[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/iio/humidity/hts221.h b/src/kernel/linux/v4.19/drivers/iio/humidity/hts221.h
new file mode 100644
index 0000000..e41a3d8
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/iio/humidity/hts221.h
@@ -0,0 +1,53 @@
+/*
+ * STMicroelectronics hts221 sensor driver
+ *
+ * Copyright 2016 STMicroelectronics Inc.
+ *
+ * Lorenzo Bianconi <lorenzo.bianconi@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#ifndef HTS221_H
+#define HTS221_H
+
+#define HTS221_DEV_NAME "hts221"
+
+#include <linux/iio/iio.h>
+
+#define HTS221_DATA_SIZE 2
+
+enum hts221_sensor_type {
+ HTS221_SENSOR_H,
+ HTS221_SENSOR_T,
+ HTS221_SENSOR_MAX,
+};
+
+struct hts221_sensor {
+ u8 cur_avg_idx;
+ int slope, b_gen;
+};
+
+struct hts221_hw {
+ const char *name;
+ struct device *dev;
+ struct regmap *regmap;
+
+ struct iio_trigger *trig;
+ int irq;
+
+ struct hts221_sensor sensors[HTS221_SENSOR_MAX];
+
+ bool enabled;
+ u8 odr;
+};
+
+extern const struct dev_pm_ops hts221_pm_ops;
+
+int hts221_probe(struct device *dev, int irq, const char *name,
+ struct regmap *regmap);
+int hts221_set_enable(struct hts221_hw *hw, bool enable);
+int hts221_allocate_buffers(struct hts221_hw *hw);
+int hts221_allocate_trigger(struct hts221_hw *hw);
+
+#endif /* HTS221_H */