77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
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/*
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* drivers/video/tegra/host/gr3d/scale_emc.h
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*
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* Tegra Graphics Host 3D Clock Scaling
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*
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* Copyright (c) 2010-2015, NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NVHOST_T30_SCALE3D_H
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#define NVHOST_T30_SCALE3D_H
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struct nvhost_device_profile;
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struct platform_device;
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struct device;
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struct dentry;
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struct clk;
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struct nvhost_emc_params {
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long emc_slope;
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long emc_offset;
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long emc_dip_slope;
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long emc_dip_offset;
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long emc_xmid;
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bool linear;
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};
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#if defined(CONFIG_TEGRA_GRHOST_SCALE)
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/* Suspend is called when powering down module */
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void nvhost_scale_emc_suspend(struct device *);
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/* Initialization and de-initialization for module */
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void nvhost_scale_emc_init(struct platform_device *pdev);
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void nvhost_scale_emc_deinit(struct platform_device *pdev);
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/* Callback for generic profile. The callback handles setting
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* the frequencies of EMC and the second 3d unit (if available) */
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void nvhost_scale_emc_callback(struct nvhost_device_profile *profile,
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unsigned long freq);
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void nvhost_scale_emc_calibrate_emc(struct nvhost_emc_params *emc_params,
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struct clk *clk_3d, struct clk *clk_3d_emc,
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bool linear_emc);
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long nvhost_scale_emc_get_emc_rate(struct nvhost_emc_params *emc_params,
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long freq);
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#else
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static inline void nvhost_scale_emc_suspend(struct device *d) { }
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static inline void nvhost_scale_emc_init(struct platform_device *pdev) { }
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static inline void nvhost_scale_emc_deinit(struct platform_device *pdev) { }
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static inline void nvhost_scale_emc_callback(struct nvhost_device_profile *profile,
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unsigned long freq) { }
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static inline void nvhost_scale_emc_calibrate_emc(struct nvhost_emc_params *emc_params,
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struct clk *clk_3d,
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struct clk *clk_3d_emc,
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bool linear_emc) { }
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static inline long nvhost_scale_emc_get_emc_rate(struct nvhost_emc_params *emc_params,
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long freq)
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{
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return 0;
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}
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#endif
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#endif
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