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Commit 1b71f104 authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

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: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: default avatarFlorian Vaussard <florian.vaussard@epfl.ch>
parent fbf73098

drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c

+44 −1
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ static int lb035q02_enable(struct omap_dss_device *dssdev) 
	if (omapdss_device_is_enabled(dssdev))

		return 0;



	if (ddata->data_lines)

		in->ops.dpi->set_data_lines(in, ddata->data_lines);

	in->ops.dpi->set_timings(in, &ddata->videomode);
@@ -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");