1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 4 */ 5 6 #ifndef __DSI_PHY_H__ 7 #define __DSI_PHY_H__ 8 9 #include <linux/clk-provider.h> 10 #include <linux/delay.h> 11 #include <linux/regulator/consumer.h> 12 13 #include "dsi.h" 14 15 #define dsi_phy_read(offset) msm_readl((offset)) 16 #define dsi_phy_write(offset, data) msm_writel((data), (offset)) 17 #define dsi_phy_write_udelay(offset, data, delay_us) { msm_writel((data), (offset)); udelay(delay_us); } 18 #define dsi_phy_write_ndelay(offset, data, delay_ns) { msm_writel((data), (offset)); ndelay(delay_ns); } 19 20 struct msm_dsi_phy_ops { 21 int (*pll_init)(struct msm_dsi_phy *phy); 22 int (*enable)(struct msm_dsi_phy *phy, 23 struct msm_dsi_phy_clk_request *clk_req); 24 void (*disable)(struct msm_dsi_phy *phy); 25 void (*save_pll_state)(struct msm_dsi_phy *phy); 26 int (*restore_pll_state)(struct msm_dsi_phy *phy); 27 bool (*set_continuous_clock)(struct msm_dsi_phy *phy, bool enable); 28 }; 29 30 struct msm_dsi_phy_cfg { 31 struct dsi_reg_config reg_cfg; 32 struct msm_dsi_phy_ops ops; 33 34 unsigned long min_pll_rate; 35 unsigned long max_pll_rate; 36 37 const resource_size_t io_start[DSI_MAX]; 38 const int num_dsi_phy; 39 const int quirks; 40 bool has_phy_regulator; 41 bool has_phy_lane; 42 }; 43 44 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs; 45 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs; 46 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs; 47 extern const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs; 48 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs; 49 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs; 50 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs; 51 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_8953_cfgs; 52 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs; 53 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs; 54 extern const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs; 55 extern const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs; 56 extern const struct msm_dsi_phy_cfg dsi_phy_7nm_7280_cfgs; 57 58 struct msm_dsi_dphy_timing { 59 u32 clk_zero; 60 u32 clk_trail; 61 u32 clk_prepare; 62 u32 hs_exit; 63 u32 hs_zero; 64 u32 hs_prepare; 65 u32 hs_trail; 66 u32 hs_rqst; 67 u32 ta_go; 68 u32 ta_sure; 69 u32 ta_get; 70 71 struct msm_dsi_phy_shared_timings shared_timings; 72 73 /* For PHY v2 only */ 74 u32 hs_rqst_ckln; 75 u32 hs_prep_dly; 76 u32 hs_prep_dly_ckln; 77 u8 hs_halfbyte_en; 78 u8 hs_halfbyte_en_ckln; 79 }; 80 81 #define DSI_BYTE_PLL_CLK 0 82 #define DSI_PIXEL_PLL_CLK 1 83 #define NUM_PROVIDED_CLKS 2 84 85 struct msm_dsi_phy { 86 struct platform_device *pdev; 87 void __iomem *base; 88 void __iomem *pll_base; 89 void __iomem *reg_base; 90 void __iomem *lane_base; 91 phys_addr_t base_size; 92 phys_addr_t pll_size; 93 phys_addr_t reg_size; 94 phys_addr_t lane_size; 95 int id; 96 97 struct clk *ahb_clk; 98 struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX]; 99 100 struct msm_dsi_dphy_timing timing; 101 const struct msm_dsi_phy_cfg *cfg; 102 103 enum msm_dsi_phy_usecase usecase; 104 bool regulator_ldo_mode; 105 bool cphy_mode; 106 107 struct clk_hw *vco_hw; 108 bool pll_on; 109 110 struct clk_hw_onecell_data *provided_clocks; 111 112 bool state_saved; 113 }; 114 115 /* 116 * PHY internal functions 117 */ 118 int msm_dsi_dphy_timing_calc(struct msm_dsi_dphy_timing *timing, 119 struct msm_dsi_phy_clk_request *clk_req); 120 int msm_dsi_dphy_timing_calc_v2(struct msm_dsi_dphy_timing *timing, 121 struct msm_dsi_phy_clk_request *clk_req); 122 int msm_dsi_dphy_timing_calc_v3(struct msm_dsi_dphy_timing *timing, 123 struct msm_dsi_phy_clk_request *clk_req); 124 int msm_dsi_dphy_timing_calc_v4(struct msm_dsi_dphy_timing *timing, 125 struct msm_dsi_phy_clk_request *clk_req); 126 int msm_dsi_cphy_timing_calc_v4(struct msm_dsi_dphy_timing *timing, 127 struct msm_dsi_phy_clk_request *clk_req); 128 129 #endif /* __DSI_PHY_H__ */ 130