1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef _I2C_PTN3460_H_ 4 #define _I2C_PTN3460_H_ 5 6 #include <types.h> 7 8 #define PTN_EDID_OFF 0x00 9 #define PTN_EDID_LEN 0x80 10 #define PTN_CONFIG_OFF 0x80 11 #define PTN_CONFIG_LEN 0x19 12 #define PTN_FLASH_CFG_OFF 0xE8 13 #define PTN_FLASH_CFG_LEN 0x04 14 #define PTN_MAX_EDID_NUM 6 15 #define PTN_ENABLE_EMULATION (1 << 0) 16 17 /* Define some error codes that can be used */ 18 #define PTN_SUCCESS 0x00000000 19 #define PTN_BUS_ERROR 0x10000000 20 #define PTN_INVALID_EDID 0x20000000 21 #define PTN_INVALID_EDID_BLOCK 0x30000000 22 #define PTN_ERROR 0x40000000 23 24 struct ptn_3460_config { 25 u8 dp_interface_ctrl; /* DisplayPort interface control */ 26 u8 lvds_interface_ctrl1; /* LVDS interface control register 1 */ 27 u8 lvds_interface_ctrl2; /* LVDS interface control register 2 */ 28 u8 lvds_interface_ctrl3; /* LVDS interface control register 3 */ 29 u8 edid_rom_emulation; /* select which EDID-block is emulated */ 30 u8 edid_rom_access_ctrl; /* select which EDID block to map to 0..0x7F */ 31 u8 pwm_min[3]; /* smallest PWM frequency for back light */ 32 u8 pwm_max[3]; /* biggest PWM frequency for back light */ 33 u8 fast_link_ctrl; /* Fast link training control register */ 34 u8 pin_cfg_ctrl1; /* Pin configuration control register 1 */ 35 u8 pin_cfg_ctrl2; /* Pin configuration control register 2 */ 36 u8 pwm_default; /* Default PWM bit count in DPCD register */ 37 u16 pwm_value; /* Current PWM bit count in DPCD register */ 38 u8 pwm_default_freq; /* Default PWM frequency in DPCD register */ 39 u8 t3_timing; /* Panel T3 timing value */ 40 u8 t12_timing; /* Panel T12 timing value */ 41 u8 backlight_ctrl; /* Back light control register */ 42 u8 t2_delay; /* Panel T2 delay */ 43 u8 t4_timing; /* Panel T4 timing value */ 44 u8 t5_delay; /* Panel T5 delay */ 45 } __packed; 46 47 struct ptn_3460_flash { 48 u8 cmd; /* Flash command (erase or erase and flash) */ 49 u16 magic; /* Magic number needed by the flash algorithm */ 50 u8 trigger; /* Trigger for starting flash operation */ 51 } __packed; 52 53 /* We need functions which we can call to get mainboard specific data */ 54 enum cb_err mainboard_ptn3460_get_edid(uint8_t edid_data[PTN_EDID_LEN]); 55 uint8_t mainboard_ptn3460_select_edid_table(void); 56 enum cb_err mainboard_ptn3460_config(struct ptn_3460_config *cfg_ptr); 57 58 #endif /* _I2C_PTN3460_H_ */ 59