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
25enum {
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
33struct 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
43static 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
48static 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
109static 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
140static 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
147static 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
178static 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
198static 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
212static 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
236static 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
242static 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
298static 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
310static const struct of_device_id sony_td4353_jdi_of_match[] = {
311	{ .compatible = "sony,td4353-jdi-tama", .data = (void *)TYPE_TAMA_60HZ },
312	{ /* sentinel */ }
313};
314MODULE_DEVICE_TABLE(of, sony_td4353_jdi_of_match);
315
316static 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};
324module_mipi_dsi_driver(sony_td4353_jdi_driver);
325
326MODULE_AUTHOR("Konrad Dybcio <konrad.dybcio@somainline.org>");
327MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
328MODULE_LICENSE("GPL");
329