1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree.
4 * Copyright (c) 2023 Linaro Limited
5 */
6
7#include <linux/backlight.h>
8#include <linux/delay.h>
9#include <linux/gpio/consumer.h>
10#include <linux/module.h>
11#include <linux/of.h>
12#include <linux/regulator/consumer.h>
13
14#include <drm/display/drm_dsc.h>
15#include <drm/display/drm_dsc_helper.h>
16#include <drm/drm_mipi_dsi.h>
17#include <drm/drm_modes.h>
18#include <drm/drm_panel.h>
19
20struct rm692e5_panel {
21 struct drm_panel panel;
22 struct mipi_dsi_device *dsi;
23 struct drm_dsc_config dsc;
24 struct regulator_bulk_data supplies[3];
25 struct gpio_desc *reset_gpio;
26};
27
28static inline struct rm692e5_panel *to_rm692e5_panel(struct drm_panel *panel)
29{
30 return container_of(panel, struct rm692e5_panel, panel);
31}
32
33static void rm692e5_reset(struct rm692e5_panel *ctx)
34{
35 gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 0);
36 usleep_range(min: 10000, max: 11000);
37 gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1);
38 usleep_range(min: 5000, max: 6000);
39 gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 0);
40 usleep_range(min: 10000, max: 11000);
41}
42
43static void rm692e5_on(struct mipi_dsi_multi_context *dsi_ctx)
44{
45 dsi_ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
46
47 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x41);
48 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd6, 0x00);
49 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x16);
50 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x8a, 0x87);
51 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x71);
52 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x82, 0x01);
53 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc6, 0x00);
54 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc7, 0x2c);
55 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc8, 0x64);
56 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc9, 0x3c);
57 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xca, 0x80);
58 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xcb, 0x02);
59 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xcc, 0x02);
60 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x38);
61 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x13);
62 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf4);
63 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x00, 0xff);
64 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x01, 0xff);
65 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x02, 0xcf);
66 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x03, 0xbc);
67 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x04, 0xb9);
68 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x05, 0x99);
69 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x06, 0x02);
70 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x07, 0x0a);
71 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x08, 0xe0);
72 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x09, 0x4c);
73 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0a, 0xeb);
74 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0b, 0xe8);
75 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0c, 0x32);
76 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0d, 0x07);
77 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf4);
78 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0d, 0xc0);
79 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0e, 0xff);
80 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x0f, 0xff);
81 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x10, 0x33);
82 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x11, 0x6f);
83 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x12, 0x6e);
84 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x13, 0xa6);
85 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x14, 0x80);
86 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x15, 0x02);
87 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x16, 0x38);
88 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x17, 0xd3);
89 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x3a);
90 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x19, 0xba);
91 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1a, 0xcc);
92 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1b, 0x01);
93
94 mipi_dsi_dcs_nop_multi(ctx: dsi_ctx);
95
