1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2019, The Linux Foundation. All rights reserved.
4 */
5
6 #include <linux/backlight.h>
7 #include <linux/delay.h>
8 #include <linux/module.h>
9 #include <linux/property.h>
10 #include <linux/mod_devicetable.h>
11 #include <linux/gpio/consumer.h>
12 #include <linux/regulator/consumer.h>
13
14 #include <video/mipi_display.h>
15
16 #include <drm/drm_mipi_dsi.h>
17 #include <drm/drm_modes.h>
18 #include <drm/drm_panel.h>
19
20 struct visionox_rm69299_panel_desc {
21 const struct drm_display_mode *mode;
22 const u8 *init_seq;
23 unsigned int init_seq_len;
24 int max_brightness;
25 int initial_brightness;
26 };
27
28 struct visionox_rm69299 {
29 struct drm_panel panel;
30 struct regulator_bulk_data *supplies;
31 struct gpio_desc *reset_gpio;
32 struct mipi_dsi_device *dsi;
33 const struct visionox_rm69299_panel_desc *desc;
34 };
35
36 static const struct regulator_bulk_data visionox_rm69299_supplies[] = {
37 { .supply = "vdda", .init_load_uA = 32000 },
38 { .supply = "vdd3p3", .init_load_uA = 13200 },
39 };
40
41 static const u8 visionox_rm69299_1080x2248_60hz_init_seq[][2] = {
42 { 0xfe, 0x00 }, { 0xc2, 0x08 }, { 0x35, 0x00 }, { 0x51, 0xff },
43 };
44
45 static const u8 visionox_rm69299_1080x2160_60hz_init_seq[][2] = {
46 { 0xfe, 0x40 }, { 0x05, 0x04 }, { 0x06, 0x08 }, { 0x08, 0x04 },
47 { 0x09, 0x08 }, { 0x0a, 0x07 }, { 0x0b, 0xcc }, { 0x0c, 0x07 },
48 { 0x0d, 0x90 }, { 0x0f, 0x87 }, { 0x20, 0x8d }, { 0x21, 0x8d },
49 { 0x24, 0x05 }, { 0x26, 0x05 }, { 0x28, 0x05 }, { 0x2a, 0x05 },
50 { 0x2d, 0x28 }, { 0x2f, 0x28 }, { 0x30, 0x32 }, { 0x31, 0x32 },
51 { 0x37, 0x80 }, { 0x38, 0x30 }, { 0x39, 0xa8 }, { 0x46, 0x48 },
52 { 0x47, 0x48 }, { 0x6b, 0x10 }, { 0x6f, 0x02 }, { 0x74, 0x2b },
53 { 0x80, 0x1a }, { 0xfe, 0x40 }, { 0x93, 0x10 }, { 0x16, 0x00 },
54 { 0x85, 0x07 }, { 0x84, 0x01 }, { 0x86, 0x0f }, { 0x87, 0x05 },
55 { 0x8c, 0x00 }, { 0x88, 0x2e }, { 0x89, 0x2e }, { 0x8b, 0x09 },
56 { 0x95, 0x00 }, { 0x91, 0x00 }, { 0x90, 0x00 }, { 0x8d, 0xd0 },
57 { 0x8a, 0x03 }, { 0xfe, 0xa0 }, { 0x13, 0x00 }, { 0x33, 0x00 },
58 { 0x0b, 0x33 }, { 0x36, 0x1e }, { 0x31, 0x88 }, { 0x32, 0x88 },
59 { 0x37, 0xf1 }, { 0xfe, 0x50 }, { 0x00, 0x00 }, { 0x01, 0x00 },
60 { 0x02, 0x00 }, { 0x03, 0xe9 }, { 0x04, 0x00 }, { 0x05, 0xf6 },
61 { 0x06, 0x01 }, { 0x07, 0x2c }, { 0x08, 0x01 }, { 0x09, 0x62 },
62 { 0x0a, 0x01 }, { 0x0b, 0x98 }, { 0x0c, 0x01 }, { 0x0d, 0xbf },
63 { 0x0e, 0x01 }, { 0x0f, 0xf6 }, { 0x10, 0x02 }, { 0x11, 0x24 },
64 { 0x12, 0x02 }, { 0x13, 0x4e }, { 0x14, 0x02 }, { 0x15, 0x70 },
