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11#include <linux/backlight.h>
12#include <linux/delay.h>
13#include <linux/gpio/consumer.h>
14#include <linux/module.h>
15#include <linux/of_device.h>
16#include <linux/regulator/consumer.h>
17
18#include <drm/drm_mipi_dsi.h>
19#include <drm/drm_modes.h>
20#include <drm/drm_panel.h>
21#include <drm/drm_print.h>
22
23#define S6E3HA2_MIN_BRIGHTNESS 0
24#define S6E3HA2_MAX_BRIGHTNESS 100
25#define S6E3HA2_DEFAULT_BRIGHTNESS 80
26
27#define S6E3HA2_NUM_GAMMA_STEPS 46
28#define S6E3HA2_GAMMA_CMD_CNT 35
29#define S6E3HA2_VINT_STATUS_MAX 10
30
31static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = {
32 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83,
33 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c,
34 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00,
35 0x00, 0x00 },
36 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84,
37 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a,
38 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00,
39 0x00, 0x00 },
40 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
41 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a,
42 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00,
43 0x00, 0x00 },
44 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
45 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a,
46 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00,
47 0x00, 0x00 },
48 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85,
49 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b,
50 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00,
51 0x00, 0x00 },
52 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
53 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b,
54 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00,
55 0x00, 0x00 },
56 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
57 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89,
58 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00,
59 0x00, 0x00 },
60 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
61 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c,
62 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
63 0x00, 0x00 },
64 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
65 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88,
66 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
67 0x00, 0x00 },
68 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
69 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a,
70 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00,
71 0x00, 0x00 },
72 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
73 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b,
74 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00,
75 0x00, 0x00 },
76 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
77 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c,
78 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00,
79 0x00, 0x00 },
80 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
81 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c,
82 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00,
83 0x00, 0x00 },
84 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
85 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
86 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00,
87 0x00, 0x00 },
88 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
89 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
90 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00,
91 0x00, 0x00 },
92 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
93 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b,
94 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
95 0x00, 0x00 },
96 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
97 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e,
98 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
99 0x00, 0x00 },
100 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
101 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e,
102 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00,
103 0x00, 0x00 },
104 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
105 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d,
106 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
107 0x00, 0x00 },
108 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
109 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c,
110 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
111 0x00, 0x00 },
112 { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83,
113 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a,
114 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
115 0x00, 0x00 },
116 { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83,
117 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a,
118 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
119 0x00, 0x00 },
120 { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83,
121 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89,
122 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
123 0x00, 0x00 },
124 { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83,
125 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a,
126 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00,
127 0x00, 0x00 },
128 { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82,
129 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87,
130 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
131 0x00, 0x00 },
132 { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82,
133 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88,
134 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
135 0x00, 0x00 },
136 { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83,
137 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89,
138 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
139 0x00, 0x00 },
140 { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82,
141 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86,
142 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
143 0x00, 0x00 },
144 { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82,
145 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87,
146 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00,
147 0x00, 0x00 },
148 { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81,
149 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86,
