linux-kernel - Re: [PATCH 7/9] iio: mma8452: change iio event type to IIO_EV_TYPE

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Date:	Sun, 05 Jul 2015 12:50:13 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Martin Kepplinger <martink@...teo.de>, knaack.h@....de,
	lars@...afoo.de, pmeerw@...erw.net, mfuzzey@...keon.com,
	roberta.dobrescu@...il.com,
	christoph.muellner@...obroma-systems.com
CC:	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Martin Kepplinger <martin.kepplinger@...obroma-systems.com>
Subject: Re: [PATCH 7/9] iio: mma8452: change iio event type to IIO_EV_TYPE_MAG

On 04/07/15 14:55, Martin Kepplinger wrote:
> IIO_EV_TYPE_THRESH in rising direction describes an event where the
> threshold is crossed in rising direction, positive or negative values
> being possible. This is not the case here.
> 
> Since the threshold is no signed value and only the magnitude is compared,
> IIO_EV_TYPE_MAG is what describes the behaviour of these devices, see the
> sysfs-bus-iio ABI Documentation.
> 
> Signed-off-by: Martin Kepplinger <martin.kepplinger@...obroma-systems.com>
> Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.com>
This is a fix and so should have been the first patch in the series.  It will
want to go via a different tree (iio-fixes) and probably be marked for stable.

I would however like Peter's ack on this as well before taking it.
> ---
>  drivers/iio/accel/mma8452.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
> index 7f6e3b4..e23ebd0 100644
> --- a/drivers/iio/accel/mma8452.c
> +++ b/drivers/iio/accel/mma8452.c
> @@ -598,21 +598,21 @@ static void mma8452_transient_interrupt(struct iio_dev *indio_dev)
>  	if (src & data->chip_info->ev_src_xe)
>  		iio_push_event(indio_dev,
>  			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X,
> -						  IIO_EV_TYPE_THRESH,
> +						  IIO_EV_TYPE_MAG,
>  						  IIO_EV_DIR_RISING),
>  			       ts);
>  
>  	if (src & data->chip_info->ev_src_ye)
>  		iio_push_event(indio_dev,
>  			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Y,
> -						  IIO_EV_TYPE_THRESH,
> +						  IIO_EV_TYPE_MAG,
>  						  IIO_EV_DIR_RISING),
>  			       ts);
>  
>  	if (src & data->chip_info->ev_src_ze)
>  		iio_push_event(indio_dev,
>  			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Z,
> -						  IIO_EV_TYPE_THRESH,
> +						  IIO_EV_TYPE_MAG,
>  						  IIO_EV_DIR_RISING),
>  			       ts);
>  }
> @@ -689,7 +689,7 @@ static int mma8452_reg_access_dbg(struct iio_dev *indio_dev,
>  
>  static const struct iio_event_spec mma8452_transient_event[] = {
>  	{
> -		.type = IIO_EV_TYPE_THRESH,
> +		.type = IIO_EV_TYPE_MAG,
>  		.dir = IIO_EV_DIR_RISING,
>  		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
>  		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE) |
> @@ -700,7 +700,7 @@ static const struct iio_event_spec mma8452_transient_event[] = {
>  
>  static const struct iio_event_spec mma8452_motion_event[] = {
>  	{
> -		.type = IIO_EV_TYPE_THRESH,
> +		.type = IIO_EV_TYPE_MAG,
>  		.dir = IIO_EV_DIR_RISING,
>  		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
>  		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE) |
> 

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