tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2021, Linaro Limited
4 *
5 * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
6 * Copyright (c) 2013, The Linux Foundation. All rights reserved.
7 */
8
9#include <linux/backlight.h>
10#include <linux/delay.h>
11#include <linux/gpio/consumer.h>
12#include <linux/module.h>
13#include <linux/of.h>
14#include <linux/regulator/consumer.h>
15
16#include <drm/drm_mipi_dsi.h>
17#include <drm/drm_modes.h>
18#include <drm/drm_panel.h>
19
20struct truly_nt35521 {
21 struct drm_panel panel;
22 struct mipi_dsi_device *dsi;
23 struct regulator_bulk_data supplies[2];
24 struct gpio_desc *reset_gpio;
25 struct gpio_desc *blen_gpio;
26};
27
28static inline
29struct truly_nt35521 *to_truly_nt35521(struct drm_panel *panel)
30{
31 return container_of(panel, struct truly_nt35521, panel);
32}
33
34static void truly_nt35521_reset(struct truly_nt35521 *ctx)
35{
36 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
37 usleep_range(1000, 2000);
38 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
39 usleep_range(10000, 11000);
40 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
41 msleep(150);
42}
43
44static int truly_nt35521_on(struct truly_nt35521 *ctx)
45{
46 struct mipi_dsi_device *dsi = ctx->dsi;
47 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
48
49 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
50
51 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
52 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xff, 0xaa, 0x55, 0xa5, 0x80);
53 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x11, 0x00);
54 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf7, 0x20, 0x00);
55 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x01);
56 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x21);
57 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x01, 0xa0, 0x10, 0x08, 0x01);
58 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8, 0x01, 0x02, 0x0c, 0x02);
59 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x11, 0x11);
60 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x00, 0x00);
61 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6, 0x02);
62 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x01);
63 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x09, 0x09);
64 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x09, 0x09);
65 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x8c, 0x00);
66 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x8c, 0x00);
67 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xca, 0x00);
68 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc0, 0x04);
69 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbe, 0xb5);
70 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x35, 0x35);
71 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4, 0x25, 0x25);
72 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9, 0x43, 0x43);
73 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba, 0x24, 0x24);
74 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x02);
75 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xee, 0x03);
76 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0,
77 0x00, 0xb2, 0x00, 0xb3, 0x00, 0xb6, 0x00, 0xc3,
78 0x00, 0xce, 0x00, 0xe1, 0x00, 0xf3, 0x01, 0x11);
79 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1,
80 0x01, 0x2e, 0x01, 0x5c, 0x01, 0x82, 0x01, 0xc3,
81 0x01, 0xfe, 0x02, 0x00, 0x02, 0x37, 0x02, 0x77);
82 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb2,
83 0x02, 0xa1, 0x02, 0xd7, 0x02, 0xfe, 0x03, 0x2c,
84 0x03, 0x4b, 0x03, 0x63, 0x03, 0x8f, 0x03, 0x90);
85 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x03, 0x96, 0x03, 0x98);
86 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4,
87 0x00, 0x81, 0x00, 0x8b, 0x00, 0x9c, 0x00, 0xa9,
88 0x00, 0xb5, 0x00, 0xcb, 0x00, 0xdf, 0x01, 0x02);
89 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb5,
90 0x01, 0x1f, 0x01, 0x51, 0x01, 0x7a, 0x01, 0xbf,
91 0x01, 0xfa, 0x01, 0xfc, 0x02, 0x34, 0x02, 0x76);
92 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6,
93 0x02, 0x9f, 0x02, 0xd7, 0x02, 0xfc, 0x03, 0x2c,
94 0x03, 0x4a, 0x03, 0x63, 0x03, 0x8f, 0x03, 0xa2);
95 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb7, 0x03, 0xb8, 0x03, 0xba);
96 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8,
97 0x00, 0x01, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x2a,
98 0x00, 0x41, 0x00, 0x67, 0x00, 0x87, 0x00, 0xb9);
99 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9,
100 0x00, 0xe2, 0x01, 0x22, 0x01, 0x54, 0x01, 0xa3,
101 0x01, 0xe6, 0x01, 0xe7, 0x02, 0x24, 0x02, 0x67);
102 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba,
103 0x02, 0x93, 0x02, 0xcd, 0x02, 0xf6, 0x03, 0x31,
104 0x03, 0x6c, 0x03, 0xe9, 0x03, 0xef, 0x03, 0xf4);
105 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x03, 0xf6, 0x03, 0xf7);
106 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x03);
107 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x22, 0x00);
108 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x22, 0x00);
109 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb2, 0x05, 0x00, 0x60, 0x00, 0x00);
110 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x05, 0x00, 0x60, 0x00, 0x00);
111 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4, 0x05, 0x00, 0x60, 0x00, 0x00);
112 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb5, 0x05, 0x00, 0x60, 0x00, 0x00);
113 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba, 0x53, 0x00, 0x60, 0x00, 0x00);
