diff options
Diffstat (limited to 'drivers/clk/tegra/cvb.h')
| -rw-r--r-- | drivers/clk/tegra/cvb.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/clk/tegra/cvb.h b/drivers/clk/tegra/cvb.h new file mode 100644 index 000000000..c1f077993 --- /dev/null +++ b/drivers/clk/tegra/cvb.h @@ -0,0 +1,68 @@ +/* + * Utility functions for parsing Tegra CVB voltage tables + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#ifndef __DRIVERS_CLK_TEGRA_CVB_H +#define __DRIVERS_CLK_TEGRA_CVB_H + +#include <linux/types.h> + +struct device; + +#define MAX_DVFS_FREQS 40 + +struct rail_alignment { + int offset_uv; + int step_uv; +}; + +struct cvb_coefficients { + int c0; + int c1; + int c2; +}; + +struct cvb_table_freq_entry { + unsigned long freq; + struct cvb_coefficients coefficients; +}; + +struct cvb_cpu_dfll_data { + u32 tune0_low; + u32 tune0_high; + u32 tune1; +}; + +struct cvb_table { + int speedo_id; + int process_id; + + int min_millivolts; + int max_millivolts; + struct rail_alignment alignment; + + int speedo_scale; + int voltage_scale; + struct cvb_table_freq_entry entries[MAX_DVFS_FREQS]; + struct cvb_cpu_dfll_data cpu_dfll_data; +}; + +const struct cvb_table * +tegra_cvb_add_opp_table(struct device *dev, const struct cvb_table *cvb_tables, + size_t count, int process_id, int speedo_id, + int speedo_value, unsigned long max_freq); +void tegra_cvb_remove_opp_table(struct device *dev, + const struct cvb_table *table, + unsigned long max_freq); + +#endif |