150 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
151 0x00, 0x00 },
152 { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82,
153 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83,
154 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00,
155 0x00, 0x00 },
156 { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82,
157 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82,
158 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
159 0x00, 0x00 },
160 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
161 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80,
162 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
163 0x00, 0x00 },
164 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81,
165 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
166 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
167 0x00, 0x00 },
168 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
169 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
170 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
171 0x00, 0x00 },
172 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
173 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82,
174 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
175 0x00, 0x00 },
176 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
177 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83,
178 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
179 0x00, 0x00 },
180 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
181 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83,
182 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
183 0x00, 0x00 },
184 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80,
185 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81,
186 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00,
187 0x00, 0x00 },
188 { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81,
189 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83,
190 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00,
191 0x00, 0x00 },
192 { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80,
193 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80,
194 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
195 0x00, 0x00 },
196 { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80,
197 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d,
198 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
199 0x00, 0x00 },
200 { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80,
201 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82,
202 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
203 0x00, 0x00 },
204 { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80,
205 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
206 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
207 0x00, 0x00 },
208 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
209 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
210 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
211 0x00, 0x00 },
212 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
213 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
214 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
215 0x00, 0x00 }
216};
217
218unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = {
219 0x18, 0x19, 0x1a, 0x1b, 0x1c,
220 0x1d, 0x1e, 0x1f, 0x20, 0x21
221};
222
223enum s6e3ha2_type {
224 HA2_TYPE,
225 HF2_TYPE,
226};
227
228struct s6e3ha2_panel_desc {
229 const struct drm_display_mode *mode;
230 enum s6e3ha2_type type;
231};
232
233struct s6e3ha2 {
234 struct device *dev;
235 struct drm_panel panel;
236 struct backlight_device *bl_dev;
237
238 struct regulator_bulk_data supplies[2];
239 struct gpio_desc *reset_gpio;
240 struct gpio_desc *enable_gpio;
241
242 const struct s6e3ha2_panel_desc *desc;
243};
244
245static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len)
246{
247 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
248
249 return mipi_dsi_dcs_write_buffer(dsi, data, len);
250}
251
252#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \
253 static const u8 d[] = { seq }; \
254 int ret; \
255 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \
256 if (ret < 0) \
257 return ret; \
258} while (0)
259
260#define s6e3ha2_call_write_func(ret, func) do { \
261 ret = (func); \
262 if (ret < 0) \
263 return ret; \
264} while (0)
265
266static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx)
267{
268 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
269 return 0;
270}
271
272static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx)
273{
274 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5);
275 return 0;
276}
277
278static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx)
279{
280 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
281 return 0;
282}
283
284static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx)
285{
286 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5);
287 return 0;
288}
289
290static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx)
291{
292 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67);
293 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09);
294 return 0;
295}
296
297static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx)
298{
299 s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c);
300 if (ctx->desc->type == HF2_TYPE)
301 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67, 0x40, 0xc5);
302 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39);
303 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0);
304 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20);
305
306 if (ctx->desc->type == HA2_TYPE)
307 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62,
308 0x40, 0x80, 0xc0, 0x28, 0x28,
309 0x28, 0x28, 0x39, 0xc5);
310 else
311 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x14, 0x6d,
312 0x40, 0x80, 0xc0, 0x28, 0x28,
313 0x28, 0x28, 0x39, 0xc5);
314
315 return 0;
316}
317
318static int s6e3ha2_aor_control(struct s6e3ha2 *ctx)
319{
320 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10);
321 return 0;
322}
323
324static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx)
325{
326 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a);
327 return 0;
328}
329
330static int s6e3ha2_acl_off(struct s6e3ha2 *ctx)
331{
332 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00);
333 return 0;
334}
335
336static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx)
337{
