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/*
* Analog TV Connector driver
*
* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include "../dss/omapdss.h"
struct panel_drv_data {
struct omap_dss_device dssdev;
struct device *dev;
};
#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
static int tvc_connect(struct omap_dss_device *src,
struct omap_dss_device *dst)
{
return 0;
}
static void tvc_disconnect(struct omap_dss_device *src,
struct omap_dss_device *dst)
{
}
static int tvc_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *src = dssdev->src;
int r;
dev_dbg(ddata->dev, "enable\n");
if (!omapdss_device_is_connected(dssdev))
return -ENODEV;
if (omapdss_device_is_enabled(dssdev))
return 0;
r = src->ops->enable(src);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return r;
}
static void tvc_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct omap_dss_device *src = dssdev->src;
dev_dbg(ddata->dev, "disable\n");
if (!omapdss_device_is_enabled(dssdev))
return;
src->ops->disable(src);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static const struct omap_dss_device_ops tvc_ops = {
.connect = tvc_connect,
.disconnect = tvc_disconnect,
.enable = tvc_enable,
.disable = tvc_disable,
};
static int tvc_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
struct omap_dss_device *dssdev;
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
platform_set_drvdata(pdev, ddata);
ddata->dev = &pdev->dev;
dssdev = &ddata->dssdev;
dssdev->ops = &tvc_ops;
dssdev->dev = &pdev->dev;
dssdev->type = OMAP_DISPLAY_TYPE_VENC;
dssdev->owner = THIS_MODULE;
dssdev->of_ports = BIT(0);
omapdss_display_init(dssdev);
omapdss_device_register(dssdev);
return 0;
}
static int __exit tvc_remove(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
omapdss_device_unregister(&ddata->dssdev);
tvc_disable(dssdev);
return 0;
}
static const struct of_device_id tvc_of_match[] = {
{ .compatible = "omapdss,svideo-connector", },
{ .compatible = "omapdss,composite-video-connector", },
{},
};
MODULE_DEVICE_TABLE(of, tvc_of_match);
static struct platform_driver tvc_connector_driver = {
.probe = tvc_probe,
.remove = __exit_p(tvc_remove),
.driver = {
.name = "connector-analog-tv",
.of_match_table = tvc_of_match,
.suppress_bind_attrs = true,
},
};
module_platform_driver(tvc_connector_driver);
MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
MODULE_DESCRIPTION("Analog TV Connector driver");
MODULE_LICENSE("GPL");
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