linux-kernel - Re: [PATCH 13/18] iio: adc: mcp320x: Set struct spi_driver .of_match

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Date:	Thu, 20 Aug 2015 15:09:17 -0500
From:	Michael Welling <mwelling@...e.org>
To:	Javier Martinez Canillas <javier@....samsung.com>
Cc:	linux-kernel@...r.kernel.org, Andrea Galbusera <gizero@...il.com>,
	linux-iio@...r.kernel.org, Peter Meerwald <pmeerw@...erw.net>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Manfred Schlaegl <manfred.schlaegl@....at>,
	Søren Andersen <san@...etechnology.dk>,
	Jonathan Cameron <jic23@...nel.org>,
	Hartmut Knaack <knaack.h@....de>
Subject: Re: [PATCH 13/18] iio: adc: mcp320x: Set struct spi_driver
 .of_match_table

On Thu, Aug 20, 2015 at 09:07:26AM +0200, Javier Martinez Canillas wrote:
> The driver has an OF id table but the .of_match_table is not set so
> the SPI core can't do an OF style match and the table was unused.
> 

Is an OF style match necessary?

I have been using devicetree and it matches based on the .id_table.

Couldn't we just remove the mcp320x_dt_ids table instead?

> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> ---
> 
>  drivers/iio/adc/mcp320x.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
> index b19e4f9d16e0..41a21e986c1a 100644
> --- a/drivers/iio/adc/mcp320x.c
> +++ b/drivers/iio/adc/mcp320x.c
> @@ -404,6 +404,7 @@ MODULE_DEVICE_TABLE(spi, mcp320x_id);
>  static struct spi_driver mcp320x_driver = {
>  	.driver = {
>  		.name = "mcp320x",
> +		.of_match_table = of_match_ptr(mcp320x_dt_ids),
>  		.owner = THIS_MODULE,
>  	},
>  	.probe = mcp320x_probe,
> -- 
> 2.4.3
> 
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