linux-kernel - Re: [PATCH v3 01/16] iio: adc: axp20x_adc: put ADC rate setting in a per-variant function

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Date:   Sun, 21 Jan 2018 12:13:19 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>
Cc:     knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        robh+dt@...nel.org, mark.rutland@....com, wens@...e.org,
        sre@...nel.org, linux@...linux.org.uk,
        maxime.ripard@...e-electrons.com, lee.jones@...aro.org,
        linux-iio@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        thomas.petazzoni@...e-electrons.com, linux-sunxi@...glegroups.com,
        julian.calaby@...il.com
Subject: Re: [PATCH v3 01/16] iio: adc: axp20x_adc: put ADC rate setting in
 a per-variant function

On Mon, 15 Jan 2018 11:33:35 +0100
Quentin Schulz <quentin.schulz@...e-electrons.com> wrote:

> To prepare for a new comer that set a different register with different
> values, move rate setting in a function that is specific to each AXP
> variant.
> 
> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
Applied to the togreg branch of iio.git and pushed out as testing.

Thanks,

Jonathan

> ---
>  drivers/iio/adc/axp20x_adc.c | 18 +++++++++++-------
>  1 file changed, 11 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
> index a30a972..3fc1b06 100644
> --- a/drivers/iio/adc/axp20x_adc.c
> +++ b/drivers/iio/adc/axp20x_adc.c
> @@ -470,14 +470,18 @@ static const struct iio_info axp22x_adc_iio_info = {
>  	.read_raw = axp22x_read_raw,
>  };
>  
> -static int axp20x_adc_rate(int rate)
> +static int axp20x_adc_rate(struct axp20x_adc_iio *info, int rate)
>  {
> -	return AXP20X_ADC_RATE_HZ(rate);
> +	return regmap_update_bits(info->regmap, AXP20X_ADC_RATE,
> +				  AXP20X_ADC_RATE_MASK,
> +				  AXP20X_ADC_RATE_HZ(rate));
>  }
>  
> -static int axp22x_adc_rate(int rate)
> +static int axp22x_adc_rate(struct axp20x_adc_iio *info, int rate)
>  {
> -	return AXP22X_ADC_RATE_HZ(rate);
> +	return regmap_update_bits(info->regmap, AXP20X_ADC_RATE,
> +				  AXP20X_ADC_RATE_MASK,
> +				  AXP22X_ADC_RATE_HZ(rate));
>  }
>  
>  struct axp_data {
> @@ -485,7 +489,8 @@ struct axp_data {
>  	int				num_channels;
>  	struct iio_chan_spec const	*channels;
>  	unsigned long			adc_en1_mask;
> -	int				(*adc_rate)(int rate);
> +	int				(*adc_rate)(struct axp20x_adc_iio *info,
> +						    int rate);
>  	bool				adc_en2;
>  	struct iio_map			*maps;
>  };
> @@ -554,8 +559,7 @@ static int axp20x_probe(struct platform_device *pdev)
>  				   AXP20X_ADC_EN2_MASK, AXP20X_ADC_EN2_MASK);
>  
>  	/* Configure ADCs rate */
> -	regmap_update_bits(info->regmap, AXP20X_ADC_RATE, AXP20X_ADC_RATE_MASK,
> -			   info->data->adc_rate(100));
> +	info->data->adc_rate(info, 100);
>  
>  	ret = iio_map_array_register(indio_dev, info->data->maps);
>  	if (ret < 0) {