Re: [PATCH v3 2/2] power: supply: rt9471: Add Richtek RT9471 charger driver

[Krzysztof Kozlowski]

On 18/08/2022 04:21, cy_huang wrote:
> From: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
> 
> Add support for the RT9471 3A 1-Cell Li+ battery charger.
> 
> The RT9471 is a highly-integrated 3A switch mode battery charger with
> low impedance power path to better optimize the charging efficiency.
> 
> Co-developed-by: Alina Yu <alina_yu@xxxxxxxxxxx>
> Signed-off-by: Alina Yu <alina_yu@xxxxxxxxxxx>
> Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
> ---
> Since v2:
> - Fix checkpatch error about 'foo * bar' to 'foo *bar' in psy_device_to_chip function.
> - Specify the member name directly for the use of linear range.
> 
> ---

(...)

> +
> +static DEVICE_ATTR_RW(sysoff_enable);
> +static DEVICE_ATTR_RW(charge_term_enable);
> +static DEVICE_ATTR_RW(port_detect_enable);
> +
> +static struct attribute *rt9471_sysfs_entries[] = {
> +	&dev_attr_sysoff_enable.attr,
> +	&dev_attr_charge_term_enable.attr,
> +	&dev_attr_port_detect_enable.attr,
> +	NULL

You need to document the sysfs ABI in Documentation.

> +};
> +
> +static const struct attribute_group rt9471_attr_group = {
> +	.attrs	= rt9471_sysfs_entries,
> +};
> +
> +static const struct attribute_group *rt9471_attr_groups[] = {
> +	&rt9471_attr_group,
> +	NULL
> +};

(...)

> +
> +static const struct of_device_id rt9471_of_device_id[] = {
> +	{ .compatible = "richtek,rt9471" },
> +	{}
> +};
> +MODULE_DEVICE_TABLE(of, rt9471_of_device_id);
> +
> +static struct i2c_driver rt9471_driver = {
> +	.driver = {
> +		.name = "rt9471",
> +		.owner = THIS_MODULE,

You should not need this. Run coccinelle/coccicheck on your driver.


Best regards,
Krzysztof