65 { 0x16, 0x02 }, { 0x17, 0xaf }, { 0x18, 0x02 }, { 0x19, 0xe2 },
66 { 0x1a, 0x03 }, { 0x1b, 0x1f }, { 0x1c, 0x03 }, { 0x1d, 0x52 },
67 { 0x1e, 0x03 }, { 0x1f, 0x82 }, { 0x20, 0x03 }, { 0x21, 0xb6 },
68 { 0x22, 0x03 }, { 0x23, 0xf0 }, { 0x24, 0x04 }, { 0x25, 0x1f },
69 { 0x26, 0x04 }, { 0x27, 0x37 }, { 0x28, 0x04 }, { 0x29, 0x59 },
70 { 0x2a, 0x04 }, { 0x2b, 0x68 }, { 0x30, 0x04 }, { 0x31, 0x85 },
71 { 0x32, 0x04 }, { 0x33, 0xa2 }, { 0x34, 0x04 }, { 0x35, 0xbc },
72 { 0x36, 0x04 }, { 0x37, 0xd8 }, { 0x38, 0x04 }, { 0x39, 0xf4 },
73 { 0x3a, 0x05 }, { 0x3b, 0x0e }, { 0x40, 0x05 }, { 0x41, 0x13 },
74 { 0x42, 0x05 }, { 0x43, 0x1f }, { 0x44, 0x05 }, { 0x45, 0x1f },
75 { 0x46, 0x00 }, { 0x47, 0x00 }, { 0x48, 0x01 }, { 0x49, 0x43 },
76 { 0x4a, 0x01 }, { 0x4b, 0x4c }, { 0x4c, 0x01 }, { 0x4d, 0x6f },
77 { 0x4e, 0x01 }, { 0x4f, 0x92 }, { 0x50, 0x01 }, { 0x51, 0xb5 },
78 { 0x52, 0x01 }, { 0x53, 0xd4 }, { 0x58, 0x02 }, { 0x59, 0x06 },
79 { 0x5a, 0x02 }, { 0x5b, 0x33 }, { 0x5c, 0x02 }, { 0x5d, 0x59 },
80 { 0x5e, 0x02 }, { 0x5f, 0x7d }, { 0x60, 0x02 }, { 0x61, 0xbd },
81 { 0x62, 0x02 }, { 0x63, 0xf7 }, { 0x64, 0x03 }, { 0x65, 0x31 },
82 { 0x66, 0x03 }, { 0x67, 0x63 }, { 0x68, 0x03 }, { 0x69, 0x9d },
83 { 0x6a, 0x03 }, { 0x6b, 0xd2 }, { 0x6c, 0x04 }, { 0x6d, 0x05 },
84 { 0x6e, 0x04 }, { 0x6f, 0x38 }, { 0x70, 0x04 }, { 0x71, 0x51 },
85 { 0x72, 0x04 }, { 0x73, 0x70 }, { 0x74, 0x04 }, { 0x75, 0x85 },
86 { 0x76, 0x04 }, { 0x77, 0xa1 }, { 0x78, 0x04 }, { 0x79, 0xc0 },
87 { 0x7a, 0x04 }, { 0x7b, 0xd8 }, { 0x7c, 0x04 }, { 0x7d, 0xf2 },
88 { 0x7e, 0x05 }, { 0x7f, 0x10 }, { 0x80, 0x05 }, { 0x81, 0x21 },
89 { 0x82, 0x05 }, { 0x83, 0x2e }, { 0x84, 0x05 }, { 0x85, 0x3a },
90 { 0x86, 0x05 }, { 0x87, 0x3e }, { 0x88, 0x00 }, { 0x89, 0x00 },
91 { 0x8a, 0x01 }, { 0x8b, 0x86 }, { 0x8c, 0x01 }, { 0x8d, 0x8f },
92 { 0x8e, 0x01 }, { 0x8f, 0xb3 }, { 0x90, 0x01 }, { 0x91, 0xd7 },
93 { 0x92, 0x01 }, { 0x93, 0xfb }, { 0x94, 0x02 }, { 0x95, 0x18 },
94 { 0x96, 0x02 }, { 0x97, 0x4f }, { 0x98, 0x02 }, { 0x99, 0x7e },
95 { 0x9a, 0x02 }, { 0x9b, 0xa6 }, { 0x9c, 0x02 }, { 0x9d, 0xcf },
96 { 0x9e, 0x03 }, { 0x9f, 0x14 }, { 0xa4, 0x03 }, { 0xa5, 0x52 },
97 { 0xa6, 0x03 }, { 0xa7, 0x93 }, { 0xac, 0x03 }, { 0xad, 0xcf },
98 { 0xae, 0x04 }, { 0xaf, 0x08 }, { 0xb0, 0x04 }, { 0xb1, 0x42 },
99 { 0xb2, 0x04 }, { 0xb3, 0x7f }, { 0xb4, 0x04 }, { 0xb5, 0xb4 },
100 { 0xb6, 0x04 }, { 0xb7, 0xcc }, { 0xb8, 0x04 }, { 0xb9, 0xf2 },
101 { 0xba, 0x05 }, { 0xbb, 0x0c }, { 0xbc, 0x05 }, { 0xbd, 0x26 },
102 { 0xbe, 0x05 }, { 0xbf, 0x4b }, { 0xc0, 0x05 }, { 0xc1, 0x64 },
103 { 0xc2, 0x05 }, { 0xc3, 0x83 }, { 0xc4, 0x05 }, { 0xc5, 0xa1 },
104 { 0xc6, 0x05 }, { 0xc7, 0xba }, { 0xc8, 0x05 }, { 0xc9, 0xc4 },
105 { 0xca, 0x05 }, { 0xcb, 0xd5 }, { 0xcc, 0x05 }, { 0xcd, 0xd5 },
106 { 0xce, 0x00 }, { 0xcf, 0xce }, { 0xd0, 0x00 }, { 0xd1, 0xdb },
107 { 0xd2, 0x01 }, { 0xd3, 0x32 }, { 0xd4, 0x01 }, { 0xd5, 0x3b },
108 { 0xd6, 0x01 }, { 0xd7, 0x74 }, { 0xd8, 0x01 }, { 0xd9, 0x7d },
109 { 0xfe, 0x60 }, { 0x00, 0xcc }, { 0x01, 0x0f }, { 0x02, 0xff },
110 { 0x03, 0x01 }, { 0x04, 0x00 }, { 0x05, 0x02 }, { 0x06, 0x00 },
111 { 0x07, 0x00 }, { 0x09, 0xc4 }, { 0x0a, 0x00 }, { 0x0b, 0x04 },
112 { 0x0c, 0x01 }, { 0x0d, 0x00 }, { 0x0e, 0x04 }, { 0x0f, 0x00 },
113 { 0x10, 0x71 }, { 0x12, 0xc4 }, { 0x13, 0x00 }, { 0x14, 0x04 },
114 { 0x15, 0x01 }, { 0x16, 0x00 }, { 0x17, 0x06 }, { 0x18, 0x00 },
115 { 0x19, 0x71 }, { 0x1b, 0xc4 }, { 0x1c, 0x00 }, { 0x1d, 0x02 },
116 { 0x1e, 0x00 }, { 0x1f, 0x00 }, { 0x20, 0x08 }, { 0x21, 0x66 },
117 { 0x22, 0xb4 }, { 0x24, 0xc4 }, { 0x25, 0x00 }, { 0x26, 0x02 },
118 { 0x27, 0x00 }, { 0x28, 0x00 }, { 0x29, 0x07 }, { 0x2a, 0x66 },
119 { 0x2b, 0xb4 }, { 0x2f, 0xc4 }, { 0x30, 0x00 }, { 0x31, 0x04 },
120 { 0x32, 0x01 }, { 0x33, 0x00 }, { 0x34, 0x03 }, { 0x35, 0x00 },
121 { 0x36, 0x71 }, { 0x38, 0xc4 }, { 0x39, 0x00 }, { 0x3a, 0x04 },
122 { 0x3b, 0x01 }, { 0x3d, 0x00 }, { 0x3f, 0x05 }, { 0x40, 0x00 },
123 { 0x41, 0x71 }, { 0x83, 0xce }, { 0x84, 0x02 }, { 0x85, 0x20 },
124 { 0x86, 0xdc }, { 0x87, 0x00 }, { 0x88, 0x04 }, { 0x89, 0x00 },
125 { 0x8a, 0xbb }, { 0x8b, 0x80 }, { 0xc7, 0x0e }, { 0xc8, 0x05 },
126 { 0xc9, 0x1f }, { 0xca, 0x06 }, { 0xcb, 0x00 }, { 0xcc, 0x03 },
127 { 0xcd, 0x04 }, { 0xce, 0x1f }, { 0xcf, 0x1f }, { 0xd0, 0x1f },
128 { 0xd1, 0x1f }, { 0xd2, 0x1f }, { 0xd3, 0x1f }, { 0xd4, 0x1f },
129 { 0xd5, 0x1f }, { 0xd6, 0x1f }, { 0xd7, 0x17 }, { 0xd8, 0x1f },
130 { 0xd9, 0x16 }, { 0xda, 0x1f }, { 0xdb, 0x0e }, { 0xdc, 0x01 },
131 { 0xdd, 0x1f }, { 0xde, 0x02 }, { 0xdf, 0x00 }, { 0xe0, 0x03 },
132 { 0xe1, 0x04 }, { 0xe2, 0x1f }, { 0xe3, 0x1f }, { 0xe4, 0x1f },
133 { 0xe5, 0x1f }, { 0xe6, 0x1f }, { 0xe7, 0x1f }, { 0xe8, 0x1f },
134 { 0xe9, 0x1f }, { 0xea, 0x1f }, { 0xeb, 0x17 }, { 0xec, 0x1f },
135 { 0xed, 0x16 }, { 0xee, 0x1f }, { 0xef, 0x03 }, { 0xfe, 0x70 },
136 { 0x5a, 0x0b }, { 0x5b, 0x0b }, { 0x5c, 0x55 }, { 0x5d, 0x24 },
137 { 0xfe, 0x90 }, { 0x12, 0x24 }, { 0x13, 0x49 }, { 0x14, 0x92 },
138 { 0x15, 0x86 }, { 0x16, 0x61 }, { 0x17, 0x18 }, { 0x18, 0x24 },
139 { 0x19, 0x49 }, { 0x1a, 0x92 }, { 0x1b, 0x86 }, { 0x1c, 0x61 },
140 { 0x1d, 0x18 }, { 0x1e, 0x24 }, { 0x1f, 0x49 }, { 0x20, 0x92 },
