1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2f76ee892STomi Valkeinen /*
3f76ee892STomi Valkeinen * Analog TV Connector driver
4f76ee892STomi Valkeinen *
5f76ee892STomi Valkeinen * Copyright (C) 2013 Texas Instruments
6f76ee892STomi Valkeinen * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
7f76ee892STomi Valkeinen */
8f76ee892STomi Valkeinen
9f76ee892STomi Valkeinen #include <linux/slab.h>
10f76ee892STomi Valkeinen #include <linux/module.h>
11f76ee892STomi Valkeinen #include <linux/platform_device.h>
12f76ee892STomi Valkeinen #include <linux/of.h>
13f76ee892STomi Valkeinen
1462d9e44eSPeter Ujfalusi #include <video/omapfb_dss.h>
15f76ee892STomi Valkeinen
16f76ee892STomi Valkeinen struct panel_drv_data {
17f76ee892STomi Valkeinen struct omap_dss_device dssdev;
18f76ee892STomi Valkeinen struct omap_dss_device *in;
19f76ee892STomi Valkeinen
20f76ee892STomi Valkeinen struct device *dev;
21f76ee892STomi Valkeinen
22f76ee892STomi Valkeinen struct omap_video_timings timings;
23f76ee892STomi Valkeinen
24f76ee892STomi Valkeinen bool invert_polarity;
25f76ee892STomi Valkeinen };
26f76ee892STomi Valkeinen
27f76ee892STomi Valkeinen static const struct omap_video_timings tvc_pal_timings = {
28f76ee892STomi Valkeinen .x_res = 720,
29f76ee892STomi Valkeinen .y_res = 574,
30f76ee892STomi Valkeinen .pixelclock = 13500000,
31f76ee892STomi Valkeinen .hsw = 64,
32f76ee892STomi Valkeinen .hfp = 12,
33f76ee892STomi Valkeinen .hbp = 68,
34f76ee892STomi Valkeinen .vsw = 5,
35f76ee892STomi Valkeinen .vfp = 5,
36f76ee892STomi Valkeinen .vbp = 41,
37f76ee892STomi Valkeinen
38f76ee892STomi Valkeinen .interlace = true,
39f76ee892STomi Valkeinen };
40f76ee892STomi Valkeinen
41f76ee892STomi Valkeinen static const struct of_device_id tvc_of_match[];
42f76ee892STomi Valkeinen
43f76ee892STomi Valkeinen #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
44f76ee892STomi Valkeinen
tvc_connect(struct omap_dss_device * dssdev)45f76ee892STomi Valkeinen static int tvc_connect(struct omap_dss_device *dssdev)
46f76ee892STomi Valkeinen {
47f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
48f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
49f76ee892STomi Valkeinen
50f76ee892STomi Valkeinen dev_dbg(ddata->dev, "connect\n");
51f76ee892STomi Valkeinen
52f76ee892STomi Valkeinen if (omapdss_device_is_connected(dssdev))
53f76ee892STomi Valkeinen return 0;
54f76ee892STomi Valkeinen
5563da0977SQinglang Miao return in->ops.atv->connect(in, dssdev);
56f76ee892STomi Valkeinen }
57f76ee892STomi Valkeinen
tvc_disconnect(struct omap_dss_device * dssdev)58f76ee892STomi Valkeinen static void tvc_disconnect(struct omap_dss_device *dssdev)
59f76ee892STomi Valkeinen {
60f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
61f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
62f76ee892STomi Valkeinen
63f76ee892STomi Valkeinen dev_dbg(ddata->dev, "disconnect\n");
64f76ee892STomi Valkeinen
65f76ee892STomi Valkeinen if (!omapdss_device_is_connected(dssdev))
66f76ee892STomi Valkeinen return;
67f76ee892STomi Valkeinen
68f76ee892STomi Valkeinen in->ops.atv->disconnect(in, dssdev);
69f76ee892STomi Valkeinen }
70f76ee892STomi Valkeinen
