OMAPDSS: Panel TPO-TD043MTEA1 DT support

Add DT support for panel TPO-TD043MTEA1.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>

1 files changed, 41 insertions, 1 deletions

diff --git a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c
index 875b40263b33..de78ab0caaa8 100644
--- a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c
@@ -17,6 +17,7 @@
 #include <linux/gpio.h>
 #include <linux/err.h>
 #include <linux/slab.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -376,7 +377,8 @@ static int tpo_td043_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);
@@ -489,6 +491,31 @@ static int tpo_td043_probe_pdata(struct spi_device *spi)
         return 0;
 }
 
+static int tpo_td043_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;
+        int gpio;
+
+        gpio = of_get_named_gpio(node, "reset-gpios", 0);
+        if (!gpio_is_valid(gpio)) {
+                dev_err(&spi->dev, "failed to parse enable gpio\n");
+                return gpio;
+        }
+        ddata->nreset_gpio = gpio;
+
+        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 tpo_td043_probe(struct spi_device *spi)
 {
         struct panel_drv_data *ddata;
@@ -518,6 +545,10 @@ static int tpo_td043_probe(struct spi_device *spi)
                 r = tpo_td043_probe_pdata(spi);
                 if (r)
                         return r;
+        } else if (spi->dev.of_node) {
+                r = tpo_td043_probe_of(spi);
+                if (r)
+                        return r;
         } else {
                 return -ENODEV;
         }
@@ -629,11 +660,19 @@ static int tpo_td043_spi_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(tpo_td043_spi_pm,
         tpo_td043_spi_suspend, tpo_td043_spi_resume);
 
+static const struct of_device_id tpo_td043_of_match[] = {
+        { .compatible = "omapdss,tpo,td043mtea1", },
+        {},
+};
+
+MODULE_DEVICE_TABLE(of, tpo_td043_of_match);
+
 static struct spi_driver tpo_td043_spi_driver = {
         .driver = {
                 .name   = "panel-tpo-td043mtea1",
                 .owner  = THIS_MODULE,
                 .pm     = &tpo_td043_spi_pm,
+                .of_match_table = tpo_td043_of_match,
         },
         .probe  = tpo_td043_probe,
         .remove = tpo_td043_remove,
@@ -641,6 +680,7 @@ static struct spi_driver tpo_td043_spi_driver = {
 
 module_spi_driver(tpo_td043_spi_driver);
 
+MODULE_ALIAS("spi:tpo,td043mtea1");
 MODULE_AUTHOR("Gražvydas Ignotas <notasas@gmail.com>");
 MODULE_DESCRIPTION("TPO TD043MTEA1 LCD Driver");
 MODULE_LICENSE("GPL");