141 { 0x21, 0x86 }, { 0x22, 0x61 }, { 0x23, 0x18 }, { 0xfe, 0x40 },
142 { 0x0e, 0x10 }, { 0xfe, 0xa0 }, { 0x04, 0x80 }, { 0x16, 0x00 },
143 { 0x26, 0x10 }, { 0x2f, 0x37 }, { 0xfe, 0xd0 }, { 0x06, 0x0f },
144 { 0x4b, 0x00 }, { 0x56, 0x4a }, { 0xfe, 0x00 }, { 0xc2, 0x09 },
145 { 0x35, 0x00 }, { 0xfe, 0x70 }, { 0x7d, 0x61 }, { 0x7f, 0x00 },
146 { 0x7e, 0x4e }, { 0x52, 0x2c }, { 0x49, 0x00 }, { 0x4a, 0x00 },
147 { 0x4b, 0x00 }, { 0x4c, 0x00 }, { 0x4d, 0xe8 }, { 0x4e, 0x25 },
148 { 0x4f, 0x6e }, { 0x50, 0xae }, { 0x51, 0x2f }, { 0xad, 0xf4 },
149 { 0xae, 0x8f }, { 0xaf, 0x00 }, { 0xb0, 0x54 }, { 0xb1, 0x3a },
150 { 0xb2, 0x00 }, { 0xb3, 0x00 }, { 0xb4, 0x00 }, { 0xb5, 0x00 },
151 { 0xb6, 0x18 }, { 0xb7, 0x30 }, { 0xb8, 0x4a }, { 0xb9, 0x98 },
152 { 0xba, 0x30 }, { 0xbb, 0x60 }, { 0xbc, 0x50 }, { 0xbd, 0x00 },
153 { 0xbe, 0x00 }, { 0xbf, 0x39 }, { 0xfe, 0x00 }, { 0x51, 0x66 },
154 };
155
panel_to_ctx(struct drm_panel * panel)156 static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
157 {
158 return container_of(panel, struct visionox_rm69299, panel);
159 }
160
visionox_rm69299_power_on(struct visionox_rm69299 * ctx)161 static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)
162 {
163 int ret;
164
165 ret = regulator_bulk_enable(ARRAY_SIZE(visionox_rm69299_supplies),
166 ctx->supplies);
167 if (ret < 0)
168 return ret;
169
170 /*
171 * Reset sequence of visionox panel requires the panel to be
172 * out of reset for 10ms, followed by being held in reset
173 * for 10ms and then out again
174 */
175 gpiod_set_value(ctx->reset_gpio, 1);
176 usleep_range(10000, 20000);
177 gpiod_set_value(ctx->reset_gpio, 0);
178 usleep_range(10000, 20000);
179 gpiod_set_value(ctx->reset_gpio, 1);
180 usleep_range(10000, 20000);
181
182 return 0;
183 }
184
visionox_rm69299_power_off(struct visionox_rm69299 * ctx)185 static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
186 {
187 gpiod_set_value(ctx->reset_gpio, 0);
188
189 return regulator_bulk_disable(ARRAY_SIZE(visionox_rm69299_supplies),
190 ctx->supplies);
191 }
192
visionox_rm69299_unprepare(struct drm_panel * panel)193 static int visionox_rm69299_unprepare(struct drm_panel *panel)
194 {
195 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
196 struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
197
198 ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
199
200 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
201
202 /* 120ms delay required here as per DCS spec */
203 mipi_dsi_msleep(&dsi_ctx, 120);
204
205 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
