Loading...
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2019, The Linux Foundation. All rights reserved.
4 */
5
6#include <linux/delay.h>
7#include <linux/module.h>
8#include <linux/mod_devicetable.h>
9#include <linux/gpio/consumer.h>
10#include <linux/regulator/consumer.h>
11
12#include <video/mipi_display.h>
13
14#include <drm/drm_mipi_dsi.h>
15#include <drm/drm_modes.h>
16#include <drm/drm_panel.h>
17
18struct visionox_rm69299 {
19 struct drm_panel panel;
20 struct regulator_bulk_data supplies[2];
21 struct gpio_desc *reset_gpio;
22 struct mipi_dsi_device *dsi;
23};
24
25static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
26{
27 return container_of(panel, struct visionox_rm69299, panel);
28}
29
30static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)
31{
32 int ret;
33
34 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
35 if (ret < 0)
36 return ret;
37
38 /*
39 * Reset sequence of visionox panel requires the panel to be
40 * out of reset for 10ms, followed by being held in reset
41 * for 10ms and then out again
42 */
43 gpiod_set_value(ctx->reset_gpio, 1);
44 usleep_range(10000, 20000);
45 gpiod_set_value(ctx->reset_gpio, 0);
46 usleep_range(10000, 20000);
47 gpiod_set_value(ctx->reset_gpio, 1);
48 usleep_range(10000, 20000);
49
50 return 0;
51}
52
53static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
54{
55 gpiod_set_value(ctx->reset_gpio, 0);
56
57 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
58}
59
60static int visionox_rm69299_unprepare(struct drm_panel *panel)
61{
62 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
63 int ret;
64
65 ctx->dsi->mode_flags = 0;
66
67 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);
68 if (ret < 0)
69 dev_err(ctx->panel.dev, "set_display_off cmd failed ret = %d\n", ret);
70
71 /* 120ms delay required here as per DCS spec */
72 msleep(120);
73
74 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);
75 if (ret < 0) {
76 dev_err(ctx->panel.dev, "enter_sleep cmd failed ret = %d\n", ret);
77 }
78
79 ret = visionox_rm69299_power_off(ctx);
80
81 return ret;
82}
83
84static int visionox_rm69299_prepare(struct drm_panel *panel)
85{
86 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
87 int ret;
88
89 ret = visionox_rm69299_power_on(ctx);
90 if (ret < 0)
91 return ret;
92
93 ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
94
95 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xfe, 0x00 }, 2);
96 if (ret < 0) {
97 dev_err(ctx->panel.dev, "cmd set tx 0 failed, ret = %d\n", ret);
98 goto power_off;
99 }
100
101 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xc2, 0x08 }, 2);
102 if (ret < 0) {
103 dev_err(ctx->panel.dev, "cmd set tx 1 failed, ret = %d\n", ret);
104 goto power_off;
105 }
106
107 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x35, 0x00 }, 2);
108 if (ret < 0) {
109 dev_err(ctx->panel.dev, "cmd set tx 2 failed, ret = %d\n", ret);
110 goto power_off;
111 }
112
113 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x51, 0xff }, 2);
114 if (ret < 0) {
115 dev_err(ctx->panel.dev, "cmd set tx 3 failed, ret = %d\n", ret);
116 goto power_off;
117 }
118
119 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
120 if (ret < 0) {
121 dev_err(ctx->panel.dev, "exit_sleep_mode cmd failed ret = %d\n", ret);
122 goto power_off;
123 }
124
125 /* Per DSI spec wait 120ms after sending exit sleep DCS command */
126 msleep(120);
127
128 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
129 if (ret < 0) {
130 dev_err(ctx->panel.dev, "set_display_on cmd failed ret = %d\n", ret);
131 goto power_off;
132 }
133
134 /* Per DSI spec wait 120ms after sending set_display_on DCS command */