96 mipi_dsi_msleep(dsi_ctx, 32);
97
98 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x38);
99 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x18, 0x13);
100 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xd1);
101 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd3, 0x00);
102 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd0, 0x00);
103 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd2, 0x00);
104 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xd4, 0x00);
105 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xb4, 0x01);
106 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0xf9);
107 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x00, 0xaf);
108 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x1d, 0x37);
109 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x44, 0x0a, 0x7b);
110 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfe, 0x00);
111 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xfa, 0x01);
112 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0xc2, 0x08);
113 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x35, 0x00);
114 mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x51, 0x05, 0x42);
115
116 mipi_dsi_dcs_exit_sleep_mode_multi(ctx: dsi_ctx);
117 mipi_dsi_msleep(dsi_ctx, 100);
118 mipi_dsi_dcs_set_display_on_multi(ctx: dsi_ctx);
119}
120
121static int rm692e5_disable(struct drm_panel *panel)
122{
123 struct rm692e5_panel *ctx = to_rm692e5_panel(panel);
124 struct mipi_dsi_device *dsi = ctx->dsi;
125 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
126
127 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
128
129 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
130
131 mipi_dsi_dcs_set_display_off_multi(ctx: &dsi_ctx);
132
133 mipi_dsi_dcs_enter_sleep_mode_multi(ctx: &dsi_ctx);
134
135 mipi_dsi_msleep(&dsi_ctx, 100);
136
137 return dsi_ctx.accum_err;
138}
139
140static int rm692e5_prepare(struct drm_panel *panel)
141{
142 struct rm692e5_panel *ctx = to_rm692e5_panel(panel);
143 struct drm_dsc_picture_parameter_set pps;
144 struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
145
146 dsi_ctx.accum_err = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), consumers: ctx->supplies);
147 if (dsi_ctx.accum_err)
148 return dsi_ctx.accum_err;
149
150 rm692e5_reset(ctx);
151
152 rm692e5_on(dsi_ctx: &dsi_ctx);
153
154 drm_dsc_pps_payload_pack(pps_sdp: &pps, dsc_cfg: &ctx->dsc);
155
156 mipi_dsi_picture_parameter_set_multi(ctx: &dsi_ctx, pps: &pps);
157 mipi_dsi_compression_mode_ext_multi(ctx: &dsi_ctx, enable: true, algo: MIPI_DSI_COMPRESSION_DSC, pps_selector: 0);
158 mipi_dsi_msleep(&dsi_ctx, 28);
159
160 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x40);
161
162 /* 0x05 -> 90Hz, 0x00 -> 60Hz */
163 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xbd, 0x05);
164
165 mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
166
167 if (dsi_ctx.accum_err) {
168 gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1);
169 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), consumers: ctx->supplies);
170 }
171
172 return dsi_ctx.accum_err;
173}
174
175static int rm692e5_unprepare(struct drm_panel *panel)
176{
177 struct rm692e5_panel *ctx = to_rm692e5_panel(panel);
178
179 gpiod_set_value_cansleep(desc: ctx->reset_gpio, value: 1);
180 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), consumers: ctx->supplies);
181
182 return 0;
183}
184
185static const struct drm_display_mode rm692e5_mode = {
186 .clock = (1224 + 32 + 8 + 8) * (2700 + 8 + 2 + 8) * 90 / 1000,
187 .hdisplay = 1224,
188 .hsync_start = 1224 + 32,
189 .hsync_end = 1224 + 32 + 8,
190 .htotal = 1224 + 32 + 8 + 8,
191 .vdisplay = 2700,
192 .vsync_start = 2700 + 8,
193 .vsync_end = 2700 + 8 + 2,
194 .vtotal = 2700 + 8 + 2 + 8,
195 .width_mm = 68,
196 .height_mm = 150,
197};
198
199static int rm692e5_get_modes(struct drm_panel *panel,
200 struct drm_connector *connector)
201{
202 struct drm_display_mode *mode;
203
204 mode = drm_mode_duplicate(dev: connector->dev, mode: &rm692e5_mode);
205 if (!mode)
206 return -ENOMEM;
207
208 drm_mode_set_name(mode);
209
210 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
211 connector->display_info.width_mm = mode->width_mm;
212 connector->display_info.height_mm = mode->height_mm;
213 drm_mode_probed_add(connector, mode);
214
215 return 1;
216}
217
218static const struct drm_panel_funcs rm692e5_panel_funcs = {
219 .prepare = rm692e5_prepare,
