1 /* 2 * Utility functions for parsing Tegra CVB voltage tables 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 */ 14 15 #ifndef __DRIVERS_CLK_TEGRA_CVB_H 16 #define __DRIVERS_CLK_TEGRA_CVB_H 17 18 #include <linux/types.h> 19 20 struct device; 21 22 #define MAX_DVFS_FREQS 40 23 24 struct rail_alignment { 25 int offset_uv; 26 int step_uv; 27 }; 28 29 struct cvb_coefficients { 30 int c0; 31 int c1; 32 int c2; 33 }; 34 35 struct cvb_table_freq_entry { 36 unsigned long freq; 37 struct cvb_coefficients coefficients; 38 }; 39 40 struct cvb_cpu_dfll_data { 41 u32 tune0_low; 42 u32 tune0_high; 43 u32 tune1; 44 }; 45 46 struct cvb_table { 47 int speedo_id; 48 int process_id; 49 50 int min_millivolts; 51 int max_millivolts; 52 struct rail_alignment alignment; 53 54 int speedo_scale; 55 int voltage_scale; 56 struct cvb_table_freq_entry entries[MAX_DVFS_FREQS]; 57 struct cvb_cpu_dfll_data cpu_dfll_data; 58 }; 59 60 const struct cvb_table * 61 tegra_cvb_add_opp_table(struct device *dev, const struct cvb_table *cvb_tables, 62 size_t count, int process_id, int speedo_id, 63 int speedo_value, unsigned long max_freq); 64 void tegra_cvb_remove_opp_table(struct device *dev, 65 const struct cvb_table *table, 66 unsigned long max_freq); 67 68 #endif 69