1 // SPDX-License-Identifier: GPL-2.0
6 #include <linux/delay.h>
34 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in visionox_rm69299_power_on()
39 	 * Reset sequence of visionox panel requires the panel to be  in visionox_rm69299_power_on()
40 	 * out of reset for 10ms, followed by being held in reset  in visionox_rm69299_power_on()
41 	 * for 10ms and then out again  in visionox_rm69299_power_on()
43 	gpiod_set_value(ctx->reset_gpio, 1);  in visionox_rm69299_power_on()
45 	gpiod_set_value(ctx->reset_gpio, 0);  in visionox_rm69299_power_on()
47 	gpiod_set_value(ctx->reset_gpio, 1);  in visionox_rm69299_power_on()
55 	gpiod_set_value(ctx->reset_gpio, 0);  in visionox_rm69299_power_off()
57 	return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in visionox_rm69299_power_off()
65 	ctx->dsi->mode_flags = 0;  in visionox_rm69299_unprepare()
67 	ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);  in visionox_rm69299_unprepare()
69 		dev_err(ctx->panel.dev, "set_display_off cmd failed ret = %d\n", ret);  in visionox_rm69299_unprepare()
71 	/* 120ms delay required here as per DCS spec */  in visionox_rm69299_unprepare()
74 	ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);  in visionox_rm69299_unprepare()
76 		dev_err(ctx->panel.dev, "enter_sleep cmd failed ret = %d\n", ret);  in visionox_rm69299_unprepare()
93 	ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in visionox_rm69299_prepare()
95 	ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xfe, 0x00 }, 2);  in visionox_rm69299_prepare()
97 		dev_err(ctx->panel.dev, "cmd set tx 0 failed, ret = %d\n", ret);  in visionox_rm69299_prepare()
101 	ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xc2, 0x08 }, 2);  in visionox_rm69299_prepare()
103 		dev_err(ctx->panel.dev, "cmd set tx 1 failed, ret = %d\n", ret);  in visionox_rm69299_prepare()
107 	ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x35, 0x00 }, 2);  in visionox_rm69299_prepare()
109 		dev_err(ctx->panel.dev, "cmd set tx 2 failed, ret = %d\n", ret);  in visionox_rm69299_prepare()
113 	ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x51, 0xff }, 2);  in visionox_rm69299_prepare()
115 		dev_err(ctx->panel.dev, "cmd set tx 3 failed, ret = %d\n", ret);  in visionox_rm69299_prepare()
119 	ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);  in visionox_rm69299_prepare()
121 		dev_err(ctx->panel.dev, "exit_sleep_mode cmd failed ret = %d\n", ret);  in visionox_rm69299_prepare()
125 	/* Per DSI spec wait 120ms after sending exit sleep DCS command */  in visionox_rm69299_prepare()
128 	ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);  in visionox_rm69299_prepare()
130 		dev_err(ctx->panel.dev, "set_display_on cmd failed ret = %d\n", ret);  in visionox_rm69299_prepare()
134 	/* Per DSI spec wait 120ms after sending set_display_on DCS command */  in visionox_rm69299_prepare()
163 	mode = drm_mode_duplicate(connector->dev,  in visionox_rm69299_get_modes()
166 		dev_err(ctx->panel.dev, "failed to create a new display mode\n");  in visionox_rm69299_get_modes()
170 	connector->display_info.width_mm = 74;  in visionox_rm69299_get_modes()
171 	connector->display_info.height_mm = 131;  in visionox_rm69299_get_modes()
172 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in visionox_rm69299_get_modes()
186 	struct device *dev = &dsi->dev;  in visionox_rm69299_probe()
192 		return -ENOMEM;  in visionox_rm69299_probe()
196 	ctx->panel.dev = dev;  in visionox_rm69299_probe()
197 	ctx->dsi = dsi;  in visionox_rm69299_probe()
199 	ctx->supplies[0].supply = "vdda";  in visionox_rm69299_probe()
200 	ctx->supplies[0].init_load_uA = 32000;  in visionox_rm69299_probe()
201 	ctx->supplies[1].supply = "vdd3p3";  in visionox_rm69299_probe()
202 	ctx->supplies[1].init_load_uA = 13200;  in visionox_rm69299_probe()
204 	ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),  in visionox_rm69299_probe()
205 				      ctx->supplies);  in visionox_rm69299_probe()
209 	ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev,  in visionox_rm69299_probe()
210 					 "reset", GPIOD_OUT_LOW);  in visionox_rm69299_probe()
211 	if (IS_ERR(ctx->reset_gpio)) {  in visionox_rm69299_probe()
212 		dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio));  in visionox_rm69299_probe()
213 		return PTR_ERR(ctx->reset_gpio);  in visionox_rm69299_probe()
216 	drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,  in visionox_rm69299_probe()
218 	ctx->panel.dev = dev;  in visionox_rm69299_probe()
219 	ctx->panel.funcs = &visionox_rm69299_drm_funcs;  in visionox_rm69299_probe()
220 	drm_panel_add(&ctx->panel);  in visionox_rm69299_probe()
222 	dsi->lanes = 4;  in visionox_rm69299_probe()
223 	dsi->format = MIPI_DSI_FMT_RGB888;  in visionox_rm69299_probe()
224 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |  in visionox_rm69299_probe()
235 	drm_panel_remove(&ctx->panel);  in visionox_rm69299_probe()
243 	mipi_dsi_detach(ctx->dsi);  in visionox_rm69299_remove()
244 	drm_panel_remove(&ctx->panel);  in visionox_rm69299_remove()
248 	{ .compatible = "visionox,rm69299-1080p-display", },
255 		.name = "panel-visionox-rm69299",