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dec727399a
This commit adds support for both DSI outputs found on Tegra. Only very minimal functionality is implemented, so advanced features like ganged mode won't work. Due to the lack of other test hardware, some sections of the driver are hardcoded to work with Dalmore. Signed-off-by: Thierry Reding <treding@nvidia.com>
326 lines
10 KiB
Plaintext
326 lines
10 KiB
Plaintext
NVIDIA Tegra host1x
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Required properties:
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- compatible: "nvidia,tegra<chip>-host1x"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- #address-cells: The number of cells used to represent physical base addresses
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in the host1x address space. Should be 1.
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- #size-cells: The number of cells used to represent the size of an address
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range in the host1x address space. Should be 1.
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- ranges: The mapping of the host1x address space to the CPU address space.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- host1x
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The host1x top-level node defines a number of children, each representing one
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of the following host1x client modules:
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- mpe: video encoder
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Required properties:
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- compatible: "nvidia,tegra<chip>-mpe"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- mpe
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- vi: video input
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Required properties:
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- compatible: "nvidia,tegra<chip>-vi"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- vi
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- epp: encoder pre-processor
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Required properties:
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- compatible: "nvidia,tegra<chip>-epp"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- epp
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- isp: image signal processor
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Required properties:
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- compatible: "nvidia,tegra<chip>-isp"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- isp
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- gr2d: 2D graphics engine
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Required properties:
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- compatible: "nvidia,tegra<chip>-gr2d"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- 2d
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- gr3d: 3D graphics engine
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Required properties:
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- compatible: "nvidia,tegra<chip>-gr3d"
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- reg: Physical base address and length of the controller's registers.
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- clocks: Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names: Must include the following entries:
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(This property may be omitted if the only clock in the list is "3d")
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- 3d
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This MUST be the first entry.
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- 3d2 (Only required on SoCs with two 3D clocks)
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- 3d
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- 3d2 (Only required on SoCs with two 3D clocks)
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- dc: display controller
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Required properties:
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- compatible: "nvidia,tegra<chip>-dc"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names: Must include the following entries:
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- dc
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This MUST be the first entry.
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- parent
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- dc
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Each display controller node has a child node, named "rgb", that represents
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the RGB output associated with the controller. It can take the following
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optional properties:
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- nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
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- nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
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- nvidia,edid: supplies a binary EDID blob
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- nvidia,panel: phandle of a display panel
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- hdmi: High Definition Multimedia Interface
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Required properties:
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- compatible: "nvidia,tegra<chip>-hdmi"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- vdd-supply: regulator for supply voltage
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- pll-supply: regulator for PLL
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- clocks: Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names: Must include the following entries:
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- hdmi
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This MUST be the first entry.
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- parent
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- hdmi
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Optional properties:
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- nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
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- nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
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- nvidia,edid: supplies a binary EDID blob
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- nvidia,panel: phandle of a display panel
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- tvo: TV encoder output
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Required properties:
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- compatible: "nvidia,tegra<chip>-tvo"
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- reg: Physical base address and length of the controller's registers.
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- interrupts: The interrupt outputs from the controller.
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- clocks: Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- dsi: display serial interface
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Required properties:
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- compatible: "nvidia,tegra<chip>-dsi"
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- reg: Physical base address and length of the controller's registers.
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- clocks: Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names: Must include the following entries:
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- dsi
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This MUST be the first entry.
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- lp
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- parent
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- resets: Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names: Must include the following entries:
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- dsi
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- nvidia,mipi-calibrate: Should contain a phandle and a specifier specifying
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which pads are used by this DSI output and need to be calibrated. See also
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../mipi/nvidia,tegra114-mipi.txt.
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Optional properties:
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- nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
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- nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
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- nvidia,edid: supplies a binary EDID blob
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- nvidia,panel: phandle of a display panel
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Example:
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/ {
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...
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host1x {
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compatible = "nvidia,tegra20-host1x", "simple-bus";
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reg = <0x50000000 0x00024000>;
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interrupts = <0 65 0x04 /* mpcore syncpt */
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0 67 0x04>; /* mpcore general */
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clocks = <&tegra_car TEGRA20_CLK_HOST1X>;
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resets = <&tegra_car 28>;
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reset-names = "host1x";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x54000000 0x54000000 0x04000000>;
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mpe {
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compatible = "nvidia,tegra20-mpe";
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reg = <0x54040000 0x00040000>;
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interrupts = <0 68 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_MPE>;
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resets = <&tegra_car 60>;
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reset-names = "mpe";
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};
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vi {
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compatible = "nvidia,tegra20-vi";
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reg = <0x54080000 0x00040000>;
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interrupts = <0 69 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_VI>;
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resets = <&tegra_car 100>;
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reset-names = "vi";
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};
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epp {
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compatible = "nvidia,tegra20-epp";
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reg = <0x540c0000 0x00040000>;
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interrupts = <0 70 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_EPP>;
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resets = <&tegra_car 19>;
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reset-names = "epp";
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};
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isp {
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compatible = "nvidia,tegra20-isp";
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reg = <0x54100000 0x00040000>;
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interrupts = <0 71 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_ISP>;
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resets = <&tegra_car 23>;
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reset-names = "isp";
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};
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gr2d {
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compatible = "nvidia,tegra20-gr2d";
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reg = <0x54140000 0x00040000>;
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interrupts = <0 72 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_GR2D>;
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resets = <&tegra_car 21>;
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reset-names = "2d";
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};
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gr3d {
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compatible = "nvidia,tegra20-gr3d";
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reg = <0x54180000 0x00040000>;
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clocks = <&tegra_car TEGRA20_CLK_GR3D>;
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resets = <&tegra_car 24>;
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reset-names = "3d";
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};
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dc@54200000 {
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compatible = "nvidia,tegra20-dc";
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reg = <0x54200000 0x00040000>;
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interrupts = <0 73 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_DISP1>,
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<&tegra_car TEGRA20_CLK_PLL_P>;
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clock-names = "dc", "parent";
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resets = <&tegra_car 27>;
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reset-names = "dc";
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rgb {
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status = "disabled";
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};
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};
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dc@54240000 {
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compatible = "nvidia,tegra20-dc";
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reg = <0x54240000 0x00040000>;
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interrupts = <0 74 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_DISP2>,
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<&tegra_car TEGRA20_CLK_PLL_P>;
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clock-names = "dc", "parent";
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resets = <&tegra_car 26>;
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reset-names = "dc";
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rgb {
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status = "disabled";
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};
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};
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hdmi {
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compatible = "nvidia,tegra20-hdmi";
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reg = <0x54280000 0x00040000>;
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interrupts = <0 75 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_HDMI>,
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<&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
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clock-names = "hdmi", "parent";
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resets = <&tegra_car 51>;
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reset-names = "hdmi";
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status = "disabled";
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};
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tvo {
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compatible = "nvidia,tegra20-tvo";
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reg = <0x542c0000 0x00040000>;
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interrupts = <0 76 0x04>;
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clocks = <&tegra_car TEGRA20_CLK_TVO>;
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status = "disabled";
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};
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dsi {
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compatible = "nvidia,tegra20-dsi";
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reg = <0x54300000 0x00040000>;
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clocks = <&tegra_car TEGRA20_CLK_DSI>,
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<&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
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clock-names = "dsi", "parent";
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resets = <&tegra_car 48>;
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reset-names = "dsi";
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status = "disabled";
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};
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};
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...
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};
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