206
207 return visionox_rm69299_power_off(ctx);
208 }
209
visionox_rm69299_prepare(struct drm_panel * panel)210 static int visionox_rm69299_prepare(struct drm_panel *panel)
211 {
212 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
213 struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
214 int ret, i;
215
216 ret = visionox_rm69299_power_on(ctx);
217 if (ret < 0)
218 return ret;
219
220 ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
221
222 for (i = 0; i < ctx->desc->init_seq_len; i++)
223 mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, &ctx->desc->init_seq[i * 2], 2);
224
225 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
226
227 /* Per DSI spec wait 120ms after sending exit sleep DCS command */
228 mipi_dsi_msleep(&dsi_ctx, 120);
229
230 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
231
232 /* Per DSI spec wait 120ms after sending set_display_on DCS command */
233 mipi_dsi_msleep(&dsi_ctx, 120);
234
235 return dsi_ctx.accum_err;
236 }
237
238 static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = {
239 .name = "1080x2248",
240 .clock = 158695,
241 .hdisplay = 1080,
242 .hsync_start = 1080 + 26,
243 .hsync_end = 1080 + 26 + 2,
244 .htotal = 1080 + 26 + 2 + 36,
245 .vdisplay = 2248,
246 .vsync_start = 2248 + 56,
247 .vsync_end = 2248 + 56 + 4,
248 .vtotal = 2248 + 56 + 4 + 4,
249 .flags = 0,
250 };
251
252 static const struct drm_display_mode visionox_rm69299_1080x2160_60hz = {
253 .clock = (2160 + 8 + 4 + 4) * (1080 + 26 + 2 + 36) * 60 / 1000,
254 .hdisplay = 1080,
255 .hsync_start = 1080 + 26,
256 .hsync_end = 1080 + 26 + 2,
257 .htotal = 1080 + 26 + 2 + 36,
258 .vdisplay = 2160,
259 .vsync_start = 2160 + 8,
260 .vsync_end = 2160 + 8 + 4,
261 .vtotal = 2160 + 8 + 4 + 4,
262 .flags = 0,
263 };
264
visionox_rm69299_get_modes(struct drm_panel * panel,struct drm_connector * connector)265 static int visionox_rm69299_get_modes(struct drm_panel *panel,
266 struct drm_connector *connector)
267 {
268 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
269 struct drm_display_mode *mode;
270
271 mode = drm_mode_duplicate(connector->dev, ctx->desc->mode);
272 if (!mode) {
273 dev_err(ctx->panel.dev, "failed to create a new display mode\n");
274 return 0;
275 }
276
277 connector->display_info.width_mm = 74;
278 connector->display_info.height_mm = 131;
279 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
280 drm_mode_probed_add(connector, mode);
281
282 return 1;
283 }
284
285 static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
286 .unprepare = visionox_rm69299_unprepare,
