Re: [PATCH 08/19] iio/ti_am335x_adc: remove platform_data support

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On 05/27/2013 08:11 PM, Sebastian Andrzej Siewior wrote:
> This patch removes access to platform data mfd_tscadc_board because the
> platform is DT only.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
> ---
>  drivers/iio/adc/ti_am335x_adc.c |   26 ++++++++++----------------
>  1 file changed, 10 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
> index e657709..d821d88 100644
> --- a/drivers/iio/adc/ti_am335x_adc.c
> +++ b/drivers/iio/adc/ti_am335x_adc.c
> @@ -26,7 +26,6 @@
>  #include <linux/of_device.h>
>  
>  #include <linux/mfd/ti_am335x_tscadc.h>
> -#include <linux/platform_data/ti_am335x_adc.h>
>  
>  struct tiadc_device {
>  	struct ti_tscadc_dev *mfd_tscadc;
> @@ -143,13 +142,12 @@ static int tiadc_probe(struct platform_device *pdev)
>  	struct iio_dev		*indio_dev;
>  	struct tiadc_device	*adc_dev;
>  	struct ti_tscadc_dev	*tscadc_dev = pdev->dev.platform_data;
> -	struct mfd_tscadc_board	*pdata = tscadc_dev->dev->platform_data;
>  	struct device_node	*node = tscadc_dev->dev->of_node;
>  	int			err;
>  	u32			val32;
>  
> -	if (!pdata && !node) {
> -		dev_err(&pdev->dev, "Could not find platform data\n");
> +	if (!node) {
> +		dev_err(&pdev->dev, "Could not find valid DT data.\n");
>  		return -EINVAL;
>  	}
>  
> @@ -163,18 +161,14 @@ static int tiadc_probe(struct platform_device *pdev)
>  
>  	adc_dev->mfd_tscadc = tscadc_dev;
>  
> -	if (pdata)
> -		adc_dev->channels = pdata->adc_init->adc_channels;
> -	else {
> -		node = of_get_child_by_name(node, "adc");
> -		if (!node)
> -			return  -EINVAL;
> -		err = of_property_read_u32(node,
> -				"ti,adc-channels", &val32);
> -		if (err < 0)
> -			goto err_free_device;
> -		adc_dev->channels = val32;
> -	}
> +	node = of_get_child_by_name(node, "adc");
> +	if (!node)
> +		return  -EINVAL;
> +	err = of_property_read_u32(node,
> +			"ti,adc-channels", &val32);
> +	if (err < 0)
> +		goto err_free_device;
> +	adc_dev->channels = val32;
>  
>  	indio_dev->dev.parent = &pdev->dev;
>  	indio_dev->name = dev_name(&pdev->dev);
> 
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