linux-kernel - [PATCH v2 2/3] iio: hid-sensor-als: Add relative hysteresis support

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Date:   Sun,  7 Feb 2021 15:00:47 +0800
From:   Ye Xiang <xiang.ye@...el.com>
To:     jikos@...nel.org, jic23@...nel.org,
        srinivas.pandruvada@...ux.intel.com
Cc:     linux-input@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ye Xiang <xiang.ye@...el.com>
Subject: [PATCH v2 2/3] iio: hid-sensor-als: Add relative hysteresis support

Hid sensor als use relative hysteresis, this patch adds the support.

Signed-off-by: Ye Xiang <xiang.ye@...el.com>
---
 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;
 	}
-- 
2.17.1