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914b6f29 DB |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* Copyright (c) 2021 Linaro Ltd. | |
3 | * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: | |
4 | * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. | |
5 | */ | |
6 | ||
7 | #include <linux/delay.h> | |
8 | #include <linux/gpio/consumer.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/of.h> | |
11 | #include <linux/regulator/consumer.h> | |
12 | ||
13 | #include <video/mipi_display.h> | |
14 | ||
15 | #include <drm/drm_mipi_dsi.h> | |
16 | #include <drm/drm_modes.h> | |
17 | #include <drm/drm_panel.h> | |
18 | ||
19 | struct sharp_ls060 { | |
20 | struct drm_panel panel; | |
21 | struct mipi_dsi_device *dsi; | |
22 | struct regulator *vddi_supply; | |
23 | struct regulator *vddh_supply; | |
24 | struct regulator *avdd_supply; | |
25 | struct regulator *avee_supply; | |
26 | struct gpio_desc *reset_gpio; | |
27 | bool prepared; | |
28 | }; | |
29 | ||
30 | static inline struct sharp_ls060 *to_sharp_ls060(struct drm_panel *panel) | |
31 | { | |
32 | return container_of(panel, struct sharp_ls060, panel); | |
33 | } | |
34 | ||
35 | #define dsi_dcs_write_seq(dsi, seq...) ({ \ | |
36 | static const u8 d[] = { seq }; \ | |
37 | \ | |
38 | mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \ | |
39 | }) | |
40 | ||
41 | static void sharp_ls060_reset(struct sharp_ls060 *ctx) | |
42 | { | |
43 | gpiod_set_value_cansleep(ctx->reset_gpio, 0); | |
44 | usleep_range(10000, 11000); | |
45 | gpiod_set_value_cansleep(ctx->reset_gpio, 1); | |
46 | usleep_range(10000, 11000); | |
47 | gpiod_set_value_cansleep(ctx->reset_gpio, 0); | |
48 | usleep_range(10000, 11000); | |
49 | } | |
50 | ||
51 | static int sharp_ls060_on(struct sharp_ls060 *ctx) | |
52 | { | |
53 | struct mipi_dsi_device *dsi = ctx->dsi; | |
54 | struct device *dev = &dsi->dev; | |
55 | int ret; | |
56 | ||
57 | dsi->mode_flags |= MIPI_DSI_MODE_LPM; | |
58 | ||
59 | ret = dsi_dcs_write_seq(dsi, 0xbb, 0x13); | |
60 | if (ret < 0) { | |
61 | dev_err(dev, "Failed to send command: %d\n", ret); | |
62 | return ret; | |
63 | } | |
64 | ||
65 | ret = dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START); | |
66 | if (ret < 0) { | |
67 | dev_err(dev, "Failed to send command: %d\n", ret); | |
68 | return ret; | |
69 | } | |
70 | ||
71 | ret = mipi_dsi_dcs_exit_sleep_mode(dsi); | |
72 | if (ret < 0) { | |
73 | dev_err(dev, "Failed to exit sleep mode: %d\n", ret); | |
74 | return ret; | |
75 | } | |
76 | msleep(120); | |
77 | ||
78 | ret = mipi_dsi_dcs_set_display_on(dsi); | |
79 | if (ret < 0) { | |
80 | dev_err(dev, "Failed to set display on: %d\n", ret); | |
81 | return ret; | |
82 | } | |
83 | msleep(50); | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | static int sharp_ls060_off(struct sharp_ls060 *ctx) | |
89 | { | |
90 | struct mipi_dsi_device *dsi = ctx->dsi; | |
91 | struct device *dev = &dsi->dev; | |
92 | int ret; | |
93 | ||
94 | dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; | |
95 | ||
96 | ret = mipi_dsi_dcs_set_display_off(dsi); | |
97 | if (ret < 0) { | |
98 | dev_err(dev, "Failed to set display off: %d\n", ret); | |
99 | return ret; | |
100 | } | |
101 | usleep_range(2000, 3000); | |
102 | ||
103 | ret = mipi_dsi_dcs_enter_sleep_mode(dsi); | |
104 | if (ret < 0) { | |
105 | dev_err(dev, "Failed to enter sleep mode: %d\n", ret); | |
106 | return ret; | |
107 | } | |
