linux-kernel - Re: [PATCH 08/11] staging: iio: adt7316: allow adt751x to use internal vref for all dacs

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Date:   Sun, 16 Dec 2018 11:54:52 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Jeremy Fertic <jeremyfertic@...il.com>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/11] staging: iio: adt7316: allow adt751x to use
 internal vref for all dacs

On Tue, 11 Dec 2018 17:55:00 -0700
Jeremy Fertic <jeremyfertic@...il.com> wrote:

> With adt7516/7/9, internal vref is available for dacs a and b, dacs c and
> d, or all dacs. The driver doesn't currently support internal vref for all
> dacs. Change the else if to an if so both bits are checked rather than
> just one or the other.
> 
> Signed-off-by: Jeremy Fertic <jeremyfertic@...il.com>
This one is nice and separated from the earlier patches and 'obviously' right
I think.  Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.

It's also fine to backport though given how broken the driver was before
patches that aren't, I'm not going to mark it for stable!

Thanks,

Jonathan

> ---
>  drivers/staging/iio/addac/adt7316.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
> index 98101a7157d2..3348fdf08f2e 100644
> --- a/drivers/staging/iio/addac/adt7316.c
> +++ b/drivers/staging/iio/addac/adt7316.c
> @@ -1081,7 +1081,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
>  		ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK);
>  		if (data & 0x1)
>  			ldac_config |= ADT7516_DAC_AB_IN_VREF;
> -		else if (data & 0x2)
> +		if (data & 0x2)
>  			ldac_config |= ADT7516_DAC_CD_IN_VREF;
>  	} else {
>  		ret = kstrtou8(buf, 16, &data);