Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h
new file mode 100644
index 000000000..ead9e9f85
--- /dev/null
+++ b/drivers/iio/pressure/ms5611.h
@@ -0,0 +1,69 @@
+/*
+ * MS5611 pressure and temperature sensor driver
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MS5611_H
+#define _MS5611_H
+
+#include <linux/device.h>
+#include <linux/iio/iio.h>
+#include <linux/mutex.h>
+
+struct regulator;
+
+#define MS5611_RESET			0x1e
+#define MS5611_READ_ADC			0x00
+#define MS5611_READ_PROM_WORD		0xA0
+#define MS5611_PROM_WORDS_NB		8
+
+enum {
+	MS5611,
+	MS5607,
+};
+
+struct ms5611_chip_info {
+	u16 prom[MS5611_PROM_WORDS_NB];
+
+	int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info,
+					    s32 *temp, s32 *pressure);
+};
+
+/*
+ * OverSampling Rate descriptor.
+ * Warning: cmd MUST be kept aligned on a word boundary (see
+ * m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c).
+ */
+struct ms5611_osr {
+	unsigned long conv_usec;
+	u8 cmd;
+	unsigned short rate;
+};
+
+struct ms5611_state {
+	void *client;
+	struct mutex lock;
+
+	const struct ms5611_osr *pressure_osr;
+	const struct ms5611_osr *temp_osr;
+
+	int (*reset)(struct device *dev);
+	int (*read_prom_word)(struct device *dev, int index, u16 *word);
+	int (*read_adc_temp_and_pressure)(struct device *dev,
+					  s32 *temp, s32 *pressure);
+
+	struct ms5611_chip_info *chip_info;
+	struct regulator *vdd;
+};
+
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev,
+		 const char *name, int type);
+int ms5611_remove(struct iio_dev *indio_dev);
+
+#endif /* _MS5611_H */