108 | msleep(121); | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | static int sharp_ls060_prepare(struct drm_panel *panel) | |
114 | { | |
115 | struct sharp_ls060 *ctx = to_sharp_ls060(panel); | |
116 | struct device *dev = &ctx->dsi->dev; | |
117 | int ret; | |
118 | ||
119 | if (ctx->prepared) | |
120 | return 0; | |
121 | ||
122 | ret = regulator_enable(ctx->vddi_supply); | |
123 | if (ret < 0) | |
124 | return ret; | |
125 | ||
126 | ret = regulator_enable(ctx->avdd_supply); | |
127 | if (ret < 0) | |
128 | goto err_avdd; | |
129 | ||
130 | usleep_range(1000, 2000); | |
131 | ||
132 | ret = regulator_enable(ctx->avee_supply); | |
133 | if (ret < 0) | |
134 | goto err_avee; | |
135 | ||
136 | usleep_range(10000, 11000); | |
137 | ||
138 | ret = regulator_enable(ctx->vddh_supply); | |
139 | if (ret < 0) | |
140 | goto err_vddh; | |
141 | ||
142 | usleep_range(10000, 11000); | |
143 | ||
144 | sharp_ls060_reset(ctx); | |
145 | ||
146 | ret = sharp_ls060_on(ctx); | |
147 | if (ret < 0) { | |
148 | dev_err(dev, "Failed to initialize panel: %d\n", ret); | |
149 | goto err_on; | |
150 | } | |
151 | ||
152 | ctx->prepared = true; | |
153 | ||
154 | return 0; | |
155 | ||
156 | err_on: | |
157 | regulator_disable(ctx->vddh_supply); | |
158 | ||
159 | usleep_range(10000, 11000); | |
160 | ||
161 | err_vddh: | |
162 | regulator_disable(ctx->avee_supply); | |
163 | ||
164 | err_avee: | |
165 | regulator_disable(ctx->avdd_supply); | |
166 | ||
167 | gpiod_set_value_cansleep(ctx->reset_gpio, 1); | |
168 | ||
169 | err_avdd: | |
170 | regulator_disable(ctx->vddi_supply); | |
171 | ||
172 | return ret; | |
173 | } | |
174 | ||
175 | static int sharp_ls060_unprepare(struct drm_panel *panel) | |
176 | { | |
177 | struct sharp_ls060 *ctx = to_sharp_ls060(panel); | |
178 | struct device *dev = &ctx->dsi->dev; | |
179 | int ret; | |
180 | ||
181 | if (!ctx->prepared) | |
182 | return 0; | |
183 | ||
184 | ret = sharp_ls060_off(ctx); | |
185 | if (ret < 0) | |
186 | dev_err(dev, "Failed to un-initialize panel: %d\n", ret); | |
187 | ||
188 | regulator_disable(ctx->vddh_supply); | |
189 | ||
190 | usleep_range(10000, 11000); | |
191 | ||
192 | regulator_disable(ctx->avee_supply); | |
193 | regulator_disable(ctx->avdd_supply); | |
194 | ||
195 | gpiod_set_value_cansleep(ctx->reset_gpio, 1); | |
196 | ||
197 | regulator_disable(ctx->vddi_supply); | |
198 | ||
199 | ctx->prepared = false; | |
200 | return 0; | |
201 | } | |
202 | ||
203 | static const struct drm_display_mode sharp_ls060_mode = { | |
204 | .clock = (1080 + 96 + 16 + 64) * (1920 + 4 + 1 + 16) * 60 / 1000, | |
205 | .hdisplay = 1080, | |
206 | .hsync_start = 1080 + 96, | |
207 | .hsync_end = 1080 + 96 + 16, | |
208 | .htotal = 1080 + 96 + 16 + 64, | |
209 | .vdisplay = 1920, | |
210 | .vsync_start = 1920 + 4, | |
211 | .vsync_end = 1920 + 4 + 1, | |
212 | .vtotal = 1920 + 4 + 1 + 16, | |
213 | .width_mm = 75, | |
214 | .height_mm = 132, | |
215 | }; | |
216 | ||
217 | static int sharp_ls060_get_modes(struct drm_panel *panel, | |
218 | struct drm_connector *connector) | |
219 | { | |
220 | struct drm_display_mode *mode; | |
221 | ||
222 | mode = drm_mode_duplicate(connector->dev, &sharp_ls060_mode); | |
223 | if (!mode) | |
224 | return -ENOMEM; | |
225 | ||
226 | drm_mode_set_name(mode); | |
227 | ||
228 | mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; | |
229 | connector->display_info.width_mm = mode->width_mm; | |
230 | connector->display_info.height_mm = mode->height_mm; | |
231 | drm_mode_probed_add(connector, mode); | |
