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1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (c) 2023, Linaro Limited
3
4#include <linux/backlight.h>
5#include <linux/delay.h>
6#include <linux/gpio/consumer.h>
7#include <linux/regulator/consumer.h>
8#include <linux/module.h>
9#include <linux/of.h>
10
11#include <drm/display/drm_dsc.h>
12#include <drm/drm_mipi_dsi.h>
13#include <drm/drm_modes.h>
14#include <drm/drm_panel.h>
15
16#include <video/mipi_display.h>
17
18struct visionox_vtdr6130 {
19 struct drm_panel panel;
20 struct mipi_dsi_device *dsi;
21 struct gpio_desc *reset_gpio;
22 struct regulator_bulk_data *supplies;
23};
24
25static const struct regulator_bulk_data visionox_vtdr6130_supplies[] = {
26 { .supply = "vddio" },
27 { .supply = "vci" },
28 { .supply = "vdd" },
29};
30
31static inline struct visionox_vtdr6130 *to_visionox_vtdr6130(struct drm_panel *panel)
32{
33 return container_of(panel, struct visionox_vtdr6130, panel);
34}
35
36static void visionox_vtdr6130_reset(struct visionox_vtdr6130 *ctx)
37{
38 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
39 usleep_range(10000, 11000);
40 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
41 usleep_range(10000, 11000);
42 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
43 usleep_range(10000, 11000);
44}
45
46static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx)
47{
48 struct mipi_dsi_device *dsi = ctx->dsi;
49 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
50
51 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
52
53 mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
54
55 mipi_dsi_dcs_write_seq_multi(&dsi_ctx,
56 MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
57 mipi_dsi_dcs_write_seq_multi(&dsi_ctx,
58 MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0x00,
59 0x00);
60 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x59, 0x09);
61 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6c, 0x01);
62 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6d, 0x00);
63 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6f, 0x01);
64 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x70, 0x12, 0x00, 0x00, 0xab,
65 0x30, 0x80, 0x09, 0x60, 0x04, 0x38, 0x00,
66 0x28, 0x02, 0x1c, 0x02, 0x1c, 0x02, 0x00,
67 0x02, 0x0e, 0x00, 0x20, 0x03, 0xdd, 0x00,
68 0x07, 0x00, 0x0c, 0x02, 0x77, 0x02, 0x8b,
69 0x18, 0x00, 0x10, 0xf0, 0x07, 0x10, 0x20,
70 0x00, 0x06, 0x0f, 0x0f, 0x33, 0x0e, 0x1c,
71 0x2a, 0x38, 0x46, 0x54, 0x62, 0x69, 0x70,
72 0x77, 0x79, 0x7b, 0x7d, 0x7e, 0x02, 0x02,
73 0x22, 0x00, 0x2a, 0x40, 0x2a, 0xbe, 0x3a,
74 0xfc, 0x3a, 0xfa, 0x3a, 0xf8, 0x3b, 0x38,
75 0x3b, 0x78, 0x3b, 0xb6, 0x4b, 0xb6, 0x4b,
76 0xf4, 0x4b, 0xf4, 0x6c, 0x34, 0x84, 0x74,
77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
78 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x10);
79 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x01, 0x38, 0x00, 0x14,
80 0x00, 0x1c, 0x00, 0x01, 0x66, 0x00, 0x14,
81 0x00, 0x14, 0x00, 0x01, 0x66, 0x00, 0x14,
82 0x05, 0xcc, 0x00);
83 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x13);
84 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xce, 0x09, 0x11, 0x09, 0x11,
85 0x08, 0xc1, 0x07, 0xfa, 0x05, 0xa4, 0x00,
86 0x3c, 0x00, 0x34, 0x00, 0x24, 0x00, 0x0c,
87 0x00, 0x0c, 0x04, 0x00, 0x35);
88 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x14);
89 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x03, 0x33);
90 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x00, 0x33, 0x00, 0x00,
91 0x00, 0x3e, 0x00, 0x00, 0x00, 0x3e, 0x00,
92 0x00);
93 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb5, 0x00, 0x09, 0x09, 0x09,
