Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (c) 2019 Samsung Electronics Co., Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *	      http://www.samsung.com/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Samsung Exynos SoC Adaptive Supply Voltage support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #ifndef __LINUX_SOC_EXYNOS_ASV_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define __LINUX_SOC_EXYNOS_ASV_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) /* HPM, IDS values to select target group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct asv_limit_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	unsigned int hpm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	unsigned int ids;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct exynos_asv_table {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	unsigned int num_rows;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	unsigned int num_cols;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	u32 *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct exynos_asv_subsys {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	struct exynos_asv *asv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	const char *cpu_dt_compat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	struct exynos_asv_table table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	unsigned int base_volt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	unsigned int offset_volt_h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	unsigned int offset_volt_l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct exynos_asv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	struct regmap *chipid_regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	struct exynos_asv_subsys subsys[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	int (*opp_get_voltage)(const struct exynos_asv_subsys *subs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			       int level, unsigned int voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned int group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	unsigned int table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	/* True if SG fields from PKG_ID register should be used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	bool use_sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	/* ASV bin read from DT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	int of_bin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static inline u32 __asv_get_table_entry(const struct exynos_asv_table *table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 					unsigned int row, unsigned int col)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	return table->buf[row * (table->num_cols) + col];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static inline u32 exynos_asv_opp_get_voltage(const struct exynos_asv_subsys *subsys,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 					unsigned int level, unsigned int group)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	return __asv_get_table_entry(&subsys->table, level, group + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static inline u32 exynos_asv_opp_get_frequency(const struct exynos_asv_subsys *subsys,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 					unsigned int level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	return __asv_get_table_entry(&subsys->table, level, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #endif /* __LINUX_SOC_EXYNOS_ASV_H */