1 // SPDX-License-Identifier: GPL-2.0-only
3  * Generic DVI Connector driver
53 	struct omap_dss_device *in = ddata->in;  in dvic_connect()
59 	r = in->ops.dvi->connect(in, dssdev);  in dvic_connect()
69 	struct omap_dss_device *in = ddata->in;  in dvic_disconnect()
74 	in->ops.dvi->disconnect(in, dssdev);  in dvic_disconnect()
80 	struct omap_dss_device *in = ddata->in;  in dvic_enable()
84 		return -ENODEV;  in dvic_enable()
89 	in->ops.dvi->set_timings(in, &ddata->timings);  in dvic_enable()
91 	r = in->ops.dvi->enable(in);  in dvic_enable()
95 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in dvic_enable()
103 	struct omap_dss_device *in = ddata->in;  in dvic_disable()
108 	in->ops.dvi->disable(in);  in dvic_disable()
110 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in dvic_disable()
117 	struct omap_dss_device *in = ddata->in;  in dvic_set_timings()
119 	ddata->timings = *timings;  in dvic_set_timings()
120 	dssdev->panel.timings = *timings;  in dvic_set_timings()
122 	in->ops.dvi->set_timings(in, timings);  in dvic_set_timings()
130 	*timings = ddata->timings;  in dvic_get_timings()
137 	struct omap_dss_device *in = ddata->in;  in dvic_check_timings()
139 	return in->ops.dvi->check_timings(in, timings);  in dvic_check_timings()
147 	for (retries = 3; retries > 0; retries--) {  in dvic_ddc_read()
166 		if (r != -EAGAIN)  in dvic_ddc_read()
170 	return r < 0 ? r : -EIO;  in dvic_ddc_read()
179 	if (!ddata->i2c_adapter)  in dvic_read_edid()
180 		return -ENODEV;  in dvic_read_edid()
183 	r = dvic_ddc_read(ddata->i2c_adapter, edid, l, 0);  in dvic_read_edid()
191 		l = min(EDID_LENGTH, len - EDID_LENGTH);  in dvic_read_edid()
193 		r = dvic_ddc_read(ddata->i2c_adapter, edid + EDID_LENGTH,  in dvic_read_edid()
210 	if (!ddata->i2c_adapter)  in dvic_detect()
213 	r = dvic_ddc_read(ddata->i2c_adapter, &out, 1, 0);  in dvic_detect()
238 	struct device_node *node = pdev->dev.of_node;  in dvic_probe_of()
245 		dev_err(&pdev->dev, "failed to find video source\n");  in dvic_probe_of()
249 	ddata->in = in;  in dvic_probe_of()
251 	adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);  in dvic_probe_of()
255 			dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");  in dvic_probe_of()
256 			omap_dss_put_device(ddata->in);  in dvic_probe_of()
257 			return -EPROBE_DEFER;  in dvic_probe_of()
260 		ddata->i2c_adapter = adapter;  in dvic_probe_of()
272 	if (!pdev->dev.of_node)  in dvic_probe()
273 		return -ENODEV;  in dvic_probe()
275 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in dvic_probe()
277 		return -ENOMEM;  in dvic_probe()
285 	ddata->timings = dvic_default_timings;  in dvic_probe()
287 	dssdev = &ddata->dssdev;  in dvic_probe()
288 	dssdev->driver = &dvic_driver;  in dvic_probe()
289 	dssdev->dev = &pdev->dev;  in dvic_probe()
290 	dssdev->type = OMAP_DISPLAY_TYPE_DVI;  in dvic_probe()
291 	dssdev->owner = THIS_MODULE;  in dvic_probe()
292 	dssdev->panel.timings = dvic_default_timings;  in dvic_probe()
296 		dev_err(&pdev->dev, "Failed to register panel\n");  in dvic_probe()
303 	omap_dss_put_device(ddata->in);  in dvic_probe()
305 	i2c_put_adapter(ddata->i2c_adapter);  in dvic_probe()
313 	struct omap_dss_device *dssdev = &ddata->dssdev;  in dvic_remove()
314 	struct omap_dss_device *in = ddata->in;  in dvic_remove()
316 	omapdss_unregister_display(&ddata->dssdev);  in dvic_remove()
323 	i2c_put_adapter(ddata->i2c_adapter);  in dvic_remove()
329 	{ .compatible = "omapdss,dvi-connector", },
339 		.name	= "connector-dvi",
348 MODULE_DESCRIPTION("Generic DVI Connector driver");