94 0x09, 0x09, 0x09, 0x06, 0x01);
95 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x00, 0x00, 0x08, 0x09,
96 0x09, 0x09);
97 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc, 0x10, 0x00, 0x00, 0x06,
98 0x11, 0x09, 0x3b, 0x09, 0x47, 0x09, 0x47,
99 0x00);
100 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe, 0x10, 0x10, 0x00, 0x08,
101 0x22, 0x09, 0x19, 0x09, 0x25, 0x09, 0x25,
102 0x00);
103 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x80);
104 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x14);
105 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfa, 0x08, 0x08, 0x08);
106 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x81);
107 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x05);
108 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x0f);
109 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x00);
110 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x82);
111 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf9, 0x00);
112 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x51, 0x83);
113 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x04);
114 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf8, 0x00);
115 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x00);
116 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x01);
117 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4, 0x9a);
118 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x00);
119
120 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
121 mipi_dsi_msleep(&dsi_ctx, 120);
122
123 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
124 mipi_dsi_msleep(&dsi_ctx, 20);
125
126 return dsi_ctx.accum_err;
127}
128
129static void visionox_vtdr6130_off(struct visionox_vtdr6130 *ctx)
130{
131 struct mipi_dsi_device *dsi = ctx->dsi;
132 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
133
134 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
135
136 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
137 mipi_dsi_msleep(&dsi_ctx, 20);
138
139 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
140 mipi_dsi_msleep(&dsi_ctx, 120);
141}
142
143static int visionox_vtdr6130_prepare(struct drm_panel *panel)
144{
145 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);
146 int ret;
147
148 ret = regulator_bulk_enable(ARRAY_SIZE(visionox_vtdr6130_supplies),
149 ctx->supplies);
150 if (ret < 0)
151 return ret;
152
153 visionox_vtdr6130_reset(ctx);
154
155 ret = visionox_vtdr6130_on(ctx);
156 if (ret < 0) {
157 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
158 regulator_bulk_disable(ARRAY_SIZE(visionox_vtdr6130_supplies),
159 ctx->supplies);
160 return ret;
161 }
162
163 return 0;
164}
165
166static int visionox_vtdr6130_unprepare(struct drm_panel *panel)
167{
168 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);
169
170 visionox_vtdr6130_off(ctx);
171
172 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
173
174 regulator_bulk_disable(ARRAY_SIZE(visionox_vtdr6130_supplies),
175 ctx->supplies);
176
177 return 0;
178}
179
180static const struct drm_display_mode visionox_vtdr6130_mode = {
181 .clock = (1080 + 20 + 2 + 20) * (2400 + 20 + 2 + 18) * 144 / 1000,
182 .hdisplay = 1080,
183 .hsync_start = 1080 + 20,
184 .hsync_end = 1080 + 20 + 2,
185 .htotal = 1080 + 20 + 2 + 20,
186 .vdisplay = 2400,
187 .vsync_start = 2400 + 20,
188 .vsync_end = 2400 + 20 + 2,
189 .vtotal = 2400 + 20 + 2 + 18,
190 .width_mm = 71,
191 .height_mm = 157,
192};
193
194static int visionox_vtdr6130_get_modes(struct drm_panel *panel,
195 struct drm_connector *connector)
196{
197 struct drm_display_mode *mode;
198
199 mode = drm_mode_duplicate(connector->dev, &visionox_vtdr6130_mode);
