/* * Copyright (c) 2023-2024, ArtInChip Technology Co., Ltd * * SPDX-License-Identifier: Apache-2.0 */ #include "panel_com.h" #include "panel_dsi.h" #define HX8394_RESET_PIN "PE.5" static struct gpio_desc reset_gpio; /* Manufacturer specific commands sent via DSI, listed in HX8394-F datasheet */ #define HX8394_CMD_SETSEQUENCE 0xb0 #define HX8394_CMD_SETPOWER 0xb1 #define HX8394_CMD_SETDISP 0xb2 #define HX8394_CMD_SETCYC 0xb4 #define HX8394_CMD_SETVCOM 0xb6 #define HX8394_CMD_SETTE 0xb7 #define HX8394_CMD_SETSENSOR 0xb8 #define HX8394_CMD_SETEXTC 0xb9 #define HX8394_CMD_SETMIPI 0xba #define HX8394_CMD_SETOTP 0xbb #define HX8394_CMD_SETREGBANK 0xbd #define HX8394_CMD_SETSTBA 0xc0 #define HX8394_CMD_SETDGCLUT 0xc1 #define HX8394_CMD_SETID 0xc3 #define HX8394_CMD_SETDDB 0xc4 #define HX8394_CMD_SETECO 0xc6 #define HX8394_CMD_SETCABC 0xc9 #define HX8394_CMD_SETCABCGAIN 0xca #define HX8394_CMD_SETPANEL 0xcc #define HX8394_CMD_SETOFFSET 0xd2 #define HX8394_CMD_SETGIP0 0xd3 #define HX8394_CMD_SETIOOPT 0xd4 #define HX8394_CMD_SETGIP1 0xd5 #define HX8394_CMD_SETGIP2 0xd6 #define HX8394_CMD_SETGIP3 0xd8 #define HX8394_CMD_SETGPO 0xd6 #define HX8394_CMD_SETSCALING 0xdd #define HX8394_CMD_SETIDLE 0xdf #define HX8394_CMD_SETGAMMA 0xe0 #define HX8394_CMD_SETCHEMODE_DYN 0xe4 #define HX8394_CMD_SETCHE 0xe5 #define HX8394_CMD_SETCESEL 0xe6 #define HX8394_CMD_SET_SP_CMD 0xe9 #define HX8394_CMD_SETREADINDEX 0xfe #define HX8394_CMD_GETSPIREAD 0xff static void panel_gpio_init(struct aic_panel *panel) { panel_get_gpio(&reset_gpio, HX8394_RESET_PIN); panel_gpio_set_value(&reset_gpio, 1); aic_delay_ms(100); panel_gpio_set_value(&reset_gpio, 0); aic_delay_ms(120); panel_gpio_set_value(&reset_gpio, 1); aic_delay_ms(120); } static int panel_enable(struct aic_panel *panel) { int ret; panel_gpio_init(panel); panel_di_enable(panel, 0); panel_dsi_send_perpare(panel); /* 5.19.8 SETEXTC: Set extension command (B9h) */ panel_dsi_generic_send_seq(panel, 0xb9, 0xff, 0x83, 0x94); /* 5.19.9 SETMIPI: Set MIPI control (BAh) */ panel_dsi_generic_send_seq(panel, 0xba, 0x63, 0x03, 0x68, 0x7b, 0xb2, 0xc0); /* 5.19.2 SETPOWER: Set power (B1h) */ panel_dsi_generic_send_seq(panel, 0xb1, 0x48, 0x0f, 0x6f, 0x09, 0x32, 0x54, 0x71, 0x51, 0x57, 0x43); /* 5.19.3 SETOFFSET: Set VP_REFS and VN_REF voltage (D2h) */ panel_dsi_generic_send_seq(panel, 0xd2, 0x00, 0x80, 0x78, 0x0c, 0x0d, 0x22); /* 5.19.3 SETDISP: Set display related register (B2h) */ panel_dsi_generic_send_seq(panel, 0xb2, 0x00, 0x80, 0x78, 0x0c, 0x0d, 0x22, 0x00, 0x00, 0x00, 0x00, 0xc8); /* 5.19.4 SETCYC: Set display waveform cycles (B4h) */ panel_dsi_generic_send_seq(panel, 0xb4, 0x69, 0x6a, 0x69, 0x6a, 0x69, 0x6a, 0x01, 0x0c, 0x7c, 0x55, 0x00, 0x3f, 0x69, 0x6a, 0x69, 0x6a, 0x69, 0x6a, 0x01, 0x0c, 0x7c); /* 5.19.5 SETVCOM: Set VCOM voltage (B6h) */ panel_dsi_generic_send_seq(panel, 0xb6, 0x6e, 0x6e); /* 5.19.19 SETGIP0: Set GIP Option0 (D3h) */ panel_dsi_generic_send_seq(panel, 0xd3, 0xd3, 0x00, 0x00, 0x07, 0x07, 0x40, 0x07, 0x0c, 0x00, 0x08, 0x10, 0x08, 0x54, 0x15, 0xaa, 0x05, 0xaa, 0x02, 0x15, 0x16, 0x06, 0x05, 0x06, 0x47, 0x44, 0x0a, 0x0a, 0x4b, 