xref: /openbmc/linux/drivers/gpu/drm/msm/dsi/dsi_cfg.c (revision 09bae3b6)
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", "iface", "bus",
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 	.io_start = { 0x4700000, 0x5800000 },
33 	.num_dsi = 2,
34 };
35 
36 static const char * const dsi_6g_bus_clk_names[] = {
37 	"mdp_core", "iface", "bus", "core_mmss",
38 };
39 
40 static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
41 	.io_offset = DSI_6G_REG_SHIFT,
42 	.reg_cfg = {
43 		.num = 4,
44 		.regs = {
45 			{"gdsc", -1, -1},
46 			{"vdd", 150000, 100},	/* 3.0 V */
47 			{"vdda", 100000, 100},	/* 1.2 V */
48 			{"vddio", 100000, 100},	/* 1.8 V */
49 		},
50 	},
51 	.bus_clk_names = dsi_6g_bus_clk_names,
52 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
53 	.io_start = { 0xfd922800, 0xfd922b00 },
54 	.num_dsi = 2,
55 };
56 
57 static const char * const dsi_8916_bus_clk_names[] = {
58 	"mdp_core", "iface", "bus",
59 };
60 
61 static const struct msm_dsi_config msm8916_dsi_cfg = {
62 	.io_offset = DSI_6G_REG_SHIFT,
63 	.reg_cfg = {
64 		.num = 3,
65 		.regs = {
66 			{"gdsc", -1, -1},
67 			{"vdda", 100000, 100},	/* 1.2 V */
68 			{"vddio", 100000, 100},	/* 1.8 V */
69 		},
70 	},
71 	.bus_clk_names = dsi_8916_bus_clk_names,
72 	.num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
73 	.io_start = { 0x1a98000 },
74 	.num_dsi = 1,
75 };
76 
77 static const struct msm_dsi_config msm8994_dsi_cfg = {
78 	.io_offset = DSI_6G_REG_SHIFT,
79 	.reg_cfg = {
80 		.num = 7,
81 		.regs = {
82 			{"gdsc", -1, -1},
83 			{"vdda", 100000, 100},	/* 1.25 V */
84 			{"vddio", 100000, 100},	/* 1.8 V */
85 			{"vcca", 10000, 100},	/* 1.0 V */
86 			{"vdd", 100000, 100},	/* 1.8 V */
87 			{"lab_reg", -1, -1},
88 			{"ibb_reg", -1, -1},
89 		},
90 	},
91 	.bus_clk_names = dsi_6g_bus_clk_names,
92 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
93 	.io_start = { 0xfd998000, 0xfd9a0000 },
94 	.num_dsi = 2,
95 };
96 
97 /*
98  * TODO: core_mmss_clk fails to enable for some reason, but things work fine
99  * without it too. Figure out why it doesn't enable and uncomment below
100  */
101 static const char * const dsi_8996_bus_clk_names[] = {
102 	"mdp_core", "iface", "bus", /* "core_mmss", */
103 };
104 
105 static const struct msm_dsi_config msm8996_dsi_cfg = {
106 	.io_offset = DSI_6G_REG_SHIFT,
107 	.reg_cfg = {
108 		.num = 2,
109 		.regs = {
110 			{"vdda", 18160, 1 },	/* 1.25 V */
111 			{"vcca", 17000, 32 },	/* 0.925 V */
112 			{"vddio", 100000, 100 },/* 1.8 V */
113 		},
114 	},
115 	.bus_clk_names = dsi_8996_bus_clk_names,
116 	.num_bus_clks = ARRAY_SIZE(dsi_8996_bus_clk_names),
117 	.io_start = { 0x994000, 0x996000 },
118 	.num_dsi = 2,
119 };
120 
121 static const char * const dsi_sdm845_bus_clk_names[] = {
122 	"iface", "bus",
123 };
124 
125 static const struct msm_dsi_config sdm845_dsi_cfg = {
126 	.io_offset = DSI_6G_REG_SHIFT,
127 	.reg_cfg = {
128 		.num = 1,
129 		.regs = {
