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OMAPDSS: panel-lgphilips-lb035q02: Add DT support 

Add DT support for panel-lgphilips-lb035q02.

We disable the use of the backlight_gpio as it should be handled via
backlight framework with DT boots.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Florian Vaussard <florian.vaussard@epfl.ch>
This commit is contained in:
Tomi Valkeinen 2014-05-15 12:50:00 +03:00
parent fbf7309823
commit 1b71f1047e
1 changed files with 44 additions and 1 deletions
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45
drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
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@ -159,7 +159,8 @@ static int lb035q02_enable(struct omap_dss_device *dssdev)
if (omapdss_device_is_enabled(dssdev))
return 0;
in->ops.dpi->set_data_lines(in, ddata->data_lines);
if (ddata->data_lines)
in->ops.dpi->set_data_lines(in, ddata->data_lines);
in->ops.dpi->set_timings(in, &ddata->videomode);
r = in->ops.dpi->enable(in);
@ -277,6 +278,35 @@ err_gpio:
return r;
}
static int lb035q02_probe_of(struct spi_device *spi)
{
struct device_node *node = spi->dev.of_node;
struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
struct omap_dss_device *in;
struct gpio_desc *gpio;
gpio = devm_gpiod_get(&spi->dev, "enable");
if (IS_ERR(gpio)) {
dev_err(&spi->dev, "failed to parse enable gpio\n");
return PTR_ERR(gpio);
} else {
gpiod_direction_output(gpio, 0);
ddata->enable_gpio = gpio;
}
ddata->backlight_gpio = -ENOENT;
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&spi->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
return 0;
}
static int lb035q02_panel_spi_probe(struct spi_device *spi)
{
struct panel_drv_data *ddata;
@ -295,6 +325,10 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
r = lb035q02_probe_pdata(spi);
if (r)
return r;
} else if (spi->dev.of_node) {
r = lb035q02_probe_of(spi);
if (r)
return r;
} else {
return -ENODEV;
}
@ -346,17 +380,26 @@ static int lb035q02_panel_spi_remove(struct spi_device *spi)
return 0;
}
static const struct of_device_id lb035q02_of_match[] = {
{ .compatible = "omapdss,lgphilips,lb035q02", },
{},
};
MODULE_DEVICE_TABLE(of, lb035q02_of_match);
static struct spi_driver lb035q02_spi_driver = {
.probe = lb035q02_panel_spi_probe,
.remove = lb035q02_panel_spi_remove,
.driver = {
.name = "panel_lgphilips_lb035q02",
.owner = THIS_MODULE,
.of_match_table = lb035q02_of_match,
},
};
module_spi_driver(lb035q02_spi_driver);
MODULE_ALIAS("spi:lgphilips,lb035q02");
MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
MODULE_DESCRIPTION("LG.Philips LB035Q02 LCD Panel driver");
MODULE_LICENSE("GPL");