200 if (!mode)
201 return -ENOMEM;
202
203 drm_mode_set_name(mode);
204
205 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
206 connector->display_info.width_mm = mode->width_mm;
207 connector->display_info.height_mm = mode->height_mm;
208 drm_mode_probed_add(connector, mode);
209
210 return 1;
211}
212
213static const struct drm_panel_funcs visionox_vtdr6130_panel_funcs = {
214 .prepare = visionox_vtdr6130_prepare,
215 .unprepare = visionox_vtdr6130_unprepare,
216 .get_modes = visionox_vtdr6130_get_modes,
217};
218
219static int visionox_vtdr6130_bl_update_status(struct backlight_device *bl)
220{
221 struct mipi_dsi_device *dsi = bl_get_data(bl);
222 u16 brightness = backlight_get_brightness(bl);
223
224 return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
225}
226
227static const struct backlight_ops visionox_vtdr6130_bl_ops = {
228 .update_status = visionox_vtdr6130_bl_update_status,
229};
230
231static struct backlight_device *
232visionox_vtdr6130_create_backlight(struct mipi_dsi_device *dsi)
233{
234 struct device *dev = &dsi->dev;
235 const struct backlight_properties props = {
236 .type = BACKLIGHT_RAW,
237 .brightness = 4095,
238 .max_brightness = 4095,
239 };
240
241 return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
242 &visionox_vtdr6130_bl_ops, &props);
243}
244
245static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
246{
247 struct device *dev = &dsi->dev;
248 struct visionox_vtdr6130 *ctx;
249 int ret;
250
251 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
252 if (!ctx)
253 return -ENOMEM;
254
255 ret = devm_regulator_bulk_get_const(&dsi->dev,
256 ARRAY_SIZE(visionox_vtdr6130_supplies),
257 visionox_vtdr6130_supplies,
258 &ctx->supplies);
259 if (ret < 0)
260 return ret;
261
262 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
263 if (IS_ERR(ctx->reset_gpio))
264 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
265 "Failed to get reset-gpios\n");
266
267 ctx->dsi = dsi;
268 mipi_dsi_set_drvdata(dsi, ctx);
269
270 dsi->lanes = 4;
271 dsi->format = MIPI_DSI_FMT_RGB888;
272 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |
273 MIPI_DSI_CLOCK_NON_CONTINUOUS;
274 ctx->panel.prepare_prev_first = true;
275
276 drm_panel_init(&ctx->panel, dev, &visionox_vtdr6130_panel_funcs,
277 DRM_MODE_CONNECTOR_DSI);
278
279 ctx->panel.backlight = visionox_vtdr6130_create_backlight(dsi);
280 if (IS_ERR(ctx->panel.backlight))
281 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
282 "Failed to create backlight\n");
283
284 drm_panel_add(&ctx->panel);
285
286 ret = mipi_dsi_attach(dsi);
287 if (ret < 0) {
288 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
289 drm_panel_remove(&ctx->panel);
290 return ret;
291 }
292
293 return 0;
294}
295
296static void visionox_vtdr6130_remove(struct mipi_dsi_device *dsi)
297{
298 struct visionox_vtdr6130 *ctx = mipi_dsi_get_drvdata(dsi);
299 int ret;
300
301 ret = mipi_dsi_detach(dsi);
302 if (ret < 0)
303 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
304
305 drm_panel_remove(&ctx->panel);
306}
307
308static const struct of_device_id visionox_vtdr6130_of_match[] = {
309 { .compatible = "visionox,vtdr6130" },
310 { /* sentinel */ }
311};
312MODULE_DEVICE_TABLE(of, visionox_vtdr6130_of_match);
313
314static struct mipi_dsi_driver visionox_vtdr6130_driver = {
315 .probe = visionox_vtdr6130_probe,
316 .remove = visionox_vtdr6130_remove,
317 .driver = {
318 .name = "panel-visionox-vtdr6130",
319 .of_match_table = visionox_vtdr6130_of_match,
320 },
321};
322module_mipi_dsi_driver(visionox_vtdr6130_driver);
323
324MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>");