135 msleep(120);
136
137 return 0;
138
139power_off:
140 return ret;
141}
142
143static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = {
144 .name = "1080x2248",
145 .clock = 158695,
146 .hdisplay = 1080,
147 .hsync_start = 1080 + 26,
148 .hsync_end = 1080 + 26 + 2,
149 .htotal = 1080 + 26 + 2 + 36,
150 .vdisplay = 2248,
151 .vsync_start = 2248 + 56,
152 .vsync_end = 2248 + 56 + 4,
153 .vtotal = 2248 + 56 + 4 + 4,
154 .flags = 0,
155};
156
157static int visionox_rm69299_get_modes(struct drm_panel *panel,
158 struct drm_connector *connector)
159{
160 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
161 struct drm_display_mode *mode;
162
163 mode = drm_mode_duplicate(connector->dev,
164 &visionox_rm69299_1080x2248_60hz);
165 if (!mode) {
166 dev_err(ctx->panel.dev, "failed to create a new display mode\n");
167 return 0;
168 }
169
170 connector->display_info.width_mm = 74;
171 connector->display_info.height_mm = 131;
172 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
173 drm_mode_probed_add(connector, mode);
174
175 return 1;
176}
177
178static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
179 .unprepare = visionox_rm69299_unprepare,
180 .prepare = visionox_rm69299_prepare,
181 .get_modes = visionox_rm69299_get_modes,
182};
183
184static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
185{
186 struct device *dev = &dsi->dev;
187 struct visionox_rm69299 *ctx;
188 int ret;
189
190 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
191 if (!ctx)
192 return -ENOMEM;
193
194 mipi_dsi_set_drvdata(dsi, ctx);
195
196 ctx->panel.dev = dev;
197 ctx->dsi = dsi;
198
199 ctx->supplies[0].supply = "vdda";
200 ctx->supplies[0].init_load_uA = 32000;
201 ctx->supplies[1].supply = "vdd3p3";
202 ctx->supplies[1].init_load_uA = 13200;
203
204 ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
205 ctx->supplies);
206 if (ret < 0)
207 return ret;
208
209 ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev,
210 "reset", GPIOD_OUT_LOW);
211 if (IS_ERR(ctx->reset_gpio)) {
212 dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio));
213 return PTR_ERR(ctx->reset_gpio);
214 }
215
216 drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
217 DRM_MODE_CONNECTOR_DSI);
218 ctx->panel.dev = dev;
219 ctx->panel.funcs = &visionox_rm69299_drm_funcs;
220 drm_panel_add(&ctx->panel);
221
222 dsi->lanes = 4;
223 dsi->format = MIPI_DSI_FMT_RGB888;
224 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
225 MIPI_DSI_CLOCK_NON_CONTINUOUS;
226 ret = mipi_dsi_attach(dsi);
227 if (ret < 0) {
228 dev_err(dev, "dsi attach failed ret = %d\n", ret);
229 goto err_dsi_attach;
230 }
231
232 return 0;
233
234err_dsi_attach:
235 drm_panel_remove(&ctx->panel);
236 return ret;
237}
238
239static void visionox_rm69299_remove(struct mipi_dsi_device *dsi)
240{
241 struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
242
243 mipi_dsi_detach(ctx->dsi);
244 drm_panel_remove(&ctx->panel);
245}
246
247static const struct of_device_id visionox_rm69299_of_match[] = {
248 { .compatible = "visionox,rm69299-1080p-display", },
249 { /* sentinel */ }
250};
251MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
252
253static struct mipi_dsi_driver visionox_rm69299_driver = {
254 .driver = {
255 .name = "panel-visionox-rm69299",
256 .of_match_table = visionox_rm69299_of_match,
257 },
258 .probe = visionox_rm69299_probe,
259 .remove = visionox_rm69299_remove,
260};
261module_mipi_dsi_driver(visionox_rm69299_driver);
262
263MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver");
264MODULE_LICENSE("GPL v2");
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2019, The Linux Foundation. All rights reserved.
