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 }; 28 29 struct msm_dsi_phy_cfg { 30 struct dsi_reg_config reg_cfg; 31 struct msm_dsi_phy_ops ops; 32 33 unsigned long min_pll_rate; 34 unsigned long max_pll_rate; 35 36 const resource_size_t io_start[DSI_MAX]; 37 const int num_dsi_phy; 38 const int quirks; 39 bool has_phy_regulator; 40 bool has_phy_lane; 41 }; 42 43 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs; 44 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs; 45 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs; 46 extern const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs; 47 extern const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs; 48 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs; 49 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs; 50 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs; 51 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs; 52 extern const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs; 53 extern const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs; 54 55 struct msm_dsi_dphy_timing { 56 u32 clk_zero; 57 u32 clk_trail; 58 u32 clk_prepare; 59 u32 hs_exit; 60 u32 hs_zero; 61 u32 hs_prepare; 62 u32 hs_trail; 63 u32 hs_rqst; 64 u32 ta_go; 65 u32 ta_sure; 66 u32 ta_get; 67 68 struct msm_dsi_phy_shared_timings shared_timings; 69 70 /* For PHY v2 only */ 71 u32 hs_rqst_ckln; 72 u32 hs_prep_dly; 73 u32 hs_prep_dly_ckln; 74 u8 hs_halfbyte_en; 75 u8 hs_halfbyte_en_ckln; 76 }; 77 78 #define DSI_BYTE_PLL_CLK 0 79 #define DSI_PIXEL_PLL_CLK 1 80 #define NUM_PROVIDED_CLKS 2 81 82 struct msm_dsi_phy { 83 struct platform_device *pdev; 84 void __iomem *base; 85 void __iomem *pll_base; 86 void __iomem *reg_base; 87 void __iomem *lane_base; 88 int id; 89 90 struct clk *ahb_clk; 91 struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX]; 92 93 struct msm_dsi_dphy_timing timing; 94 const struct msm_dsi_phy_cfg *cfg; 95 96 enum msm_dsi_phy_usecase usecase; 97 bool regulator_ldo_mode; 98 99 struct clk_hw *vco_hw; 100 bool pll_on; 101 102 struct clk_hw_onecell_data *provided_clocks; 103 104 bool state_saved; 105 }; 106 107 /* 108 * PHY internal functions 109 */ 110 int msm_dsi_dphy_timing_calc(struct msm_dsi_dphy_timing *timing, 111 struct msm_dsi_phy_clk_request *clk_req); 112 int msm_dsi_dphy_timing_calc_v2(struct msm_dsi_dphy_timing *timing, 113 struct msm_dsi_phy_clk_request *clk_req); 114 int msm_dsi_dphy_timing_calc_v3(struct msm_dsi_dphy_timing *timing, 115 struct msm_dsi_phy_clk_request *clk_req); 116 int msm_dsi_dphy_timing_calc_v4(struct msm_dsi_dphy_timing *timing, 117 struct msm_dsi_phy_clk_request *clk_req); 118 119 #endif /* __DSI_PHY_H__ */ 120