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path: root/drivers/hwmon/w83627hf.c
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Diffstat (limited to 'drivers/hwmon/w83627hf.c')
-rw-r--r--drivers/hwmon/w83627hf.c80
1 files changed, 33 insertions, 47 deletions
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index bd87a42e068a..02bd5c0239a2 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -42,8 +42,10 @@
42#include <linux/slab.h> 42#include <linux/slab.h>
43#include <linux/jiffies.h> 43#include <linux/jiffies.h>
44#include <linux/i2c.h> 44#include <linux/i2c.h>
45#include <linux/i2c-sensor.h> 45#include <linux/i2c-isa.h>
46#include <linux/i2c-vid.h> 46#include <linux/hwmon.h>
47#include <linux/hwmon-vid.h>
48#include <linux/err.h>
47#include <asm/io.h> 49#include <asm/io.h>
48#include "lm75.h" 50#include "lm75.h"
49 51
@@ -56,12 +58,11 @@ module_param(force_i2c, byte, 0);
56MODULE_PARM_DESC(force_i2c, 58MODULE_PARM_DESC(force_i2c,
57 "Initialize the i2c address of the sensors"); 59 "Initialize the i2c address of the sensors");
58 60
59/* Addresses to scan */ 61/* The actual ISA address is read from Super-I/O configuration space */
60static unsigned short normal_i2c[] = { I2C_CLIENT_END }; 62static unsigned short address;
61static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
62 63
63/* Insmod parameters */ 64/* Insmod parameters */
64SENSORS_INSMOD_4(w83627hf, w83627thf, w83697hf, w83637hf); 65enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf };
65 66
66static int init = 1; 67static int init = 1;
67module_param(init, bool, 0); 68module_param(init, bool, 0);
@@ -277,6 +278,7 @@ static inline u8 DIV_TO_REG(long val)
277 dynamically allocated, at the same time when a new client is allocated. */ 278 dynamically allocated, at the same time when a new client is allocated. */
278struct w83627hf_data { 279struct w83627hf_data {
279 struct i2c_client client; 280 struct i2c_client client;
281 struct class_device *class_dev;
280 struct semaphore lock; 282 struct semaphore lock;
281 enum chips type; 283 enum chips type;
282 284
@@ -314,9 +316,7 @@ struct w83627hf_data {
314}; 316};
315 317
316 318
317static int w83627hf_attach_adapter(struct i2c_adapter *adapter); 319static int w83627hf_detect(struct i2c_adapter *adapter);
318static int w83627hf_detect(struct i2c_adapter *adapter, int address,
319 int kind);
320static int w83627hf_detach_client(struct i2c_client *client); 320static int w83627hf_detach_client(struct i2c_client *client);
321 321
322static int w83627hf_read_value(struct i2c_client *client, u16 register); 322static int w83627hf_read_value(struct i2c_client *client, u16 register);
@@ -328,9 +328,7 @@ static void w83627hf_init_client(struct i2c_client *client);
328static struct i2c_driver w83627hf_driver = { 328static struct i2c_driver w83627hf_driver = {
329 .owner = THIS_MODULE, 329 .owner = THIS_MODULE,
330 .name = "w83627hf", 330 .name = "w83627hf",
331 .id = I2C_DRIVERID_W83627HF, 331 .attach_adapter = w83627hf_detect,
332 .flags = I2C_DF_NOTIFY,
333 .attach_adapter = w83627hf_attach_adapter,
334 .detach_client = w83627hf_detach_client, 332 .detach_client = w83627hf_detach_client,
335}; 333};
336 334
@@ -959,16 +957,7 @@ device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
959} while (0) 957} while (0)
960 958
961 959
962/* This function is called when: 960static int __init w83627hf_find(int sioaddr, unsigned short *addr)
963 * w83627hf_driver is inserted (when this module is loaded), for each
964 available adapter
965 * when a new adapter is inserted (and w83627hf_driver is still present) */
966static int w83627hf_attach_adapter(struct i2c_adapter *adapter)
967{
968 return i2c_detect(adapter, &addr_data, w83627hf_detect);
969}
970
971static int w83627hf_find(int sioaddr, int *address)
972{ 961{
973 u16 val; 962 u16 val;
974 963
@@ -988,32 +977,24 @@ static int w83627hf_find(int sioaddr, int *address)
988 superio_select(W83627HF_LD_HWM); 977 superio_select(W83627HF_LD_HWM);
989 val = (superio_inb(WINB_BASE_REG) << 8) | 978 val = (superio_inb(WINB_BASE_REG) << 8) |
990 superio_inb(WINB_BASE_REG + 1); 979 superio_inb(WINB_BASE_REG + 1);
991 *address = val & ~(WINB_EXTENT - 1); 980 *addr = val & ~(WINB_EXTENT - 1);
