static int fpga_csi_bridge_probe(struct i2c_client *client)
{
struct fpga_csi_bridge_priv *priv;
struct device *dev = &client->dev;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->client = client;
mutex_init(&priv->lock);
i2c_set_clientdata(client, priv);
priv->reset_gpio = of_get_named_gpio(dev->of_node, "rst-gpios", 0);
if (gpio_is_valid(priv->reset_gpio)) {
ret = devm_gpio_request_one(dev, priv->reset_gpio, GPIOF_OUT_INIT_HIGH,
"fpga_csi_bridge_mipi_reset");
if (ret < 0) {
dev_err(dev, "Failed to set reset pin\n");
return ret;
}
}
/* power-up completes in approx 2ms, according to specifications */
usleep_range(2000, 2500);
ret = fpga_csi_bridge_parse_dt(priv);
if (ret)
return ret;
ret = fpga_csi_bridge_v4l2_init(priv);
if (ret)
return ret;
return 0;
}