ARM: tegra: Special-case the 3D clamps on Tegra124
A separate register is used to remove the clamps for the GPU on Tegra124. In order to be able to use the same API, special-case this particular partition. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
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@ -41,6 +41,8 @@
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#define PWRGATE_STATUS 0x38
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#define GPU_RG_CNTRL 0x2d4
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static int tegra_num_powerdomains;
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static int tegra_num_cpu_domains;
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static const u8 *tegra_cpu_domains;
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@ -136,6 +138,17 @@ int tegra_powergate_remove_clamping(int id)
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if (id < 0 || id >= tegra_num_powerdomains)
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return -EINVAL;
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/*
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* The Tegra124 GPU has a separate register (with different semantics)
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* to remove clamps.
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*/
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if (tegra_chip_id == TEGRA124) {
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if (id == TEGRA_POWERGATE_3D) {
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pmc_write(0, GPU_RG_CNTRL);
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return 0;
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}
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}
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/*
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* Tegra 2 has a bug where PCIE and VDE clamping masks are
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* swapped relatively to the partition ids
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