hwmon: Add support for ltc2947
The ltc2947 is a high precision power and energy monitor with an
internal sense resistor supporting up to +/- 30A. Three internal no
Latency ADCs ensure accurate measurement of voltage and current, while
high-bandwidth analog multiplication of voltage and current provides
accurate power measurement in a wide range of applications. Internal or
external clocking options enable precise charge and energy measurements.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20191021154115.319073-1-nuno.sa@analog.com
[groeck: Removed unnecessary checks when reading temperature and energy;
PAGE{0,1} -> LTC2947_PAGE_{0,1}]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/ltc2947.h b/drivers/hwmon/ltc2947.h
new file mode 100644
index 0000000..5b8ff81
--- /dev/null
+++ b/drivers/hwmon/ltc2947.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_LTC2947_H
+#define _LINUX_LTC2947_H
+
+struct regmap;
+
+extern const struct of_device_id ltc2947_of_match[];
+extern const struct dev_pm_ops ltc2947_pm_ops;
+
+int ltc2947_core_probe(struct regmap *map, const char *name);
+
+#endif