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target/rockchip: kernel add rockchip_dmc.h

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Liangbin Lian 2025-03-21 19:06:12 +08:00
parent d53da56687
commit bee149c530
1 changed files with 131 additions and 0 deletions
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131
target/linux/rockchip/files/include/soc/rockchip/rockchip_dmc.h Normal file
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/*
* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 __SOC_ROCKCHIP_DMC_H
#define __SOC_ROCKCHIP_DMC_H
#include <linux/devfreq.h>
/* for lcdc_type */
#define SCREEN_NULL 0
#define SCREEN_RGB 1
#define SCREEN_LVDS 2
#define SCREEN_DUAL_LVDS 3
#define SCREEN_MCU 4
#define SCREEN_TVOUT 5
#define SCREEN_HDMI 6
#define SCREEN_MIPI 7
#define SCREEN_DUAL_MIPI 8
#define SCREEN_EDP 9
#define SCREEN_TVOUT_TEST 10
#define SCREEN_LVDS_10BIT 11
#define SCREEN_DUAL_LVDS_10BIT 12
#define SCREEN_DP 13
#define DMCFREQ_TABLE_END ~1u
struct freq_map_table {
unsigned int min;
unsigned int max;
unsigned long freq;
};
struct rl_map_table {
unsigned int pn; /* panel number */
unsigned int rl; /* readlatency */
};
struct dmcfreq_common_info {
struct device *dev;
struct devfreq *devfreq;
struct freq_map_table *vop_bw_tbl;
struct freq_map_table *vop_frame_bw_tbl;
struct rl_map_table *vop_pn_rl_tbl;
struct delayed_work msch_rl_work;
unsigned long vop_4k_rate;
unsigned long vop_req_rate;
unsigned int read_latency;
unsigned int auto_freq_en;
unsigned int stall_time_ns;
bool is_msch_rl_work_started;
int (*set_msch_readlatency)(unsigned int rl);
};
struct dmcfreq_vop_info {
unsigned int line_bw_mbyte;
unsigned int frame_bw_mbyte;
unsigned int plane_num;
unsigned int plane_num_4k;
};
#if IS_REACHABLE(CONFIG_ARM_ROCKCHIP_DMC_DEVFREQ)
void rockchip_dmcfreq_lock(void);
void rockchip_dmcfreq_lock_nested(void);
void rockchip_dmcfreq_unlock(void);
int rockchip_dmcfreq_write_trylock(void);
void rockchip_dmcfreq_write_unlock(void);
int rockchip_dmcfreq_wait_complete(void);
int rockchip_dmcfreq_vop_bandwidth_init(struct dmcfreq_common_info *info);
int rockchip_dmcfreq_vop_bandwidth_request(struct dmcfreq_vop_info *vop_info);
void rockchip_dmcfreq_vop_bandwidth_update(struct dmcfreq_vop_info *vop_info);
unsigned int rockchip_dmcfreq_get_stall_time_ns(void);
#else
static inline void rockchip_dmcfreq_lock(void)
{
}
static inline void rockchip_dmcfreq_lock_nested(void)
{
}
static inline void rockchip_dmcfreq_unlock(void)
{
}
static inline int rockchip_dmcfreq_write_trylock(void)
{
return 0;
}
static inline void rockchip_dmcfreq_write_unlock(void)
{
}
static inline int rockchip_dmcfreq_wait_complete(void)
{
return 0;
}
static inline int
rockchip_dmcfreq_vop_bandwidth_request(struct dmcfreq_vop_info *vop_info)
{
return 0;
}
static inline void
rockchip_dmcfreq_vop_bandwidth_update(struct dmcfreq_vop_info *vop_info)
{
}
static inline void
rockchip_dmcfreq_vop_bandwidth_init(struct dmcfreq_common_info *info)
{
}
static inline unsigned int
rockchip_dmcfreq_get_stall_time_ns(void)
{
return 0;
}
#endif
#endif