1,29 @@
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+Amlogic Canvas
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+================================
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+
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+A canvas is a collection of metadata that describes a pixel buffer.
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+Those metadata include: width, height, phyaddr, wrapping, block mode
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+and endianness.
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+
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+Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data
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+rather than use the phy addresses directly. For instance, this is the case for
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+the video decoders and the display.
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+
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+Amlogic SoCs have 256 canvas.
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+
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+Device Tree Bindings:
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+---------------------
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+
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+Video Lookup Table
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+--------------------------
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+
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+Required properties:
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+- compatible: "amlogic,canvas"
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+- reg: Base physical address and size of the canvas registers.
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+
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+Example:
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+
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+canvas: video-lut@48 {
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+ compatible = "amlogic,canvas";
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+ reg = <0x0 0x48 0x0 0x14>;
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+};
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