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OMAPDSS: encoder-tpd12s015: Add DT support

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Add DT support for encoder-tpd12s015.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-07-30 10:37:17 +03:00
parent 2cbe2304ba
commit 5e4c89c018
1 changed files with 56 additions and 0 deletions
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56
drivers/video/omap2/displays-new/encoder-tpd12s015.c
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@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/of_gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@ -289,6 +290,49 @@ static int tpd_probe_pdata(struct platform_device *pdev)
return 0;
}
static int tpd_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct device_node *node = pdev->dev.of_node;
struct omap_dss_device *in;
int gpio;
/* CT CP HPD GPIO */
gpio = of_get_gpio(node, 0);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "failed to parse CT CP HPD gpio\n");
return gpio;
}
ddata->ct_cp_hpd_gpio = gpio;
/* LS OE GPIO */
gpio = of_get_gpio(node, 1);
if (gpio_is_valid(gpio) || gpio == -ENOENT) {
ddata->ls_oe_gpio = gpio;
} else {
dev_err(&pdev->dev, "failed to parse LS OE gpio\n");
return gpio;
}
/* HPD GPIO */
gpio = of_get_gpio(node, 2);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "failed to parse HPD gpio\n");
return gpio;
}
ddata->hpd_gpio = gpio;
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&pdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
return 0;
}
static int tpd_probe(struct platform_device *pdev)
{
struct omap_dss_device *in, *dssdev;
@ -307,6 +351,10 @@ static int tpd_probe(struct platform_device *pdev)
r = tpd_probe_pdata(pdev);
if (r)
return r;
} else if (pdev->dev.of_node) {
r = tpd_probe_of(pdev);
if (r)
return r;
} else {
return -ENODEV;
}
@ -379,12 +427,20 @@ static int __exit tpd_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id tpd_of_match[] = {
{ .compatible = "omapdss,ti,tpd12s015", },
{},
};
MODULE_DEVICE_TABLE(of, tpd_of_match);
static struct platform_driver tpd_driver = {
.probe = tpd_probe,
.remove = __exit_p(tpd_remove),
.driver = {
.name = "tpd12s015",
.owner = THIS_MODULE,
.of_match_table = tpd_of_match,
},
};