1 // SPDX-License-Identifier: GPL-2.0-only
3  * TFP410 DPI-to-DVI encoder driver
35 	struct omap_dss_device *in = ddata->in;  in tfp410_connect()
39 		return -EBUSY;  in tfp410_connect()
41 	r = in->ops.dpi->connect(in, dssdev);  in tfp410_connect()
45 	dst->src = dssdev;  in tfp410_connect()
46 	dssdev->dst = dst;  in tfp410_connect()
55 	struct omap_dss_device *in = ddata->in;  in tfp410_disconnect()
61 	WARN_ON(dst != dssdev->dst);  in tfp410_disconnect()
62 	if (dst != dssdev->dst)  in tfp410_disconnect()
65 	dst->src = NULL;  in tfp410_disconnect()
66 	dssdev->dst = NULL;  in tfp410_disconnect()
68 	in->ops.dpi->disconnect(in, &ddata->dssdev);  in tfp410_disconnect()
74 	struct omap_dss_device *in = ddata->in;  in tfp410_enable()
78 		return -ENODEV;  in tfp410_enable()
83 	in->ops.dpi->set_timings(in, &ddata->timings);  in tfp410_enable()
84 	if (ddata->data_lines)  in tfp410_enable()
85 		in->ops.dpi->set_data_lines(in, ddata->data_lines);  in tfp410_enable()
87 	r = in->ops.dpi->enable(in);  in tfp410_enable()
91 	if (ddata->pd_gpio)  in tfp410_enable()
92 		gpiod_set_value_cansleep(ddata->pd_gpio, 0);  in tfp410_enable()
94 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;  in tfp410_enable()
102 	struct omap_dss_device *in = ddata->in;  in tfp410_disable()
107 	if (ddata->pd_gpio)  in tfp410_disable()
108 		gpiod_set_value_cansleep(ddata->pd_gpio, 1);  in tfp410_disable()
110 	in->ops.dpi->disable(in);  in tfp410_disable()
112 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;  in tfp410_disable()
117 	timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;  in tfp410_fix_timings()
118 	timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;  in tfp410_fix_timings()
119 	timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH;  in tfp410_fix_timings()
126 	struct omap_dss_device *in = ddata->in;  in tfp410_set_timings()
130 	ddata->timings = *timings;  in tfp410_set_timings()
131 	dssdev->panel.timings = *timings;  in tfp410_set_timings()
133 	in->ops.dpi->set_timings(in, timings);  in tfp410_set_timings()
141 	*timings = ddata->timings;  in tfp410_get_timings()
148 	struct omap_dss_device *in = ddata->in;  in tfp410_check_timings()
152 	return in->ops.dpi->check_timings(in, timings);  in tfp410_check_timings()
173 	if (!pdev->dev.of_node)  in tfp410_probe()
174 		return -ENODEV;  in tfp410_probe()
176 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in tfp410_probe()
178 		return -ENOMEM;  in tfp410_probe()
182 	ddata->pd_gpio = devm_gpiod_get_optional(&pdev->dev, "powerdown",  in tfp410_probe()
184 	r = PTR_ERR_OR_ZERO(ddata->pd_gpio);  in tfp410_probe()
186 		dev_err(&pdev->dev, "Failed to request PD GPIO: %d\n", r);  in tfp410_probe()
190 	gpiod_set_consumer_name(ddata->pd_gpio, "tfp410 PD");  in tfp410_probe()
192 	ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);  in tfp410_probe()
193 	r = PTR_ERR_OR_ZERO(ddata->in);  in tfp410_probe()
195 		dev_err(&pdev->dev, "failed to find video source: %d\n", r);  in tfp410_probe()
199 	dssdev = &ddata->dssdev;  in tfp410_probe()
200 	dssdev->ops.dvi = &tfp410_dvi_ops;  in tfp410_probe()
201 	dssdev->dev = &pdev->dev;  in tfp410_probe()
202 	dssdev->type = OMAP_DISPLAY_TYPE_DPI;  in tfp410_probe()
203 	dssdev->output_type = OMAP_DISPLAY_TYPE_DVI;  in tfp410_probe()
204 	dssdev->owner = THIS_MODULE;  in tfp410_probe()
205 	dssdev->phy.dpi.data_lines = ddata->data_lines;  in tfp410_probe()
206 	dssdev->port_num = 1;  in tfp410_probe()
210 		dev_err(&pdev->dev, "Failed to register output\n");  in tfp410_probe()
216 	omap_dss_put_device(ddata->in);  in tfp410_probe()
223 	struct omap_dss_device *dssdev = &ddata->dssdev;  in tfp410_remove()
224 	struct omap_dss_device *in = ddata->in;  in tfp410_remove()
226 	omapdss_unregister_output(&ddata->dssdev);  in tfp410_remove()
234 		tfp410_disconnect(dssdev, dssdev->dst);  in tfp410_remove()
258 MODULE_DESCRIPTION("TFP410 DPI to DVI encoder driver");