1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Analog Devices LTC2947 high precision power and energy monitor over SPI |
4 | * |
5 | * Copyright 2019 Analog Devices Inc. |
6 | */ |
7 | #include <linux/module.h> |
8 | #include <linux/of.h> |
9 | #include <linux/regmap.h> |
10 | #include <linux/spi/spi.h> |
11 | |
12 | #include "ltc2947.h" |
13 | |
14 | static const struct regmap_config ltc2947_regmap_config = { |
15 | .reg_bits = 16, |
16 | .val_bits = 8, |
17 | .read_flag_mask = BIT(0), |
18 | }; |
19 | |
20 | static int ltc2947_probe(struct spi_device *spi) |
21 | { |
22 | struct regmap *map; |
23 | |
24 | map = devm_regmap_init_spi(spi, <c2947_regmap_config); |
25 | if (IS_ERR(ptr: map)) |
26 | return PTR_ERR(ptr: map); |
27 | |
28 | return ltc2947_core_probe(map, name: spi_get_device_id(sdev: spi)->name); |
29 | } |
30 | |
31 | static const struct spi_device_id ltc2947_id[] = { |
32 | {"ltc2947" , 0}, |
33 | {} |
34 | }; |
35 | MODULE_DEVICE_TABLE(spi, ltc2947_id); |
36 | |
37 | static struct spi_driver ltc2947_driver = { |
38 | .driver = { |
39 | .name = "ltc2947" , |
40 | .of_match_table = ltc2947_of_match, |
41 | .pm = pm_sleep_ptr(<c2947_pm_ops), |
42 | }, |
43 | .probe = ltc2947_probe, |
44 | .id_table = ltc2947_id, |
45 | }; |
46 | module_spi_driver(ltc2947_driver); |
47 | |
48 | MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>" ); |
49 | MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver" ); |
50 | MODULE_LICENSE("GPL" ); |
51 | |