1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2022 Konrad Dybcio <konrad.dybcio@somainline.org>
4 *
5 * Generated with linux-mdss-dsi-panel-driver-generator with a
6 * substantial amount of manual adjustments.
7 *
8 * SONY Downstream kernel calls this one:
9 * - "JDI ID3" for Akari (XZ2)
10 * - "JDI ID4" for Apollo (XZ2 Compact)
11 */
12
13 #include <linux/delay.h>
14 #include <linux/gpio/consumer.h>
15 #include <linux/module.h>
16 #include <linux/of.h>
17 #include <linux/regulator/consumer.h>
18
19 #include <video/mipi_display.h>
20
21 #include <drm/drm_mipi_dsi.h>
22 #include <drm/drm_modes.h>
23 #include <drm/drm_panel.h>
24
25 enum {
26 TYPE_TAMA_60HZ,
27 /*
28 * Leaving room for expansion - SONY very often uses
29 * *truly reliably* overclockable panels on their flagships!
30 */
31 };
32
33 struct sony_td4353_jdi {
34 struct drm_panel panel;
35 struct mipi_dsi_device *dsi;
36 struct regulator_bulk_data supplies[3];
37 struct gpio_desc *panel_reset_gpio;
38 struct gpio_desc *touch_reset_gpio;
39 bool prepared;
40 int type;
41 };
42
to_sony_td4353_jdi(struct drm_panel * panel)43 static inline struct sony_td4353_jdi *to_sony_td4353_jdi(struct drm_panel *panel)
44 {
45 return container_of(panel, struct sony_td4353_jdi, panel);
46 }
47
sony_td4353_jdi_on(struct sony_td4353_jdi * ctx)48 static int sony_td4353_jdi_on(struct sony_td4353_jdi *ctx)
49 {
50 struct mipi_dsi_device *dsi = ctx->dsi;
51 struct device *dev = &dsi->dev;
52 int ret;
53
54 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
55
56 ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1);
57 if (ret < 0) {
58 dev_err(dev, "Failed to set column address: %d\n", ret);
59 return ret;
60 }
61
62 ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1);
63 if (ret < 0) {
64 dev_err(dev, "Failed to set page address: %d\n", ret);
65 return ret;
66 }
67
68 ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
69 if (ret < 0) {
70 dev_err(dev, "Failed to set tear scanline: %d\n", ret);
71 return ret;
72 }
73
74 ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
75 if (ret < 0) {
76 dev_err(dev, "Failed to set tear on: %d\n", ret);
77 return ret;
78 }
79
80 mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
81
82 ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
83 if (ret < 0) {
84 dev_err(dev, "Failed to set pixel format: %d\n", ret);
85 return ret;
86 }
87
88 mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PARTIAL_ROWS,
89 0x00, 0x00, 0x08, 0x6f);
90
91 ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
92 if (ret < 0) {
93 dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
94 return ret;
95 }
96 msleep(70);
97
98 mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
99
100 ret = mipi_dsi_dcs_set_display_on(dsi);
101 if (ret < 0) {
102 dev_err(dev, "Failed to turn display on: %d\n", ret);
103 return ret;
104 }
105
106 return 0;
107 }
108
sony_td4353_jdi_off(struct sony_td4353_jdi * ctx)109 static int sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
110 {
111 struct mipi_dsi_device *dsi = ctx->dsi;
112 struct device *dev = &dsi->dev;
113 int ret;
114
115 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
116
117 ret = mipi_dsi_dcs_set_display_off(dsi);
118 if (ret < 0) {
119 dev_err(dev, "Failed to set display off: %d\n", ret);
120 return ret;
121 }
122 msleep(22);
123
124 ret = mipi_dsi_dcs_set_tear_off(dsi);
125 if (ret < 0) {
126 dev_err(dev, "Failed to set tear off: %d\n", ret);
127 return ret;
128 }
129
130 ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
131 if (ret < 0) {
132 dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
133 return ret;
134 }
135 msleep(80);
136
137 return 0;
138 }
139
sony_td4353_assert_reset_gpios(struct sony_td4353_jdi * ctx,int mode)140 static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode)
141 {
142 gpiod_set_value_cansleep(ctx->touch_reset_gpio, mode);
143 gpiod_set_value_cansleep(ctx->panel_reset_gpio, mode);
144 usleep_range(5000, 5100);
145 }
146
sony_td4353_jdi_prepare(struct drm_panel * panel)147 static int sony_td4353_jdi_prepare(struct drm_panel *panel)
148 {
149 struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
150 struct device *dev = &ctx->dsi->dev;
151 int ret;
152
153 if (ctx->prepared)
154 return 0;
155
156 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
157 if (ret < 0) {
158 dev_err(dev, "Failed to enable regulators: %d\n", ret);
159 return ret;
160 }
161
162 msleep(100);
163
164 sony_td4353_assert_reset_gpios(ctx, 1);
165
166 ret = sony_td4353_jdi_on(ctx);
167 if (ret < 0) {
168 dev_err(dev, "Failed to power on panel: %d\n", ret);