992 if (*address == 0 && force_addr == 0) { 981 if (*addr == 0 && force_addr == 0) {
993 superio_exit(); 982 superio_exit();
994 return -ENODEV; 983 return -ENODEV;
995 } 984 }
996 if (force_addr)
997 *address = force_addr; /* so detect will get called */
998 985
999 superio_exit(); 986 superio_exit();
1000 return 0; 987 return 0;
1001} 988}
1002 989
1003int w83627hf_detect(struct i2c_adapter *adapter, int address, 990static int w83627hf_detect(struct i2c_adapter *adapter)
1004 int kind)
1005{ 991{
1006 int val; 992 int val, kind;
1007 struct i2c_client *new_client; 993 struct i2c_client *new_client;
1008 struct w83627hf_data *data; 994 struct w83627hf_data *data;
1009 int err = 0; 995 int err = 0;
1010 const char *client_name = ""; 996 const char *client_name = "";
1011 997
1012 if (!i2c_is_isa_adapter(adapter)) {
1013 err = -ENODEV;
1014 goto ERROR0;
1015 }
1016
1017 if(force_addr) 998 if(force_addr)
1018 address = force_addr & ~(WINB_EXTENT - 1); 999 address = force_addr & ~(WINB_EXTENT - 1);
1019 1000
@@ -1102,6 +1083,12 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
1102 data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3)); 1083 data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
1103 1084
1104 /* Register sysfs hooks */ 1085 /* Register sysfs hooks */
1086 data->class_dev = hwmon_device_register(&new_client->dev);
1087 if (IS_ERR(data->class_dev)) {
1088 err = PTR_ERR(data->class_dev);
1089 goto ERROR3;
1090 }
1091
1105 device_create_file_in(new_client, 0); 1092 device_create_file_in(new_client, 0);
1106 if (kind != w83697hf) 1093 if (kind != w83697hf)
1107 device_create_file_in(new_client, 1); 1094 device_create_file_in(new_client, 1);
@@ -1152,6 +1139,8 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
1152 1139
1153 return 0; 1140 return 0;
1154 1141
1142 ERROR3:
1143 i2c_detach_client(new_client);
1155 ERROR2: 1144 ERROR2:
1156 kfree(data); 1145 kfree(data);
1157 ERROR1: 1146 ERROR1:
@@ -1162,16 +1151,16 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
1162 1151
1163static int w83627hf_detach_client(struct i2c_client *client) 1152static int w83627hf_detach_client(struct i2c_client *client)
1164{ 1153{
1154 struct w83627hf_data *data = i2c_get_clientdata(client);
1165 int err; 1155 int err;
1166 1156
1167 if ((err = i2c_detach_client(client))) { 1157 hwmon_device_unregister(data->class_dev);
1168 dev_err(&client->dev, 1158
1169 "Client deregistration failed, client not detached.\n"); 1159 if ((err = i2c_detach_client(client)))
1170 return err; 1160 return err;
1171 }
1172 1161
1173 release_region(client->addr, WINB_EXTENT); 1162 release_region(client->addr, WINB_EXTENT);
1174 kfree(i2c_get_clientdata(client)); 1163 kfree(data);
1175 1164
1176 return 0; 1165 return 0;
1177} 1166}
@@ -1327,7 +1316,7 @@ static void w83627hf_init_client(struct i2c_client *client)
1327 data->vrm = (data->vrm_ovt & 0x01) ? 90 : 82; 1316 data->vrm = (data->vrm_ovt & 0x01) ? 90 : 82;
1328 } else { 1317 } else {
1329 /* Convert VID to voltage based on default VRM */ 1318 /* Convert VID to voltage based on default VRM */
1330 data->vrm = i2c_which_vrm(); 1319 data->vrm = vid_which_vrm();
1331 } 1320 }
1332 1321
1333 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1); 1322 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
@@ -1485,20 +1474,17 @@ static struct w83627hf_data *w83627hf_update_device(struct device *dev)
1485 1474
1486static int __init sensors_w83627hf_init(void) 1475static int __init sensors_w83627hf_init(void)
1487{ 1476{
1488 int addr; 1477 if (w83627hf_find(0x2e, &address)
1489 1478 && w83627hf_find(0x4e, &address)) {
1490 if (w83627hf_find(0x2e, &addr)
1491 && w83627hf_find(0x4e, &addr)) {
1492 return -ENODEV; 1479 return -ENODEV;
1493 } 1480 }
1494 normal_isa[0] = addr;
1495 1481
1496 return i2c_add_driver(&w83627hf_driver); 1482 return i2c_isa_add_driver(&w83627hf_driver);
1497} 1483}
1498 1484
1499static void __exit sensors_w83627hf_exit(void) 1485static void __exit sensors_w83627hf_exit(void)
1500{ 1486{
1501 i2c_del_driver(&w83627hf_driver); 1487 i2c_isa_del_driver(&w83627hf_driver);
1502} 1488}
1503 1489
1504MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " 1490MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "