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dt-bindings: Add documentation for GP10B GPU

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GP10B's definition is mostly similar to GK20A's and GM20B's. The only
noticeable difference is the use of power domains instead of a regulator
for power supply.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Alexandre Courbot 2017-03-30 18:26:44 +09:00 committed by Thierry Reding
parent 0e84ac6c71
commit bf594a896c
1 changed files with 24 additions and 1 deletions
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25
Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
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@ -5,6 +5,7 @@ Required properties:
Currently recognized values:
- nvidia,gk20a
- nvidia,gm20b
- nvidia,gp10b
- reg: Physical base address and length of the controller's registers.
Must contain two entries:
- first entry for bar0
@ -14,7 +15,8 @@ Required properties:
- interrupt-names: Must include the following entries:
- stall
- nonstall
- vdd-supply: regulator for supply voltage.
- vdd-supply: regulator for supply voltage. Only required for GPUs not using
power domains.
- 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:
@ -27,6 +29,8 @@ is also required:
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- gpu
- power-domains: GPUs that make use of power domains can define this property
instead of vdd-supply. Currently "nvidia,gp10b" makes use of this.
Optional properties:
- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
@ -68,3 +72,22 @@ Example for GM20B:
iommus = <&mc TEGRA_SWGROUP_GPU>;
status = "disabled";
};
Example for GP10B:
gpu@17000000 {
compatible = "nvidia,gp10b";
reg = <0x0 0x17000000 0x0 0x1000000>,
<0x0 0x18000000 0x0 0x1000000>;
interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "stall", "nonstall";
clocks = <&bpmp TEGRA186_CLK_GPCCLK>,
<&bpmp TEGRA186_CLK_GPU>;
clock-names = "gpu", "pwr";
resets = <&bpmp TEGRA186_RESET_GPU>;
reset-names = "gpu";
power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
iommus = <&smmu TEGRA186_SID_GPU>;
status = "disabled";
};