XXX ULPS and backlight missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/omap2/displays-new/panel-dsi-cm.c | 87 +++++++++++++++++++++++++
1 file changed, 87 insertions(+)
diff --git a/drivers/video/omap2/displays-new/panel-dsi-cm.c b/drivers/video/omap2/displays-new/panel-dsi-cm.c
index aaaea64..f65ea4d 100644
--- a/drivers/video/omap2/displays-new/panel-dsi-cm.c
+++ b/drivers/video/omap2/displays-new/panel-dsi-cm.c
@@ -22,6 +22,8 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@@ -1156,6 +1158,79 @@ static int dsicm_probe_pdata(struct platform_device *pdev)
return 0;
}
+static int dsicm_probe_of(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct omap_dss_device *in;
+ struct property *prop;
+ struct device_node *src_node;
+ u32 lane_arr[10];
+ int gpio, len, num_pins;
+ int r, i;
+
+ src_node = of_parse_phandle(node, "video-source", 0);
+ if (!src_node) {
+ dev_err(&pdev->dev, "failed to parse video source\n");
+ return -ENODEV;
+ }
+
+ in = omap_dss_find_output_by_node(src_node);
+ if (in == NULL) {
+ dev_err(&pdev->dev, "failed to find video source\n");
+ return -EPROBE_DEFER;
+ }
+ ddata->in = in;
+
+ gpio = of_get_gpio(node, 0);
+ if (!gpio_is_valid(gpio)) {
+ dev_err(&pdev->dev, "failed to parse reset gpio\n");
+ return gpio;
+ }
+ ddata->reset_gpio = gpio;
+
+ if (of_gpio_count(node) > 1) {
+ gpio = of_get_gpio(node, 1);
+
+ if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+ ddata->ext_te_gpio = gpio;
+ } else {
+ dev_err(&pdev->dev, "failed to parse TE gpio\n");
+ return gpio;
+ }
+ } else {
+ ddata->ext_te_gpio = -1;
+ }
+
+ prop = of_find_property(node, "lanes", &len);
+ if (prop == NULL) {
+ dev_err(&pdev->dev, "failed to find lane data\n");
+ return -EINVAL;
+ }
+
+ num_pins = len / sizeof(u32);
+
+ if (num_pins < 4 || num_pins % 2 != 0
+ || num_pins > ARRAY_SIZE(lane_arr)) {
+ dev_err(&pdev->dev, "bad number of lanes\n");
+ return -EINVAL;
+ }
+
+ r = of_property_read_u32_array(node, "lanes", lane_arr, num_pins);
+ if (r) {
+ dev_err(&pdev->dev, "failed to read lane data\n");
+ return r;
+ }
+
+ ddata->pin_config.num_pins = num_pins;
+ for (i = 0; i < num_pins; ++i)
+ ddata->pin_config.pins[i] = (int)lane_arr[i];
+
+ /* TODO: ulps, backlight */
+
+ return 0;
+}
+
static int dsicm_probe(struct platform_device *pdev)
{
struct backlight_properties props;
@@ -1178,6 +1253,10 @@ static int dsicm_probe(struct platform_device *pdev)
r = dsicm_probe_pdata(pdev);
if (r)
return r;
+ } else if (pdev->dev.of_node) {
+ r = dsicm_probe_of(pdev);
+ if (r)
+ return r;
} else {
return -ENODEV;
}
@@ -1320,12 +1399,20 @@ static int __exit dsicm_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id dsicm_of_match[] = {
+ { .compatible = "panel-dsi-cm", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, dsicm_of_match);
+
static struct platform_driver dsicm_driver = {
.probe = dsicm_probe,
.remove = __exit_p(dsicm_remove),
.driver = {
.name = "panel-dsi-cm",
.owner = THIS_MODULE,
+ .of_match_table = dsicm_of_match,
},
};
--
1.8.1.2
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