220 .unprepare = rm692e5_unprepare,
221 .disable = rm692e5_disable,
222 .get_modes = rm692e5_get_modes,
223};
224
225static int rm692e5_bl_update_status(struct backlight_device *bl)
226{
227 struct mipi_dsi_device *dsi = bl_get_data(bl_dev: bl);
228 u16 brightness = backlight_get_brightness(bd: bl);
229 int ret;
230
231 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
232
233 ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
234 if (ret < 0)
235 return ret;
236
237 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
238
239 return 0;
240}
241
242static int rm692e5_bl_get_brightness(struct backlight_device *bl)
243{
244 struct mipi_dsi_device *dsi = bl_get_data(bl_dev: bl);
245 u16 brightness;
246 int ret;
247
248 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
249
250 ret = mipi_dsi_dcs_get_display_brightness_large(dsi, brightness: &brightness);
251 if (ret < 0)
252 return ret;
253
254 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
255
256 return brightness;
257}
258
259static const struct backlight_ops rm692e5_bl_ops = {
260 .update_status = rm692e5_bl_update_status,
261 .get_brightness = rm692e5_bl_get_brightness,
262};
263
264static struct backlight_device *
265rm692e5_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 = 4095,
271 .max_brightness = 4095,
272 };
273
274 return devm_backlight_device_register(dev, name: dev_name(dev), parent: dev, devdata: dsi,
275 ops: &rm692e5_bl_ops, props: &props);
276}
277
278static int rm692e5_probe(struct mipi_dsi_device *dsi)
279{
280 struct device *dev = &dsi->dev;
281 struct rm692e5_panel *ctx;
282 int ret;
283
284 ctx = devm_kzalloc(dev, size: sizeof(*ctx), GFP_KERNEL);
285 if (!ctx)
286 return -ENOMEM;
287
288 ctx->supplies[0].supply = "vddio";
289 ctx->supplies[1].supply = "dvdd";
290 ctx->supplies[2].supply = "vci";
291 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
292 consumers: ctx->supplies);
293 if (ret < 0)
294 return dev_err_probe(dev, err: ret, fmt: "Failed to get regulators\n");
295
296 ctx->reset_gpio = devm_gpiod_get(dev, con_id: "reset", flags: GPIOD_OUT_HIGH);
297 if (IS_ERR(ptr: ctx->reset_gpio))
298 return dev_err_probe(dev, err: PTR_ERR(ptr: ctx->reset_gpio),
299 fmt: "Failed to get reset-gpios\n");
300
301 ctx->dsi = dsi;
302 mipi_dsi_set_drvdata(dsi, data: ctx);
303
304 dsi->lanes = 4;
305 dsi->format = MIPI_DSI_FMT_RGB888;
306 dsi->mode_flags = MIPI_DSI_MODE_NO_EOT_PACKET |
307 MIPI_DSI_CLOCK_NON_CONTINUOUS;
308
309 drm_panel_init(panel: &ctx->panel, dev, funcs: &rm692e5_panel_funcs,
310 DRM_MODE_CONNECTOR_DSI);
311 ctx->panel.prepare_prev_first = true;
312
313 ctx->panel.backlight = rm692e5_create_backlight(dsi);
314 if (IS_ERR(ptr: ctx->panel.backlight))
315 return dev_err_probe(dev, err: PTR_ERR(ptr: ctx->panel.backlight),
316 fmt: "Failed to create backlight\n");
317
318 drm_panel_add(panel: &ctx->panel);
319
320 /* This panel only supports DSC; unconditionally enable it */
321 dsi->dsc = &ctx->dsc;
322
323 /* TODO: Pass slice_per_pkt = 2 */
324 ctx->dsc.dsc_version_major = 1;
325 ctx->dsc.dsc_version_minor = 1;
326 ctx->dsc.slice_height = 60;
327 ctx->dsc.slice_width = 1224;
328
329 ctx->dsc.slice_count = 1224 / ctx->dsc.slice_width;
330 ctx->dsc.bits_per_component = 8;
331 ctx->dsc.bits_per_pixel = 8 << 4; /* 4 fractional bits */
332 ctx->dsc.block_pred_enable = true;
333
334 ret = mipi_dsi_attach(dsi);
335 if (ret < 0) {
336 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
337 drm_panel_remove(panel: &ctx->panel);
338 return ret;
339 }
340
341 return 0;
342}
343
344static void rm692e5_remove(struct mipi_dsi_device *dsi)
345{
346 struct rm692e5_panel *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 from DSI host: %d\n", ret);
352
353 drm_panel_remove(panel: &ctx->panel);
354}
355
356static const struct of_device_id rm692e5_of_match[] = {
357 { .compatible = "fairphone,fp5-rm692e5-boe" },
358 { }
359};
360MODULE_DEVICE_TABLE(of, rm692e5_of_match);
361
362static struct mipi_dsi_driver rm692e5_driver = {
363 .probe = rm692e5_probe,
364 .remove = rm692e5_remove,
365 .driver = {
366 .name = "panel-rm692e5-boe-amoled",
367 .of_match_table = rm692e5_of_match,
368 },
369};
370module_mipi_dsi_driver(rm692e5_driver);
371
372MODULE_DESCRIPTION("DRM driver for rm692e5-equipped DSI panels");
373MODULE_LICENSE("GPL");
374

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source code of linux/drivers/gpu/drm/panel/panel-raydium-rm692e5.c