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authorIngo Molnar <mingo@kernel.org>2014-08-22 08:04:15 (GMT)
committerIngo Molnar <mingo@kernel.org>2014-08-22 08:04:15 (GMT)
commit80b304fd00e8b667775ff791121b61ecd7cd0c03 (patch)
treeb4f2ec59fe062c43343ee4c2f10a6bcd0e4dcd1b /Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
parentfb21b84e7f809ef04b1e5aed5d463cf0d4866638 (diff)
parent6a7519e81321343165f89abb8b616df186d3e57a (diff)
downloadlinux-80b304fd00e8b667775ff791121b61ecd7cd0c03.tar.xz
Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming: * WARN_ON(!spin_is_locked()) always triggers on non-SMP machines. Swap it for the more canonical lockdep_assert_held() which always does the right thing - Guenter Roeck * Assign the correct value to efi.runtime_version on arm64 so that all the runtime services can be invoked - Semen Protsenko Signed-off-by: Ingo Molnar <mingo@kernel.org>
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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";
+ };