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path: root/drivers/hwmon/ltc2947-spi.c
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Diffstat (limited to 'drivers/hwmon/ltc2947-spi.c')
-rw-r--r--drivers/hwmon/ltc2947-spi.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/hwmon/ltc2947-spi.c b/drivers/hwmon/ltc2947-spi.c
new file mode 100644
index 000000000000..c24ca569db1b
--- /dev/null
+++ b/drivers/hwmon/ltc2947-spi.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices LTC2947 high precision power and energy monitor over SPI
+ *
+ * Copyright 2019 Analog Devices Inc.
+ */
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "ltc2947.h"
+
+static const struct regmap_config ltc2947_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .read_flag_mask = BIT(0),
+};
+
+static int ltc2947_probe(struct spi_device *spi)
+{
+ struct regmap *map;
+
+ map = devm_regmap_init_spi(spi, &ltc2947_regmap_config);
+ if (IS_ERR(map))
+ return PTR_ERR(map);
+
+ return ltc2947_core_probe(map, spi_get_device_id(spi)->name);
+}
+
+static const struct spi_device_id ltc2947_id[] = {
+ {"ltc2947", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(spi, ltc2947_id);
+
+static struct spi_driver ltc2947_driver = {
+ .driver = {
+ .name = "ltc2947",
+ .of_match_table = ltc2947_of_match,
+ .pm = &ltc2947_pm_ops,
+ },
+ .probe = ltc2947_probe,
+ .id_table = ltc2947_id,
+};
+module_spi_driver(ltc2947_driver);
+
+MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>");
+MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver");
+MODULE_LICENSE("GPL");