xref: /openbmc/linux/drivers/gpu/drm/msm/dsi/dsi_cfg.c (revision 8e694cd2)
1 /*
2  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 and
6  * only version 2 as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  */
13 
14 #include "dsi_cfg.h"
15 
16 static const char * const dsi_v2_bus_clk_names[] = {
17 	"core_mmss_clk", "iface_clk", "bus_clk",
18 };
19 
20 static const struct msm_dsi_config apq8064_dsi_cfg = {
21 	.io_offset = 0,
22 	.reg_cfg = {
23 		.num = 3,
24 		.regs = {
25 			{"vdda", 100000, 100},	/* 1.2 V */
26 			{"avdd", 10000, 100},	/* 3.0 V */
27 			{"vddio", 100000, 100},	/* 1.8 V */
28 		},
29 	},
30 	.bus_clk_names = dsi_v2_bus_clk_names,
31 	.num_bus_clks = ARRAY_SIZE(dsi_v2_bus_clk_names),
32 };
33 
34 static const char * const dsi_6g_bus_clk_names[] = {
35 	"mdp_core_clk", "iface_clk", "bus_clk", "core_mmss_clk",
36 };
37 
38 static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
39 	.io_offset = DSI_6G_REG_SHIFT,
40 	.reg_cfg = {
41 		.num = 4,
42 		.regs = {
43 			{"gdsc", -1, -1},
44 			{"vdd", 150000, 100},	/* 3.0 V */
45 			{"vdda", 100000, 100},	/* 1.2 V */
46 			{"vddio", 100000, 100},	/* 1.8 V */
47 		},
48 	},
49 	.bus_clk_names = dsi_6g_bus_clk_names,
50 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
51 };
52 
53 static const char * const dsi_8916_bus_clk_names[] = {
54 	"mdp_core_clk", "iface_clk", "bus_clk",
55 };
56 
57 static const struct msm_dsi_config msm8916_dsi_cfg = {
58 	.io_offset = DSI_6G_REG_SHIFT,
59 	.reg_cfg = {
60 		.num = 3,
61 		.regs = {
62 			{"gdsc", -1, -1},
63 			{"vdda", 100000, 100},	/* 1.2 V */
64 			{"vddio", 100000, 100},	/* 1.8 V */
65 		},
66 	},
67 	.bus_clk_names = dsi_8916_bus_clk_names,
68 	.num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
69 };
70 
71 static const struct msm_dsi_config msm8994_dsi_cfg = {
72 	.io_offset = DSI_6G_REG_SHIFT,
73 	.reg_cfg = {
74 		.num = 7,
75 		.regs = {
76 			{"gdsc", -1, -1},
77 			{"vdda", 100000, 100},	/* 1.25 V */
78 			{"vddio", 100000, 100},	/* 1.8 V */
79 			{"vcca", 10000, 100},	/* 1.0 V */
80 			{"vdd", 100000, 100},	/* 1.8 V */
81 			{"lab_reg", -1, -1},
82 			{"ibb_reg", -1, -1},
83 		},
84 	},
85 	.bus_clk_names = dsi_6g_bus_clk_names,
86 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
87 };
88 
89 static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
90 	{MSM_DSI_VER_MAJOR_V2, MSM_DSI_V2_VER_MINOR_8064, &apq8064_dsi_cfg},
91 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_0,
92 						&msm8974_apq8084_dsi_cfg},
93 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1,
94 						&msm8974_apq8084_dsi_cfg},
95 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1_1,
96 						&msm8974_apq8084_dsi_cfg},
97 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_2,
98 						&msm8974_apq8084_dsi_cfg},
99 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3, &msm8994_dsi_cfg},
100 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3_1, &msm8916_dsi_cfg},
101 };
102 
103 const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
104 {
105 	const struct msm_dsi_cfg_handler *cfg_hnd = NULL;
106 	int i;
107 
108 	for (i = ARRAY_SIZE(dsi_cfg_handlers) - 1; i >= 0; i--) {
109 		if ((dsi_cfg_handlers[i].major == major) &&
110 			(dsi_cfg_handlers[i].minor == minor)) {
111 			cfg_hnd = &dsi_cfg_handlers[i];
112 			break;
113 		}
114 	}
115 
116 	return cfg_hnd;
117 }
118 
119