325MODULE_DESCRIPTION("Panel driver for the Visionox VTDR6130 AMOLED DSI panel");
326MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (c) 2023, Linaro Limited
3
4#include <linux/backlight.h>
5#include <linux/delay.h>
6#include <linux/gpio/consumer.h>
7#include <linux/regulator/consumer.h>
8#include <linux/module.h>
9#include <linux/of.h>
10
11#include <drm/display/drm_dsc.h>
12#include <drm/drm_mipi_dsi.h>
13#include <drm/drm_modes.h>
14#include <drm/drm_panel.h>
15
16#include <video/mipi_display.h>
17
18struct visionox_vtdr6130 {
19 struct drm_panel panel;
20 struct mipi_dsi_device *dsi;
21 struct gpio_desc *reset_gpio;
22 struct regulator_bulk_data supplies[3];
23};
24
25static inline struct visionox_vtdr6130 *to_visionox_vtdr6130(struct drm_panel *panel)
26{
27 return container_of(panel, struct visionox_vtdr6130, panel);
28}
29
30static void visionox_vtdr6130_reset(struct visionox_vtdr6130 *ctx)
31{
32 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
33 usleep_range(10000, 11000);
34 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
35 usleep_range(10000, 11000);
36 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
37 usleep_range(10000, 11000);
38}
39
40static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx)
41{
42 struct mipi_dsi_device *dsi = ctx->dsi;
43 struct device *dev = &dsi->dev;
44 int ret;
45
46 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
47
48 ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
49 if (ret)
50 return ret;
51
52 mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
53 mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0x00, 0x00);
54 mipi_dsi_dcs_write_seq(dsi, 0x59, 0x09);
55 mipi_dsi_dcs_write_seq(dsi, 0x6c, 0x01);
56 mipi_dsi_dcs_write_seq(dsi, 0x6d, 0x00);
57 mipi_dsi_dcs_write_seq(dsi, 0x6f, 0x01);
58 mipi_dsi_dcs_write_seq(dsi, 0x70,
59 0x12, 0x00, 0x00, 0xab, 0x30, 0x80, 0x09, 0x60, 0x04,
60 0x38, 0x00, 0x28, 0x02, 0x1c, 0x02, 0x1c, 0x02, 0x00,
61 0x02, 0x0e, 0x00, 0x20, 0x03, 0xdd, 0x00, 0x07, 0x00,
62 0x0c, 0x02, 0x77, 0x02, 0x8b, 0x18, 0x00, 0x10, 0xf0,
63 0x07, 0x10, 0x20, 0x00, 0x06, 0x0f, 0x0f, 0x33, 0x0e,
64 0x1c, 0x2a, 0x38, 0x46, 0x54, 0x62, 0x69, 0x70, 0x77,
65 0x79, 0x7b, 0x7d, 0x7e, 0x02, 0x02, 0x22, 0x00, 0x2a,
66 0x40, 0x2a, 0xbe, 0x3a, 0xfc, 0x3a, 0xfa, 0x3a, 0xf8,
67 0x3b, 0x38, 0x3b, 0x78, 0x3b, 0xb6, 0x4b, 0xb6, 0x4b,
68 0xf4, 0x4b, 0xf4, 0x6c, 0x34, 0x84, 0x74, 0x00, 0x00,
69 0x00, 0x00, 0x00, 0x00);
70 mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xaa, 0x10);
71 mipi_dsi_dcs_write_seq(dsi, 0xb1,
72 0x01, 0x38, 0x00, 0x14, 0x00, 0x1c, 0x00, 0x01, 0x66,
73 0x00, 0x14, 0x00, 0x14, 0x00, 0x01, 0x66, 0x00, 0x14,
74 0x05, 0xcc, 0x00);
75 mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xaa, 0x13);
76 mipi_dsi_dcs_write_seq(dsi, 0xce,
77 0x09, 0x11, 0x09, 0x11, 0x08, 0xc1, 0x07, 0xfa, 0x05,
78 0xa4, 0x00, 0x3c, 0x00, 0x34, 0x00, 0x24, 0x00, 0x0c,
79 0x00, 0x0c, 0x04, 0x00, 0x35);
80 mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xaa, 0x14);
81 mipi_dsi_dcs_write_seq(dsi, 0xb2, 0x03, 0x33);
82 mipi_dsi_dcs_write_seq(dsi, 0xb4,
83 0x00, 0x33, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00,
84 0x3e, 0x00, 0x00);
85 mipi_dsi_dcs_write_seq(dsi, 0xb5,
86 0x00, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x06, 0x01);
87 mipi_dsi_dcs_write_seq(dsi, 0xb9, 0x00, 0x00, 0x08, 0x09, 0x09, 0x09);
88 mipi_dsi_dcs_write_seq(dsi, 0xbc,
89 0x10, 0x00, 0x00, 0x06, 0x11, 0x09, 0x3b, 0x09, 0x47,
90 0x09, 0x47, 0x00);
91 mipi_dsi_dcs_write_seq(dsi, 0xbe,
92 0x10, 0x10, 0x00, 0x08, 0x22, 0x09, 0x19, 0x09, 0x25,
93 0x09, 0x25, 0x00);
94 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x5a, 0x80);
95 mipi_dsi_dcs_write_seq(dsi, 0x65, 0x14);
96 mipi_dsi_dcs_write_seq(dsi, 0xfa, 0x08, 0x08, 0x08);
97 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x5a, 0x81);
98 mipi_dsi_dcs_write_seq(dsi, 0x65, 0x05);
99 mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x0f);
100 mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xaa, 0x00);
101 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x5a, 0x82);
102 mipi_dsi_dcs_write_seq(dsi, 0xf9, 0x00);
103 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x51, 0x83);
104 mipi_dsi_dcs_write_seq(dsi, 0x65, 0x04);
105 mipi_dsi_dcs_write_seq(dsi, 0xf8, 0x00);
106 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x5a, 0x00);
107 mipi_dsi_dcs_write_seq(dsi, 0x65, 0x01);
108 mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x9a);
109 mipi_dsi_dcs_write_seq(dsi, 0xff, 0x5a, 0x00);
110
111 ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
112 if (ret < 0) {
113 dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
114 return ret;
115 }
116 msleep(120);
117
118 ret = mipi_dsi_dcs_set_display_on(dsi);
119 if (ret < 0) {
120 dev_err(dev, "Failed to set display on: %d\n", ret);
121 return ret;
122 }
123 msleep(20);
124
125 return 0;
126}
127
128static int visionox_vtdr6130_off(struct visionox_vtdr6130 *ctx)
129{
130 struct mipi_dsi_device *dsi = ctx->dsi;
131 struct device *dev = &dsi->dev;
132 int ret;
133
134 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
135
136 ret = mipi_dsi_dcs_set_display_off(dsi);
137 if (ret < 0) {
138 dev_err(dev, "Failed to set display off: %d\n", ret);
139 return ret;
140 }
141 msleep(20);
142
143 ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
144 if (ret < 0) {
145 dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
146 return ret;
147 }
148 msleep(120);
149
150 return 0;
151}
152
153static int visionox_vtdr6130_prepare(struct drm_panel *panel)
154{
155 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);
156 struct device *dev = &ctx->dsi->dev;
157 int ret;
158
159 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies),
160 ctx->supplies);
161 if (ret < 0)
162 return ret;
163
164 visionox_vtdr6130_reset(ctx);
165
166 ret = visionox_vtdr6130_on(ctx);
167 if (ret < 0) {
168 dev_err(dev, "Failed to initialize panel: %d\n", ret);
169 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
170 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
171 return ret;
172 }
173
174 return 0;
175}
176
177static int visionox_vtdr6130_unprepare(struct drm_panel *panel)
178{
179 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);
180 struct device *dev = &ctx->dsi->dev;
181 int ret;
182
183 ret = visionox_vtdr6130_off(ctx);
184 if (ret < 0)
185 dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
186
187 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
188
189 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
190
191 return 0;
192}
193
194static const struct drm_display_mode visionox_vtdr6130_mode = {
195 .clock = (1080 + 20 + 2 + 20) * (2400 + 20 + 2 + 18) * 144 / 1000,
196 .hdisplay = 1080,
197 .hsync_start = 1080 + 20,
198 .hsync_end = 1080 + 20 + 2,
199 .htotal = 1080 + 20 + 2 + 20,
200 .vdisplay = 2400,
201 .vsync_start = 2400 + 20,
202 .vsync_end = 2400 + 20 + 2,
203 .vtotal = 2400 + 20 + 2 + 18,
204 .width_mm = 71,
205 .height_mm = 157,
206};
207
208static int visionox_vtdr6130_get_modes(struct drm_panel *panel,
209 struct drm_connector *connector)
210{
211 struct drm_display_mode *mode;
212
213 mode = drm_mode_duplicate(connector->dev, &visionox_vtdr6130_mode);
214 if (!mode)
215 return -ENOMEM;
216
217 drm_mode_set_name(mode);
218
219 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