338 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40);
339 return 0;
340}
341
342static int s6e3ha2_test_global(struct s6e3ha2 *ctx)
343{
344 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07);
345 return 0;
346}
347
348static int s6e3ha2_test(struct s6e3ha2 *ctx)
349{
350 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19);
351 return 0;
352}
353
354static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx)
355{
356 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02,
357 0x16, 0x02, 0x16);
358 return 0;
359}
360
361static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx)
362{
363 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8);
364 return 0;
365}
366
367static int s6e3ha2_poc_global(struct s6e3ha2 *ctx)
368{
369 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20);
370 return 0;
371}
372
373static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx)
374{
375 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08);
376 return 0;
377}
378
379static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx)
380{
381 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51);
382 return 0;
383}
384
385static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx)
386{
387 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44);
388 return 0;
389}
390
391static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx)
392{
393 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00);
394 return 0;
395}
396
397static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx)
398{
399 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09);
400 return 0;
401}
402
403static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx)
404{
405 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03);
406 ndelay(100);
407 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00);
408 return 0;
409}
410
411static int s6e3ha2_get_brightness(struct backlight_device *bl_dev)
412{
413 return bl_dev->props.brightness;
414}
415
416static int s6e3ha2_set_vint(struct s6e3ha2 *ctx)
417{
418 struct backlight_device *bl_dev = ctx->bl_dev;
419 unsigned int brightness = bl_dev->props.brightness;
420 unsigned char data[] = { 0xf4, 0x8b,
421 vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) /
422 S6E3HA2_MAX_BRIGHTNESS] };
423
424 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data));
425}
426
427static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness)
428{
429 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) /
430 S6E3HA2_MAX_BRIGHTNESS;
431}
432
433static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness)
434{
435 struct backlight_device *bl_dev = ctx->bl_dev;
436 unsigned int index = s6e3ha2_get_brightness_index(brightness);
437 u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, };
438 int ret;
439
440 memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
441 s6e3ha2_call_write_func(ret,
442 s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)));
443
444 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
445 bl_dev->props.brightness = brightness;
446
447 return 0;
448}
449
450static int s6e3ha2_set_brightness(struct backlight_device *bl_dev)
451{
452 struct s6e3ha2 *ctx = bl_get_data(bl_dev);
453 unsigned int brightness = bl_dev->props.brightness;
454 int ret;
455
456 if (brightness < S6E3HA2_MIN_BRIGHTNESS ||
457 brightness > bl_dev->props.max_brightness) {
458 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness);
459 return -EINVAL;
460 }
461
462 if (bl_dev->props.power > FB_BLANK_NORMAL)
463 return -EPERM;
464
465 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
466 s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness));
467 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
468 s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx));
469 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
470
471 return 0;
472}
473
474static const struct backlight_ops s6e3ha2_bl_ops = {
475 .get_brightness = s6e3ha2_get_brightness,
476 .update_status = s6e3ha2_set_brightness,
477};
478
479static int s6e3ha2_panel_init(struct s6e3ha2 *ctx)
480{
481 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
482 int ret;
483
484 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi));
485 usleep_range(5000, 6000);
486
487 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
488 s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx));
489 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
490 s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx));
491 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
492 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
493
494 return 0;
495}
496
497static int s6e3ha2_power_off(struct s6e3ha2 *ctx)
498{
499 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
500}
501
502static int s6e3ha2_disable(struct drm_panel *panel)
503{
504 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
505 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
506 int ret;
507
508 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi));
509 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi));
510
511 msleep(40);
512 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
513
514 return 0;
515}
516
517static int s6e3ha2_unprepare(struct drm_panel *panel)
518{
519 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
520
521 return s6e3ha2_power_off(ctx);
522}
523
524static int s6e3ha2_power_on(struct s6e3ha2 *ctx)
525{
526 int ret;
527
528 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
529 if (ret < 0)
530 return ret;
531
532 msleep(120);
533
534 gpiod_set_value(ctx->enable_gpio, 0);
535 usleep_range(5000, 6000);
536 gpiod_set_value(ctx->enable_gpio, 1);
537
538 gpiod_set_value(ctx->reset_gpio, 1);
539 usleep_range(5000, 6000);
540 gpiod_set_value(ctx->reset_gpio, 0);
541 usleep_range(5000, 6000);
542
543 return 0;
544}
545static int s6e3ha2_prepare(struct drm_panel *panel)
546{
547 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
548 int ret;
549
550 ret = s6e3ha2_power_on(ctx);
551 if (ret < 0)
552 return ret;
553
554 ret = s6e3ha2_panel_init(ctx);
555 if (ret < 0)
556 goto err;
557
558 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
559
560 return 0;
561
562err:
563 s6e3ha2_power_off(ctx);
564 return ret;
565}
566
567static int s6e3ha2_enable(struct drm_panel *panel)
568{
569 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
570 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
571 int ret;
572
573
574 s6e3ha2_call_write_func(ret,
