1 // SPDX-License-Identifier: GPL-2.0-only
3  * Generic DVI Connector driver
53 	struct omap_dss_device *in = ddata->in;  in dvic_connect()
58 	return in->ops.dvi->connect(in, dssdev);  in dvic_connect()
64 	struct omap_dss_device *in = ddata->in;  in dvic_disconnect()
69 	in->ops.dvi->disconnect(in, dssdev);  in dvic_disconnect()
75 	struct omap_dss_device *in = ddata->in;  in dvic_enable()
79 		return -ENODEV;  in dvic_enable()
84 	in->ops.dvi->set_timings(in, &ddata->timings);  in dvic_enable()
86 	r = in->ops.dvi->enable(in);  in dvic_enable()
90 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in dvic_enable()
98 	struct omap_dss_device *in = ddata->in;  in dvic_disable()
103 	in->ops.dvi->disable(in);  in dvic_disable()
105 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in dvic_disable()
112 	struct omap_dss_device *in = ddata->in;  in dvic_set_timings()
114 	ddata->timings = *timings;  in dvic_set_timings()
115 	dssdev->panel.timings = *timings;  in dvic_set_timings()
117 	in->ops.dvi->set_timings(in, timings);  in dvic_set_timings()
125 	*timings = ddata->timings;  in dvic_get_timings()
132 	struct omap_dss_device *in = ddata->in;  in dvic_check_timings()
134 	return in->ops.dvi->check_timings(in, timings);  in dvic_check_timings()
142 	for (retries = 3; retries > 0; retries--) {  in dvic_ddc_read()
161 		if (r != -EAGAIN)  in dvic_ddc_read()
165 	return r < 0 ? r : -EIO;  in dvic_ddc_read()
174 	if (!ddata->i2c_adapter)  in dvic_read_edid()
175 		return -ENODEV;  in dvic_read_edid()
178 	r = dvic_ddc_read(ddata->i2c_adapter, edid, l, 0);  in dvic_read_edid()
186 		l = min(EDID_LENGTH, len - EDID_LENGTH);  in dvic_read_edid()
188 		r = dvic_ddc_read(ddata->i2c_adapter, edid + EDID_LENGTH,  in dvic_read_edid()
205 	if (!ddata->i2c_adapter)  in dvic_detect()
208 	r = dvic_ddc_read(ddata->i2c_adapter, &out, 1, 0);  in dvic_detect()
233 	struct device_node *node = pdev->dev.of_node;  in dvic_probe_of()
240 		dev_err(&pdev->dev, "failed to find video source\n");  in dvic_probe_of()
244 	ddata->in = in;  in dvic_probe_of()
246 	adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);  in dvic_probe_of()
251 			dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");  in dvic_probe_of()
252 			omap_dss_put_device(ddata->in);  in dvic_probe_of()
253 			return -EPROBE_DEFER;  in dvic_probe_of()
256 		ddata->i2c_adapter = adapter;  in dvic_probe_of()
268 	if (!pdev->dev.of_node)  in dvic_probe()
269 		return -ENODEV;  in dvic_probe()
271 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in dvic_probe()
273 		return -ENOMEM;  in dvic_probe()
281 	ddata->timings = dvic_default_timings;  in dvic_probe()
283 	dssdev = &ddata->dssdev;  in dvic_probe()
284 	dssdev->driver = &dvic_driver;  in dvic_probe()
285 	dssdev->dev = &pdev->dev;  in dvic_probe()
286 	dssdev->type = OMAP_DISPLAY_TYPE_DVI;  in dvic_probe()
287 	dssdev->owner = THIS_MODULE;  in dvic_probe()
288 	dssdev->panel.timings = dvic_default_timings;  in dvic_probe()
292 		dev_err(&pdev->dev, "Failed to register panel\n");  in dvic_probe()
299 	omap_dss_put_device(ddata->in);  in dvic_probe()
301 	i2c_put_adapter(ddata->i2c_adapter);  in dvic_probe()
309 	struct omap_dss_device *dssdev = &ddata->dssdev;  in dvic_remove()
310 	struct omap_dss_device *in = ddata->in;  in dvic_remove()
312 	omapdss_unregister_display(&ddata->dssdev);  in dvic_remove()
319 	i2c_put_adapter(ddata->i2c_adapter);  in dvic_remove()
323 	{ .compatible = "omapdss,dvi-connector", },
333 		.name	= "connector-dvi",
341 MODULE_DESCRIPTION("Generic DVI Connector driver");