tvc_enable(struct omap_dss_device * dssdev)71f76ee892STomi Valkeinen static int tvc_enable(struct omap_dss_device *dssdev)
72f76ee892STomi Valkeinen {
73f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
74f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
75f76ee892STomi Valkeinen int r;
76f76ee892STomi Valkeinen
77f76ee892STomi Valkeinen dev_dbg(ddata->dev, "enable\n");
78f76ee892STomi Valkeinen
79f76ee892STomi Valkeinen if (!omapdss_device_is_connected(dssdev))
80f76ee892STomi Valkeinen return -ENODEV;
81f76ee892STomi Valkeinen
82f76ee892STomi Valkeinen if (omapdss_device_is_enabled(dssdev))
83f76ee892STomi Valkeinen return 0;
84f76ee892STomi Valkeinen
85f76ee892STomi Valkeinen in->ops.atv->set_timings(in, &ddata->timings);
86f76ee892STomi Valkeinen
87f76ee892STomi Valkeinen if (!ddata->dev->of_node) {
887e902fffSPeter Ujfalusi in->ops.atv->set_type(in, OMAP_DSS_VENC_TYPE_COMPOSITE);
89f76ee892STomi Valkeinen
90f76ee892STomi Valkeinen in->ops.atv->invert_vid_out_polarity(in,
91f76ee892STomi Valkeinen ddata->invert_polarity);
92f76ee892STomi Valkeinen }
93f76ee892STomi Valkeinen
94f76ee892STomi Valkeinen r = in->ops.atv->enable(in);
95f76ee892STomi Valkeinen if (r)
96f76ee892STomi Valkeinen return r;
97f76ee892STomi Valkeinen
98f76ee892STomi Valkeinen dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
99f76ee892STomi Valkeinen
100f76ee892STomi Valkeinen return r;
101f76ee892STomi Valkeinen }
102f76ee892STomi Valkeinen
tvc_disable(struct omap_dss_device * dssdev)103f76ee892STomi Valkeinen static void tvc_disable(struct omap_dss_device *dssdev)
104f76ee892STomi Valkeinen {
105f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
106f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
107f76ee892STomi Valkeinen
108f76ee892STomi Valkeinen dev_dbg(ddata->dev, "disable\n");
109f76ee892STomi Valkeinen
110f76ee892STomi Valkeinen if (!omapdss_device_is_enabled(dssdev))
111f76ee892STomi Valkeinen return;
112f76ee892STomi Valkeinen
113f76ee892STomi Valkeinen in->ops.atv->disable(in);
114f76ee892STomi Valkeinen
115f76ee892STomi Valkeinen dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
116f76ee892STomi Valkeinen }
117f76ee892STomi Valkeinen
tvc_set_timings(struct omap_dss_device * dssdev,struct omap_video_timings * timings)118f76ee892STomi Valkeinen static void tvc_set_timings(struct omap_dss_device *dssdev,
119f76ee892STomi Valkeinen struct omap_video_timings *timings)
120f76ee892STomi Valkeinen {
121f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
122f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
123f76ee892STomi Valkeinen
124f76ee892STomi Valkeinen ddata->timings = *timings;
125f76ee892STomi Valkeinen dssdev->panel.timings = *timings;
126f76ee892STomi Valkeinen
127f76ee892STomi Valkeinen in->ops.atv->set_timings(in, timings);
128f76ee892STomi Valkeinen }
129f76ee892STomi Valkeinen
tvc_get_timings(struct omap_dss_device * dssdev,struct omap_video_timings * timings)130f76ee892STomi Valkeinen static void tvc_get_timings(struct omap_dss_device *dssdev,
131f76ee892STomi Valkeinen struct omap_video_timings *timings)
132f76ee892STomi Valkeinen {
133f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
134f76ee892STomi Valkeinen
135f76ee892STomi Valkeinen *timings = ddata->timings;
