1 /* 2 * Copyright (c) 2024, Rockchip, Inc. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef RK_SCMI_CLOCK_H 8 #define RK_SCMI_CLOCK_H 9 10 #include <stdint.h> 11 12 #include <common.h> 13 14 struct rk_scmi_clock; 15 16 struct rk_clk_ops { 17 unsigned long (*get_rate)(struct rk_scmi_clock *clock); 18 int (*set_rate)(struct rk_scmi_clock *clock, unsigned long rate); 19 int (*set_status)(struct rk_scmi_clock *clock, bool status); 20 }; 21 22 typedef struct rk_scmi_clock { 23 char name[SCMI_CLOCK_NAME_LENGTH_MAX]; 24 uint8_t enable; 25 int8_t is_security; 26 uint32_t id; 27 uint32_t rate_cnt; 28 uint64_t cur_rate; 29 uint32_t enable_count; 30 const struct rk_clk_ops *clk_ops; 31 unsigned long *rate_table; 32 } rk_scmi_clock_t; 33 34 /* 35 * Return number of clock controllers for an agent 36 * @agent_id: SCMI agent ID 37 * Return number of clock controllers 38 */ 39 size_t rockchip_scmi_clock_count(unsigned int agent_id); 40 41 /* 42 * Get rk_scmi_clock_t point 43 * @agent_id: SCMI agent ID 44 * @scmi_id: SCMI clock ID 45 * Return a rk_scmi_clock_t point 46 */ 47 rk_scmi_clock_t *rockchip_scmi_get_clock(uint32_t agent_id, 48 uint32_t scmi_id); 49 50 #endif /* RK_SCMI_CLOCK_H */ 51