Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / gpu / nvidia,gk20a.txt

diff --git a/kernel/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/kernel/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
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+NVIDIA GK20A Graphics Processing Unit
+
+Required properties:
+- compatible: "nvidia,<chip>-<gpu>"
+  Currently recognized values:
+  - nvidia,tegra124-gk20a
+- reg: Physical base address and length of the controller's registers.
+  Must contain two entries:
+  - first entry for bar0
+  - second entry for bar1
+- interrupts: Must contain an entry for each entry in interrupt-names.
+  See ../interrupt-controller/interrupts.txt for details.
+- interrupt-names: Must include the following entries:
+  - stall
+  - nonstall
+- vdd-supply: regulator for supply voltage.
+- 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:
+  - gpu
+  - pwr
+- resets: Must contain an entry for each entry in reset-names.
+  See ../reset/reset.txt for details.
+- reset-names: Must include the following entries:
+  - gpu
+
+Example:
+
+       gpu@0,57000000 {
+               compatible = "nvidia,gk20a";
+               reg = <0x0 0x57000000 0x0 0x01000000>,
+                     <0x0 0x58000000 0x0 0x01000000>;
+               interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-names = "stall", "nonstall";
+               vdd-supply = <&vdd_gpu>;
+               clocks = <&tegra_car TEGRA124_CLK_GPU>,
+                        <&tegra_car TEGRA124_CLK_PLL_P_OUT5>;
+               clock-names = "gpu", "pwr";
+               resets = <&tegra_car 184>;
+               reset-names = "gpu";
+               status = "disabled";
+       };