1 | //SPDX-License-Identifier: GPL-2.0-only |
2 | //Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. |
3 | |
4 | #include <linux/backlight.h> |
5 | #include <linux/delay.h> |
6 | #include <linux/gpio/consumer.h> |
7 | #include <linux/module.h> |
8 | #include <linux/of.h> |
9 | #include <linux/regulator/consumer.h> |
10 | |
11 | #include <drm/drm_mipi_dsi.h> |
12 | #include <drm/drm_probe_helper.h> |
13 | #include <drm/drm_modes.h> |
14 | #include <drm/drm_panel.h> |
15 | #include <drm/display/drm_dsc.h> |
16 | #include <drm/display/drm_dsc_helper.h> |
17 | |
18 | #include <video/mipi_display.h> |
19 | |
20 | struct visionox_r66451 { |
21 | struct drm_panel panel; |
22 | struct mipi_dsi_device *dsi; |
23 | struct gpio_desc *reset_gpio; |
24 | struct regulator_bulk_data supplies[2]; |
25 | }; |
26 | |
27 | static inline struct visionox_r66451 *to_visionox_r66451(struct drm_panel *panel) |
28 | { |
29 | return container_of(panel, struct visionox_r66451, panel); |
30 | } |
31 | |
32 | static void visionox_r66451_reset(struct visionox_r66451 *ctx) |
33 | { |
34 | gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 0); |
35 | usleep_range(min: 10000, max: 10100); |
36 | gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1); |
37 | usleep_range(min: 10000, max: 10100); |
38 | gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 0); |
39 | usleep_range(min: 10000, max: 10100); |
40 | } |
41 | |
42 | static int visionox_r66451_on(struct visionox_r66451 *ctx) |
43 | { |
44 | struct mipi_dsi_device *dsi = ctx->dsi; |
45 | |
46 | dsi->mode_flags |= MIPI_DSI_MODE_LPM; |
47 | |
48 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00); |
49 | mipi_dsi_dcs_write_seq(dsi, 0xc2, |
50 | 0x09, 0x24, 0x0c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, |
51 | 0x09, 0x3c); |
52 | mipi_dsi_dcs_write_seq(dsi, 0xd7, |
53 | 0x00, 0xb9, 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a, |
54 | 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19, |
55 | 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a); |
56 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80); |
57 | mipi_dsi_dcs_write_seq(dsi, 0xde, |
58 | 0x40, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, |
59 | 0x10, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x02, 0x00, 0x00); |
60 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04); |
61 | mipi_dsi_dcs_write_seq(dsi, 0xe8, 0x00, 0x02); |
62 | mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x00, 0x08); |
63 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00); |
64 | mipi_dsi_dcs_write_seq(dsi, 0xc4, |
65 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
66 | 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x32); |
67 | mipi_dsi_dcs_write_seq(dsi, 0xcf, |
68 | 0x64, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, |
69 | 0x00, 0x0b, 0x77, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
70 | 0x02, 0x02, 0x02, 0x02, 0x02, 0x03); |
71 | mipi_dsi_dcs_write_seq(dsi, 0xd3, |
72 | 0x45, 0x00, 0x00, 0x01, 0x13, 0x15, 0x00, 0x15, 0x07, |
73 | 0x0f, 0x77, 0x77, 0x77, 0x37, 0xb2, 0x11, 0x00, 0xa0, |
74 | 0x3c, 0x9c); |
75 | mipi_dsi_dcs_write_seq(dsi, 0xd7, |
76 | 0x00, 0xb9, 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a, |
77 | 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19, |
78 | 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a); |
79 | mipi_dsi_dcs_write_seq(dsi, 0xd8, |
80 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
