1 // SPDX-License-Identifier: GPL-2.0-only
3  * Generic MIPI DPI Panel Driver
17 #include <video/omap-panel-data.h>
28 	/* used for non-DT boot, to be removed */
39 	struct omap_dss_device *in = ddata->in;  in panel_dpi_connect()
45 	r = in->ops.dpi->connect(in, dssdev);  in panel_dpi_connect()
55 	struct omap_dss_device *in = ddata->in;  in panel_dpi_disconnect()
60 	in->ops.dpi->disconnect(in, dssdev);  in panel_dpi_disconnect()
66 	struct omap_dss_device *in = ddata->in;  in panel_dpi_enable()
70 		return -ENODEV;  in panel_dpi_enable()
75 	if (ddata->data_lines)  in panel_dpi_enable()
76 		in->ops.dpi->set_data_lines(in, ddata->data_lines);  in panel_dpi_enable()
77 	in->ops.dpi->set_timings(in, &ddata->videomode);  in panel_dpi_enable()
79 	r = in->ops.dpi->enable(in);  in panel_dpi_enable()
83 	gpiod_set_value_cansleep(ddata->enable_gpio, 1);  in panel_dpi_enable()
85 	if (gpio_is_valid(ddata->backlight_gpio))  in panel_dpi_enable()
86 		gpio_set_value_cansleep(ddata->backlight_gpio, 1);  in panel_dpi_enable()
88 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in panel_dpi_enable()
96 	struct omap_dss_device *in = ddata->in;  in panel_dpi_disable()
101 	if (gpio_is_valid(ddata->backlight_gpio))  in panel_dpi_disable()
102 		gpio_set_value_cansleep(ddata->backlight_gpio, 0);  in panel_dpi_disable()
104 	gpiod_set_value_cansleep(ddata->enable_gpio, 0);  in panel_dpi_disable()
106 	in->ops.dpi->disable(in);  in panel_dpi_disable()
108 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in panel_dpi_disable()
115 	struct omap_dss_device *in = ddata->in;  in panel_dpi_set_timings()
117 	ddata->videomode = *timings;  in panel_dpi_set_timings()
118 	dssdev->panel.timings = *timings;  in panel_dpi_set_timings()
120 	in->ops.dpi->set_timings(in, timings);  in panel_dpi_set_timings()
128 	*timings = ddata->videomode;  in panel_dpi_get_timings()
135 	struct omap_dss_device *in = ddata->in;  in panel_dpi_check_timings()
137 	return in->ops.dpi->check_timings(in, timings);  in panel_dpi_check_timings()
162 	pdata = dev_get_platdata(&pdev->dev);  in panel_dpi_probe_pdata()
164 	in = omap_dss_find_output(pdata->source);  in panel_dpi_probe_pdata()
166 		dev_err(&pdev->dev, "failed to find video source '%s'\n",  in panel_dpi_probe_pdata()
167 				pdata->source);  in panel_dpi_probe_pdata()
168 		return -EPROBE_DEFER;  in panel_dpi_probe_pdata()
171 	ddata->in = in;  in panel_dpi_probe_pdata()
173 	ddata->data_lines = pdata->data_lines;  in panel_dpi_probe_pdata()
175 	videomode_from_timing(pdata->display_timing, &vm);  in panel_dpi_probe_pdata()
176 	videomode_to_omap_video_timings(&vm, &ddata->videomode);  in panel_dpi_probe_pdata()
178 	dssdev = &ddata->dssdev;  in panel_dpi_probe_pdata()
179 	dssdev->name = pdata->name;  in panel_dpi_probe_pdata()
181 	r = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,  in panel_dpi_probe_pdata()
182 					GPIOF_OUT_INIT_LOW, "panel enable");  in panel_dpi_probe_pdata()
186 	ddata->enable_gpio = gpio_to_desc(pdata->enable_gpio);  in panel_dpi_probe_pdata()
188 	ddata->backlight_gpio = pdata->backlight_gpio;  in panel_dpi_probe_pdata()
193 	omap_dss_put_device(ddata->in);  in panel_dpi_probe_pdata()
200 	struct device_node *node = pdev->dev.of_node;  in panel_dpi_probe_of()
207 	gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW);  in panel_dpi_probe_of()
211 	ddata->enable_gpio = gpio;  in panel_dpi_probe_of()
213 	ddata->backlight_gpio = -ENOENT;  in panel_dpi_probe_of()
215 	r = of_get_display_timing(node, "panel-timing", &timing);  in panel_dpi_probe_of()
217 		dev_err(&pdev->dev, "failed to get video timing\n");  in panel_dpi_probe_of()
222 	videomode_to_omap_video_timings(&vm, &ddata->videomode);  in panel_dpi_probe_of()
226 		dev_err(&pdev->dev, "failed to find video source\n");  in panel_dpi_probe_of()
230 	ddata->in = in;  in panel_dpi_probe_of()
241 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in panel_dpi_probe()
243 		return -ENOMEM;  in panel_dpi_probe()
247 	if (dev_get_platdata(&pdev->dev)) {  in panel_dpi_probe()
251 	} else if (pdev->dev.of_node) {  in panel_dpi_probe()
256 		return -ENODEV;  in panel_dpi_probe()
259 	if (gpio_is_valid(ddata->backlight_gpio)) {  in panel_dpi_probe()
260 		r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio,  in panel_dpi_probe()
261 				GPIOF_OUT_INIT_LOW, "panel backlight");  in panel_dpi_probe()
266 	dssdev = &ddata->dssdev;  in panel_dpi_probe()
267 	dssdev->dev = &pdev->dev;  in panel_dpi_probe()
268 	dssdev->driver = &panel_dpi_ops;  in panel_dpi_probe()
269 	dssdev->type = OMAP_DISPLAY_TYPE_DPI;  in panel_dpi_probe()
270 	dssdev->owner = THIS_MODULE;  in panel_dpi_probe()
271 	dssdev->panel.timings = ddata->videomode;  in panel_dpi_probe()
272 	dssdev->phy.dpi.data_lines = ddata->data_lines;  in panel_dpi_probe()
276 		dev_err(&pdev->dev, "Failed to register panel\n");  in panel_dpi_probe()
284 	omap_dss_put_device(ddata->in);  in panel_dpi_probe()
291 	struct omap_dss_device *dssdev = &ddata->dssdev;  in panel_dpi_remove()
292 	struct omap_dss_device *in = ddata->in;  in panel_dpi_remove()
305 	{ .compatible = "omapdss,panel-dpi", },
315 		.name = "panel-dpi",
324 MODULE_DESCRIPTION("Generic MIPI DPI Panel Driver");