575 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK));
576
577 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
578 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
579 s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx));
580 s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx));
581 s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx));
582 s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx));
583 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
584
585
586 s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx));
587 s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx));
588 s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx));
589
590
591 s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev));
592 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
593 s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx));
594 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
595 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx));
596 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx));
597 s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx));
598
599
600 s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx));
601 s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx));
602 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
603
604 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi));
605 ctx->bl_dev->props.power = FB_BLANK_UNBLANK;
606
607 return 0;
608}
609
610static const struct drm_display_mode s6e3ha2_mode = {
611 .clock = 222372,
612 .hdisplay = 1440,
613 .hsync_start = 1440 + 1,
614 .hsync_end = 1440 + 1 + 1,
615 .htotal = 1440 + 1 + 1 + 1,
616 .vdisplay = 2560,
617 .vsync_start = 2560 + 1,
618 .vsync_end = 2560 + 1 + 1,
619 .vtotal = 2560 + 1 + 1 + 15,
620 .vrefresh = 60,
621 .flags = 0,
622};
623
624static const struct s6e3ha2_panel_desc samsung_s6e3ha2 = {
625 .mode = &s6e3ha2_mode,
626 .type = HA2_TYPE,
627};
628
629static const struct drm_display_mode s6e3hf2_mode = {
630 .clock = 247856,
631 .hdisplay = 1600,
632 .hsync_start = 1600 + 1,
633 .hsync_end = 1600 + 1 + 1,
634 .htotal = 1600 + 1 + 1 + 1,
635 .vdisplay = 2560,
636 .vsync_start = 2560 + 1,
637 .vsync_end = 2560 + 1 + 1,
638 .vtotal = 2560 + 1 + 1 + 15,
639 .vrefresh = 60,
640 .flags = 0,
641};
642
643static const struct s6e3ha2_panel_desc samsung_s6e3hf2 = {
644 .mode = &s6e3hf2_mode,
645 .type = HF2_TYPE,
646};
647
648static int s6e3ha2_get_modes(struct drm_panel *panel)
649{
650 struct drm_connector *connector = panel->connector;
651 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
652 struct drm_display_mode *mode;
653
654 mode = drm_mode_duplicate(panel->drm, ctx->desc->mode);
655 if (!mode) {
656 DRM_ERROR("failed to add mode %ux%ux@%u\n",
657 ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay,
658 ctx->desc->mode->vrefresh);
659 return -ENOMEM;
660 }
661
662 drm_mode_set_name(mode);
663
664 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
665 drm_mode_probed_add(connector, mode);
666
667 connector->display_info.width_mm = 71;
668 connector->display_info.height_mm = 125;
669
670 return 1;
671}
672
673static const struct drm_panel_funcs s6e3ha2_drm_funcs = {
674 .disable = s6e3ha2_disable,
675 .unprepare = s6e3ha2_unprepare,
676 .prepare = s6e3ha2_prepare,
677 .enable = s6e3ha2_enable,
678 .get_modes = s6e3ha2_get_modes,
679};
680
681static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
682{
683 struct device *dev = &dsi->dev;
684 struct s6e3ha2 *ctx;
685 int ret;
686
687 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
688 if (!ctx)
689 return -ENOMEM;
690
691 mipi_dsi_set_drvdata(dsi, ctx);
692
693 ctx->dev = dev;
694 ctx->desc = of_device_get_match_data(dev);
695
696 dsi->lanes = 4;
697 dsi->format = MIPI_DSI_FMT_RGB888;
698 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
699
700 ctx->supplies[0].supply = "vdd3";
701 ctx->supplies[1].supply = "vci";
702
703 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
704 ctx->supplies);
705 if (ret < 0) {
706 dev_err(dev, "failed to get regulators: %d\n", ret);
707 return ret;
708 }
709
710 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
711 if (IS_ERR(ctx->reset_gpio)) {
712 dev_err(dev, "cannot get reset-gpios %ld\n",
713 PTR_ERR(ctx->reset_gpio));
714 return PTR_ERR(ctx->reset_gpio);
715 }
716
717 ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
718 if (IS_ERR(ctx->enable_gpio)) {
719 dev_err(dev, "cannot get enable-gpios %ld\n",
720 PTR_ERR(ctx->enable_gpio));
721 return PTR_ERR(ctx->enable_gpio);
722 }
723
724 ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx,
725 &s6e3ha2_bl_ops, NULL);
726 if (IS_ERR(ctx->bl_dev)) {
727 dev_err(dev, "failed to register backlight device\n");
728 return PTR_ERR(ctx->bl_dev);
729 }
730
731 ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS;
732 ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;
733 ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
734
735 drm_panel_init(&ctx->panel);
736 ctx->panel.dev = dev;
737 ctx->panel.funcs = &s6e3ha2_drm_funcs;
738
739 ret = drm_panel_add(&ctx->panel);
740 if (ret < 0)
741 goto unregister_backlight;
742
743 ret = mipi_dsi_attach(dsi);
744 if (ret < 0)
745 goto remove_panel;
746
747 return ret;
748
749remove_panel:
750 drm_panel_remove(&ctx->panel);
751
752unregister_backlight:
753 backlight_device_unregister(ctx->bl_dev);
754
755 return ret;
756}
757
758static int s6e3ha2_remove(struct mipi_dsi_device *dsi)
759{
760 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi);
761
762 mipi_dsi_detach(dsi);
763 drm_panel_remove(&ctx->panel);
764 backlight_device_unregister(ctx->bl_dev);
765
766 return 0;
767}
768
769static const struct of_device_id s6e3ha2_of_match[] = {
770 { .compatible = "samsung,s6e3ha2", .data = &samsung_s6e3ha2 },
771 { .compatible = "samsung,s6e3hf2", .data = &samsung_s6e3hf2 },
772 { }
773};
774MODULE_DEVICE_TABLE(of, s6e3ha2_of_match);
775
776static struct mipi_dsi_driver s6e3ha2_driver = {
777 .probe = s6e3ha2_probe,
778 .remove = s6e3ha2_remove,
779 .driver = {
780 .name = "panel-samsung-s6e3ha2",
781 .of_match_table = s6e3ha2_of_match,
782 },
783};
784module_mipi_dsi_driver(s6e3ha2_driver);
785
786MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
787MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>");
788MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>");
789MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver");
790MODULE_LICENSE("GPL v2");
791
