On 27/07/2023 10:52, Okan Sahin wrote:
> The DS4520 is a 9-bit nonvolatile (NV) I/O expander.
> It offers users a digitally programmable alternative
> to hardware jumpers and mechanical switches that are
> being used to control digital logic node.
>
> Signed-off-by: Okan Sahin <okan.sahin@xxxxxxxxxx>
...
> +static int ds4520_gpio_probe(struct i2c_client *client)
> +{
> + struct gpio_regmap_config config = { };
> + struct device *dev = &client->dev;
> + struct regmap *regmap;
> + u32 ngpio;
> + u32 base;
> + int ret;
> +
> + ret = device_property_read_u32(dev, "reg", &base);
> + if (ret) {
> + dev_err_probe(dev, ret,
> + "Missing 'reg' property.\n");
> + return -EINVAL;
Nope.
> + }
> +
> + ret = device_property_read_u32(dev, "ngpios", &ngpio);
> + if (ret) {
> + dev_err_probe(dev, ret,
> + "Missing 'ngpios' property.\n");
> + return -EINVAL;
Nope.
> + }
> +
> + regmap = devm_regmap_init_i2c(client, &ds4520_regmap_config);
> + if (IS_ERR(regmap)) {
> + ret = PTR_ERR(regmap);
> + dev_err_probe(dev, ret,
> + "Failed to allocate register map\n");
> + return ret;
That's not correct syntax. What did you receive in previous
comments/feedback?
Best regards,
Krzysztof
