Re: [PATCH v2 6/9] iio: adc: qcom-spmi-adc5: use of_device_get_match_data

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On 0903, Dmitry Baryshkov wrote:
> Use of_device_get_match_data() instead of hand-coding it manually.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---
>  drivers/iio/adc/qcom-spmi-adc5.c | 16 +++++-----------
>  1 file changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
> index c2da8f068b87..0ac0b81bab7d 100644
> --- a/drivers/iio/adc/qcom-spmi-adc5.c
> +++ b/drivers/iio/adc/qcom-spmi-adc5.c
> @@ -14,6 +14,7 @@
>  #include <linux/math64.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> +#include <linux/of_device.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
>  #include <linux/slab.h>
> @@ -807,8 +808,6 @@ static int adc5_get_dt_data(struct adc5_chip *adc, struct device_node *node)
>  	struct adc5_channel_prop prop, *chan_props;
>  	struct device_node *child;
>  	unsigned int index = 0;
> -	const struct of_device_id *id;
> -	const struct adc5_data *data;
>  	int ret;
>  
>  	adc->nchannels = of_get_available_child_count(node);
> @@ -827,24 +826,19 @@ static int adc5_get_dt_data(struct adc5_chip *adc, struct device_node *node)
>  
>  	chan_props = adc->chan_props;
>  	iio_chan = adc->iio_chans;
> -	id = of_match_node(adc5_match_table, node);
> -	if (id)
> -		data = id->data;
> -	else
> -		data = &adc5_data_pmic;
> -	adc->data = data;
> +	adc->data = of_device_get_match_data(adc->dev);

I think you're missing the else condition to fallback to default dev data incase
the device is not part of of_device_id.

Thanks,
Mani

>  
>  	for_each_available_child_of_node(node, child) {
> -		ret = adc5_get_dt_channel_data(adc, &prop, child, data);
> +		ret = adc5_get_dt_channel_data(adc, &prop, child, adc->data);
>  		if (ret) {
>  			of_node_put(child);
>  			return ret;
>  		}
>  
>  		prop.scale_fn_type =
> -			data->adc_chans[prop.channel].scale_fn_type;
> +			adc->data->adc_chans[prop.channel].scale_fn_type;
>  		*chan_props = prop;
> -		adc_chan = &data->adc_chans[prop.channel];
> +		adc_chan = &adc->data->adc_chans[prop.channel];
>  
>  		iio_chan->channel = prop.channel;
>  		iio_chan->datasheet_name = prop.datasheet_name;
> -- 
> 2.28.0
> 



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