2 * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver.
4 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
5 * Donghwa Lee <dh09.lee@samsung.com>
6 * Hyungwon Hwang <human.hwang@samsung.com>
7 * Hoegeun Kwon <hoegeun.kwon@samsung.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
15 #include <drm/drm_mipi_dsi.h>
16 #include <drm/drm_panel.h>
17 #include <linux/backlight.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/regulator/consumer.h>
21 #define S6E3HA2_MIN_BRIGHTNESS 0
22 #define S6E3HA2_MAX_BRIGHTNESS 100
23 #define S6E3HA2_DEFAULT_BRIGHTNESS 80
25 #define S6E3HA2_NUM_GAMMA_STEPS 46
26 #define S6E3HA2_GAMMA_CMD_CNT 35
27 #define S6E3HA2_VINT_STATUS_MAX 10
29 static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = {
30 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83,
31 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c,
32 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00,
34 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84,
35 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a,
36 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00,
38 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
39 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a,
40 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00,
42 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
43 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a,
44 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00,
46 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85,
47 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b,
48 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00,
50 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
51 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b,
52 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00,
54 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
55 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89,
56 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00,
58 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
59 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c,
60 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
62 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
63 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88,
64 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
66 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
67 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a,
68 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00,
70 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
71 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b,
72 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00,
74 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
75 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c,
76 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00,
78 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
79 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c,
80 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00,
82 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
83 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
84 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00,
86 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
87 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
88 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00,
90 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
91 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b,
92 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
94 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
95 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e,
96 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
98 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
99 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e,
100 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00,
102 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
103 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d,
104 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
106 { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
107 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c,
108 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
110 { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83,
111 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a,
112 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
114 { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83,
115 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a,
116 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
118 { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83,
119 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89,
120 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
122 { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83,
123 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a,
124 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00,
126 { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82,
127 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87,
128 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
130 { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82,
131 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88,
132 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
134 { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83,
135 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89,
136 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
138 { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82,
139 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86,
140 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
142 { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82,
143 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87,
144 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00,
146 { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81,
147 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86,
148 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
150 { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82,
151 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83,
152 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00,
154 { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82,
155 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82,
156 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
158 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
159 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80,
160 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
162 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81,
163 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
164 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
166 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
167 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
168 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
170 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
171 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82,
172 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
174 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
175 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83,
