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![Stephen Warren](/assets/img/avatar_default.png)
In current Linux kernel Tegra DT files, 64-bit addresses are represented in unit addresses as a pair of comma-separated 32-bit values. Apparently this is no longer the correct representation for simple busses, and the unit address should be represented as a single 64-bit value. If this is changed in the DTs, arm/arm/mach-tegra/board2.c:ft_system_setup() will no longer be able to find and enable the GPU node, since it looks up the node by name. Fix that function to enable nodes based on their compatible value rather than their node name. This will work no matter what the node name is, i.e for DTs both before and after any rename operation. Cc: Thierry Reding <treding@nvidia.com> Cc: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
37 lines
620 B
C
37 lines
620 B
C
/*
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* (C) Copyright 2015
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* NVIDIA Corporation <www.nvidia.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_ARCH_TEGRA_GPU_H
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#define __ASM_ARCH_TEGRA_GPU_H
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#if defined(CONFIG_TEGRA_GPU)
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void tegra_gpu_config(void);
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#else /* CONFIG_TEGRA_GPU */
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static inline void tegra_gpu_config(void)
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{
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}
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#endif /* CONFIG_TEGRA_GPU */
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#if defined(CONFIG_OF_LIBFDT)
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int tegra_gpu_enable_node(void *blob, const char *gpupath);
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#else /* CONFIG_OF_LIBFDT */
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static inline int tegra_gpu_enable_node(void *blob, const char *compat)
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{
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return 0;
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}
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#endif /* CONFIG_OF_LIBFDT */
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#endif /* __ASM_ARCH_TEGRA_GPU_H */
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