[PATCH 2/4] OMAPDSS: ACX565AKM: Add DT support

[Sebastian Reichel]

This adds DT support to the ACX565AKM panel driver.

Signed-off-by: Sebastian Reichel <s...@debian.org>
---
 .../omap2/displays-new/panel-sony-acx565akm.c      | 35 +++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c 
b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
index d94f35d..942b8d4 100644
--- a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
+++ b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
@@ -30,6 +30,8 @@
 #include <linux/backlight.h>
 #include <linux/fb.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -531,7 +533,9 @@ static int acx565akm_panel_power_on(struct omap_dss_device 
*dssdev)
        dev_dbg(&ddata->spi->dev, "%s\n", __func__);
 
        in->ops.sdi->set_timings(in, &ddata->videomode);
-       in->ops.sdi->set_datapairs(in, ddata->datapairs);
+
+       if (ddata->datapairs >= 0)
+               in->ops.sdi->set_datapairs(in, ddata->datapairs);
 
        r = in->ops.sdi->enable(in);
        if (r) {
@@ -710,6 +714,30 @@ static int acx565akm_probe_pdata(struct spi_device *spi)
        return 0;
 }
 
+static int acx565akm_probe_of(struct spi_device *spi)
+{
+       struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
+       struct device_node *np = spi->dev.of_node;
+       struct omap_dss_device *dssdev;
+       int ret;
+
+       ddata->reset_gpio = of_get_named_gpio(np, "reset-gpio", 0);
+
+       ddata->datapairs = -1;
+       ddata->in = omapdss_of_find_source_for_first_ep(np);
+       if (IS_ERR(ddata->in)) {
+               dev_err(&spi->dev, "failed to find video source\n");
+               return PTR_ERR(ddata->in);
+       }
+
+       dssdev = &ddata->dssdev;
+       ret = of_property_read_string(np, "label", &dssdev->name);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+
 static int acx565akm_probe(struct spi_device *spi)
 {
        struct panel_drv_data *ddata;
@@ -737,7 +765,12 @@ static int acx565akm_probe(struct spi_device *spi)
                r = acx565akm_probe_pdata(spi);
                if (r)
                        return r;
+       } else if (spi->dev.of_node) {
+               r = acx565akm_probe_of(spi);
+               if (r)
+                       return r;
        } else {
+               dev_err(&spi->dev, "platform data missing!\n");
                return -ENODEV;
        }
 
-- 
1.8.5.1

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