81 | 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, |
82 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
83 | 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, |
84 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, |
85 | 0x00, 0x32, 0x00, 0x0a, 0x00, 0x22); |
86 | mipi_dsi_dcs_write_seq(dsi, 0xdf, |
87 | 0x50, 0x42, 0x58, 0x81, 0x2d, 0x00, 0x00, 0x00, 0x00, |
88 | 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
89 | 0x00, 0x00, 0x01, 0x0f, 0xff, 0xd4, 0x0e, 0x00, 0x00, |
90 | 0x00, 0x00, 0x00, 0x00, 0x0f, 0x53, 0xf1, 0x00, 0x00, |
91 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); |
92 | mipi_dsi_dcs_write_seq(dsi, 0xf7, 0x01); |
93 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80); |
94 | mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x34, 0xb4, 0x00, 0x00, 0x00, 0x39, 0x04, 0x09, 0x34); |
95 | mipi_dsi_dcs_write_seq(dsi, 0xe6, 0x00); |
96 | mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04); |
97 | mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x40); |
98 | mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x50, 0x00, 0x00, 0x00, 0x00); |
99 | mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x11); |
100 | mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x01); |
101 | mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x00, 0x02); |
102 | mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x19); |
103 | mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x42); |
104 | mipi_dsi_dcs_set_tear_on(dsi, mode: MIPI_DSI_DCS_TEAR_MODE_VBLANK); |
105 | mipi_dsi_dcs_set_column_address(dsi, start: 0, end: 1080 - 1); |
106 | mipi_dsi_dcs_set_page_address(dsi, start: 0, end: 2340 - 1); |
107 | |
108 | dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; |
109 | |
110 | return 0; |
111 | } |
112 | |
113 | static int visionox_r66451_off(struct visionox_r66451 *ctx) |
114 | { |
115 | ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; |
116 | return 0; |
117 | } |
118 | |
119 | static int visionox_r66451_prepare(struct drm_panel *panel) |
120 | { |
121 | struct visionox_r66451 *ctx = to_visionox_r66451(panel); |
122 | struct mipi_dsi_device *dsi = ctx->dsi; |
123 | struct device *dev = &dsi->dev; |
124 | int ret; |
125 | |
126 | ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), |
127 | consumers: ctx->supplies); |
128 | if (ret < 0) |
129 | return ret; |
130 | |
131 | visionox_r66451_reset(ctx); |
132 | |
133 | ret = visionox_r66451_on(ctx); |
134 | if (ret < 0) { |
135 | dev_err(dev, "Failed to initialize panel: %d\n" , ret); |
136 | gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1); |
137 | regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), consumers: ctx->supplies); |
138 | return ret; |
139 | } |
140 | |
141 | mipi_dsi_compression_mode(dsi: ctx->dsi, enable: true); |
142 | |
143 | return 0; |
144 | } |
145 | |
146 | static int visionox_r66451_unprepare(struct drm_panel *panel) |
147 | { |
148 | struct visionox_r66451 *ctx = to_visionox_r66451(panel); |
149 | struct device *dev = &ctx->dsi->dev; |
150 | int ret; |
151 | |
152 | ret = visionox_r66451_off(ctx); |
153 | if (ret < 0) |
154 | dev_err(dev, "Failed to un-initialize panel: %d\n" , ret); |
155 | |
156 | gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1); |
157 | regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), consumers: ctx->supplies); |
158 | |
159 | return 0; |
160 | } |
161 | |
162 | static const struct drm_display_mode visionox_r66451_mode = { |
163 | .clock = 345830, |
