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()
44 	return in->ops.dpi->connect(in, dssdev);  in panel_dpi_connect()
50 	struct omap_dss_device *in = ddata->in;  in panel_dpi_disconnect()
55 	in->ops.dpi->disconnect(in, dssdev);  in panel_dpi_disconnect()
61 	struct omap_dss_device *in = ddata->in;  in panel_dpi_enable()
65 		return -ENODEV;  in panel_dpi_enable()
70 	if (ddata->data_lines)  in panel_dpi_enable()
71 		in->ops.dpi->set_data_lines(in, ddata->data_lines);  in panel_dpi_enable()
72 	in->ops.dpi->set_timings(in, &ddata->videomode);  in panel_dpi_enable()
74 	r = in->ops.dpi->enable(in);  in panel_dpi_enable()
78 	gpiod_set_value_cansleep(ddata->enable_gpio, 1);  in panel_dpi_enable()
80 	if (gpio_is_valid(ddata->backlight_gpio))  in panel_dpi_enable()
81 		gpio_set_value_cansleep(ddata->backlight_gpio, 1);  in panel_dpi_enable()
83 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in panel_dpi_enable()
91 	struct omap_dss_device *in = ddata->in;  in panel_dpi_disable()
96 	if (gpio_is_valid(ddata->backlight_gpio))  in panel_dpi_disable()
97 		gpio_set_value_cansleep(ddata->backlight_gpio, 0);  in panel_dpi_disable()
99 	gpiod_set_value_cansleep(ddata->enable_gpio, 0);  in panel_dpi_disable()
101 	in->ops.dpi->disable(in);  in panel_dpi_disable()
103 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in panel_dpi_disable()
110 	struct omap_dss_device *in = ddata->in;  in panel_dpi_set_timings()
112 	ddata->videomode = *timings;  in panel_dpi_set_timings()
113 	dssdev->panel.timings = *timings;  in panel_dpi_set_timings()
115 	in->ops.dpi->set_timings(in, timings);  in panel_dpi_set_timings()
123 	*timings = ddata->videomode;  in panel_dpi_get_timings()
130 	struct omap_dss_device *in = ddata->in;  in panel_dpi_check_timings()
132 	return in->ops.dpi->check_timings(in, timings);  in panel_dpi_check_timings()
157 	pdata = dev_get_platdata(&pdev->dev);  in panel_dpi_probe_pdata()
159 	in = omap_dss_find_output(pdata->source);  in panel_dpi_probe_pdata()
161 		dev_err(&pdev->dev, "failed to find video source '%s'\n",  in panel_dpi_probe_pdata()
162 				pdata->source);  in panel_dpi_probe_pdata()
163 		return -EPROBE_DEFER;  in panel_dpi_probe_pdata()
166 	ddata->in = in;  in panel_dpi_probe_pdata()
168 	ddata->data_lines = pdata->data_lines;  in panel_dpi_probe_pdata()
170 	videomode_from_timing(pdata->display_timing, &vm);  in panel_dpi_probe_pdata()
171 	videomode_to_omap_video_timings(&vm, &ddata->videomode);  in panel_dpi_probe_pdata()
173 	dssdev = &ddata->dssdev;  in panel_dpi_probe_pdata()
174 	dssdev->name = pdata->name;  in panel_dpi_probe_pdata()
176 	r = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,  in panel_dpi_probe_pdata()
181 	ddata->enable_gpio = gpio_to_desc(pdata->enable_gpio);  in panel_dpi_probe_pdata()
183 	ddata->backlight_gpio = pdata->backlight_gpio;  in panel_dpi_probe_pdata()
188 	omap_dss_put_device(ddata->in);  in panel_dpi_probe_pdata()
195 	struct device_node *node = pdev->dev.of_node;  in panel_dpi_probe_of()
202 	gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW);  in panel_dpi_probe_of()
206 	ddata->enable_gpio = gpio;  in panel_dpi_probe_of()
208 	ddata->backlight_gpio = -ENOENT;  in panel_dpi_probe_of()
210 	r = of_get_display_timing(node, "panel-timing", &timing);  in panel_dpi_probe_of()
212 		dev_err(&pdev->dev, "failed to get video timing\n");  in panel_dpi_probe_of()
217 	videomode_to_omap_video_timings(&vm, &ddata->videomode);  in panel_dpi_probe_of()
221 		dev_err(&pdev->dev, "failed to find video source\n");  in panel_dpi_probe_of()
225 	ddata->in = in;  in panel_dpi_probe_of()
236 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in panel_dpi_probe()
238 		return -ENOMEM;  in panel_dpi_probe()
242 	if (dev_get_platdata(&pdev->dev)) {  in panel_dpi_probe()
246 	} else if (pdev->dev.of_node) {  in panel_dpi_probe()
251 		return -ENODEV;  in panel_dpi_probe()
254 	if (gpio_is_valid(ddata->backlight_gpio)) {  in panel_dpi_probe()
255 		r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio,  in panel_dpi_probe()
261 	dssdev = &ddata->dssdev;  in panel_dpi_probe()
262 	dssdev->dev = &pdev->dev;  in panel_dpi_probe()
263 	dssdev->driver = &panel_dpi_ops;  in panel_dpi_probe()
264 	dssdev->type = OMAP_DISPLAY_TYPE_DPI;  in panel_dpi_probe()
265 	dssdev->owner = THIS_MODULE;  in panel_dpi_probe()
266 	dssdev->panel.timings = ddata->videomode;  in panel_dpi_probe()
267 	dssdev->phy.dpi.data_lines = ddata->data_lines;  in panel_dpi_probe()
271 		dev_err(&pdev->dev, "Failed to register panel\n");  in panel_dpi_probe()
279 	omap_dss_put_device(ddata->in);  in panel_dpi_probe()
286 	struct omap_dss_device *dssdev = &ddata->dssdev;  in panel_dpi_remove()
287 	struct omap_dss_device *in = ddata->in;  in panel_dpi_remove()
300 	{ .compatible = "omapdss,panel-dpi", },
310 		.name = "panel-dpi",
319 MODULE_DESCRIPTION("Generic MIPI DPI Panel Driver");