linux-kernel - Re: [PATCH v2 1/6] iio: imu: bmi270: Use INFO_SAMP_FREQ instead of INFO

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Message-ID: <20241019123005.096f03c3@jic23-huawei>
Date: Sat, 19 Oct 2024 12:30:05 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Justin Weiss <justin@...tinweiss.com>
Cc: Alex Lanzano <lanzano.alex@...il.com>, Lars-Peter Clausen
 <lars@...afoo.de>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, "Derek J . Clark"
 <derekjohn.clark@...il.com>, Philip Müller
 <philm@...jaro.org>
Subject: Re: [PATCH v2 1/6] iio: imu: bmi270: Use INFO_SAMP_FREQ instead of
 INFO_FREQUENCY

On Fri, 18 Oct 2024 16:36:07 -0700
Justin Weiss <justin@...tinweiss.com> wrote:

> Use IIO_CHAN_INFO_SAMP_FREQ instead of IIO_CHAN_INFO_FREQUENCY
> to match the BMI160 / BMI323 drivers.
> 
> Fixes: 3ea51548d6b2 ("iio: imu: Add i2c driver for bmi270 imu")
> Signed-off-by: Justin Weiss <justin@...tinweiss.com>

Whilst this gets rid of the wrong attributes, they still aren't
wired up to anything either way so a read will always return an error.

For now, the fix is drop the bit and bring it back in a patch
that adds the read_raw handling for the sampling frequency
(patch 6 I think).

> ---
>  drivers/iio/imu/bmi270/bmi270_core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/imu/bmi270/bmi270_core.c b/drivers/iio/imu/bmi270/bmi270_core.c
> index aeda7c4228df..87036f352698 100644
> --- a/drivers/iio/imu/bmi270/bmi270_core.c
> +++ b/drivers/iio/imu/bmi270/bmi270_core.c
> @@ -122,7 +122,7 @@ static const struct iio_info bmi270_info = {
>  	.channel2 = IIO_MOD_##_axis,				\
>  	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
>  	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
> -		BIT(IIO_CHAN_INFO_FREQUENCY),			\
> +		BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
>  }
>  
>  #define BMI270_ANG_VEL_CHANNEL(_axis) {				\
> @@ -131,7 +131,7 @@ static const struct iio_info bmi270_info = {
>  	.channel2 = IIO_MOD_##_axis,				\
>  	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
>  	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
> -		BIT(IIO_CHAN_INFO_FREQUENCY),			\
> +		BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
>  }
>  
>  static const struct iio_chan_spec bmi270_channels[] = {