diff options
| author | Binoy Jayan <binoy.jayan@linaro.org> | 2017-06-13 11:58:50 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-24 22:42:34 +0300 |
| commit | bd7a85d36363268266c5039bd31495d047acfb98 (patch) | |
| tree | 53e91cb8eb3cedb08a3f118620d7e2751d240b24 /drivers/media/pci/ngene | |
| parent | 90979f045513e7d3d7fb390dc26117ce95a31804 (diff) | |
| download | linux-bd7a85d36363268266c5039bd31495d047acfb98.tar.xz | |
media: ngene: Replace semaphore i2c_switch_mutex with mutex
The semaphore 'i2c_switch_mutex' is used as a simple mutex, so
it should be written as one. Semaphores are going away in the future.
Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/pci/ngene')
| -rw-r--r-- | drivers/media/pci/ngene/ngene-core.c | 2 | ||||
| -rw-r--r-- | drivers/media/pci/ngene/ngene-i2c.c | 6 | ||||
| -rw-r--r-- | drivers/media/pci/ngene/ngene.h | 2 |
3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c index ea649012b8c7..8c92cb7f7e72 100644 --- a/drivers/media/pci/ngene/ngene-core.c +++ b/drivers/media/pci/ngene/ngene-core.c @@ -1345,7 +1345,7 @@ static int ngene_start(struct ngene *dev) mutex_init(&dev->cmd_mutex); mutex_init(&dev->stream_mutex); sema_init(&dev->pll_mutex, 1); - sema_init(&dev->i2c_switch_mutex, 1); + mutex_init(&dev->i2c_switch_mutex); spin_lock_init(&dev->cmd_lock); for (i = 0; i < MAX_STREAM; i++) spin_lock_init(&dev->channel[i].state_lock); diff --git a/drivers/media/pci/ngene/ngene-i2c.c b/drivers/media/pci/ngene/ngene-i2c.c index cf39fcf54adf..fbf36353c701 100644 --- a/drivers/media/pci/ngene/ngene-i2c.c +++ b/drivers/media/pci/ngene/ngene-i2c.c @@ -118,7 +118,7 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter, (struct ngene_channel *)i2c_get_adapdata(adapter); struct ngene *dev = chan->dev; - down(&dev->i2c_switch_mutex); + mutex_lock(&dev->i2c_switch_mutex); ngene_i2c_set_bus(dev, chan->number); if (num == 2 && msg[1].flags & I2C_M_RD && !(msg[0].flags & I2C_M_RD)) @@ -136,11 +136,11 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter, msg[0].buf, msg[0].len, 0)) goto done; - up(&dev->i2c_switch_mutex); + mutex_unlock(&dev->i2c_switch_mutex); return -EIO; done: - up(&dev->i2c_switch_mutex); + mutex_unlock(&dev->i2c_switch_mutex); return num; } diff --git a/drivers/media/pci/ngene/ngene.h b/drivers/media/pci/ngene/ngene.h index 0dd15d61b8ee..7c7cd217333d 100644 --- a/drivers/media/pci/ngene/ngene.h +++ b/drivers/media/pci/ngene/ngene.h @@ -765,7 +765,7 @@ struct ngene { struct mutex cmd_mutex; struct mutex stream_mutex; struct semaphore pll_mutex; - struct semaphore i2c_switch_mutex; + struct mutex i2c_switch_mutex; int i2c_current_channel; int i2c_current_bus; spinlock_t cmd_lock; |