Re: [PATCHv2 3/6] hwmon: (socfpga) Add hardware monitoring support on SoCFPGA platforms

[Dinh Nguyen]

Hi Krzysztof,

On 5/9/2023 1:57 AM, Krzysztof Kozlowski wrote:
> On 08/05/2023 23:28, dinh.nguyen@xxxxxxxxxxxxxxx wrote:
> > From: Dinh Nguyen <dinh.nguyen@xxxxxxxxxxxxxxx>
> >
> > The driver supports 64-bit SoCFPGA platforms for temperature and voltage
> > reading using the platform's SDM(Secure Device Manager). The driver
> > also uses the Stratix10 Service layer driver.
> >
> > This driver only supports OF SoCFPGA 64-bit platforms.
> (...)
>
> > +static int socfpga_probe_child_from_dt(struct device *dev,
> > +				       struct device_node *child,
> > +				       struct socfpga_hwmon_priv *priv)
> > +{
> > +	struct device_node *grandchild;
> > +	const char *label;
> > +	const char *type;
> > +	u32 val;
> > +	int ret;
> > +
> > +	if (of_property_read_string(child, "name", &type))
> > +		return dev_err_probe(dev, -EINVAL, "No type for %pOF\n", child);
> > +
> > +	for_each_child_of_node(child, grandchild) {
> > +		ret = of_property_read_u32(grandchild, "reg", &val);
> > +		if (ret)
> > +			return dev_err_probe(dev, ret, "missing reg property of %pOF\n",
> > +					     grandchild);
> Where do you drop child reference?

Not sure what you mean here? Can you clarify?

Thanks,

Dinh