4 */
5
6#include <linux/delay.h>
7#include <linux/module.h>
8#include <linux/of_device.h>
9#include <linux/gpio/consumer.h>
10#include <linux/regulator/consumer.h>
11
12#include <video/mipi_display.h>
13
14#include <drm/drm_mipi_dsi.h>
15#include <drm/drm_modes.h>
16#include <drm/drm_panel.h>
17
18struct visionox_rm69299 {
19 struct drm_panel panel;
20 struct regulator_bulk_data supplies[2];
21 struct gpio_desc *reset_gpio;
22 struct mipi_dsi_device *dsi;
23 bool prepared;
24 bool enabled;
25};
26
27static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
28{
29 return container_of(panel, struct visionox_rm69299, panel);
30}
31
32static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)
33{
34 int ret;
35
36 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
37 if (ret < 0)
38 return ret;
39
40 /*
41 * Reset sequence of visionox panel requires the panel to be
42 * out of reset for 10ms, followed by being held in reset
43 * for 10ms and then out again
44 */
45 gpiod_set_value(ctx->reset_gpio, 1);
46 usleep_range(10000, 20000);
47 gpiod_set_value(ctx->reset_gpio, 0);
48 usleep_range(10000, 20000);
49 gpiod_set_value(ctx->reset_gpio, 1);
50 usleep_range(10000, 20000);
51
52 return 0;
53}
54
55static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
56{
57 gpiod_set_value(ctx->reset_gpio, 0);
58
59 return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
60}
61
62static int visionox_rm69299_unprepare(struct drm_panel *panel)
63{
64 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
65 int ret;
66
67 ctx->dsi->mode_flags = 0;
68
69 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);
70 if (ret < 0)
71 dev_err(ctx->panel.dev, "set_display_off cmd failed ret = %d\n", ret);
72
73 /* 120ms delay required here as per DCS spec */
74 msleep(120);
75
76 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);
77 if (ret < 0) {
78 dev_err(ctx->panel.dev, "enter_sleep cmd failed ret = %d\n", ret);
79 }
80
81 ret = visionox_rm69299_power_off(ctx);
82
83 ctx->prepared = false;
84 return ret;
85}
86
87static int visionox_rm69299_prepare(struct drm_panel *panel)
88{
89 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
90 int ret;
91
92 if (ctx->prepared)
93 return 0;
94
95 ret = visionox_rm69299_power_on(ctx);
96 if (ret < 0)
97 return ret;
98
99 ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
100
101 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xfe, 0x00 }, 2);
102 if (ret < 0) {
103 dev_err(ctx->panel.dev, "cmd set tx 0 failed, ret = %d\n", ret);
104 goto power_off;
105 }
106
107 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xc2, 0x08 }, 2);
108 if (ret < 0) {
109 dev_err(ctx->panel.dev, "cmd set tx 1 failed, ret = %d\n", ret);
110 goto power_off;
111 }
112
113 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x35, 0x00 }, 2);
114 if (ret < 0) {
115 dev_err(ctx->panel.dev, "cmd set tx 2 failed, ret = %d\n", ret);
116 goto power_off;
117 }
118
119 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x51, 0xff }, 2);
120 if (ret < 0) {
121 dev_err(ctx->panel.dev, "cmd set tx 3 failed, ret = %d\n", ret);
122 goto power_off;
123 }
124
125 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
126 if (ret < 0) {
127 dev_err(ctx->panel.dev, "exit_sleep_mode cmd failed ret = %d\n", ret);
128 goto power_off;
129 }
130
131 /* Per DSI spec wait 120ms after sending exit sleep DCS command */
132 msleep(120);
133
134 ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
135 if (ret < 0) {
136 dev_err(ctx->panel.dev, "set_display_on cmd failed ret = %d\n", ret);
137 goto power_off;
138 }
139
140 /* Per DSI spec wait 120ms after sending set_display_on DCS command */
141 msleep(120);
142
143 ctx->prepared = true;
144
145 return 0;
146
147power_off:
148 return ret;
149}
150
151static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = {
152 .name = "1080x2248",
153 .clock = 158695,
154 .hdisplay = 1080,
155 .hsync_start = 1080 + 26,
156 .hsync_end = 1080 + 26 + 2,
157 .htotal = 1080 + 26 + 2 + 36,
158 .vdisplay = 2248,
159 .vsync_start = 2248 + 56,
160 .vsync_end = 2248 + 56 + 4,
161 .vtotal = 2248 + 56 + 4 + 4,
162 .flags = 0,
163};
164
165static int visionox_rm69299_get_modes(struct drm_panel *panel,
166 struct drm_connector *connector)
167{
168 struct visionox_rm69299 *ctx = panel_to_ctx(panel);
169 struct drm_display_mode *mode;
170
171 mode = drm_mode_duplicate(connector->dev,
172 &visionox_rm69299_1080x2248_60hz);
173 if (!mode) {
174 dev_err(ctx->panel.dev, "failed to create a new display mode\n");
175 return 0;
176 }
177
178 connector->display_info.width_mm = 74;
179 connector->display_info.height_mm = 131;
180 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
181 drm_mode_probed_add(connector, mode);
182
183 return 1;
184}
185
186static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
187 .unprepare = visionox_rm69299_unprepare,
188 .prepare = visionox_rm69299_prepare,
189 .get_modes = visionox_rm69299_get_modes,
190};
191
192static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
193{
194 struct device *dev = &dsi->dev;
195 struct visionox_rm69299 *ctx;
196 int ret;
197
198 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
199 if (!ctx)
200 return -ENOMEM;
201
202 mipi_dsi_set_drvdata(dsi, ctx);
203
204 ctx->panel.dev = dev;
205 ctx->dsi = dsi;
206
207 ctx->supplies[0].supply = "vdda";
208 ctx->supplies[1].supply = "vdd3p3";
209
210 ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
211 ctx->supplies);
212 if (ret < 0)
213 return ret;
214
215 ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev,
216 "reset", GPIOD_OUT_LOW);
217 if (IS_ERR(ctx->reset_gpio)) {
218 dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio));
219 return PTR_ERR(ctx->reset_gpio);
220 }
221
222 drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
223 DRM_MODE_CONNECTOR_DSI);
224 ctx->panel.dev = dev;
225 ctx->panel.funcs = &visionox_rm69299_drm_funcs;
226 drm_panel_add(&ctx->panel);
227
228 dsi->lanes = 4;
229 dsi->format = MIPI_DSI_FMT_RGB888;
230 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
231 MIPI_DSI_CLOCK_NON_CONTINUOUS;
232 ret = mipi_dsi_attach(dsi);
233 if (ret < 0) {
234 dev_err(dev, "dsi attach failed ret = %d\n", ret);
235 goto err_dsi_attach;
236 }
237
238 ret = regulator_set_load(ctx->supplies[0].consumer, 32000);
239 if (ret) {
240 dev_err(dev, "regulator set load failed for vdda supply ret = %d\n", ret);
241 goto err_set_load;
242 }
243
244 ret = regulator_set_load(ctx->supplies[1].consumer, 13200);
245 if (ret) {
246 dev_err(dev, "regulator set load failed for vdd3p3 supply ret = %d\n", ret);
247 goto err_set_load;
248 }
249
250 return 0;
251
252err_set_load:
253 mipi_dsi_detach(dsi);
254err_dsi_attach:
255 drm_panel_remove(&ctx->panel);
256 return ret;
257}
258
259static void visionox_rm69299_remove(struct mipi_dsi_device *dsi)
260{
261 struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
262
263 mipi_dsi_detach(ctx->dsi);
264 mipi_dsi_device_unregister(ctx->dsi);
265
266 drm_panel_remove(&ctx->panel);
267}
268
269static const struct of_device_id visionox_rm69299_of_match[] = {
270 { .compatible = "visionox,rm69299-1080p-display", },
271 { /* sentinel */ }
272};
273MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
274
275static struct mipi_dsi_driver visionox_rm69299_driver = {
276 .driver = {
277 .name = "panel-visionox-rm69299",
278 .of_match_table = visionox_rm69299_of_match,
279 },
280 .probe = visionox_rm69299_probe,
281 .remove = visionox_rm69299_remove,
282};
283module_mipi_dsi_driver(visionox_rm69299_driver);
284
285MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver");
286MODULE_LICENSE("GPL v2");