1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * clk-dfll.h - prototypes and macros for the Tegra DFLL clocksource driver 4 * Copyright (C) 2013-2019 NVIDIA Corporation. All rights reserved. 5 * 6 * Aleksandr Frid <afrid@nvidia.com> 7 * Paul Walmsley <pwalmsley@nvidia.com> 8 */ 9 10 #ifndef __DRIVERS_CLK_TEGRA_CLK_DFLL_H 11 #define __DRIVERS_CLK_TEGRA_CLK_DFLL_H 12 13 #include <linux/platform_device.h> 14 #include <linux/reset.h> 15 #include <linux/types.h> 16 17 #include "cvb.h" 18 19 /** 20 * struct tegra_dfll_soc_data - SoC-specific hooks/integration for the DFLL driver 21 * @dev: struct device * that holds the OPP table for the DFLL 22 * @max_freq: maximum frequency supported on this SoC 23 * @cvb: CPU frequency table for this SoC 24 * @alignment: parameters of the regulator step and offset 25 * @init_clock_trimmers: callback to initialize clock trimmers 26 * @set_clock_trimmers_high: callback to tune clock trimmers for high voltage 27 * @set_clock_trimmers_low: callback to tune clock trimmers for low voltage 28 */ 29 struct tegra_dfll_soc_data { 30 struct device *dev; 31 unsigned long max_freq; 32 const struct cvb_table *cvb; 33 struct rail_alignment alignment; 34 35 void (*init_clock_trimmers)(void); 36 void (*set_clock_trimmers_high)(void); 37 void (*set_clock_trimmers_low)(void); 38 }; 39 40 int tegra_dfll_register(struct platform_device *pdev, 41 struct tegra_dfll_soc_data *soc); 42 struct tegra_dfll_soc_data *tegra_dfll_unregister(struct platform_device *pdev); 43 int tegra_dfll_runtime_suspend(struct device *dev); 44 int tegra_dfll_runtime_resume(struct device *dev); 45 46 #endif /* __DRIVERS_CLK_TEGRA_CLK_DFLL_H */ 47