From: Thierry Reding <treding@xxxxxxxxxx>
Tegra186 and later have an additional component in the display pipeline
called the display hub. Document the bindings which were missing.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
.../display/tegra/nvidia,tegra20-host1x.txt | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
index 47319214b5f6..2cf3cc4893da 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
@@ -297,6 +297,56 @@ of the following host1x client modules:
- reset-names: Must include the following entries:
- vic
+- display-hub: display controller hub
+ Required properties:
+ - compatible: "nvidia,tegra<chip>-display"
+ - reg: Physical base address and length of the controller's registers.
+ - interrupts: The interrupt outputs from the controller.
+ - clocks: Must contain an entry for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+ - clock-names: Must include the following entries:
+ - disp
+ - dsc
+ - hub
+ - resets: Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+ - reset-names: Must include the following entries:
+ - misc
+ - wgrp0
+ - wgrp1
+ - wgrp2
+ - wgrp3
+ - wgrp4
+ - wgrp5
+ - power-domains: A list of phandle and specifiers identifying the power
+ domains that the display hub is part of.
+ - ranges: Range of registers used for the display controllers.
+
+ Each subnode of the display hub represents one of the display controllers
+ available:
+
+ - display: display controller
+ - compatible: "nvidia,tegra<chip>-dc"
+ - reg: Physical base address and length of the controller's registers.
+ - interrupts: The interrupt outputs from the controller.
+ - clocks: Must contain an entry for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+ - clock-names: Must include the following entries:
+ - dc
+ - resets: Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+ - reset-names: Must include the following entries:
+ - dc
+ - power-domains: A list of phandle and specifiers that identify the power
+ domains that this display controller is part of.
+ - iommus: A phandle and specifier identifying the SMMU master interface of
+ this display controller.
+ - nvidia,outputs: A list of phandles of outputs that this display
+ controller can drive.
+ - nvidia,head: The number of the display controller head. This is used to
+ setup the various types of output to receive video data from the given
+ head.
+
Example:
/ {
--
2.24.1
