[PATCH 1/2] omapdss: panel-tpo-td028ec1: Add DT support.

Marek Belisko
2014-04-22T21:15:01Z

Signed-off-by: Marek Belisko <marek@goldelico.com>
---
.../bindings/video/toppoly,td028ttec1.txt | 30 ++++++++++++++++++++
.../omap2/displays-new/panel-tpo-td028ttec1.c | 32 +++++++++++++++++++++-
2 files changed, 61 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt

diff --git a/Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt b/Documentation/devicetree/bindings/video/toppoly,td028ttec1.txt
new file mode 100644
index 0000000..7175dc3
--- /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/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c
index fae6adc..70a56ff 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 = "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,
},
};

--
1.8.3.2