[PATCHv3 15/41] OMAPDSS: encoder-tfp410: Add DT support

Tomi Valkeinen
2014-01-21T10:56:47Z

Add DT support for encoder-tfp410.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/displays-new/encoder-tfp410.c | 43 ++++++++++++++++++++++-
1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/displays-new/encoder-tfp410.c b/drivers/video/omap2/displays-new/encoder-tfp410.c
index 4a291e756be9..e1ef972e33cd 100644
--- a/drivers/video/omap2/displays-new/encoder-tfp410.c
+++ b/drivers/video/omap2/displays-new/encoder-tfp410.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/of_gpio.h>

#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@@ -82,7 +83,8 @@ static int tfp410_enable(struct omap_dss_device *dssdev)
return 0;

in->ops.dpi->set_timings(in, &ddata->timings);
- in->ops.dpi->set_data_lines(in, ddata->data_lines);
+ if (ddata->data_lines)
+ in->ops.dpi->set_data_lines(in, ddata->data_lines);

r = in->ops.dpi->enable(in);
if (r)
@@ -179,6 +181,33 @@ static int tfp410_probe_pdata(struct platform_device *pdev)
return 0;
}

+static int tfp410_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;
+
+ gpio = of_get_gpio(node, 0);
+
+ if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+ ddata->pd_gpio = gpio;
+ } else {
+ dev_err(&pdev->dev, "failed to parse PD gpio\n");
+ return 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 tfp410_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
@@ -195,6 +224,10 @@ static int tfp410_probe(struct platform_device *pdev)
r = tfp410_probe_pdata(pdev);
if (r)
return r;
+ } else if (pdev->dev.of_node) {
+ r = tfp410_probe_of(pdev);
+ if (r)
+ return r;
} else {
return -ENODEV;
}
@@ -251,12 +284,20 @@ static int __exit tfp410_remove(struct platform_device *pdev)
return 0;
}

+static const struct of_device_id tfp410_of_match[] = {
+ { .compatible = "omapdss,ti,tfp410", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, tfp410_of_match);
+
static struct platform_driver tfp410_driver = {
.probe = tfp410_probe,
.remove = __exit_p(tfp410_remove),
.driver = {
.name = "tfp410",
.owner = THIS_MODULE,
+ .of_match_table = tfp410_of_match,
},
};

--
1.8.3.2