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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-05-15 12:50:00 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-05-20 14:39:39 +0300
commit1b71f1047ee17f4ba48097f134f894d7289fa7a1 (patch)
tree40a052e2ebb4bf3031dcb9751e193b3299fa5e07 /drivers/video
parentfbf7309823a15da2b96e8e15781b8ac9074b44c0 (diff)
downloadlinux-1b71f1047ee17f4ba48097f134f894d7289fa7a1.tar.bz2
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
index 6e6acd696a70..cc5b5124e0b4 100644
--- a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
@@ -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");