287 .prepare = visionox_rm69299_prepare,
288 .get_modes = visionox_rm69299_get_modes,
289 };
290
visionox_rm69299_bl_get_brightness(struct backlight_device * bl)291 static int visionox_rm69299_bl_get_brightness(struct backlight_device *bl)
292 {
293 struct mipi_dsi_device *dsi = bl_get_data(bl);
294 u16 brightness;
295 int ret;
296
297 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
298
299 ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
300 if (ret < 0)
301 return ret;
302
303 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
304
305 return brightness;
306 }
307
visionox_rm69299_bl_update_status(struct backlight_device * bl)308 static int visionox_rm69299_bl_update_status(struct backlight_device *bl)
309 {
310 struct mipi_dsi_device *dsi = bl_get_data(bl);
311 u16 brightness = backlight_get_brightness(bl);
312 int ret;
313
314 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
315
316 ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
317 if (ret < 0)
318 return ret;
319
320 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
321
322 return 0;
323 }
324
325 static const struct backlight_ops visionox_rm69299_bl_ops = {
326 .update_status = visionox_rm69299_bl_update_status,
327 .get_brightness = visionox_rm69299_bl_get_brightness,
328 };
329
330 static struct backlight_device *
visionox_rm69299_create_backlight(struct visionox_rm69299 * ctx)331 visionox_rm69299_create_backlight(struct visionox_rm69299 *ctx)
332 {
333 struct device *dev = &ctx->dsi->dev;
334 const struct backlight_properties props = {
335 .type = BACKLIGHT_RAW,
336 .brightness = ctx->desc->initial_brightness,
337 .max_brightness = ctx->desc->max_brightness,
338 };
339
340 if (!ctx->desc->max_brightness)
341 return 0;
342
343 return devm_backlight_device_register(dev, dev_name(dev), dev, ctx->dsi,
344 &visionox_rm69299_bl_ops,
345 &props);
346 }
347
visionox_rm69299_probe(struct mipi_dsi_device * dsi)348 static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
349 {
350 struct device *dev = &dsi->dev;
351 struct visionox_rm69299 *ctx;
352 int ret;
353
354 ctx = devm_drm_panel_alloc(dev, struct visionox_rm69299, panel,
355 &visionox_rm69299_drm_funcs,
356 DRM_MODE_CONNECTOR_DSI);
357 if (IS_ERR(ctx))
358 return PTR_ERR(ctx);
359
360 ctx->desc = device_get_match_data(dev);
361 if (!ctx->desc)
362 return -EINVAL;
363
364 mipi_dsi_set_drvdata(dsi, ctx);
365
366 ctx->dsi = dsi;
367
368 ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(visionox_rm69299_supplies),
369 visionox_rm69299_supplies, &ctx->supplies);
370 if (ret < 0)
