omapdss: panel-tpo-td028ec1: Add DT support.

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

3 files changed, 62 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt b/Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt
new file mode 100644
index 000000000000..7175dc3740ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt
@@ -0,0 +1,30 @@
+Toppoly TD028TTEC1 Panel
+========================
+
+Required properties:
+- compatible: "toppoly,td028ttec1"
+
+Optional properties:
+- label: a symbolic name for the panel
+
+Required nodes:
+- Video port for DPI input
+
+Example
+-------
+
+lcd-panel: td028ttec1@0 {
+        compatible = "toppoly,td028ttec1";
+        reg = <0>;
+        spi-max-frequency = <100000>;
+        spi-cpol;
+        spi-cpha;
+
+        label = "lcd";
+        port {
+                lcd_in: endpoint {
+                        remote-endpoint = <&dpi_out>;
+                };
+        };
+};
+
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 16d33d831287..66a2ee030b21 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -566,6 +566,7 @@ static const char * const dss_compat_conv_list[] __initconst = {
         "svideo-connector",
         "ti,tfp410",
         "ti,tpd12s015",
+        "toppoly,td028ttec1",
 };
 
 /* prepend compatible string with "omapdss," */
diff --git a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c
index fae6adc005a7..5b3466e953b2 100644
--- a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c
+++ b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c
@@ -206,7 +206,8 @@ static int td028ttec1_panel_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);
@@ -389,6 +390,23 @@ static int td028ttec1_panel_probe_pdata(struct spi_device *spi)
         return 0;
 }
 
+static int td028ttec1_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;
+
+        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 td028ttec1_panel_probe(struct spi_device *spi)
 {
         struct panel_drv_data *ddata;
@@ -418,6 +436,10 @@ static int td028ttec1_panel_probe(struct spi_device *spi)
                 r = td028ttec1_panel_probe_pdata(spi);
                 if (r)
                         return r;
+        } else if (spi->dev.of_node) {
+                r = td028ttec1_probe_of(spi);
+                if (r)
+                        return r;
         } else {
                 return -ENODEV;
         }
@@ -463,6 +485,13 @@ static int td028ttec1_panel_remove(struct spi_device *spi)
         return 0;
 }
 
+static const struct of_device_id td028ttec1_of_match[] = {
+        { .compatible = "omapdss,toppoly,td028ttec1", },
+        {},
+};
+
+MODULE_DEVICE_TABLE(of, td028ttec1_of_match);
+
 static struct spi_driver td028ttec1_spi_driver = {
         .probe          = td028ttec1_panel_probe,
         .remove         = td028ttec1_panel_remove,
@@ -470,6 +499,7 @@ static struct spi_driver td028ttec1_spi_driver = {
         .driver         = {
                 .name   = "panel-tpo-td028ttec1",
                 .owner  = THIS_MODULE,
+                .of_match_table = td028ttec1_of_match,
         },
 };