136f76ee892STomi Valkeinen }
137f76ee892STomi Valkeinen
tvc_check_timings(struct omap_dss_device * dssdev,struct omap_video_timings * timings)138f76ee892STomi Valkeinen static int tvc_check_timings(struct omap_dss_device *dssdev,
139f76ee892STomi Valkeinen struct omap_video_timings *timings)
140f76ee892STomi Valkeinen {
141f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
142f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
143f76ee892STomi Valkeinen
144f76ee892STomi Valkeinen return in->ops.atv->check_timings(in, timings);
145f76ee892STomi Valkeinen }
146f76ee892STomi Valkeinen
tvc_get_wss(struct omap_dss_device * dssdev)147f76ee892STomi Valkeinen static u32 tvc_get_wss(struct omap_dss_device *dssdev)
148f76ee892STomi Valkeinen {
149f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
150f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
151f76ee892STomi Valkeinen
152f76ee892STomi Valkeinen return in->ops.atv->get_wss(in);
153f76ee892STomi Valkeinen }
154f76ee892STomi Valkeinen
tvc_set_wss(struct omap_dss_device * dssdev,u32 wss)155f76ee892STomi Valkeinen static int tvc_set_wss(struct omap_dss_device *dssdev, u32 wss)
156f76ee892STomi Valkeinen {
157f76ee892STomi Valkeinen struct panel_drv_data *ddata = to_panel_data(dssdev);
158f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
159f76ee892STomi Valkeinen
160f76ee892STomi Valkeinen return in->ops.atv->set_wss(in, wss);
161f76ee892STomi Valkeinen }
162f76ee892STomi Valkeinen
163f76ee892STomi Valkeinen static struct omap_dss_driver tvc_driver = {
164f76ee892STomi Valkeinen .connect = tvc_connect,
165f76ee892STomi Valkeinen .disconnect = tvc_disconnect,
166f76ee892STomi Valkeinen
167f76ee892STomi Valkeinen .enable = tvc_enable,
168f76ee892STomi Valkeinen .disable = tvc_disable,
169f76ee892STomi Valkeinen
170f76ee892STomi Valkeinen .set_timings = tvc_set_timings,
171f76ee892STomi Valkeinen .get_timings = tvc_get_timings,
172f76ee892STomi Valkeinen .check_timings = tvc_check_timings,
173f76ee892STomi Valkeinen
174f76ee892STomi Valkeinen .get_resolution = omapdss_default_get_resolution,
175f76ee892STomi Valkeinen
176f76ee892STomi Valkeinen .get_wss = tvc_get_wss,
177f76ee892STomi Valkeinen .set_wss = tvc_set_wss,
178f76ee892STomi Valkeinen };
179f76ee892STomi Valkeinen
tvc_probe(struct platform_device * pdev)180f76ee892STomi Valkeinen static int tvc_probe(struct platform_device *pdev)
181f76ee892STomi Valkeinen {
182f76ee892STomi Valkeinen struct panel_drv_data *ddata;
183f76ee892STomi Valkeinen struct omap_dss_device *dssdev;
184f76ee892STomi Valkeinen int r;
185f76ee892STomi Valkeinen
186*90a687d6SDmitry Torokhov if (!pdev->dev.of_node)
187*90a687d6SDmitry Torokhov return -ENODEV;
188*90a687d6SDmitry Torokhov
189f76ee892STomi Valkeinen ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
190f76ee892STomi Valkeinen if (!ddata)
191f76ee892STomi Valkeinen return -ENOMEM;
192f76ee892STomi Valkeinen
193f76ee892STomi Valkeinen platform_set_drvdata(pdev, ddata);
194f76ee892STomi Valkeinen ddata->dev = &pdev->dev;
195f76ee892STomi Valkeinen
196*90a687d6SDmitry Torokhov ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node);
197*90a687d6SDmitry Torokhov r = PTR_ERR_OR_ZERO(ddata->in);
