[PATCHv3 17/41] OMAPDSS: encoder-tpd12s015: Add DT support

Tomi Valkeinen
2014-01-21T10:56:49Z

Add DT support for encoder-tpd12s015.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
.../video/omap2/displays-new/encoder-tpd12s015.c | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)

diff --git a/drivers/video/omap2/displays-new/encoder-tpd12s015.c b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
index d5c936cb217f..7e33686171e3 100644
--- a/drivers/video/omap2/displays-new/encoder-tpd12s015.c
+++ b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
+#include <linux/of_gpio.h>

#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@@ -289,6 +290,49 @@ static int tpd_probe_pdata(struct platform_device *pdev)
return 0;
}

+static int tpd_probe_of(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct device_node *node = pdev->dev.of_node;
+ struct omap_dss_device *in;
+ int gpio;
+
+ /* CT CP HPD GPIO */
+ gpio = of_get_gpio(node, 0);
+ if (!gpio_is_valid(gpio)) {
+ dev_err(&pdev->dev, "failed to parse CT CP HPD gpio\n");
+ return gpio;
+ }
+ ddata->ct_cp_hpd_gpio = gpio;
+
+ /* LS OE GPIO */
+ gpio = of_get_gpio(node, 1);
+ if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+ ddata->ls_oe_gpio = gpio;
+ } else {
+ dev_err(&pdev->dev, "failed to parse LS OE gpio\n");
+ return gpio;
+ }
+
+ /* HPD GPIO */
+ gpio = of_get_gpio(node, 2);
+ if (!gpio_is_valid(gpio)) {
+ dev_err(&pdev->dev, "failed to parse HPD gpio\n");
+ return gpio;
+ }
+ ddata->hpd_gpio = gpio;
+
+ in = omapdss_of_find_source_for_first_ep(node);
+ if (IS_ERR(in)) {
+ dev_err(&pdev->dev, "failed to find video source\n");
+ return PTR_ERR(in);
+ }
+
+ ddata->in = in;
+
+ return 0;
+}
+
static int tpd_probe(struct platform_device *pdev)
{
struct omap_dss_device *in, *dssdev;
@@ -307,6 +351,10 @@ static int tpd_probe(struct platform_device *pdev)
r = tpd_probe_pdata(pdev);
if (r)
return r;
+ } else if (pdev->dev.of_node) {
+ r = tpd_probe_of(pdev);
+ if (r)
+ return r;
} else {
return -ENODEV;
}
@@ -379,12 +427,20 @@ static int __exit tpd_remove(struct platform_device *pdev)
return 0;
}

+static const struct of_device_id tpd_of_match[] = {
+ { .compatible = "omapdss,ti,tpd12s015", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, tpd_of_match);
+
static struct platform_driver tpd_driver = {
.probe = tpd_probe,
.remove = __exit_p(tpd_remove),
.driver = {
.name = "tpd12s015",
.owner = THIS_MODULE,
+ .of_match_table = tpd_of_match,
},
};

--
1.8.3.2