Hi Hans,
On Mon, Jan 30, 2017 at 03:06:16PM +0100, Hans Verkuil wrote:
> @@ -1549,6 +1551,29 @@ static const struct ov7670_devtype ov7670_devdata[] = {
> },
> };
>
> +static int ov7670_init_gpio(struct i2c_client *client, struct ov7670_info
> *info)
> +{
> + /* Request the power down GPIO asserted */
You're setting both GPIOs to low state. How about just removing the
comments? I think they're just confusing.
> + info->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "pwdn",
> + GPIOD_OUT_LOW);
> + if (IS_ERR(info->pwdn_gpio)) {
> + dev_info(&client->dev, "can't get %s GPIO\n", "pwdn");
> + return PTR_ERR(info->pwdn_gpio);
> + }
> +
> + /* Request the reset GPIO deasserted */
> + info->resetb_gpio = devm_gpiod_get_optional(&client->dev, "resetb",
> + GPIOD_OUT_LOW);
> + if (IS_ERR(info->resetb_gpio)) {
> + dev_info(&client->dev, "can't get %s GPIO\n", "resetb");
> + return PTR_ERR(info->resetb_gpio);
> + }
> +
> + usleep_range(3000, 5000);
> +
> + return 0;
> +}
> +
> static int ov7670_probe(struct i2c_client *client,
> const struct i2c_device_id *id)
> {
--
Regards,
Sakari Ailus
e-mail: [email protected] XMPP: [email protected]
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