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i2c: mux: drop old unused i2c-mux api 

All i2c mux users are using an explicit i2c mux core, drop support
for implicit i2c mux cores.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Peter Rosin 2016-03-02 15:14:22 +01:00 committed by Wolfram Sang
parent b6e3b7171b
commit 23fe440c59
2 changed files with 0 additions and 78 deletions
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63
drivers/i2c/i2c-mux.c
View File

@ -28,12 +28,6 @@
#include <linux/slab.h>
/* multiplexer per channel data */
struct i2c_mux_priv_old {
void *mux_priv;
int (*select)(struct i2c_adapter *, void *mux_priv, u32 chan_id);
int (*deselect)(struct i2c_adapter *, void *mux_priv, u32 chan_id);
};
struct i2c_mux_priv {
struct i2c_adapter adap;
struct i2c_algorithm algo;
@ -104,53 +98,6 @@ static unsigned int i2c_mux_parent_classes(struct i2c_adapter *parent)
return class;
}
static int i2c_mux_select(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_mux_priv_old *priv = i2c_mux_priv(muxc);
return priv->select(muxc->parent, priv->mux_priv, chan);
}
static int i2c_mux_deselect(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_mux_priv_old *priv = i2c_mux_priv(muxc);
return priv->deselect(muxc->parent, priv->mux_priv, chan);
}
struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
struct device *mux_dev,
void *mux_priv, u32 force_nr, u32 chan_id,
unsigned int class,
int (*select) (struct i2c_adapter *,
void *, u32),
int (*deselect) (struct i2c_adapter *,
void *, u32))
{
struct i2c_mux_core *muxc;
struct i2c_mux_priv_old *priv;
int ret;
muxc = i2c_mux_alloc(parent, mux_dev, 1, sizeof(*priv), 0,
i2c_mux_select, i2c_mux_deselect);
if (!muxc)
return NULL;
priv = i2c_mux_priv(muxc);
priv->select = select;
priv->deselect = deselect;
priv->mux_priv = mux_priv;
ret = i2c_mux_add_adapter(muxc, force_nr, chan_id, class);
if (ret) {
devm_kfree(mux_dev, muxc);
return NULL;
}
return muxc->adapter[0];
}
EXPORT_SYMBOL_GPL(i2c_add_mux_adapter);
struct i2c_mux_core *i2c_mux_alloc(struct i2c_adapter *parent,
struct device *dev, int max_adapters,
int sizeof_priv, u32 flags,
@ -305,16 +252,6 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc)
}
EXPORT_SYMBOL_GPL(i2c_mux_del_adapters);
void i2c_del_mux_adapter(struct i2c_adapter *adap)
{
struct i2c_mux_priv *priv = adap->algo_data;
struct i2c_mux_core *muxc = priv->muxc;
i2c_mux_del_adapters(muxc);
devm_kfree(muxc->dev, muxc);
}
EXPORT_SYMBOL_GPL(i2c_del_mux_adapter);
MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
MODULE_DESCRIPTION("I2C driver for multiplexed I2C busses");
MODULE_LICENSE("GPL v2");

15
include/linux/i2c-mux.h
View File

@ -52,20 +52,6 @@ static inline void *i2c_mux_priv(struct i2c_mux_core *muxc)
return muxc->priv;
}
/*
* Called to create a i2c bus on a multiplexed bus segment.
* The mux_dev and chan_id parameters are passed to the select
* and deselect callback functions to perform hardware-specific
* mux control.
*/
struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
struct device *mux_dev,
void *mux_priv, u32 force_nr, u32 chan_id,
unsigned int class,
int (*select) (struct i2c_adapter *,
void *mux_dev, u32 chan_id),
int (*deselect) (struct i2c_adapter *,
void *mux_dev, u32 chan_id));
/*
* Called to create an i2c bus on a multiplexed bus segment.
* The chan_id parameter is passed to the select and deselect
@ -75,7 +61,6 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
u32 force_nr, u32 chan_id,
unsigned int class);
void i2c_del_mux_adapter(struct i2c_adapter *adap);
void i2c_mux_del_adapters(struct i2c_mux_core *muxc);
#endif /* __KERNEL__ */