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| author |   Peter Rosin <peda@axentia.se> | 2016-08-25 23:07:01 +0200 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2016-08-30 22:56:14 +0200 |
| commit | d1ed7985b9a6b85ea38a330108c51ec83381c01b (patch) | |
| tree | d97296b9891543fec4e2d1da28d154db8e8a6b04 /drivers/i2c/i2c-core.c | |
| parent | i2c: tegra: Add pinctrl support (diff) | |
| download | wireguard-linux-d1ed7985b9a6b85ea38a330108c51ec83381c01b.tar.xz wireguard-linux-d1ed7985b9a6b85ea38a330108c51ec83381c01b.zip | |
i2c: move locking operations to their own struct
This makes it trivial to constify them, so do that.
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/i2c-core.c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 05794423e01f..0722713e5910 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1768,6 +1768,12 @@ static int __process_new_adapter(struct device_driver *d, void *data) return i2c_do_add_adapter(to_i2c_driver(d), data); } +static const struct i2c_lock_operations i2c_adapter_lock_ops = { + .lock_bus = i2c_adapter_lock_bus, + .trylock_bus = i2c_adapter_trylock_bus, + .unlock_bus = i2c_adapter_unlock_bus, +}; + static int i2c_register_adapter(struct i2c_adapter *adap) { int res = -EINVAL; @@ -1787,11 +1793,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap) goto out_list; } - if (!adap->lock_bus) { - adap->lock_bus = i2c_adapter_lock_bus; - adap->trylock_bus = i2c_adapter_trylock_bus; - adap->unlock_bus = i2c_adapter_unlock_bus; - } + if (!adap->lock_ops) + adap->lock_ops = &i2c_adapter_lock_ops; rt_mutex_init(&adap->bus_lock); rt_mutex_init(&adap->mux_lock); |