114 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x53, 0x00, 0x60, 0x00, 0x00);
115 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x53, 0x00, 0x60, 0x00, 0x00);
116 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x53, 0x00, 0x60, 0x00, 0x00);
117 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc0, 0x00, 0x34, 0x00, 0x00);
118 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc1, 0x00, 0x00, 0x34, 0x00);
119 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc2, 0x00, 0x00, 0x34, 0x00);
120 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc3, 0x00, 0x00, 0x34, 0x00);
121 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc4, 0x60);
122 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc5, 0xc0);
123 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc6, 0x00);
124 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc7, 0x00);
125 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x05);
126 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x17, 0x06);
127 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x17, 0x06);
128 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb2, 0x17, 0x06);
129 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x17, 0x06);
130 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4, 0x17, 0x06);
131 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb5, 0x17, 0x06);
132 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6, 0x17, 0x06);
133 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb7, 0x17, 0x06);
134 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8, 0x00);
135 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9, 0x00, 0x03);
136 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba, 0x00, 0x00);
137 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x02, 0x03);
138 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x02, 0x03);
139 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x03, 0x03, 0x00, 0x03, 0x03);
140 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc0, 0x0b);
141 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc1, 0x09);
142 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc2, 0xa6);
143 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc3, 0x05);
144 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc4, 0x00);
145 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc5, 0x02);
146 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc6, 0x22);
147 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc7, 0x03);
148 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc8, 0x07, 0x20);
149 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc9, 0x03, 0x20);
150 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xca, 0x01, 0x60);
151 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcb, 0x01, 0x60);
152 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcc, 0x00, 0x00, 0x02);
153 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcd, 0x00, 0x00, 0x02);
154 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xce, 0x00, 0x00, 0x02);
155 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcf, 0x00, 0x00, 0x02);
156 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd1, 0x00, 0x05, 0x01, 0x07, 0x10);
157 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd2, 0x10, 0x05, 0x05, 0x03, 0x10);
158 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd3, 0x20, 0x00, 0x43, 0x07, 0x10);
159 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd4, 0x30, 0x00, 0x43, 0x07, 0x10);
160 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd0,
161 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
162 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd5,
163 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
164 0x00, 0x00, 0x00);
165 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6,
166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
167 0x00, 0x00, 0x00);
168 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd7,
169 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
170 0x00, 0x00, 0x00);
171 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00);
172 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe5, 0x06);
173 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe6, 0x06);
174 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe7, 0x00);
175 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe8, 0x06);
176 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe9, 0x06);
177 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xea, 0x06);
178 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xeb, 0x00);
179 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xec, 0x00);
180 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xed, 0x30);
181 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x06);
182 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x31, 0x31);
183 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x31, 0x31);
184 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb2, 0x2d, 0x2e);
185 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x31, 0x34);
186 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb4, 0x29, 0x2a);
187 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb5, 0x12, 0x10);
188 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb6, 0x18, 0x16);
189 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb7, 0x00, 0x02);
190 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8, 0x08, 0x31);
191 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9, 0x31, 0x31);
192 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba, 0x31, 0x31);