220 connector->display_info.width_mm = mode->width_mm;
221 connector->display_info.height_mm = mode->height_mm;
222 drm_mode_probed_add(connector, mode);
223
224 return 1;
225}
226
227static const struct drm_panel_funcs visionox_vtdr6130_panel_funcs = {
228 .prepare = visionox_vtdr6130_prepare,
229 .unprepare = visionox_vtdr6130_unprepare,
230 .get_modes = visionox_vtdr6130_get_modes,
231};
232
233static int visionox_vtdr6130_bl_update_status(struct backlight_device *bl)
234{
235 struct mipi_dsi_device *dsi = bl_get_data(bl);
236 u16 brightness = backlight_get_brightness(bl);
237
238 return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
239}
240
241static const struct backlight_ops visionox_vtdr6130_bl_ops = {
242 .update_status = visionox_vtdr6130_bl_update_status,
243};
244
245static struct backlight_device *
246visionox_vtdr6130_create_backlight(struct mipi_dsi_device *dsi)
247{
248 struct device *dev = &dsi->dev;
249 const struct backlight_properties props = {
250 .type = BACKLIGHT_RAW,
251 .brightness = 4095,
252 .max_brightness = 4095,
253 };
254
255 return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
256 &visionox_vtdr6130_bl_ops, &props);
257}
258
259static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
260{
261 struct device *dev = &dsi->dev;
262 struct visionox_vtdr6130 *ctx;
263 int ret;
264
265 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
266 if (!ctx)
267 return -ENOMEM;
268
269 ctx->supplies[0].supply = "vddio";
270 ctx->supplies[1].supply = "vci";
271 ctx->supplies[2].supply = "vdd";
272
273 ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),
274 ctx->supplies);
275 if (ret < 0)
276 return ret;
277
278 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
279 if (IS_ERR(ctx->reset_gpio))
280 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
281 "Failed to get reset-gpios\n");
282
283 ctx->dsi = dsi;
284 mipi_dsi_set_drvdata(dsi, ctx);
285
286 dsi->lanes = 4;
287 dsi->format = MIPI_DSI_FMT_RGB888;
288 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |
289 MIPI_DSI_CLOCK_NON_CONTINUOUS;
290 ctx->panel.prepare_prev_first = true;
291
292 drm_panel_init(&ctx->panel, dev, &visionox_vtdr6130_panel_funcs,
293 DRM_MODE_CONNECTOR_DSI);
294
295 ctx->panel.backlight = visionox_vtdr6130_create_backlight(dsi);
296 if (IS_ERR(ctx->panel.backlight))
297 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
298 "Failed to create backlight\n");
299
300 drm_panel_add(&ctx->panel);
301
302 ret = mipi_dsi_attach(dsi);
303 if (ret < 0) {
304 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
305 drm_panel_remove(&ctx->panel);
306 return ret;
307 }
308
309 return 0;
310}
311
312static void visionox_vtdr6130_remove(struct mipi_dsi_device *dsi)
313{
314 struct visionox_vtdr6130 *ctx = mipi_dsi_get_drvdata(dsi);
315 int ret;
316
317 ret = mipi_dsi_detach(dsi);
318 if (ret < 0)
319 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
320
321 drm_panel_remove(&ctx->panel);
322}
323
324static const struct of_device_id visionox_vtdr6130_of_match[] = {
325 { .compatible = "visionox,vtdr6130" },
326 { /* sentinel */ }
327};
328MODULE_DEVICE_TABLE(of, visionox_vtdr6130_of_match);
329
330static struct mipi_dsi_driver visionox_vtdr6130_driver = {
331 .probe = visionox_vtdr6130_probe,
332 .remove = visionox_vtdr6130_remove,
333 .driver = {
334 .name = "panel-visionox-vtdr6130",
335 .of_match_table = visionox_vtdr6130_of_match,
336 },
337};
338module_mipi_dsi_driver(visionox_vtdr6130_driver);
339
340MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>");
341MODULE_DESCRIPTION("Panel driver for the Visionox VTDR6130 AMOLED DSI panel");
342MODULE_LICENSE("GPL");