176 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
178 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
179 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83,
180 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
182 { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80,
183 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81,
184 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00,
186 { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81,
187 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83,
188 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00,
190 { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80,
191 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80,
192 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
194 { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80,
195 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d,
196 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
198 { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80,
199 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82,
200 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
202 { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80,
203 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
204 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
206 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
207 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
208 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
210 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
211 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
212 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
216 unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = {
217 0x18, 0x19, 0x1a, 0x1b, 0x1c,
218 0x1d, 0x1e, 0x1f, 0x20, 0x21
223 struct drm_panel panel;
224 struct backlight_device *bl_dev;
226 struct regulator_bulk_data supplies[2];
227 struct gpio_desc *reset_gpio;
228 struct gpio_desc *enable_gpio;
231 static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len)
233 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
235 return mipi_dsi_dcs_write_buffer(dsi, data, len);
238 #define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \
239 static const u8 d[] = { seq }; \
241 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \
246 #define s6e3ha2_call_write_func(ret, func) do { \
252 static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx)
254 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
258 static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx)
260 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5);
264 static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx)
266 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
270 static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx)
272 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5);
276 static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx)
278 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67);
279 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09);
283 static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx)
285 s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c);
286 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39);
287 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0);
288 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20);
289 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, 0x40,
290 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5);
294 static int s6e3ha2_aor_control(struct s6e3ha2 *ctx)
296 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10);
300 static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx)
302 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a);
306 static int s6e3ha2_acl_off(struct s6e3ha2 *ctx)
308 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00);
312 static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx)
314 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40);
318 static int s6e3ha2_test_global(struct s6e3ha2 *ctx)
320 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07);
324 static int s6e3ha2_test(struct s6e3ha2 *ctx)
326 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19);
330 static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx)
332 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02,
337 static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx)
339 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8);
343 static int s6e3ha2_poc_global(struct s6e3ha2 *ctx)
345 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20);
349 static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx)
351 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08);
355 static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx)
357 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51);
361 static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx)
363 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44);
367 static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx)
369 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00);
373 static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx)
375 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09);
379 static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx)
381 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03);
382 ndelay(100); /* need for 100ns delay */
383 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00);
387 static int s6e3ha2_get_brightness(struct backlight_device *bl_dev)
389 return bl_dev->props.brightness;
392 static int s6e3ha2_set_vint(struct s6e3ha2 *ctx)
394 struct backlight_device *bl_dev = ctx->bl_dev;
395 unsigned int brightness = bl_dev->props.brightness;
396 unsigned char data[] = { 0xf4, 0x8b,
397 vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) /
398 S6E3HA2_MAX_BRIGHTNESS] };
400 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data));
403 static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness)
405 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) /
406 S6E3HA2_MAX_BRIGHTNESS;
409 static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness)
411 struct backlight_device *bl_dev = ctx->bl_dev;
412 unsigned int index = s6e3ha2_get_brightness_index(brightness);
413 u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, };
416 memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
417 s6e3ha2_call_write_func(ret,
418 s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)));
420 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
421 bl_dev->props.brightness = brightness;
426 static int s6e3ha2_set_brightness(struct backlight_device *bl_dev)
428 struct s6e3ha2 *ctx = bl_get_data(bl_dev);
429 unsigned int brightness = bl_dev->props.brightness;
432 if (brightness < S6E3HA2_MIN_BRIGHTNESS ||
433 brightness > bl_dev->props.max_brightness) {
434 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness);
438 if (bl_dev->props.power > FB_BLANK_NORMAL)
441 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
442 s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness));
443 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
444 s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx));
