diff options
Diffstat (limited to 'drivers/w1/masters/ds2482.c')
| -rw-r--r-- | drivers/w1/masters/ds2482.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c index d1cacd23576b..af492cc48db2 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))) |
