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path: root/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c
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Diffstat (limited to 'drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c')
-rw-r--r--drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c b/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c
index 996fa004b48c..3595f111aa35 100644
--- a/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c
+++ b/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c
@@ -16,6 +16,7 @@
#include <linux/spi/spi.h>
#include <linux/fb.h>
#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@@ -156,7 +157,8 @@ static int nec_8048_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);
@@ -258,6 +260,34 @@ static int nec_8048_probe_pdata(struct spi_device *spi)
return 0;
}
+static int nec_8048_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->res_gpio = gpio;
+
+ /* XXX the panel spec doesn't mention any QVGA pin?? */
+ ddata->qvga_gpio = -ENOENT;
+
+ 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 nec_8048_probe(struct spi_device *spi)
{
struct panel_drv_data *ddata;
@@ -289,6 +319,10 @@ static int nec_8048_probe(struct spi_device *spi)
r = nec_8048_probe_pdata(spi);
if (r)
return r;
+ } else if (spi->dev.of_node) {
+ r = nec_8048_probe_of(spi);
+ if (r)
+ return r;
} else {
return -ENODEV;
}
@@ -377,11 +411,19 @@ static SIMPLE_DEV_PM_OPS(nec_8048_pm_ops, nec_8048_suspend,
#define NEC_8048_PM_OPS NULL
#endif
+static const struct of_device_id nec_8048_of_match[] = {
+ { .compatible = "omapdss,nec,nl8048hl11", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, nec_8048_of_match);
+
static struct spi_driver nec_8048_driver = {
.driver = {
.name = "panel-nec-nl8048hl11",
.owner = THIS_MODULE,
.pm = NEC_8048_PM_OPS,
+ .of_match_table = nec_8048_of_match,
},
.probe = nec_8048_probe,
.remove = nec_8048_remove,
@@ -389,6 +431,7 @@ static struct spi_driver nec_8048_driver = {
module_spi_driver(nec_8048_driver);
+MODULE_ALIAS("spi:nec,nl8048hl11");
MODULE_AUTHOR("Erik Gilling <konkers@android.com>");
MODULE_DESCRIPTION("NEC-NL8048HL11 Driver");
MODULE_LICENSE("GPL");