130 			{"vdda", 21800, 4 },	/* 1.2 V */
131 		},
132 	},
133 	.bus_clk_names = dsi_sdm845_bus_clk_names,
134 	.num_bus_clks = ARRAY_SIZE(dsi_sdm845_bus_clk_names),
135 	.io_start = { 0xae94000, 0xae96000 },
136 	.num_dsi = 2,
137 };
138 
139 const static struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
140 	.link_clk_enable = dsi_link_clk_enable_v2,
141 	.link_clk_disable = dsi_link_clk_disable_v2,
142 	.clk_init_ver = dsi_clk_init_v2,
143 	.tx_buf_alloc = dsi_tx_buf_alloc_v2,
144 	.tx_buf_get = dsi_tx_buf_get_v2,
145 	.tx_buf_put = NULL,
146 	.dma_base_get = dsi_dma_base_get_v2,
147 	.calc_clk_rate = dsi_calc_clk_rate_v2,
148 };
149 
150 const static struct msm_dsi_host_cfg_ops msm_dsi_6g_host_ops = {
151 	.link_clk_enable = dsi_link_clk_enable_6g,
152 	.link_clk_disable = dsi_link_clk_disable_6g,
153 	.clk_init_ver = NULL,
154 	.tx_buf_alloc = dsi_tx_buf_alloc_6g,
155 	.tx_buf_get = dsi_tx_buf_get_6g,
156 	.tx_buf_put = dsi_tx_buf_put_6g,
157 	.dma_base_get = dsi_dma_base_get_6g,
158 	.calc_clk_rate = dsi_calc_clk_rate_6g,
159 };
160 
161 const static struct msm_dsi_host_cfg_ops msm_dsi_6g_v2_host_ops = {
162 	.link_clk_enable = dsi_link_clk_enable_6g,
163 	.link_clk_disable = dsi_link_clk_disable_6g,
164 	.clk_init_ver = dsi_clk_init_6g_v2,
165 	.tx_buf_alloc = dsi_tx_buf_alloc_6g,
166 	.tx_buf_get = dsi_tx_buf_get_6g,
167 	.tx_buf_put = dsi_tx_buf_put_6g,
168 	.dma_base_get = dsi_dma_base_get_6g,
169 	.calc_clk_rate = dsi_calc_clk_rate_6g,
170 };
171 
172 static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
173 	{MSM_DSI_VER_MAJOR_V2, MSM_DSI_V2_VER_MINOR_8064,
174 		&apq8064_dsi_cfg, &msm_dsi_v2_host_ops},
175 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_0,
176 		&msm8974_apq8084_dsi_cfg, &msm_dsi_6g_host_ops},
177 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1,
178 		&msm8974_apq8084_dsi_cfg, &msm_dsi_6g_host_ops},
179 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1_1,
180 		&msm8974_apq8084_dsi_cfg, &msm_dsi_6g_host_ops},
181 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_2,
182 		&msm8974_apq8084_dsi_cfg, &msm_dsi_6g_host_ops},
183 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3,
184 		&msm8994_dsi_cfg, &msm_dsi_6g_host_ops},
185 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3_1,
186 		&msm8916_dsi_cfg, &msm_dsi_6g_host_ops},
187 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_4_1,
188 		&msm8996_dsi_cfg, &msm_dsi_6g_host_ops},
189 	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_2_1,
190 		&sdm845_dsi_cfg, &msm_dsi_6g_v2_host_ops},
191 };
192 
193 const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
194 {
195 	const struct msm_dsi_cfg_handler *cfg_hnd = NULL;
196 	int i;
197 
198 	for (i = ARRAY_SIZE(dsi_cfg_handlers) - 1; i >= 0; i--) {
199 		if ((dsi_cfg_handlers[i].major == major) &&
200 			(dsi_cfg_handlers[i].minor == minor)) {
201 			cfg_hnd = &dsi_cfg_handlers[i];
202 			break;
203 		}
204 	}
205 
206 	return cfg_hnd;
207 }
208 
209