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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*/
#ifndef __DSI_PHY_H__
#define __DSI_PHY_H__
#include <linux/clk-provider.h>
#include <linux/regulator/consumer.h>
#include "dsi.h"
#define dsi_phy_read(offset) msm_readl((offset))
#define dsi_phy_write(offset, data) msm_writel((data), (offset))
struct msm_dsi_pll {
struct clk_hw clk_hw;
bool pll_on;
const struct msm_dsi_phy_cfg *cfg;
};
#define hw_clk_to_pll(x) container_of(x, struct msm_dsi_pll, clk_hw)
struct msm_dsi_phy_ops {
int (*pll_init)(struct msm_dsi_phy *phy);
int (*enable)(struct msm_dsi_phy *phy, int src_pll_id,
struct msm_dsi_phy_clk_request *clk_req);
void (*disable)(struct msm_dsi_phy *phy);
void (*save_pll_state)(struct msm_dsi_phy *phy);
int (*restore_pll_state)(struct msm_dsi_phy *phy);
};
struct msm_dsi_phy_cfg {
struct dsi_reg_config reg_cfg;
struct msm_dsi_phy_ops ops;
unsigned long min_pll_rate;
unsigned long max_pll_rate;
/*
* Each cell {phy_id, pll_id} of the truth table indicates
* if the source PLL selection bit should be set for each PHY.
* Fill default H/W values in illegal cells, eg. cell {0, 1}.
*/
bool src_pll_truthtable[DSI_MAX][DSI_MAX];
const resource_size_t io_start[DSI_MAX];
const int num_dsi_phy;
const int quirks;
bool has_phy_regulator;
bool has_phy_lane;
};
extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs;
struct msm_dsi_dphy_timing {
u32 clk_zero;
u32 clk_trail;
u32 clk_prepare;
u32 hs_exit;
u32 hs_zero;
u32 hs_prepare;
u32 hs_trail;
u32 hs_rqst;
u32 ta_go;
u32 ta_sure;
u32 ta_get;
struct msm_dsi_phy_shared_timings shared_timings;
/* For PHY v2 only */
u32 hs_rqst_ckln;
u32 hs_prep_dly;
u32 hs_prep_dly_ckln;
u8 hs_halfbyte_en;
u8 hs_halfbyte_en_ckln;
};
#define DSI_BYTE_PLL_CLK 0
#define DSI_PIXEL_PLL_CLK 1
#define NUM_PROVIDED_CLKS 2
struct msm_dsi_phy {
struct platform_device *pdev;
void __iomem *base;
void __iomem *reg_base;
void __iomem *lane_base;
int id;
struct clk *ahb_clk;
struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX];
struct msm_dsi_dphy_timing timing;
const struct msm_dsi_phy_cfg *cfg;
enum msm_dsi_phy_usecase usecase;
bool regulator_ldo_mode;
struct msm_dsi_pll *pll;
struct clk_hw_onecell_data *provided_clocks;
bool state_saved;
};
/*
* PHY internal functions
*/
int msm_dsi_dphy_timing_calc(struct msm_dsi_dphy_timing *timing,
struct msm_dsi_phy_clk_request *clk_req);
int msm_dsi_dphy_timing_calc_v2(struct msm_dsi_dphy_timing *timing,
struct msm_dsi_phy_clk_request *clk_req);
int msm_dsi_dphy_timing_calc_v3(struct msm_dsi_dphy_timing *timing,
struct msm_dsi_phy_clk_request *clk_req);
int msm_dsi_dphy_timing_calc_v4(struct msm_dsi_dphy_timing *timing,
struct msm_dsi_phy_clk_request *clk_req);
void msm_dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg,
u32 bit_mask);
#endif /* __DSI_PHY_H__ */
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