193 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbb, 0x31, 0x08);
194 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbc, 0x03, 0x01);
195 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x17, 0x19);
196 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbe, 0x11, 0x13);
197 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbf, 0x2a, 0x29);
198 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc0, 0x34, 0x31);
199 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc1, 0x2e, 0x2d);
200 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc2, 0x31, 0x31);
201 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc3, 0x31, 0x31);
202 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc4, 0x31, 0x31);
203 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc5, 0x31, 0x31);
204 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc6, 0x2e, 0x2d);
205 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc7, 0x31, 0x34);
206 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc8, 0x29, 0x2a);
207 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc9, 0x17, 0x19);
208 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xca, 0x11, 0x13);
209 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcb, 0x03, 0x01);
210 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcc, 0x08, 0x31);
211 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcd, 0x31, 0x31);
212 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xce, 0x31, 0x31);
213 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xcf, 0x31, 0x08);
214 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd0, 0x00, 0x02);
215 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd1, 0x12, 0x10);
216 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd2, 0x18, 0x16);
217 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd3, 0x2a, 0x29);
218 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd4, 0x34, 0x31);
219 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd5, 0x2d, 0x2e);
220 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6, 0x31, 0x31);
221 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd7, 0x31, 0x31);
222 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe5, 0x31, 0x31);
223 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe6, 0x31, 0x31);
224 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00);
225 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd9, 0x00, 0x00, 0x00, 0x00, 0x00);
226 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xe7, 0x00);
227 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x02);
228 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf7, 0x47);
229 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x0a);
230 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf7, 0x02);
231 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x17);
232 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf4, 0x60);
233 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x01);
234 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf9, 0x46);
235 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x6f, 0x11);
236 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf3, 0x01);
237 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x35, 0x00);
238 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
239 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd9, 0x02, 0x03, 0x00);
240 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x00, 0x00);
241 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, 0x00);
242 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb1, 0x6c, 0x21);
243 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf0, 0x55, 0xaa, 0x52, 0x00, 0x00);
244 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x35, 0x00);
245
246 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
247 mipi_dsi_msleep(&dsi_ctx, 120);
248 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
249
250 usleep_range(1000, 2000);
251
252 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x53, 0x24);
253
254 return dsi_ctx.accum_err;
255}
256
257static int truly_nt35521_off(struct truly_nt35521 *ctx)
258{
259 struct mipi_dsi_device *dsi = ctx->dsi;
260 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
261
262 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
263
264 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
265 mipi_dsi_msleep(&dsi_ctx, 50);
266 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
267 mipi_dsi_msleep(&dsi_ctx, 150);
268
269 return dsi_ctx.accum_err;
270}
271
272static int truly_nt35521_prepare(struct drm_panel *panel)
273{
274 struct truly_nt35521 *ctx = to_truly_nt35521(panel);
275 struct device *dev = &ctx->dsi->dev;
276 int ret;
277
278 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
279 if (ret < 0) {
280 dev_err(dev, "Failed to enable regulators: %d\n", ret);
281 return ret;
282 }
283
284 truly_nt35521_reset(ctx);
285
286 ret = truly_nt35521_on(ctx);
287 if (ret < 0) {
288 dev_err(dev, "Failed to initialize panel: %d\n", ret);
289 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
290 return ret;
291 }
292
293 return 0;
294}
295
296static int truly_nt35521_unprepare(struct drm_panel *panel)
297{
298 struct truly_nt35521 *ctx = to_truly_nt35521(panel);
299 struct device *dev = &ctx->dsi->dev;
300 int ret;
301
302 ret = truly_nt35521_off(ctx);
303 if (ret < 0)
304 dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
305
306 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
307 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
