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path: root/drivers/w1/masters/ds2482.c
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Diffstat (limited to 'drivers/w1/masters/ds2482.c')
-rw-r--r--drivers/w1/masters/ds2482.c35
1 files changed, 5 insertions, 30 deletions
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c
index df52cb355f7d..406caa6a71cb 100644
--- a/drivers/w1/masters/ds2482.c
+++ b/drivers/w1/masters/ds2482.c
@@ -24,19 +24,6 @@
24#include "../w1_int.h" 24#include "../w1_int.h"
25 25
26/** 26/**
27 * Address is selected using 2 pins, resulting in 4 possible addresses.
28 * 0x18, 0x19, 0x1a, 0x1b
29 * However, the chip cannot be detected without doing an i2c write,
30 * so use the force module parameter.
31 */
32static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
33
34/**
35 * Insmod parameters
36 */
37I2C_CLIENT_INSMOD_1(ds2482);
38
39/**
40 * The DS2482 registers - there are 3 registers that are addressed by a read 27 * The DS2482 registers - there are 3 registers that are addressed by a read
41 * pointer. The read pointer is set by the last command executed. 28 * pointer. The read pointer is set by the last command executed.
42 * 29 *
@@ -96,8 +83,6 @@ static const u8 ds2482_chan_rd[8] =
96 83
97static int ds2482_probe(struct i2c_client *client, 84static int ds2482_probe(struct i2c_client *client,
98 const struct i2c_device_id *id); 85 const struct i2c_device_id *id);
99static int ds2482_detect(struct i2c_client *client, int kind,
100 struct i2c_board_info *info);
101static int ds2482_remove(struct i2c_client *client); 86static int ds2482_remove(struct i2c_client *client);
102 87
103 88
@@ -117,8 +102,6 @@ static struct i2c_driver ds2482_driver = {
117 .probe = ds2482_probe, 102 .probe = ds2482_probe,
118 .remove = ds2482_remove, 103 .remove = ds2482_remove,
119 .id_table = ds2482_id, 104 .id_table = ds2482_id,
120 .detect = ds2482_detect,
121 .address_data = &addr_data,
122}; 105};
123 106
124/* 107/*
@@ -425,19 +408,6 @@ static u8 ds2482_w1_reset_bus(void *data)
425} 408}
426 409
427 410
428static int ds2482_detect(struct i2c_client *client, int kind,
429 struct i2c_board_info *info)
430{
431 if (!i2c_check_functionality(client->adapter,
432 I2C_FUNC_SMBUS_WRITE_BYTE_DATA |
433 I2C_FUNC_SMBUS_BYTE))
434 return -ENODEV;
435
436 strlcpy(info->type, "ds2482", I2C_NAME_SIZE);
437
438 return 0;
439}
440
441static int ds2482_probe(struct i2c_client *client, 411static int ds2482_probe(struct i2c_client *client,
442 const struct i2c_device_id *id) 412 const struct i2c_device_id *id)
443{ 413{
@@ -446,6 +416,11 @@ static int ds2482_probe(struct i2c_client *client,
446 int temp1; 416 int temp1;
447 int idx; 417 int idx;
448 418
419 if (!i2c_check_functionality(client->adapter,
420 I2C_FUNC_SMBUS_WRITE_BYTE_DATA |
421 I2C_FUNC_SMBUS_BYTE))
422 return -ENODEV;
423
449 if (!(data = kzalloc(sizeof(struct ds2482_data), GFP_KERNEL))) { 424 if (!(data = kzalloc(sizeof(struct ds2482_data), GFP_KERNEL))) {
450 err = -ENOMEM; 425 err = -ENOMEM;
451 goto exit; 426 goto exit;