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Date:   Sun, 4 Dec 2016 11:16:04 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Brian Masney <masneyb@...tation.org>, linux-iio@...r.kernel.org
Cc:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        linux-kernel@...r.kernel.org, ldewangan@...dia.com
Subject: Re: [PATCH 02/19] staging: iio: isl29028: remove enable flag from
 isl29028_enable_proximity()

On 04/12/16 02:19, Brian Masney wrote:
> isl29028_enable_proximity() has a boolean argument named enable. This
> function is only called once and the enable flag is set to true in that
> call. This patch removes the enable parameter from that function.
> 
> Signed-off-by: Brian Masney <masneyb@...tation.org>
On second thoughts (stupid email is hiding somewhere to be sent when I have wifi
so can't reply to it) perhaps this is a coarse way of only turning proximity on if
the LED is present?  Not sure...
> ---
>  drivers/staging/iio/light/isl29028.c | 10 ++++------
>  1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c
> index 4e35d00..c8e234d 100644
> --- a/drivers/staging/iio/light/isl29028.c
> +++ b/drivers/staging/iio/light/isl29028.c
> @@ -93,15 +93,13 @@ static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
>  				  sel << ISL29028_CONF_PROX_SLP_SH);
>  }
>  
> -static int isl29028_enable_proximity(struct isl29028_chip *chip, bool enable)
> +static int isl29028_enable_proximity(struct isl29028_chip *chip)
>  {
>  	int ret;
> -	int val = 0;
>  
> -	if (enable)
> -		val = ISL29028_CONF_PROX_EN;
>  	ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
> -				 ISL29028_CONF_PROX_EN_MASK, val);
> +				 ISL29028_CONF_PROX_EN_MASK,
> +				 ISL29028_CONF_PROX_EN);
>  	if (ret < 0)
>  		return ret;
>  
> @@ -215,7 +213,7 @@ static int isl29028_proxim_get(struct isl29028_chip *chip, int *prox_data)
>  	int ret;
>  
>  	if (!chip->enable_prox) {
> -		ret = isl29028_enable_proximity(chip, true);
> +		ret = isl29028_enable_proximity(chip);
>  		if (ret < 0)
>  			return ret;
>  		chip->enable_prox = true;
> 

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