2020-11-19 14:26:04

by Alexandru Ardelean

Subject: [PATCH] iio: adc: ad7292: remove unneeded spi_set_drvdata()

This seems to have been copied from a driver that calls spi_set_drvdata()
but doesn't call spi_get_drvdata().
Setting a private object on the SPI device's object isn't necessary if it
won't be accessed.
This change removes the spi_set_drvdata() call.

Signed-off-by: Alexandru Ardelean <[email protected]>
---
drivers/iio/adc/ad7292.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
index ab204e9199e9..70e33dd1c9f7 100644
--- a/drivers/iio/adc/ad7292.c
+++ b/drivers/iio/adc/ad7292.c
@@ -276,8 +276,6 @@ static int ad7292_probe(struct spi_device *spi)
return -EINVAL;
}

- spi_set_drvdata(spi, indio_dev);
-
st->reg = devm_regulator_get_optional(&spi->dev, "vref");
if (!IS_ERR(st->reg)) {
ret = regulator_enable(st->reg);
--
2.17.1

2020-11-20 14:23:55

by Marcelo Schmitt

Subject: Re: [PATCH] iio: adc: ad7292: remove unneeded spi_set_drvdata()

LGTM.
Tested on raspberry pi kernel - rpi-5.9.y.

ad7292 was heavily based on ad7768-1.
Maybe this might apply to ad7768-1 as well.

Reviewed-by: Marcelo Schmitt <[email protected]>
Tested-by: Marcelo Schmitt <[email protected]>

On 11/19, Alexandru Ardelean wrote:
> This seems to have been copied from a driver that calls spi_set_drvdata()
> but doesn't call spi_get_drvdata().
> Setting a private object on the SPI device's object isn't necessary if it
> won't be accessed.
> This change removes the spi_set_drvdata() call.
>
> Signed-off-by: Alexandru Ardelean <[email protected]>
> ---
> drivers/iio/adc/ad7292.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
> index ab204e9199e9..70e33dd1c9f7 100644
> --- a/drivers/iio/adc/ad7292.c
> +++ b/drivers/iio/adc/ad7292.c
> @@ -276,8 +276,6 @@ static int ad7292_probe(struct spi_device *spi)
> return -EINVAL;
> }
>
> - spi_set_drvdata(spi, indio_dev);
> -
> st->reg = devm_regulator_get_optional(&spi->dev, "vref");
> if (!IS_ERR(st->reg)) {
> ret = regulator_enable(st->reg);
> --
> 2.17.1
>

2020-11-21 15:18:38

by Jonathan Cameron

Subject: Re: [PATCH] iio: adc: ad7292: remove unneeded spi_set_drvdata()

On Fri, 20 Nov 2020 11:21:58 -0300
Marcelo Schmitt <[email protected]> wrote:

> LGTM.
> Tested on raspberry pi kernel - rpi-5.9.y.
>
> ad7292 was heavily based on ad7768-1.
> Maybe this might apply to ad7768-1 as well.
>
> Reviewed-by: Marcelo Schmitt <[email protected]>
> Tested-by: Marcelo Schmitt <[email protected]>
Thanks,

Applied to the togreg branch of iio.git and will be pushed out as testing
shortly for all the usual reasons.

Thanks,

Jonathan

>
> On 11/19, Alexandru Ardelean wrote:
> > This seems to have been copied from a driver that calls spi_set_drvdata()
> > but doesn't call spi_get_drvdata().
> > Setting a private object on the SPI device's object isn't necessary if it
> > won't be accessed.
> > This change removes the spi_set_drvdata() call.
> >
> > Signed-off-by: Alexandru Ardelean <[email protected]>
> > ---
> > drivers/iio/adc/ad7292.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c
> > index ab204e9199e9..70e33dd1c9f7 100644
> > --- a/drivers/iio/adc/ad7292.c
> > +++ b/drivers/iio/adc/ad7292.c
> > @@ -276,8 +276,6 @@ static int ad7292_probe(struct spi_device *spi)
> > return -EINVAL;
> > }
> >
> > - spi_set_drvdata(spi, indio_dev);
> > -
> > st->reg = devm_regulator_get_optional(&spi->dev, "vref");
> > if (!IS_ERR(st->reg)) {
> > ret = regulator_enable(st->reg);
> > --
> > 2.17.1
> >