Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/omap2/displays-new/panel-dpi.c | 75 ++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/drivers/video/omap2/displays-new/panel-dpi.c b/drivers/video/omap2/displays-new/panel-dpi.c
index 5f8f7e7..31bd184 100644
--- a/drivers/video/omap2/displays-new/panel-dpi.c
+++ b/drivers/video/omap2/displays-new/panel-dpi.c
@@ -13,9 +13,12 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
+#include <video/of_display_timing.h>
struct panel_drv_data {
struct omap_dss_device dssdev;
@@ -182,6 +185,66 @@ static int panel_dpi_probe_pdata(struct platform_device *pdev)
return 0;
}
+static int panel_dpi_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;
+ struct device_node *src_node;
+ int r, datalines;
+ struct display_timing timing;
+ struct videomode vm;
+ int gpio;
+
+ src_node = of_parse_phandle(node, "video-source", 0);
+ if (!src_node) {
+ dev_err(&pdev->dev, "failed to parse video source\n");
+ return -ENODEV;
+ }
+
+ in = omap_dss_find_output_by_node(src_node);
+ if (in == NULL) {
+ dev_err(&pdev->dev, "failed to find video source\n");
+ return -EPROBE_DEFER;
+ }
+ ddata->in = in;
+
+ r = of_property_read_u32(node, "data-lines", &datalines);
+ if (r) {
+ dev_err(&pdev->dev, "failed to parse datalines\n");
+ return r;
+ }
+
+ ddata->data_lines = datalines;
+
+ gpio = of_get_gpio(node, 0);
+ if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+ ddata->enable_gpio = gpio;
+ } else {
+ dev_err(&pdev->dev, "failed to parse enable gpio\n");
+ return gpio;
+ }
+
+ gpio = of_get_gpio(node, 1);
+ if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+ ddata->backlight_gpio = gpio;
+ } else {
+ dev_err(&pdev->dev, "failed to parse backlight gpio\n");
+ return gpio;
+ }
+
+ r = of_get_display_timing(node, "panel-timing", &timing);
+ if (r) {
+ dev_err(&pdev->dev, "failed to get video timing\n");
+ return r;
+ }
+
+ videomode_from_timing(&timing, &vm);
+ videomode_to_omap_video_timings(&vm, &ddata->videomode);
+
+ return 0;
+}
+
static int panel_dpi_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
@@ -198,6 +261,10 @@ static int panel_dpi_probe(struct platform_device *pdev)
r = panel_dpi_probe_pdata(pdev);
if (r)
return r;
+ } else if (pdev->dev.of_node) {
+ r = panel_dpi_probe_of(pdev);
+ if (r)
+ return r;
} else {
return -ENODEV;
}
@@ -254,12 +321,20 @@ static int __exit panel_dpi_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id panel_dpi_of_match[] = {
+ { .compatible = "panel-dpi", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, panel_dpi_of_match);
+
static struct platform_driver panel_dpi_driver = {
.probe = panel_dpi_probe,
.remove = __exit_p(panel_dpi_remove),
.driver = {
.name = "panel-dpi",
.owner = THIS_MODULE,
+ .of_match_table = panel_dpi_of_match,
},
};
--
1.8.1.2
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