198*90a687d6SDmitry Torokhov if (r) {
199*90a687d6SDmitry Torokhov dev_err(&pdev->dev, "failed to find video source\n");
200f76ee892STomi Valkeinen return r;
201f76ee892STomi Valkeinen }
202f76ee892STomi Valkeinen
203f76ee892STomi Valkeinen ddata->timings = tvc_pal_timings;
204f76ee892STomi Valkeinen
205f76ee892STomi Valkeinen dssdev = &ddata->dssdev;
206f76ee892STomi Valkeinen dssdev->driver = &tvc_driver;
207f76ee892STomi Valkeinen dssdev->dev = &pdev->dev;
208f76ee892STomi Valkeinen dssdev->type = OMAP_DISPLAY_TYPE_VENC;
209f76ee892STomi Valkeinen dssdev->owner = THIS_MODULE;
210f76ee892STomi Valkeinen dssdev->panel.timings = tvc_pal_timings;
211f76ee892STomi Valkeinen
212f76ee892STomi Valkeinen r = omapdss_register_display(dssdev);
213f76ee892STomi Valkeinen if (r) {
214f76ee892STomi Valkeinen dev_err(&pdev->dev, "Failed to register panel\n");
215f76ee892STomi Valkeinen goto err_reg;
216f76ee892STomi Valkeinen }
217f76ee892STomi Valkeinen
218f76ee892STomi Valkeinen return 0;
219f76ee892STomi Valkeinen err_reg:
220f76ee892STomi Valkeinen omap_dss_put_device(ddata->in);
221f76ee892STomi Valkeinen return r;
222f76ee892STomi Valkeinen }
223f76ee892STomi Valkeinen
tvc_remove(struct platform_device * pdev)224f76ee892STomi Valkeinen static int __exit tvc_remove(struct platform_device *pdev)
225f76ee892STomi Valkeinen {
226f76ee892STomi Valkeinen struct panel_drv_data *ddata = platform_get_drvdata(pdev);
227f76ee892STomi Valkeinen struct omap_dss_device *dssdev = &ddata->dssdev;
228f76ee892STomi Valkeinen struct omap_dss_device *in = ddata->in;
229f76ee892STomi Valkeinen
230f76ee892STomi Valkeinen omapdss_unregister_display(&ddata->dssdev);
231f76ee892STomi Valkeinen
232f76ee892STomi Valkeinen tvc_disable(dssdev);
233f76ee892STomi Valkeinen tvc_disconnect(dssdev);
234f76ee892STomi Valkeinen
235f76ee892STomi Valkeinen omap_dss_put_device(in);
236f76ee892STomi Valkeinen
237f76ee892STomi Valkeinen return 0;
238f76ee892STomi Valkeinen }
239f76ee892STomi Valkeinen
240f76ee892STomi Valkeinen static const struct of_device_id tvc_of_match[] = {
241f76ee892STomi Valkeinen { .compatible = "omapdss,svideo-connector", },
242f76ee892STomi Valkeinen { .compatible = "omapdss,composite-video-connector", },
243f76ee892STomi Valkeinen {},
244f76ee892STomi Valkeinen };
245f76ee892STomi Valkeinen
246f76ee892STomi Valkeinen MODULE_DEVICE_TABLE(of, tvc_of_match);
247f76ee892STomi Valkeinen
248f76ee892STomi Valkeinen static struct platform_driver tvc_connector_driver = {
249f76ee892STomi Valkeinen .probe = tvc_probe,
250f76ee892STomi Valkeinen .remove = __exit_p(tvc_remove),
251f76ee892STomi Valkeinen .driver = {
252f76ee892STomi Valkeinen .name = "connector-analog-tv",
253f76ee892STomi Valkeinen .of_match_table = tvc_of_match,
254f76ee892STomi Valkeinen .suppress_bind_attrs = true,
255f76ee892STomi Valkeinen },
256f76ee892STomi Valkeinen };
257f76ee892STomi Valkeinen
258f76ee892STomi Valkeinen module_platform_driver(tvc_connector_driver);
259f76ee892STomi Valkeinen
260f76ee892STomi Valkeinen MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
261f76ee892STomi Valkeinen MODULE_DESCRIPTION("Analog TV Connector driver");
262f76ee892STomi Valkeinen MODULE_LICENSE("GPL");
263