Re: [PATCH v2] iio: potentiometer: mcp4531: Use i2c_get_match_data()

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On Fri, 21 Jul 2023 09:01:53 +0100
Biju Das <biju.das.jz@xxxxxxxxxxxxxx> wrote:

> Replace device_get_match_data() and i2c_match_id() by i2c_get_match
> _data() by making similar I2C and DT-based matching table.
> 
> Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> ---
> v1->v2:
>  * Added similar similar I2C and DT-based matching table.
>  * Dropped error check as all tables have data pointers.
> 
> Note:
>  This patch is only compile tested.

LGTM.

Applied to the togreg branch of iio.git and pushed out as testing to see
if 0-day can find anything we missed.

Thanks,

Jonathan

> ---
>  drivers/iio/potentiometer/mcp4531.c | 138 ++++++++++++++--------------
>  1 file changed, 70 insertions(+), 68 deletions(-)
> 
> diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c
> index c513c00c8243..6b251b7acb60 100644
> --- a/drivers/iio/potentiometer/mcp4531.c
> +++ b/drivers/iio/potentiometer/mcp4531.c
> @@ -206,72 +206,76 @@ static const struct iio_info mcp4531_info = {
>  	.write_raw = mcp4531_write_raw,
>  };
>  
> +#define MCP4531_ID_TABLE(name, cfg) {				\
> +	name, .driver_data = (kernel_ulong_t)&mcp4531_cfg[cfg],	\
> +}
> +
>  static const struct i2c_device_id mcp4531_id[] = {
> -	{ "mcp4531-502", MCP453x_502 },
> -	{ "mcp4531-103", MCP453x_103 },
> -	{ "mcp4531-503", MCP453x_503 },
> -	{ "mcp4531-104", MCP453x_104 },
> -	{ "mcp4532-502", MCP453x_502 },
> -	{ "mcp4532-103", MCP453x_103 },
> -	{ "mcp4532-503", MCP453x_503 },
> -	{ "mcp4532-104", MCP453x_104 },
> -	{ "mcp4541-502", MCP454x_502 },
> -	{ "mcp4541-103", MCP454x_103 },
> -	{ "mcp4541-503", MCP454x_503 },
> -	{ "mcp4541-104", MCP454x_104 },
> -	{ "mcp4542-502", MCP454x_502 },
> -	{ "mcp4542-103", MCP454x_103 },
> -	{ "mcp4542-503", MCP454x_503 },
> -	{ "mcp4542-104", MCP454x_104 },
> -	{ "mcp4551-502", MCP455x_502 },
> -	{ "mcp4551-103", MCP455x_103 },
> -	{ "mcp4551-503", MCP455x_503 },
> -	{ "mcp4551-104", MCP455x_104 },
> -	{ "mcp4552-502", MCP455x_502 },
> -	{ "mcp4552-103", MCP455x_103 },
> -	{ "mcp4552-503", MCP455x_503 },
> -	{ "mcp4552-104", MCP455x_104 },
> -	{ "mcp4561-502", MCP456x_502 },
> -	{ "mcp4561-103", MCP456x_103 },
> -	{ "mcp4561-503", MCP456x_503 },
> -	{ "mcp4561-104", MCP456x_104 },
> -	{ "mcp4562-502", MCP456x_502 },
> -	{ "mcp4562-103", MCP456x_103 },
> -	{ "mcp4562-503", MCP456x_503 },
> -	{ "mcp4562-104", MCP456x_104 },
> -	{ "mcp4631-502", MCP463x_502 },
> -	{ "mcp4631-103", MCP463x_103 },
> -	{ "mcp4631-503", MCP463x_503 },
> -	{ "mcp4631-104", MCP463x_104 },
> -	{ "mcp4632-502", MCP463x_502 },
> -	{ "mcp4632-103", MCP463x_103 },
> -	{ "mcp4632-503", MCP463x_503 },
> -	{ "mcp4632-104", MCP463x_104 },
> -	{ "mcp4641-502", MCP464x_502 },
> -	{ "mcp4641-103", MCP464x_103 },
> -	{ "mcp4641-503", MCP464x_503 },
> -	{ "mcp4641-104", MCP464x_104 },
> -	{ "mcp4642-502", MCP464x_502 },
> -	{ "mcp4642-103", MCP464x_103 },
> -	{ "mcp4642-503", MCP464x_503 },
> -	{ "mcp4642-104", MCP464x_104 },
> -	{ "mcp4651-502", MCP465x_502 },
> -	{ "mcp4651-103", MCP465x_103 },
> -	{ "mcp4651-503", MCP465x_503 },
> -	{ "mcp4651-104", MCP465x_104 },
> -	{ "mcp4652-502", MCP465x_502 },
> -	{ "mcp4652-103", MCP465x_103 },
> -	{ "mcp4652-503", MCP465x_503 },
> -	{ "mcp4652-104", MCP465x_104 },
> -	{ "mcp4661-502", MCP466x_502 },
> -	{ "mcp4661-103", MCP466x_103 },
> -	{ "mcp4661-503", MCP466x_503 },
> -	{ "mcp4661-104", MCP466x_104 },
> -	{ "mcp4662-502", MCP466x_502 },
> -	{ "mcp4662-103", MCP466x_103 },
> -	{ "mcp4662-503", MCP466x_503 },
> -	{ "mcp4662-104", MCP466x_104 },
> -	{}
> +	MCP4531_ID_TABLE("mcp4531-502", MCP453x_502),
> +	MCP4531_ID_TABLE("mcp4531-103", MCP453x_103),
> +	MCP4531_ID_TABLE("mcp4531-503", MCP453x_503),
> +	MCP4531_ID_TABLE("mcp4531-104", MCP453x_104),
> +	MCP4531_ID_TABLE("mcp4532-502", MCP453x_502),
> +	MCP4531_ID_TABLE("mcp4532-103", MCP453x_103),
> +	MCP4531_ID_TABLE("mcp4532-503", MCP453x_503),
> +	MCP4531_ID_TABLE("mcp4532-104", MCP453x_104),
> +	MCP4531_ID_TABLE("mcp4541-502", MCP454x_502),
> +	MCP4531_ID_TABLE("mcp4541-103", MCP454x_103),
> +	MCP4531_ID_TABLE("mcp4541-503", MCP454x_503),
> +	MCP4531_ID_TABLE("mcp4541-104", MCP454x_104),
> +	MCP4531_ID_TABLE("mcp4542-502", MCP454x_502),
> +	MCP4531_ID_TABLE("mcp4542-103", MCP454x_103),
> +	MCP4531_ID_TABLE("mcp4542-503", MCP454x_503),
> +	MCP4531_ID_TABLE("mcp4542-104", MCP454x_104),
> +	MCP4531_ID_TABLE("mcp4551-502", MCP455x_502),
> +	MCP4531_ID_TABLE("mcp4551-103", MCP455x_103),
> +	MCP4531_ID_TABLE("mcp4551-503", MCP455x_503),
> +	MCP4531_ID_TABLE("mcp4551-104", MCP455x_104),
> +	MCP4531_ID_TABLE("mcp4552-502", MCP455x_502),
> +	MCP4531_ID_TABLE("mcp4552-103", MCP455x_103),
> +	MCP4531_ID_TABLE("mcp4552-503", MCP455x_503),
> +	MCP4531_ID_TABLE("mcp4552-104", MCP455x_104),
> +	MCP4531_ID_TABLE("mcp4561-502", MCP456x_502),
> +	MCP4531_ID_TABLE("mcp4561-103", MCP456x_103),
> +	MCP4531_ID_TABLE("mcp4561-503", MCP456x_503),
> +	MCP4531_ID_TABLE("mcp4561-104", MCP456x_104),
> +	MCP4531_ID_TABLE("mcp4562-502", MCP456x_502),
> +	MCP4531_ID_TABLE("mcp4562-103", MCP456x_103),
> +	MCP4531_ID_TABLE("mcp4562-503", MCP456x_503),
> +	MCP4531_ID_TABLE("mcp4562-104", MCP456x_104),
> +	MCP4531_ID_TABLE("mcp4631-502", MCP463x_502),
> +	MCP4531_ID_TABLE("mcp4631-103", MCP463x_103),
> +	MCP4531_ID_TABLE("mcp4631-503", MCP463x_503),
> +	MCP4531_ID_TABLE("mcp4631-104", MCP463x_104),
> +	MCP4531_ID_TABLE("mcp4632-502", MCP463x_502),
> +	MCP4531_ID_TABLE("mcp4632-103", MCP463x_103),
> +	MCP4531_ID_TABLE("mcp4632-503", MCP463x_503),
> +	MCP4531_ID_TABLE("mcp4632-104", MCP463x_104),
> +	MCP4531_ID_TABLE("mcp4641-502", MCP464x_502),
> +	MCP4531_ID_TABLE("mcp4641-103", MCP464x_103),
> +	MCP4531_ID_TABLE("mcp4641-503", MCP464x_503),
> +	MCP4531_ID_TABLE("mcp4641-104", MCP464x_104),
> +	MCP4531_ID_TABLE("mcp4642-502", MCP464x_502),
> +	MCP4531_ID_TABLE("mcp4642-103", MCP464x_103),
> +	MCP4531_ID_TABLE("mcp4642-503", MCP464x_503),
> +	MCP4531_ID_TABLE("mcp4642-104", MCP464x_104),
> +	MCP4531_ID_TABLE("mcp4651-502", MCP465x_502),
> +	MCP4531_ID_TABLE("mcp4651-103", MCP465x_103),
> +	MCP4531_ID_TABLE("mcp4651-503", MCP465x_503),
> +	MCP4531_ID_TABLE("mcp4651-104", MCP465x_104),
> +	MCP4531_ID_TABLE("mcp4652-502", MCP465x_502),
> +	MCP4531_ID_TABLE("mcp4652-103", MCP465x_103),
> +	MCP4531_ID_TABLE("mcp4652-503", MCP465x_503),
> +	MCP4531_ID_TABLE("mcp4652-104", MCP465x_104),
> +	MCP4531_ID_TABLE("mcp4661-502", MCP466x_502),
> +	MCP4531_ID_TABLE("mcp4661-103", MCP466x_103),
> +	MCP4531_ID_TABLE("mcp4661-503", MCP466x_503),
> +	MCP4531_ID_TABLE("mcp4661-104", MCP466x_104),
> +	MCP4531_ID_TABLE("mcp4662-502", MCP466x_502),
> +	MCP4531_ID_TABLE("mcp4662-103", MCP466x_103),
> +	MCP4531_ID_TABLE("mcp4662-503", MCP466x_503),
> +	MCP4531_ID_TABLE("mcp4662-104", MCP466x_104),
> +	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(i2c, mcp4531_id);
>  
> @@ -368,9 +372,7 @@ static int mcp4531_probe(struct i2c_client *client)
>  	i2c_set_clientdata(client, indio_dev);
>  	data->client = client;
>  
> -	data->cfg = device_get_match_data(dev);
> -	if (!data->cfg)
> -		data->cfg = &mcp4531_cfg[i2c_match_id(mcp4531_id, client)->driver_data];
> +	data->cfg = i2c_get_match_data(client);
>  
>  	indio_dev->info = &mcp4531_info;
>  	indio_dev->channels = mcp4531_channels;




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