308 ctx->supplies);
309
310 return 0;
311}
312
313static int truly_nt35521_enable(struct drm_panel *panel)
314{
315 struct truly_nt35521 *ctx = to_truly_nt35521(panel);
316
317 gpiod_set_value_cansleep(ctx->blen_gpio, 1);
318
319 return 0;
320}
321
322static int truly_nt35521_disable(struct drm_panel *panel)
323{
324 struct truly_nt35521 *ctx = to_truly_nt35521(panel);
325
326 gpiod_set_value_cansleep(ctx->blen_gpio, 0);
327
328 return 0;
329}
330
331static const struct drm_display_mode truly_nt35521_mode = {
332 .clock = (720 + 232 + 20 + 112) * (1280 + 18 + 1 + 18) * 60 / 1000,
333 .hdisplay = 720,
334 .hsync_start = 720 + 232,
335 .hsync_end = 720 + 232 + 20,
336 .htotal = 720 + 232 + 20 + 112,
337 .vdisplay = 1280,
338 .vsync_start = 1280 + 18,
339 .vsync_end = 1280 + 18 + 1,
340 .vtotal = 1280 + 18 + 1 + 18,
341 .width_mm = 65,
342 .height_mm = 116,
343};
344
345static int truly_nt35521_get_modes(struct drm_panel *panel,
346 struct drm_connector *connector)
347{
348 struct drm_display_mode *mode;
349
350 mode = drm_mode_duplicate(connector->dev, &truly_nt35521_mode);
351 if (!mode)
352 return -ENOMEM;
353
354 drm_mode_set_name(mode);
355
356 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
357 connector->display_info.width_mm = mode->width_mm;
358 connector->display_info.height_mm = mode->height_mm;
359 drm_mode_probed_add(connector, mode);
360
361 return 1;
362}
363
364static const struct drm_panel_funcs truly_nt35521_panel_funcs = {
365 .prepare = truly_nt35521_prepare,
366 .unprepare = truly_nt35521_unprepare,
367 .enable = truly_nt35521_enable,
368 .disable = truly_nt35521_disable,
369 .get_modes = truly_nt35521_get_modes,
370};
371
372static int truly_nt35521_bl_update_status(struct backlight_device *bl)
373{
374 struct mipi_dsi_device *dsi = bl_get_data(bl);
375 u16 brightness = backlight_get_brightness(bl);
376 int ret;
377
378 ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
379 if (ret < 0)
380 return ret;
381
382 return 0;
383}
384
385static int truly_nt35521_bl_get_brightness(struct backlight_device *bl)
386{
387 struct mipi_dsi_device *dsi = bl_get_data(bl);
388 u16 brightness;
389 int ret;
390
391 ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
392 if (ret < 0)
393 return ret;
394
395 return brightness & 0xff;
396}
397
398static const struct backlight_ops truly_nt35521_bl_ops = {
399 .update_status = truly_nt35521_bl_update_status,
400 .get_brightness = truly_nt35521_bl_get_brightness,
401};
402
403static struct backlight_device *
404truly_nt35521_create_backlight(struct mipi_dsi_device *dsi)
405{
406 struct device *dev = &dsi->dev;
407 const struct backlight_properties props = {
408 .type = BACKLIGHT_RAW,
409 .brightness = 255,
410 .max_brightness = 255,
411 };
412
413 return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
414 &truly_nt35521_bl_ops, &props);
415}
416
417static int truly_nt35521_probe(struct mipi_dsi_device *dsi)
418{
419 struct device *dev = &dsi->dev;
420 struct truly_nt35521 *ctx;
421 int ret;
422
423 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
424 if (!ctx)
425 return -ENOMEM;
426
427 ctx->supplies[0].supply = "positive5";
428 ctx->supplies[1].supply = "negative5";
429 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
430 ctx->supplies);
431 if (ret < 0) {
432 dev_err(dev, "Failed to get regulators: %d\n", ret);
433 return ret;
434 }
435
436 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
437 if (IS_ERR(ctx->reset_gpio))
438 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
439 "Failed to get reset-gpios\n");
440
441 ctx->blen_gpio = devm_gpiod_get(dev, "backlight", GPIOD_OUT_LOW);
442 if (IS_ERR(ctx->blen_gpio))
443 return dev_err_probe(dev, PTR_ERR(ctx->blen_gpio),
444 "Failed to get backlight-gpios\n");
445
446 ctx->dsi = dsi;
447 mipi_dsi_set_drvdata(dsi, ctx);
448
449 dsi->lanes = 4;
450 dsi->format = MIPI_DSI_FMT_RGB888;
451 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
452 MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_NO_EOT_PACKET |
453 MIPI_DSI_CLOCK_NON_CONTINUOUS;
454
455 drm_panel_init(&ctx->panel, dev, &truly_nt35521_panel_funcs,
456 DRM_MODE_CONNECTOR_DSI);
457
458 ctx->panel.backlight = truly_nt35521_create_backlight(dsi);
459 if (IS_ERR(ctx->panel.backlight))
460 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
461 "Failed to create backlight\n");
462
463 drm_panel_add(&ctx->panel);
464
465 ret = mipi_dsi_attach(dsi);
466 if (ret < 0) {
467 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
468 drm_panel_remove(&ctx->panel);
469 return ret;
470 }
471
472 return 0;
473}
474
475static void truly_nt35521_remove(struct mipi_dsi_device *dsi)
476{
477 struct truly_nt35521 *ctx = mipi_dsi_get_drvdata(dsi);
478 int ret;
479
480 ret = mipi_dsi_detach(dsi);
481 if (ret < 0)
482 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
483
484 drm_panel_remove(&ctx->panel);
485}
486
487static const struct of_device_id truly_nt35521_of_match[] = {
488 { .compatible = "sony,tulip-truly-nt35521" },
489 { /* sentinel */ }
490};
491MODULE_DEVICE_TABLE(of, truly_nt35521_of_match);
492
493static struct mipi_dsi_driver truly_nt35521_driver = {
494 .probe = truly_nt35521_probe,
495 .remove = truly_nt35521_remove,
496 .driver = {
497 .name = "panel-truly-nt35521",
498 .of_match_table = truly_nt35521_of_match,
499 },
500};
501module_mipi_dsi_driver(truly_nt35521_driver);
502
503MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
504MODULE_DESCRIPTION("DRM driver for Sony Tulip Truly NT35521 panel");
505MODULE_LICENSE("GPL v2");