linux-kernel - Re: [PATCH 2/3] iio: hid-sensor-als: Add relative hysteresis support

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Date:   Sat, 6 Feb 2021 16:52:34 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Ye Xiang <xiang.ye@...el.com>
Cc:     jikos@...nel.org, srinivas.pandruvada@...ux.intel.com,
        linux-input@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] iio: hid-sensor-als: Add relative hysteresis
 support

On Mon,  1 Feb 2021 15:43:57 +0800
Ye Xiang <xiang.ye@...el.com> wrote:

> Hid sensor als uses relative hysteresis, this patch adds the support.
> 
> Signed-off-by: Ye Xiang <xiang.ye@...el.com>

Looks good to me.

Jonathan

> ---
>  drivers/iio/light/hid-sensor-als.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
> index afcdb424bfb8..85c8a05b73cb 100644
> --- a/drivers/iio/light/hid-sensor-als.c
> +++ b/drivers/iio/light/hid-sensor-als.c
> @@ -54,7 +54,8 @@ static const struct iio_chan_spec als_channels[] = {
>  		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
>  		BIT(IIO_CHAN_INFO_SCALE) |
>  		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
> -		BIT(IIO_CHAN_INFO_HYSTERESIS),
> +		BIT(IIO_CHAN_INFO_HYSTERESIS) |
> +		BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE),
>  		.scan_index = CHANNEL_SCAN_INDEX_INTENSITY,
>  	},
>  	{
> @@ -63,7 +64,8 @@ static const struct iio_chan_spec als_channels[] = {
>  		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
>  		BIT(IIO_CHAN_INFO_SCALE) |
>  		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
> -		BIT(IIO_CHAN_INFO_HYSTERESIS),
> +		BIT(IIO_CHAN_INFO_HYSTERESIS) |
> +		BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE),
>  		.scan_index = CHANNEL_SCAN_INDEX_ILLUM,
>  	},
>  	IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP)
> @@ -141,6 +143,10 @@ static int als_read_raw(struct iio_dev *indio_dev,
>  		ret_type = hid_sensor_read_raw_hyst_value(
>  				&als_state->common_attributes, val, val2);
>  		break;
> +	case IIO_CHAN_INFO_HYSTERESIS_RELATIVE:
> +		ret_type = hid_sensor_read_raw_hyst_rel_value(
> +				&als_state->common_attributes, val, val2);
> +		break;
>  	default:
>  		ret_type = -EINVAL;
>  		break;
> @@ -168,6 +174,10 @@ static int als_write_raw(struct iio_dev *indio_dev,
>  		ret = hid_sensor_write_raw_hyst_value(
>  				&als_state->common_attributes, val, val2);
>  		break;
> +	case IIO_CHAN_INFO_HYSTERESIS_RELATIVE:
> +		ret = hid_sensor_write_raw_hyst_rel_value(
> +				&als_state->common_attributes, val, val2);
> +		break;
>  	default:
>  		ret = -EINVAL;
>  	}