summaryrefslogtreecommitdiffstats
path: root/drivers/w1/masters/ds2482.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/w1/masters/ds2482.c')
-rw-r--r--drivers/w1/masters/ds2482.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c
index d1cacd23576..af492cc48db 100644
--- a/drivers/w1/masters/ds2482.c
+++ b/drivers/w1/masters/ds2482.c
@@ -125,7 +125,7 @@ struct ds2482_w1_chan {
struct ds2482_data {
struct i2c_client client;
- struct semaphore access_lock;
+ struct mutex access_lock;
/* 1-wire interface(s) */
int w1_count; /* 1 or 8 */
@@ -265,7 +265,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
struct ds2482_data *pdev = pchan->pdev;
int status = -1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -277,7 +277,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
bit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return (status & DS2482_REG_STS_SBR) ? 1 : 0;
}
@@ -297,7 +297,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
struct ds2482_data *pdev = pchan->pdev;
int status = (3 << 5);
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -309,7 +309,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
dbit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
/* Decode the status */
return (status >> 5);
@@ -326,7 +326,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
struct ds2482_w1_chan *pchan = data;
struct ds2482_data *pdev = pchan->pdev;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -336,7 +336,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
/* Send the write byte command */
ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
}
/**
@@ -351,7 +351,7 @@ static u8 ds2482_w1_read_byte(void *data)
struct ds2482_data *pdev = pchan->pdev;
int result;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -370,7 +370,7 @@ static u8 ds2482_w1_read_byte(void *data)
/* Read the data byte */
result = i2c_smbus_read_byte(&pdev->client);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return result;
}
@@ -389,7 +389,7 @@ static u8 ds2482_w1_reset_bus(void *data)
int err;
u8 retval = 1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -409,7 +409,7 @@ static u8 ds2482_w1_reset_bus(void *data)
0xF0);
}
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return retval;
}
@@ -482,7 +482,7 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00",
data->w1_count);
- init_MUTEX(&data->access_lock);
+ mutex_init(&data->access_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))