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drm/tegra: Add eDP support

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Add support for eDP functionality found on Tegra124 and later SoCs. Only
fast link training is currently supported.

Signed-off-by: Thierry Reding <[email protected]>
This commit is contained in:
Thierry Reding 2013-11-15 16:06:05 +01:00
commit 6b6b604215
10 changed files with 2077 additions and 2 deletions
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42
Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt
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@ -190,6 +190,48 @@ of the following host1x client modules:
- nvidia,edid: supplies a binary EDID blob
- nvidia,panel: phandle of a display panel
- sor: serial output resource
Required properties:
- compatible: "nvidia,tegra124-sor"
- 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:
- sor: clock input for the SOR hardware
- parent: input for the pixel clock
- dp: reference clock for the SOR clock
- safe: safe reference for the SOR clock during power up
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- sor
Optional properties:
- nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- nvidia,edid: supplies a binary EDID blob
- nvidia,panel: phandle of a display panel
Optional properties when driving an eDP output:
- nvidia,dpaux: phandle to a DispayPort AUX interface
- dpaux: DisplayPort AUX interface
- compatible: "nvidia,tegra124-dpaux"
- 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:
- dpaux: clock input for the DPAUX hardware
- parent: reference clock
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- dpaux
- vdd-supply: phandle of a supply that powers the DisplayPort link
Example:
/ {