232 | ||
233 | return 1; | |
234 | } | |
235 | ||
236 | static const struct drm_panel_funcs sharp_ls060_panel_funcs = { | |
237 | .prepare = sharp_ls060_prepare, | |
238 | .unprepare = sharp_ls060_unprepare, | |
239 | .get_modes = sharp_ls060_get_modes, | |
240 | }; | |
241 | ||
242 | static int sharp_ls060_probe(struct mipi_dsi_device *dsi) | |
243 | { | |
244 | struct device *dev = &dsi->dev; | |
245 | struct sharp_ls060 *ctx; | |
246 | int ret; | |
247 | ||
248 | ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); | |
249 | if (!ctx) | |
250 | return -ENOMEM; | |
251 | ||
252 | ctx->vddi_supply = devm_regulator_get(dev, "vddi"); | |
253 | if (IS_ERR(ctx->vddi_supply)) | |
254 | return PTR_ERR(ctx->vddi_supply); | |
255 | ||
256 | ctx->vddh_supply = devm_regulator_get(dev, "vddh"); | |
257 | if (IS_ERR(ctx->vddh_supply)) | |
258 | return PTR_ERR(ctx->vddh_supply); | |
259 | ||
260 | ctx->avdd_supply = devm_regulator_get(dev, "avdd"); | |
261 | if (IS_ERR(ctx->avdd_supply)) | |
262 | return PTR_ERR(ctx->avdd_supply); | |
263 | ||
264 | ctx->avee_supply = devm_regulator_get(dev, "avee"); | |
265 | if (IS_ERR(ctx->avee_supply)) | |
266 | return PTR_ERR(ctx->avee_supply); | |
267 | ||
268 | ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); | |
269 | if (IS_ERR(ctx->reset_gpio)) | |
270 | return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), | |
271 | "Failed to get reset-gpios\n"); | |
272 | ||
273 | ctx->dsi = dsi; | |
274 | mipi_dsi_set_drvdata(dsi, ctx); | |
275 | ||
276 | dsi->lanes = 4; | |
277 | dsi->format = MIPI_DSI_FMT_RGB888; | |
278 | dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | | |
279 | MIPI_DSI_MODE_NO_EOT_PACKET | | |
280 | MIPI_DSI_CLOCK_NON_CONTINUOUS; | |
281 | ||
282 | drm_panel_init(&ctx->panel, dev, &sharp_ls060_panel_funcs, | |
283 | DRM_MODE_CONNECTOR_DSI); | |
284 | ||
285 | ret = drm_panel_of_backlight(&ctx->panel); | |
286 | if (ret) | |
287 | return dev_err_probe(dev, ret, "Failed to get backlight\n"); | |
288 | ||
289 | drm_panel_add(&ctx->panel); | |
290 | ||
291 | ret = mipi_dsi_attach(dsi); | |
292 | if (ret < 0) { | |
293 | dev_err(dev, "Failed to attach to DSI host: %d\n", ret); | |
294 | drm_panel_remove(&ctx->panel); | |
295 | return ret; | |
296 | } | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int sharp_ls060_remove(struct mipi_dsi_device *dsi) | |
302 | { | |
303 | struct sharp_ls060 *ctx = mipi_dsi_get_drvdata(dsi); | |
304 | int ret; | |
305 | ||
306 | ret = mipi_dsi_detach(dsi); | |
307 | if (ret < 0) | |
308 | dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); | |
309 | ||
310 | drm_panel_remove(&ctx->panel); | |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
315 | static const struct of_device_id sharp_ls060t1sx01_of_match[] = { | |
316 | { .compatible = "sharp,ls060t1sx01" }, | |
317 | { /* sentinel */ } | |
318 | }; | |
319 | MODULE_DEVICE_TABLE(of, sharp_ls060t1sx01_of_match); | |
320 | ||
321 | static struct mipi_dsi_driver sharp_ls060_driver = { | |
322 | .probe = sharp_ls060_probe, | |
323 | .remove = sharp_ls060_remove, | |
324 | .driver = { | |
325 | .name = "panel-sharp-ls060t1sx01", | |
326 | .of_match_table = sharp_ls060t1sx01_of_match, | |
327 | }, | |
328 | }; | |
329 | module_mipi_dsi_driver(sharp_ls060_driver); | |
330 | ||
331 | MODULE_AUTHOR("Dmitry Baryshkov <dmitry.baryshkov@linaro.org>"); | |
332 | MODULE_DESCRIPTION("DRM driver for Sharp LS060T1SX01 1080p video mode dsi panel"); | |
333 | MODULE_LICENSE("GPL v2"); |