dt-bindings: Add documentation for GP10B GPU

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>

diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
index ff3db65e50def8224096107eaf05827df884ca25..b7e4c74445108dcd2c966529a85a4a930b40e831 100644 (file)
--- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
+++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
@@ -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";
+       };