98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/*
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* tegra124-dfll.h - prototypes and macros for the Tegra T124 DFLL clock source
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*
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* Copyright (C) 2012-2013 NVIDIA Corporation.
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* Aleksandr Frid <afrid@nvidia.com>
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* Paul Walmsley <pwalmsley@nvidia.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that 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 _LINUX_CLK_TEGRA124_DFLL_H_
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#define _LINUX_CLK_TEGRA124_DFLL_H_
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/thermal.h>
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enum tegra_dfll_therm_type {
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TEGRA_DFLL_THERM_FLOOR = 0,
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TEGRA_DFLL_THERM_CAP,
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};
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/* Function prototypes */
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#ifdef CONFIG_CLK_TEGRA_T124_DFLL
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extern int tegra124_dfll_suspend(struct platform_device *pdev);
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extern void tegra124_dfll_resume(struct platform_device *pdev);
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extern int tegra124_dfll_lock_loop(void);
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extern int tegra124_dfll_unlock_loop(void);
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extern int tegra124_dfll_get_fv_table(int *num_freqs, unsigned long **freqs,
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int **millivolts);
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/* Thermal interface */
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extern int tegra124_dfll_update_thermal_index(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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unsigned long new_idx);
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extern int tegra124_dfll_get_thermal_index(struct platform_device *pdev,
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enum tegra_dfll_therm_type type);
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extern int tegra124_dfll_count_therm_states(struct platform_device *pdev,
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enum tegra_dfll_therm_type type);
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extern int tegra124_dfll_get_therm_state_temp(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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unsigned long index);
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extern int tegra124_dfll_attach_thermal(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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struct thermal_cooling_device *cdev);
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extern int tegra124_dfll_detach_thermal(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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struct thermal_cooling_device *cdev);
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#else
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static inline int tegra124_dfll_suspend(struct platform_device *pdev)
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{ return 0; }
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static inline void tegra124_dfll_resume(struct platform_device *pdev)
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{ }
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static inline int tegra124_dfll_lock_loop(void)
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{ return -EPERM; }
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static inline int tegra124_dfll_unlock_loop(void)
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{ return -EPERM; }
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static inline int tegra124_dfll_get_fv_table(int *num_freqs,
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unsigned long **freqs, int **millivolts)
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{return -EPERM; }
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static inline int tegra124_dfll_update_thermal_index(
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struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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unsigned long new_idx)
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{ return 0; }
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static inline int tegra124_dfll_get_thermal_index(struct platform_device *pdev,
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enum tegra_dfll_therm_type type)
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{ return 0; }
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static inline int tegra124_dfll_count_therm_states(struct platform_device *pdev,
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enum tegra_dfll_therm_type type)
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{ return 0; }
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static inline int tegra124_dfll_get_therm_state_temp(
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struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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unsigned long index)
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{ return -EINVAL; }
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static inline int tegra124_dfll_attach_thermal(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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struct thermal_cooling_device *cdev)
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{ return 0; }
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static inline int tegra124_dfll_detach_thermal(struct platform_device *pdev,
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enum tegra_dfll_therm_type type,
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struct thermal_cooling_device *cdev)
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{ return 0; }
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#endif
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#endif
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