[RFC 08/14] OMAPDSS: panel-generic-dpi: add DT support

[Tomi Valkeinen]

Signed-off-by: Tomi Valkeinen <tomi.valkei...@ti.com>
---
 drivers/video/omap2/displays/panel-generic-dpi.c |   47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c 
b/drivers/video/omap2/displays/panel-generic-dpi.c
index cc49c48..a00c942 100644
--- a/drivers/video/omap2/displays/panel-generic-dpi.c
+++ b/drivers/video/omap2/displays/panel-generic-dpi.c
@@ -34,6 +34,7 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 #include <video/omapdss.h>
 
 #include <video/omap-panel-generic-dpi.h>
@@ -618,6 +619,42 @@ static int generic_dpi_panel_probe_pdata(struct 
platform_device *pdev)
        return 0;
 }
 
+static int generic_dpi_panel_probe_of(struct platform_device *pdev)
+{
+       struct device_node *node = pdev->dev.of_node;
+       struct panel_drv_data *drv_data = dev_get_drvdata(&pdev->dev);
+       struct panel_config *panel_config = NULL;
+       int r, i;
+       int datalines;
+       const char *panel_name;
+
+       r = of_property_read_string(node, "panel-name", &panel_name);
+       if (r)
+               return r;
+
+       for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
+               if (strcmp(panel_name, generic_dpi_panels[i].name) == 0) {
+                       panel_config = &generic_dpi_panels[i];
+                       break;
+               }
+       }
+
+       if (!panel_config)
+               return -EINVAL;
+
+       r = of_property_read_u32(node, "data-lines", &datalines);
+       if (r) {
+               dev_err(&pdev->dev, "failed to parse datalines");
+               return r;
+       }
+
+       drv_data->panel_config = panel_config;
+       drv_data->name = node->name;
+       drv_data->data_lines = datalines;
+
+       return 0;
+}
+
 static int generic_dpi_panel_probe(struct platform_device *pdev)
 {
        struct panel_drv_data *drv_data;
@@ -636,6 +673,10 @@ static int generic_dpi_panel_probe(struct platform_device 
*pdev)
                r = generic_dpi_panel_probe_pdata(pdev);
                if (r)
                        return r;
+       } else if (pdev->dev.of_node) {
+               r = generic_dpi_panel_probe_of(pdev);
+               if (r)
+                       return r;
        } else {
                return -EINVAL;
        }
@@ -754,12 +795,18 @@ static struct omap_dss_driver generic_dpi_panel_driver = {
        .get_resolution = omapdss_default_get_resolution,
 };
 
+static const struct of_device_id generic_dpi_panel_of_match[] = {
+       { .compatible = "ti,dpi_panel", },
+       {},
+};
+
 static struct platform_driver generic_dpi_panel_platform_driver = {
        .probe  = generic_dpi_panel_probe,
        .remove = __exit_p(generic_dpi_panel_remove),
        .driver = {
                .name   = "generic_dpi_panel",
                .owner  = THIS_MODULE,
+               .of_match_table = generic_dpi_panel_of_match,
        },
 };
 
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html