371 return ret;
372
373 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
374 if (IS_ERR(ctx->reset_gpio)) {
375 dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio));
376 return PTR_ERR(ctx->reset_gpio);
377 }
378
379 ctx->panel.prepare_prev_first = true;
380
381 ctx->panel.backlight = visionox_rm69299_create_backlight(ctx);
382 if (IS_ERR(ctx->panel.backlight))
383 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
384 "Failed to create backlight\n");
385
386 drm_panel_add(&ctx->panel);
387
388 dsi->lanes = 4;
389 dsi->format = MIPI_DSI_FMT_RGB888;
390 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
391 MIPI_DSI_CLOCK_NON_CONTINUOUS;
392 ret = mipi_dsi_attach(dsi);
393 if (ret < 0) {
394 dev_err(dev, "dsi attach failed ret = %d\n", ret);
395 goto err_dsi_attach;
396 }
397
398 return 0;
399
400 err_dsi_attach:
401 drm_panel_remove(&ctx->panel);
402 return ret;
403 }
404
visionox_rm69299_remove(struct mipi_dsi_device * dsi)405 static void visionox_rm69299_remove(struct mipi_dsi_device *dsi)
406 {
407 struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
408
409 mipi_dsi_detach(ctx->dsi);
410 drm_panel_remove(&ctx->panel);
411 }
412
413 const struct visionox_rm69299_panel_desc visionox_rm69299_1080p_display_desc = {
414 .mode = &visionox_rm69299_1080x2248_60hz,
415 .init_seq = (const u8 *)visionox_rm69299_1080x2248_60hz_init_seq,
416 .init_seq_len = ARRAY_SIZE(visionox_rm69299_1080x2248_60hz_init_seq),
417 };
418
419 const struct visionox_rm69299_panel_desc visionox_rm69299_shift_desc = {
420 .mode = &visionox_rm69299_1080x2160_60hz,
421 .init_seq = (const u8 *)visionox_rm69299_1080x2160_60hz_init_seq,
422 .init_seq_len = ARRAY_SIZE(visionox_rm69299_1080x2160_60hz_init_seq),
423 .max_brightness = 255,
424 .initial_brightness = 50,
425 };
426
427 static const struct of_device_id visionox_rm69299_of_match[] = {
428 { .compatible = "visionox,rm69299-1080p-display",
429 .data = &visionox_rm69299_1080p_display_desc },
430 { .compatible = "visionox,rm69299-shift",
431 .data = &visionox_rm69299_shift_desc },
432 { /* sentinel */ }
433 };
434 MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
435
436 static struct mipi_dsi_driver visionox_rm69299_driver = {
437 .driver = {
438 .name = "panel-visionox-rm69299",
439 .of_match_table = visionox_rm69299_of_match,
440 },
441 .probe = visionox_rm69299_probe,
442 .remove = visionox_rm69299_remove,
443 };
444 module_mipi_dsi_driver(visionox_rm69299_driver);
445
446 MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver");
447 MODULE_LICENSE("GPL v2");
448