1 // SPDX-License-Identifier: GPL-2.0-only
3 * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver.
5 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
6 * Donghwa Lee <dh09.lee@samsung.com>
7 * Hyungwon Hwang <human.hwang@samsung.com>
8 * Hoegeun Kwon <hoegeun.kwon@samsung.com>
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>
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>
23 #define S6E3HA2_MIN_BRIGHTNESS 0
24 #define S6E3HA2_MAX_BRIGHTNESS 100
25 #define S6E3HA2_DEFAULT_BRIGHTNESS 80
27 #define S6E3HA2_NUM_GAMMA_STEPS 46
28 #define S6E3HA2_GAMMA_CMD_CNT 35
29 #define S6E3HA2_VINT_STATUS_MAX 10
31 static 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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
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,
218 unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = {
219 0x18, 0x19, 0x1a, 0x1b, 0x1c,
220 0x1d, 0x1e, 0x1f, 0x20, 0x21
228 struct s6e3ha2_panel_desc {
229 const struct drm_display_mode *mode;
230 enum s6e3ha2_type type;
235 struct drm_panel panel;
236 struct backlight_device *bl_dev;
238 struct regulator_bulk_data supplies[2];
239 struct gpio_desc *reset_gpio;
240 struct gpio_desc *enable_gpio;
242 const struct s6e3ha2_panel_desc *desc;
245 static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len)
247 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
249 return mipi_dsi_dcs_write_buffer(dsi, data, len);
252 #define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \
253 static const u8 d[] = { seq }; \
255 ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \
260 #define s6e3ha2_call_write_func(ret, func) do { \
266 static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx)
268 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
272 static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx)
274 s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5);
278 static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx)
280 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
284 static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx)
286 s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5);
290 static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx)
292 s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67);
293 s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09);
297 static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx)
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);
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);
311 s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x14, 0x6d,
312 0x40, 0x80, 0xc0, 0x28, 0x28,
313 0x28, 0x28, 0x39, 0xc5);
318 static int s6e3ha2_aor_control(struct s6e3ha2 *ctx)
320 s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10);
324 static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx)
326 s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a);
330 static int s6e3ha2_acl_off(struct s6e3ha2 *ctx)
332 s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00);
336 static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx)
338 s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40);
342 static int s6e3ha2_test_global(struct s6e3ha2 *ctx)
344 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07);
348 static int s6e3ha2_test(struct s6e3ha2 *ctx)
350 s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19);
354 static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx)
356 s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02,
361 static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx)
363 s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8);
367 static int s6e3ha2_poc_global(struct s6e3ha2 *ctx)
369 s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20);
373 static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx)
375 s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08);
379 static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx)
381 s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51);
385 static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx)
387 s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44);
391 static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx)
393 s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00);
397 static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx)
399 s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09);
403 static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx)
405 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03);
406 ndelay(100); /* need for 100ns delay */
407 s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00);
411 static int s6e3ha2_get_brightness(struct backlight_device *bl_dev)
413 return bl_dev->props.brightness;
416 static int s6e3ha2_set_vint(struct s6e3ha2 *ctx)
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] };
424 return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data));
427 static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness)
429 return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) /
430 S6E3HA2_MAX_BRIGHTNESS;
433 static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness)
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, };
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)));
444 s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
445 bl_dev->props.brightness = brightness;
450 static int s6e3ha2_set_brightness(struct backlight_device *bl_dev)
452 struct s6e3ha2 *ctx = bl_get_data(bl_dev);
453 unsigned int brightness = bl_dev->props.brightness;
456 if (brightness < S6E3HA2_MIN_BRIGHTNESS ||
457 brightness > bl_dev->props.max_brightness) {