169 sony_td4353_assert_reset_gpios(ctx, 0);
170 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
171 return ret;
172 }
173
174 ctx->prepared = true;
175 return 0;
176 }
177
sony_td4353_jdi_unprepare(struct drm_panel * panel)178 static int sony_td4353_jdi_unprepare(struct drm_panel *panel)
179 {
180 struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
181 struct device *dev = &ctx->dsi->dev;
182 int ret;
183
184 if (!ctx->prepared)
185 return 0;
186
187 ret = sony_td4353_jdi_off(ctx);
188 if (ret < 0)
189 dev_err(dev, "Failed to power off panel: %d\n", ret);
190
191 sony_td4353_assert_reset_gpios(ctx, 0);
192 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
193
194 ctx->prepared = false;
195 return 0;
196 }
197
198 static const struct drm_display_mode sony_td4353_jdi_mode_tama_60hz = {
199 .clock = (1080 + 4 + 8 + 8) * (2160 + 259 + 8 + 8) * 60 / 1000,
200 .hdisplay = 1080,
201 .hsync_start = 1080 + 4,
202 .hsync_end = 1080 + 4 + 8,
203 .htotal = 1080 + 4 + 8 + 8,
204 .vdisplay = 2160,
205 .vsync_start = 2160 + 259,
206 .vsync_end = 2160 + 259 + 8,
207 .vtotal = 2160 + 259 + 8 + 8,
208 .width_mm = 64,
209 .height_mm = 128,
210 };
211
sony_td4353_jdi_get_modes(struct drm_panel * panel,struct drm_connector * connector)212 static int sony_td4353_jdi_get_modes(struct drm_panel *panel,
213 struct drm_connector *connector)
214 {
215 struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
216 struct drm_display_mode *mode = NULL;
217
218 if (ctx->type == TYPE_TAMA_60HZ)
219 mode = drm_mode_duplicate(connector->dev, &sony_td4353_jdi_mode_tama_60hz);
220 else
221 return -EINVAL;
222
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 sony_td4353_jdi_panel_funcs = {
237 .prepare = sony_td4353_jdi_prepare,
238 .unprepare = sony_td4353_jdi_unprepare,
239 .get_modes = sony_td4353_jdi_get_modes,
240 };
241
sony_td4353_jdi_probe(struct mipi_dsi_device * dsi)242 static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
243 {
244 struct device *dev = &dsi->dev;
245 struct sony_td4353_jdi *ctx;
246 int ret;
247
248 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
249 if (!ctx)
250 return -ENOMEM;
251
252 ctx->type = (uintptr_t)of_device_get_match_data(dev);
253
254 ctx->supplies[0].supply = "vddio";
255 ctx->supplies[1].supply = "vsp";
256 ctx->supplies[2].supply = "vsn";
257 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
258 ctx->supplies);
259 if (ret < 0)
260 return dev_err_probe(dev, ret, "Failed to get regulators\n");
261
262 ctx->panel_reset_gpio = devm_gpiod_get(dev, "panel-reset", GPIOD_ASIS);
263 if (IS_ERR(ctx->panel_reset_gpio))
264 return dev_err_probe(dev, PTR_ERR(ctx->panel_reset_gpio),
265 "Failed to get panel-reset-gpios\n");
266
267 ctx->touch_reset_gpio = devm_gpiod_get(dev, "touch-reset", GPIOD_ASIS);
268 if (IS_ERR(ctx->touch_reset_gpio))
269 return dev_err_probe(dev, PTR_ERR(ctx->touch_reset_gpio),
270 "Failed to get touch-reset-gpios\n");
271
272 ctx->dsi = dsi;
273 mipi_dsi_set_drvdata(dsi, ctx);
274
275 dsi->lanes = 4;
276 dsi->format = MIPI_DSI_FMT_RGB888;
277 dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
278
279 drm_panel_init(&ctx->panel, dev, &sony_td4353_jdi_panel_funcs,
280 DRM_MODE_CONNECTOR_DSI);
281
282 ret = drm_panel_of_backlight(&ctx->panel);
283 if (ret)
284 return dev_err_probe(dev, ret, "Failed to get backlight\n");
285
286 drm_panel_add(&ctx->panel);
287
288 ret = mipi_dsi_attach(dsi);
289 if (ret < 0) {
290 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
291 drm_panel_remove(&ctx->panel);
292 return ret;
293 }
294
295 return 0;
296 }
297
sony_td4353_jdi_remove(struct mipi_dsi_device * dsi)298 static void sony_td4353_jdi_remove(struct mipi_dsi_device *dsi)
299 {
300 struct sony_td4353_jdi *ctx = mipi_dsi_get_drvdata(dsi);
301 int ret;
302
303 ret = mipi_dsi_detach(dsi);
304 if (ret < 0)
305 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
306
307 drm_panel_remove(&ctx->panel);
308 }
309
310 static const struct of_device_id sony_td4353_jdi_of_match[] = {
311 { .compatible = "sony,td4353-jdi-tama", .data = (void *)TYPE_TAMA_60HZ },
312 { /* sentinel */ }
313 };
314 MODULE_DEVICE_TABLE(of, sony_td4353_jdi_of_match);
315
316 static struct mipi_dsi_driver sony_td4353_jdi_driver = {
317 .probe = sony_td4353_jdi_probe,
318 .remove = sony_td4353_jdi_remove,
319 .driver = {
320 .name = "panel-sony-td4353-jdi",
321 .of_match_table = sony_td4353_jdi_of_match,
322 },
323 };
324 module_mipi_dsi_driver(sony_td4353_jdi_driver);
325
326 MODULE_AUTHOR("Konrad Dybcio <konrad.dybcio@somainline.org>");
327 MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
328 MODULE_LICENSE("GPL");
329