164 | .hdisplay = 1080, |
165 | .hsync_start = 1175, |
166 | .hsync_end = 1176, |
167 | .htotal = 1216, |
168 | .vdisplay = 2340, |
169 | .vsync_start = 2365, |
170 | .vsync_end = 2366, |
171 | .vtotal = 2370, |
172 | .width_mm = 0, |
173 | .height_mm = 0, |
174 | .type = DRM_MODE_TYPE_DRIVER, |
175 | }; |
176 | |
177 | static int visionox_r66451_enable(struct drm_panel *panel) |
178 | { |
179 | struct visionox_r66451 *ctx = to_visionox_r66451(panel); |
180 | struct mipi_dsi_device *dsi = ctx->dsi; |
181 | struct drm_dsc_picture_parameter_set pps; |
182 | int ret; |
183 | |
184 | if (!dsi->dsc) { |
185 | dev_err(&dsi->dev, "DSC not attached to DSI\n" ); |
186 | return -ENODEV; |
187 | } |
188 | |
189 | drm_dsc_pps_payload_pack(pps_sdp: &pps, dsc_cfg: dsi->dsc); |
190 | ret = mipi_dsi_picture_parameter_set(dsi, pps: &pps); |
191 | if (ret) { |
192 | dev_err(&dsi->dev, "Failed to set PPS\n" ); |
193 | return ret; |
194 | } |
195 | |
196 | ret = mipi_dsi_dcs_exit_sleep_mode(dsi); |
197 | if (ret < 0) { |
198 | dev_err(&dsi->dev, "Failed to exit sleep mode: %d\n" , ret); |
199 | return ret; |
200 | } |
201 | msleep(msecs: 120); |
202 | |
203 | ret = mipi_dsi_dcs_set_display_on(dsi); |
204 | if (ret < 0) { |
205 | dev_err(&dsi->dev, "Failed on set display on: %d\n" , ret); |
206 | return ret; |
207 | } |
208 | msleep(msecs: 20); |
209 | |
210 | return 0; |
211 | } |
212 | |
213 | static int visionox_r66451_disable(struct drm_panel *panel) |
214 | { |
215 | struct visionox_r66451 *ctx = to_visionox_r66451(panel); |
216 | struct mipi_dsi_device *dsi = ctx->dsi; |
217 | struct device *dev = &dsi->dev; |
218 | int ret; |
219 | |
220 | ret = mipi_dsi_dcs_set_display_off(dsi); |
221 | if (ret < 0) { |
222 | dev_err(dev, "Failed to set display off: %d\n" , ret); |
223 | return ret; |
224 | } |
225 | msleep(msecs: 20); |
226 | |
227 | ret = mipi_dsi_dcs_enter_sleep_mode(dsi); |
228 | if (ret < 0) { |
229 | dev_err(dev, "Failed to enter sleep mode: %d\n" , ret); |
230 | return ret; |
231 | } |
232 | msleep(msecs: 120); |
233 | |
234 | return 0; |
235 | } |
236 | |
237 | static int visionox_r66451_get_modes(struct drm_panel *panel, |
238 | struct drm_connector *connector) |
239 | { |
240 | drm_connector_helper_get_modes_fixed(connector, fixed_mode: &visionox_r66451_mode); |
241 | return 1; |
242 | } |
243 | |
244 | static const struct drm_panel_funcs visionox_r66451_funcs = { |
245 | .prepare = visionox_r66451_prepare, |
246 | .unprepare = visionox_r66451_unprepare, |
247 | .get_modes = visionox_r66451_get_modes, |
248 | .enable = visionox_r66451_enable, |
249 | .disable = visionox_r66451_disable, |
250 | }; |
251 | |
252 | static int visionox_r66451_bl_update_status(struct backlight_device *bl) |
253 | { |
254 | struct mipi_dsi_device *dsi = bl_get_data(bl_dev: bl); |
255 | u16 brightness = backlight_get_brightness(bd: bl); |
256 | |
257 | return mipi_dsi_dcs_set_display_brightness(dsi, brightness); |
258 | } |
259 | |
260 | static const struct backlight_ops visionox_r66451_bl_ops = { |
261 | .update_status = visionox_r66451_bl_update_status, |
262 | }; |
263 | |
264 | static struct backlight_device * |
265 | visionox_r66451_create_backlight(struct mipi_dsi_device *dsi) |
266 | { |
267 | struct device *dev = &dsi->dev; |
268 | const struct backlight_properties props = { |
269 | .type = BACKLIGHT_RAW, |
270 | .brightness = 255, |
271 | .max_brightness = 4095, |
272 | }; |
273 | |
274 | return devm_backlight_device_register(dev, name: dev_name(dev), parent: dev, devdata: dsi, |
