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>

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 875b40263b33006bf68ebb05e6b175e5dea29f7a..de78ab0caaa851ca19fcd589a251f89e4804915d 100644 (file)
--- 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");