458 dev_err(ctx->dev, "Invalid brightness: %u\n", brightness);
462 if (bl_dev->props.power > FB_BLANK_NORMAL)
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));
474 static const struct backlight_ops s6e3ha2_bl_ops = {
475 .get_brightness = s6e3ha2_get_brightness,
476 .update_status = s6e3ha2_set_brightness,
479 static int s6e3ha2_panel_init(struct s6e3ha2 *ctx)
481 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
484 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi));
485 usleep_range(5000, 6000);
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));
497 static int s6e3ha2_power_off(struct s6e3ha2 *ctx)
499 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
502 static int s6e3ha2_disable(struct drm_panel *panel)
504 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
505 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
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));
512 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
517 static int s6e3ha2_unprepare(struct drm_panel *panel)
519 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
521 return s6e3ha2_power_off(ctx);
524 static int s6e3ha2_power_on(struct s6e3ha2 *ctx)
528 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
534 gpiod_set_value(ctx->enable_gpio, 0);
535 usleep_range(5000, 6000);
536 gpiod_set_value(ctx->enable_gpio, 1);
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);
545 static int s6e3ha2_prepare(struct drm_panel *panel)
547 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
550 ret = s6e3ha2_power_on(ctx);
554 ret = s6e3ha2_panel_init(ctx);
558 ctx->bl_dev->props.power = FB_BLANK_NORMAL;
563 s6e3ha2_power_off(ctx);
567 static int s6e3ha2_enable(struct drm_panel *panel)
569 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
570 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
574 s6e3ha2_call_write_func(ret,
575 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK));
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));
585 /* pcd setting off for TB */
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));
590 /* brightness setting */
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));
599 /* elvss temp compensation */
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));
604 s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi));
605 ctx->bl_dev->props.power = FB_BLANK_UNBLANK;
610 static const struct drm_display_mode s6e3ha2_mode = {
613 .hsync_start = 1440 + 1,
614 .hsync_end = 1440 + 1 + 1,
615 .htotal = 1440 + 1 + 1 + 1,
617 .vsync_start = 2560 + 1,
618 .vsync_end = 2560 + 1 + 1,
619 .vtotal = 2560 + 1 + 1 + 15,
624 static const struct s6e3ha2_panel_desc samsung_s6e3ha2 = {
625 .mode = &s6e3ha2_mode,
629 static const struct drm_display_mode s6e3hf2_mode = {
632 .hsync_start = 1600 + 1,
633 .hsync_end = 1600 + 1 + 1,
634 .htotal = 1600 + 1 + 1 + 1,
636 .vsync_start = 2560 + 1,
637 .vsync_end = 2560 + 1 + 1,
638 .vtotal = 2560 + 1 + 1 + 15,
643 static const struct s6e3ha2_panel_desc samsung_s6e3hf2 = {
644 .mode = &s6e3hf2_mode,
648 static int s6e3ha2_get_modes(struct drm_panel *panel,
649 struct drm_connector *connector)
651 struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
652 struct drm_display_mode *mode;
654 mode = drm_mode_duplicate(connector->dev, ctx->desc->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);
662 drm_mode_set_name(mode);
664 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
665 drm_mode_probed_add(connector, mode);
667 connector->display_info.width_mm = 71;
668 connector->display_info.height_mm = 125;
673 static 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,
681 static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
683 struct device *dev = &dsi->dev;
687 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
691 mipi_dsi_set_drvdata(dsi, ctx);
694 ctx->desc = of_device_get_match_data(dev);
697 dsi->format = MIPI_DSI_FMT_RGB888;
698 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
700 ctx->supplies[0].supply = "vdd3";
701 ctx->supplies[1].supply = "vci";
703 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
706 dev_err(dev, "failed to get regulators: %d\n", ret);
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);
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);
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);
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;
735 drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs,
736 DRM_MODE_CONNECTOR_DSI);
738 ret = drm_panel_add(&ctx->panel);
740 goto unregister_backlight;
742 ret = mipi_dsi_attach(dsi);
749 drm_panel_remove(&ctx->panel);
751 unregister_backlight:
752 backlight_device_unregister(ctx->bl_dev);
757 static int s6e3ha2_remove(struct mipi_dsi_device *dsi)
759 struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi);
761 mipi_dsi_detach(dsi);
762 drm_panel_remove(&ctx->panel);
763 backlight_device_unregister(ctx->bl_dev);
768 static const struct of_device_id s6e3ha2_of_match[] = {
769 { .compatible = "samsung,s6e3ha2", .data = &samsung_s6e3ha2 },
770 { .compatible = "samsung,s6e3hf2", .data = &samsung_s6e3hf2 },
773 MODULE_DEVICE_TABLE(of, s6e3ha2_of_match);
775 static struct mipi_dsi_driver s6e3ha2_driver = {
776 .probe = s6e3ha2_probe,
777 .remove = s6e3ha2_remove,
779 .name = "panel-samsung-s6e3ha2",
780 .of_match_table = s6e3ha2_of_match,
783 module_mipi_dsi_driver(s6e3ha2_driver);
785 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
786 MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>");
787 MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>");
788 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver");
789 MODULE_LICENSE("GPL v2");