0x10, 0x07, 0x07, 0x0c, 0x40); /* 5.19.20 Set GIP Option1 (D5h) */ panel_dsi_generic_send_seq(panel, 0xd5, 0x20, 0x18, 0x18, 0x21, 0x26, 0x18, 0x24, 0x27, 0x1c, 0x25, 0x1d, 0x1c, 0x00, 0x1d, 0x02, 0x01, 0x04, 0x03, 0x18, 0x18, 0x06, 0x05, 0x18, 0x18, 0x08, 0x07, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x09, 0x18, 0x18, 0x0a, 0x0b, 0x18, 0x18, 0x18, 0x18); /* 5.19.21 Set GIP Option2 (D6h) */ panel_dsi_generic_send_seq(panel, 0xd6, 0x25, 0x18, 0x18, 0x24, 0x27, 0x18, 0x21, 0x26, 0x1c, 0x20, 0x1D, 0x1c, 0x0b, 0x1d, 0x09, 0x0a, 0x07, 0x08, 0x18, 0x18, 0x05, 0x06, 0x18, 0x18, 0x03, 0x04, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x02, 0x18, 0x18, 0x01, 0x00, 0x18, 0x18, 0x18, 0x18); /* 5.19.25 SETGAMMA: Set gamma curve related setting (E0h) */ panel_dsi_generic_send_seq(panel, 0xe0, 0x00, 0x22, 0x2c, 0x32, 0x34, 0x38, 0x3b, 0x39, 0x71, 0x7f, 0x8d, 0x8a, 0x91, 0x9e, 0xa2, 0xa4, 0xad, 0xae, 0xa6, 0xb2, 0xbf, 0x5c, 0x57, 0x5f, 0x5d, 0x5e, 0x5a, 0x54, 0x5c, 0x00, 0x22, 0x2c, 0x32, 0x34, 0x38, 0x3b, 0x39, 0x71, 0x7f, 0x8d, 0x8a, 0x90, 0x9f, 0xa0, 0xa3, 0xaf, 0xaf, 0xa7, 0xb2, 0xbf, 0x5c, 0x59, 0x5f, 0x5e, 0x5e, 0x5c, 0x58, 0x5c); /* 5.19.12 SETIOOPT (C0h), Set Source Option */ panel_dsi_generic_send_seq(panel, 0xc0, 0x1f, 0x31); /* 5.19.17 SETPANEL (CCh) */ panel_dsi_generic_send_seq(panel, 0xcc, 0x03); /* 5.19.23 SETIOPT (D4h) */ panel_dsi_generic_send_seq(panel, 0xd4, 0x02); /* 5.19.11 Set register bank (BDh) */ panel_dsi_generic_send_seq(panel, 0xbd, 0x02); /* 5.19.26 SETGIP3 (D8h) */ panel_dsi_generic_send_seq(panel, 0xd8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF); /* 5.19.11 Set register bank (BDh) */ panel_dsi_generic_send_seq(panel, 0xbd, 0x00); /* 5.19.11 Set register bank (BDh) */ panel_dsi_generic_send_seq(panel, 0xbd, 0x01); /* 5.19.2 SETPOWER: Set power (B1h) */ panel_dsi_generic_send_seq(panel, 0xb1, 0x00); /* 5.19.11 Set register bank (BDh) */ panel_dsi_generic_send_seq(panel, 0xbd, 0x00); /* 5.19.16 SETECO (C6h) */ panel_dsi_generic_send_seq(panel, 0xc6, 0xed); ret = panel_dsi_dcs_exit_sleep_mode(panel); if (ret < 0) { pr_err("Failed to exit sleep mode: %d\n", ret); return ret; } aic_delay_ms(120); ret = panel_dsi_dcs_set_display_on(panel); if (ret < 0) { pr_err("Failed to set display on: %d\n", ret); return ret; } aic_delay_ms(5); panel_dsi_setup_realmode(panel); panel_de_timing_enable(panel, 0); panel_backlight_enable(panel, 0); return 0; } static struct aic_panel_funcs panel_funcs = { .disable = panel_default_disable, .unprepare = panel_default_unprepare, .prepare = panel_default_prepare, .enable = panel_enable, .register_callback = panel_register_callback, }; static struct display_timing hx8394_timing = { .pixelclock = 63000000, .hactive = 720, .hfront_porch = 100, .hback_porch = 20, .hsync_len = 20, .vactive = 1280, .vfront_porch = 15, .vback_porch = 12, .vsync_len = 2, }; struct panel_dsi dsi = { .mode = DSI_MOD_VID_BURST, .format = DSI_FMT_RGB888, .lane_num = 4, }; struct aic_panel dsi_hx8394 = { .name = "panel-hx8394", .timings = &hx8394_timing, .funcs = &panel_funcs, .dsi = &dsi, .connector_type = AIC_MIPI_COM, };