1 files changed, 0 insertions, 100 deletions
diff --git a/target/linux/generic/backport-4.19/501-v5.1-iio-chemical-sps30-add-support-for-self-cleaning.patch b/target/linux/generic/backport-4.19/501-v5.1-iio-chemical-sps30-add-support-for-self-cleaning.patch
deleted file mode 100644
index 7054fb0313..0000000000
--- a/target/linux/generic/backport-4.19/501-v5.1-iio-chemical-sps30-add-support-for-self-cleaning.patch
+++ /dev/null
@@ -1,100 +0,0 @@
-From c546d49656143855093c7b7fde60866e6e23a69d Mon Sep 17 00:00:00 2001
-From: Tomasz Duszynski <tduszyns@gmail.com>
-Date: Tue, 18 Dec 2018 21:28:09 +0100
-Subject: [PATCH] iio: chemical: sps30: add support for self cleaning
-
-Self cleaning is especially useful in cases where sensor undergoes
-frequent power on/off cycles. In such scenarios it is recommended to
-turn self cleaning at least once per week in order to maintain reliable
-measurements.
-
-Self cleaning is activated by writing 1 to a dedicated attribute.
-Internal fan accelerates to its maximum speed and keeps spinning
-for about 10 seconds blowing out accumulated dust.
-
-Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
-Tested-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
-Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
----
- Documentation/ABI/testing/sysfs-bus-iio-sps30 |  8 +++++
- drivers/iio/chemical/sps30.c                  | 35 ++++++++++++++++++-
- 2 files changed, 42 insertions(+), 1 deletion(-)
- create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-sps30
-
---- /dev/null
-+++ b/Documentation/ABI/testing/sysfs-bus-iio-sps30
-@@ -0,0 +1,8 @@
-+What:		/sys/bus/iio/devices/iio:deviceX/start_cleaning
-+Date:		December 2018
-+KernelVersion:	4.22
-+Contact:	linux-iio@vger.kernel.org
-+Description:
-+		Writing 1 starts sensor self cleaning. Internal fan accelerates
-+		to its maximum speed and keeps spinning for about 10 seconds in
-+		order to blow out accumulated dust.
---- a/drivers/iio/chemical/sps30.c
-+++ b/drivers/iio/chemical/sps30.c
-@@ -7,7 +7,6 @@
-  * I2C slave address: 0x69
-  *
-  * TODO:
-- *  - support for turning on fan cleaning
-  *  - support for reading/setting auto cleaning interval
-  */
- 
-@@ -37,6 +36,7 @@
- #define SPS30_READ_DATA_READY_FLAG 0x0202
- #define SPS30_READ_DATA 0x0300
- #define SPS30_READ_SERIAL 0xd033
-+#define SPS30_START_FAN_CLEANING 0x5607
- 
- enum {
- 	PM1,
-@@ -104,6 +104,7 @@ static int sps30_do_cmd(struct sps30_sta
- 		break;
- 	case SPS30_STOP_MEAS:
- 	case SPS30_RESET:
-+	case SPS30_START_FAN_CLEANING:
- 		ret = sps30_write_then_read(state, buf, 2, NULL, 0);
- 		break;
- 	case SPS30_READ_DATA_READY_FLAG:
-@@ -275,7 +276,39 @@ static int sps30_read_raw(struct iio_dev
- 	return -EINVAL;
- }
- 
-+static ssize_t start_cleaning_store(struct device *dev,
-+				    struct device_attribute *attr,
-+				    const char *buf, size_t len)
-+{
-+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-+	struct sps30_state *state = iio_priv(indio_dev);
-+	int val, ret;
-+
-+	if (kstrtoint(buf, 0, &val) || val != 1)
-+		return -EINVAL;
-+
-+	mutex_lock(&state->lock);
-+	ret = sps30_do_cmd(state, SPS30_START_FAN_CLEANING, NULL, 0);
-+	mutex_unlock(&state->lock);
-+	if (ret)
-+		return ret;
-+
-+	return len;
-+}
-+
-+static IIO_DEVICE_ATTR_WO(start_cleaning, 0);
-+
-+static struct attribute *sps30_attrs[] = {
-+	&iio_dev_attr_start_cleaning.dev_attr.attr,
-+	NULL
-+};
-+
-+static const struct attribute_group sps30_attr_group = {
-+	.attrs = sps30_attrs,
-+};
-+
- static const struct iio_info sps30_info = {
-+	.attrs = &sps30_attr_group,
- 	.read_raw = sps30_read_raw,
- };
-