Vision: Add in Regulator
If there is no regulator node, it should fall back to a regulator-dummy.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
diff --git a/drivers/media/i2c/vision.c b/drivers/media/i2c/vision.c
index 0b5e5b0..1c90109 100644
--- a/drivers/media/i2c/vision.c
+++ b/drivers/media/i2c/vision.c
@@ -11,6 +11,8 @@
#include <linux/slab.h>
#include <linux/videodev2.h>
+#include <linux/regulator/consumer.h>
+
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
@@ -136,6 +138,8 @@ struct max9286_device {
struct v4l2_subdev sd;
struct media_pad pad;
struct v4l2_ctrl_handler ctrls;
+
+ struct regulator *regulator; /* PoC */
};
//TODO: remove
@@ -762,6 +766,27 @@ static int max9286_initialize(struct max9286_device *dev)
return ret;
}
+ dev->regulator = regulator_get(&dev->client->dev, "poc");
+ if (IS_ERR(dev->regulator)) {
+ if (PTR_ERR(dev->regulator) != -EPROBE_DEFER)
+ dev_err(&dev->client->dev,
+ "Unable to get PoC regulator (%ld)\n",
+ PTR_ERR(dev->regulator));
+
+ dev_err(&dev->client->dev, "Didn't get PoC regulator (%ld)\n", PTR_ERR(dev->regulator));
+ ret = PTR_ERR(dev->regulator);
+ dev->regulator = NULL;
+
+ return ret;
+ }
+
+ /* Bring up any Power Regulators for the Power over Coax */
+ ret = regulator_enable(dev->regulator);
+ if (ret < 0) {
+ dev_err(&dev->client->dev, "Unable to turn PoC on\n");
+ return ret;
+ }
+
/* Configure the de-serializer */
ret = max9286_configure(dev);
if (ret < 0) {
