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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 18:51:32 -0500 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 18:51:32 -0500 |
commit | b6585dedac232ca79fe978d97a95fdaa6da24f66 (patch) | |
tree | 4d2d78300bb9bcfb40cb35450f78dd3af82c78d3 /drivers/i2c/chips/eeprom.c | |
parent | a3ea9b584ed2acdeae817f0dc91a5880e0828a05 (diff) | |
parent | ded2b66615613093eeb83b81499bc270de8fc499 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (36 commits)
[PATCH] hwmon: add required idr locking
[PATCH] I2C: hwmon: Rename register parameters
[PATCH] I2C: Drop unneeded i2c-dev.h includes
[PATCH] I2C: i2c-ixp4xx: Add hwmon class
[PATCH] I2C: i2c-piix4: Add Broadcom HT-1000 support
[PATCH] I2C: i2c-amd756-s4882: Improve static mutex initialization
[PATCH] I2C: i2c-ali1535: Drop redundant mutex
[PATCH] i2c: Cleanup isp1301_omap
[PATCH] i2c: Fix i2c-ite name initialization
[PATCH] i2c: Drop the i2c-frodo bus driver
[PATCH] i2c: Optimize core_lists mutex usage
[PATCH] w83781d: Don't reset the chip by default
[PATCH] w83781d: Document the alarm and beep bits
[PATCH] w83627ehf: Refactor the sysfs interface
[PATCH] hwmon: Support the Pentium M VID code
[PATCH] hwmon: Add support for the Winbond W83687THF
[PATCH] hwmon: f71805f semaphore to mutex conversions
[PATCH] hwmon: Semaphore to mutex conversions
[PATCH] i2c: Semaphore to mutex conversions, part 3
[PATCH] i2c: Semaphore to mutex conversions, part 2
...
Diffstat (limited to 'drivers/i2c/chips/eeprom.c')
-rw-r--r-- | drivers/i2c/chips/eeprom.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 41116b7947f6..13c108269a6d 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c | |||
@@ -33,6 +33,7 @@ | |||
33 | #include <linux/sched.h> | 33 | #include <linux/sched.h> |
34 | #include <linux/jiffies.h> | 34 | #include <linux/jiffies.h> |
35 | #include <linux/i2c.h> | 35 | #include <linux/i2c.h> |
36 | #include <linux/mutex.h> | ||
36 | 37 | ||
37 | /* Addresses to scan */ | 38 | /* Addresses to scan */ |
38 | static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, | 39 | static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, |
@@ -54,7 +55,7 @@ enum eeprom_nature { | |||
54 | /* Each client has this additional data */ | 55 | /* Each client has this additional data */ |
55 | struct eeprom_data { | 56 | struct eeprom_data { |
56 | struct i2c_client client; | 57 | struct i2c_client client; |
57 | struct semaphore update_lock; | 58 | struct mutex update_lock; |
58 | u8 valid; /* bitfield, bit!=0 if slice is valid */ | 59 | u8 valid; /* bitfield, bit!=0 if slice is valid */ |
59 | unsigned long last_updated[8]; /* In jiffies, 8 slices */ | 60 | unsigned long last_updated[8]; /* In jiffies, 8 slices */ |
60 | u8 data[EEPROM_SIZE]; /* Register values */ | 61 | u8 data[EEPROM_SIZE]; /* Register values */ |
@@ -81,7 +82,7 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice) | |||
81 | struct eeprom_data *data = i2c_get_clientdata(client); | 82 | struct eeprom_data *data = i2c_get_clientdata(client); |
82 | int i, j; | 83 | int i, j; |
83 | 84 | ||
84 | down(&data->update_lock); | 85 | mutex_lock(&data->update_lock); |
85 | 86 | ||
86 | if (!(data->valid & (1 << slice)) || | 87 | if (!(data->valid & (1 << slice)) || |
87 | time_after(jiffies, data->last_updated[slice] + 300 * HZ)) { | 88 | time_after(jiffies, data->last_updated[slice] + 300 * HZ)) { |
@@ -107,7 +108,7 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice) | |||
107 | data->valid |= (1 << slice); | 108 | data->valid |= (1 << slice); |
108 | } | 109 | } |
109 | exit: | 110 | exit: |
110 | up(&data->update_lock); | 111 | mutex_unlock(&data->update_lock); |
111 | } | 112 | } |
112 | 113 | ||
113 | static ssize_t eeprom_read(struct kobject *kobj, char *buf, loff_t off, size_t count) | 114 | static ssize_t eeprom_read(struct kobject *kobj, char *buf, loff_t off, size_t count) |
@@ -187,7 +188,7 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind) | |||
187 | /* Fill in the remaining client fields */ | 188 | /* Fill in the remaining client fields */ |
188 | strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE); | 189 | strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE); |
189 | data->valid = 0; | 190 | data->valid = 0; |
190 | init_MUTEX(&data->update_lock); | 191 | mutex_init(&data->update_lock); |
191 | data->nature = UNKNOWN; | 192 | data->nature = UNKNOWN; |
192 | 193 | ||
193 | /* Tell the I2C layer a new client has arrived */ | 194 | /* Tell the I2C layer a new client has arrived */ |