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Re: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name

Started byLars-Peter Clausen <lars@metafoo.de>
First post2015-08-12 10:30 +0200
Last post2015-08-12 10:40 +0200
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  Re: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based  on i2c name Lars-Peter Clausen <lars@metafoo.de> - 2015-08-12 10:30 +0200
    Re: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name LIYONG <sdliyong@gmail.com> - 2015-08-12 10:40 +0200

#1205694 — Re: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name

FromLars-Peter Clausen <lars@metafoo.de>
Date2015-08-12 10:30 +0200
SubjectRe: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name
Message-ID<pWzA6-7iu-5@gated-at.bofh.it>
On 08/12/2015 10:20 AM, sdliyong@gmail.com wrote:
> From: Yong Li <sdliyong@gmail.com>
> 
> Load the driver using the below command:
> echo hmc5983 0x1e > /sys/bus/i2c/devices/i2c-?/new_device
> 
> In sysfs, the iio name is hmc5843, however the i2c name is hmc5983,
> they are inconsistent.
> 
> With this patch, the iio name will be the same as the i2c device name
> 
> Signed-off-by: Yong Li <sdliyong@gmail.com>
> ---
>  drivers/staging/iio/magnetometer/hmc5843_i2c.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c
> index ff08667..3b03644 100644
> --- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c
> +++ b/drivers/staging/iio/magnetometer/hmc5843_i2c.c
> @@ -59,6 +59,7 @@ static const struct regmap_config hmc5843_i2c_regmap_config = {
>  static int hmc5843_i2c_probe(struct i2c_client *cli,
>  			     const struct i2c_device_id *id)
>  {
> +	cli->dev.driver->name = id->name;

You are overwriting a the name of the driver, which is a struct that is
shared between all instances of the device which specific data from one
device. That is most certainly not correct.

Update hmc5843_common_probe() and add a parameter that takes the name for
the device and then pass the id->name when the function is called.

>  	return hmc5843_common_probe(&cli->dev,
>  			devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config),
>  			id->driver_data);
> 

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#1205706 — Re: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name

FromLIYONG <sdliyong@gmail.com>
Date2015-08-12 10:40 +0200
SubjectRe: [PATCH v1] staging: iio: hmc5843: Set iio name dynamically based on i2c name
Message-ID<pWzJM-7tL-7@gated-at.bofh.it>
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