445 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
450 static const struct backlight_ops s6e3ha2_bl_ops = {
451 .get_brightness = s6e3ha2_get_brightness,
452 .update_status = s6e3ha2_set_brightness,
455 static int s6e3ha2_panel_init(struct s6e3ha2 *ctx)
457 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
460 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi));
461 usleep_range(5000, 6000);
463 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
464 s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx));
465 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
466 s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx));
467 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
468 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
473 static int s6e3ha2_power_off(struct s6e3ha2 *ctx)
475 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
478 static int s6e3ha2_disable(struct drm_panel *panel)
480 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
481 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
484 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi));
485 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi));
488 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
493 static int s6e3ha2_unprepare(struct drm_panel *panel)
495 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
497 return s6e3ha2_power_off(ctx);
500 static int s6e3ha2_power_on(struct s6e3ha2 *ctx)
504 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
510 gpiod_set_value(ctx->enable_gpio, 0);
511 usleep_range(5000, 6000);
512 gpiod_set_value(ctx->enable_gpio, 1);
514 gpiod_set_value(ctx->reset_gpio, 1);
515 usleep_range(5000, 6000);
516 gpiod_set_value(ctx->reset_gpio, 0);
517 usleep_range(5000, 6000);
521 static int s6e3ha2_prepare(struct drm_panel *panel)
523 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
526 ret = s6e3ha2_power_on(ctx);
530 ret = s6e3ha2_panel_init(ctx);
534 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
539 s6e3ha2_power_off(ctx);
543 static int s6e3ha2_enable(struct drm_panel *panel)
545 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
546 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
550 s6e3ha2_call_write_func(ret,
551 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK));
553 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
554 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
555 s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx));
556 s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx));
557 s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx));
558 s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx));
559 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
561 /* pcd setting off for TB */
562 s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx));
563 s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx));
564 s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx));
566 /* brightness setting */
567 s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev));
568 s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
569 s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx));
570 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
571 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx));
572 s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx));
573 s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx));
575 /* elvss temp compensation */
576 s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx));
577 s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx));
578 s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
580 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi));
581 ctx->bl_dev->props.power = FB_BLANK_UNBLANK;
586 static const struct drm_display_mode default_mode = {
589 .hsync_start = 1440 + 1,
590 .hsync_end = 1440 + 1 + 1,
591 .htotal = 1440 + 1 + 1 + 1,
593 .vsync_start = 2560 + 1,
594 .vsync_end = 2560 + 1 + 1,
595 .vtotal = 2560 + 1 + 1 + 15,
600 static int s6e3ha2_get_modes(struct drm_panel *panel)
602 struct drm_connector *connector = panel->connector;
603 struct drm_display_mode *mode;
605 mode = drm_mode_duplicate(panel->drm, &default_mode);
607 DRM_ERROR("failed to add mode %ux%ux@%u\n",
608 default_mode.hdisplay, default_mode.vdisplay,
609 default_mode.vrefresh);
613 drm_mode_set_name(mode);
615 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
616 drm_mode_probed_add(connector, mode);
618 connector->display_info.width_mm = 71;
619 connector->display_info.height_mm = 125;
624 static const struct drm_panel_funcs s6e3ha2_drm_funcs = {
625 .disable = s6e3ha2_disable,
626 .unprepare = s6e3ha2_unprepare,
627 .prepare = s6e3ha2_prepare,
628 .enable = s6e3ha2_enable,
629 .get_modes = s6e3ha2_get_modes,
632 static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
634 struct device *dev = &dsi->dev;
638 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
642 mipi_dsi_set_drvdata(dsi, ctx);
647 dsi->format = MIPI_DSI_FMT_RGB888;
648 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
650 ctx->supplies[0].supply = "vdd3";
651 ctx->supplies[1].supply = "vci";
653 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
656 dev_err(dev, "failed to get regulators: %d\n", ret);
660 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
661 if (IS_ERR(ctx->reset_gpio)) {
662 dev_err(dev, "cannot get reset-gpios %ld\n",
663 PTR_ERR(ctx->reset_gpio));
664 return PTR_ERR(ctx->reset_gpio);
667 ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
668 if (IS_ERR(ctx->enable_gpio)) {
669 dev_err(dev, "cannot get enable-gpios %ld\n",
670 PTR_ERR(ctx->enable_gpio));
671 return PTR_ERR(ctx->enable_gpio);
674 ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx,
675 &s6e3ha2_bl_ops, NULL);
676 if (IS_ERR(ctx->bl_dev)) {
677 dev_err(dev, "failed to register backlight device\n");
678 return PTR_ERR(ctx->bl_dev);
681 ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS;
682 ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;
683 ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
685 drm_panel_init(&ctx->panel);
686 ctx->panel.dev = dev;
687 ctx->panel.funcs = &s6e3ha2_drm_funcs;
689 ret = drm_panel_add(&ctx->panel);
691 goto unregister_backlight;
693 ret = mipi_dsi_attach(dsi);
700 drm_panel_remove(&ctx->panel);
702 unregister_backlight:
703 backlight_device_unregister(ctx->bl_dev);
708 static int s6e3ha2_remove(struct mipi_dsi_device *dsi)
710 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi);
712 mipi_dsi_detach(dsi);
713 drm_panel_remove(&ctx->panel);
714 backlight_device_unregister(ctx->bl_dev);
719 static const struct of_device_id s6e3ha2_of_match[] = {
720 { .compatible = "samsung,s6e3ha2" },
723 MODULE_DEVICE_TABLE(of, s6e3ha2_of_match);
725 static struct mipi_dsi_driver s6e3ha2_driver = {
726 .probe = s6e3ha2_probe,
727 .remove = s6e3ha2_remove,
729 .name = "panel-samsung-s6e3ha2",
730 .of_match_table = s6e3ha2_of_match,
733 module_mipi_dsi_driver(s6e3ha2_driver);
735 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
736 MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>");
737 MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>");
738 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver");
739 MODULE_LICENSE("GPL v2");