linux-kernel - Re: [PATCHv2] staging: iio: adc: add missing of_node references to iio

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Date:   Mon, 17 Jul 2017 15:17:29 +0200
From:   Lars-Peter Clausen <lars@...afoo.de>
To:     Hari Prasath <gehariprasath@...il.com>
Cc:     Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        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: [PATCHv2] staging: iio: adc: add missing of_node references to
 iio_dev

Hi,

The patch seems to be reverted?

Also should this part in the IIO core take care of automatically setting the
of_node of the IIO device? As far as I can see we don't have to initialize
it manually.

    /* If the calling driver did not initialize of_node, do it here */
    if (!indio_dev->dev.of_node && indio_dev->dev.parent)
        indio_dev->dev.of_node = indio_dev->dev.parent->of_node;

- Lars

On 07/17/2017 02:34 PM, Hari Prasath wrote:
> Adding missing indio_dev->dev.of_node references to allow iio consumers
> to access the device channels.
> 
> Signed-off-by: Hari Prasath <gehariprasath@...il.com>
> ---
> 	v2: Wrong from mail ID in first version of patch
> ---
>  drivers/staging/iio/adc/ad7192.c | 1 -
>  drivers/staging/iio/adc/ad7780.c | 1 -
>  2 files changed, 2 deletions(-)
> 
> diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
> index 78308a5..d11c6de 100644
> --- a/drivers/staging/iio/adc/ad7192.c
> +++ b/drivers/staging/iio/adc/ad7192.c
> @@ -668,7 +668,6 @@ static int ad7192_probe(struct spi_device *spi)
>  	spi_set_drvdata(spi, indio_dev);
>  	st->devid = spi_get_device_id(spi)->driver_data;
>  	indio_dev->dev.parent = &spi->dev;
> -	indio_dev->dev.of_node = spi->dev.of_node;
>  	indio_dev->name = spi_get_device_id(spi)->name;
>  	indio_dev->modes = INDIO_DIRECT_MODE;
>  
> diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
> index e38d2ab9..dec3ba6 100644
> --- a/drivers/staging/iio/adc/ad7780.c
> +++ b/drivers/staging/iio/adc/ad7780.c
> @@ -195,7 +195,6 @@ static int ad7780_probe(struct spi_device *spi)
>  	spi_set_drvdata(spi, indio_dev);
>  
>  	indio_dev->dev.parent = &spi->dev;
> -	indio_dev->dev.of_node = spi->dev.of_node;
>  	indio_dev->name = spi_get_device_id(spi)->name;
>  	indio_dev->modes = INDIO_DIRECT_MODE;
>  	indio_dev->channels = &st->chip_info->channel;
>