275 | ops: &visionox_r66451_bl_ops, props: &props); |
276 | } |
277 | |
278 | static int visionox_r66451_probe(struct mipi_dsi_device *dsi) |
279 | { |
280 | struct device *dev = &dsi->dev; |
281 | struct visionox_r66451 *ctx; |
282 | struct drm_dsc_config *dsc; |
283 | int ret = 0; |
284 | |
285 | ctx = devm_kzalloc(dev, size: sizeof(*ctx), GFP_KERNEL); |
286 | if (!ctx) |
287 | return -ENOMEM; |
288 | |
289 | dsc = devm_kzalloc(dev, size: sizeof(*dsc), GFP_KERNEL); |
290 | if (!dsc) |
291 | return -ENOMEM; |
292 | |
293 | /* Set DSC params */ |
294 | dsc->dsc_version_major = 0x1; |
295 | dsc->dsc_version_minor = 0x2; |
296 | |
297 | dsc->slice_height = 20; |
298 | dsc->slice_width = 540; |
299 | dsc->slice_count = 2; |
300 | dsc->bits_per_component = 8; |
301 | dsc->bits_per_pixel = 8 << 4; |
302 | dsc->block_pred_enable = true; |
303 | |
304 | dsi->dsc = dsc; |
305 | |
306 | ctx->supplies[0].supply = "vddio" ; |
307 | ctx->supplies[1].supply = "vdd" ; |
308 | |
309 | ret = devm_regulator_bulk_get(dev: &dsi->dev, ARRAY_SIZE(ctx->supplies), |
310 | consumers: ctx->supplies); |
311 | |
312 | if (ret < 0) |
313 | return ret; |
314 | |
315 | ctx->reset_gpio = devm_gpiod_get(dev, con_id: "reset" , flags: GPIOD_OUT_LOW); |
316 | if (IS_ERR(ptr: ctx->reset_gpio)) |
317 | return dev_err_probe(dev, err: PTR_ERR(ptr: ctx->reset_gpio), fmt: "Failed to get reset-gpios\n" ); |
318 | |
319 | ctx->dsi = dsi; |
320 | mipi_dsi_set_drvdata(dsi, data: ctx); |
321 | |
322 | dsi->lanes = 4; |
323 | dsi->format = MIPI_DSI_FMT_RGB888; |
324 | dsi->mode_flags = MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS; |
325 | ctx->panel.prepare_prev_first = true; |
326 | |
327 | drm_panel_init(panel: &ctx->panel, dev, funcs: &visionox_r66451_funcs, DRM_MODE_CONNECTOR_DSI); |
328 | ctx->panel.backlight = visionox_r66451_create_backlight(dsi); |
329 | if (IS_ERR(ptr: ctx->panel.backlight)) |
330 | return dev_err_probe(dev, err: PTR_ERR(ptr: ctx->panel.backlight), |
331 | fmt: "Failed to create backlight\n" ); |
332 | |
333 | drm_panel_add(panel: &ctx->panel); |
334 | |
335 | ret = mipi_dsi_attach(dsi); |
336 | if (ret < 0) { |
337 | dev_err(dev, "Failed to attach to DSI host: %d\n" , ret); |
338 | drm_panel_remove(panel: &ctx->panel); |
339 | } |
340 | |
341 | return ret; |
342 | } |
343 | |
344 | static void visionox_r66451_remove(struct mipi_dsi_device *dsi) |
345 | { |
346 | struct visionox_r66451 *ctx = mipi_dsi_get_drvdata(dsi); |
347 | int ret; |
348 | |
349 | ret = mipi_dsi_detach(dsi); |
350 | if (ret < 0) |
351 | dev_err(&dsi->dev, "Failed to detach DSI host: %d\n" , ret); |
352 | |
353 | drm_panel_remove(panel: &ctx->panel); |
354 | } |
355 | |
356 | static const struct of_device_id visionox_r66451_of_match[] = { |
357 | {.compatible = "visionox,r66451" }, |
358 | { /*sentinel*/ } |
359 | }; |
360 | MODULE_DEVICE_TABLE(of, visionox_r66451_of_match); |
361 | |
362 | static struct mipi_dsi_driver visionox_r66451_driver = { |
363 | .probe = visionox_r66451_probe, |
364 | .remove = visionox_r66451_remove, |
365 | .driver = { |
366 | .name = "panel-visionox-r66451" , |
367 | .of_match_table = visionox_r66451_of_match, |
368 | }, |
369 | }; |
370 | |
371 | module_mipi_dsi_driver(visionox_r66451_driver); |
372 | |
373 | MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@quicinc.com>" ); |
374 | MODULE_DESCRIPTION("Panel driver for the Visionox R66451 AMOLED DSI panel" ); |
375 | MODULE_LICENSE("GPL" ); |
376 | |