This patch adds an open function to the radio-timb, which adds the DSP an tuner
to the I2C bus.
Signed-off-by: Richard Röjfors <richard.rojf...@pelagicore.com>
---
diff --git a/drivers/media/radio/radio-timb.c b/drivers/media/radio/radio-timb.c
index a185610..2b7abe2 100644
--- a/drivers/media/radio/radio-timb.c
+++ b/drivers/media/radio/radio-timb.c
@@ -141,9 +141,50 @@ static const struct v4l2_ioctl_ops timbradio_ioctl_ops = {
.vidioc_s_ctrl = timbradio_vidioc_s_ctrl
};
+static int timbradio_fops_open(struct file *file)
+{
+ struct timbradio *tr = video_drvdata(file);
+ struct i2c_adapter *adapt;
+ int err = 0;
+
+ mutex_lock(&tr->lock);
+
+ /* find the I2C bus */
+ adapt = i2c_get_adapter(tr->pdata.i2c_adapter);
+ if (!adapt) {
+ printk(KERN_ERR DRIVER_NAME": No I2C bus\n");
+ err = -ENODEV;
+ goto out;
+ }
+
+ /* now find the tuner and dsp */
+ if (!tr->sd_dsp)
+ tr->sd_dsp = v4l2_i2c_new_subdev_board(&tr->v4l2_dev, adapt,
+ tr->pdata.dsp.module_name, tr->pdata.dsp.info, NULL);
+
+ if (!tr->sd_tuner)
+ tr->sd_tuner = v4l2_i2c_new_subdev_board(&tr->v4l2_dev, adapt,
+ tr->pdata.tuner.module_name, tr->pdata.tuner.info,
+ NULL);
+
+ i2c_put_adapter(adapt);
+
+ if (!tr->sd_tuner || !tr->sd_dsp) {
+ printk(KERN_ERR DRIVER_NAME
+ ": Failed to get tuner or DSP\n");
+ err = -ENODEV;
+ goto out;
+ }
+
+out:
+ mutex_unlock(&tr->lock);
+ return err;
+}
+
static const struct v4l2_file_operations timbradio_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = video_ioctl2,
+ .open = timbradio_fops_open,
};
static int __devinit timbradio_probe(struct platform_device *pdev)
--
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