diff options
| author |   Peter Rosin <peda@axentia.se> | 2018-06-20 10:51:54 +0200 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2018-07-03 22:57:32 +0200 |
| commit | d7a0aef2960dfcfbbaef136f21fd88513ad679fb (patch) | |
| tree | d3137381f3c94dc88fe122129a46159f25827362 /drivers/i2c/muxes | |
| parent | i2c: smbus: add unlocked __i2c_smbus_xfer variant (diff) | |
| download | linux-dev-d7a0aef2960dfcfbbaef136f21fd88513ad679fb.tar.xz linux-dev-d7a0aef2960dfcfbbaef136f21fd88513ad679fb.zip | |
i2c: mux: mlxcpld: make use of __i2c_smbus_xfer
This simplifies the code, and you get retries for free if the adapter
does not support ->master_xfer.
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Michael Shych <michaelsh@mellanox.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/muxes')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-mlxcpld.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-mlxcpld.c b/drivers/i2c/muxes/i2c-mux-mlxcpld.c index 12ad8d65faf6..f2bf3e57ed67 100644 --- a/drivers/i2c/muxes/i2c-mux-mlxcpld.c +++ b/drivers/i2c/muxes/i2c-mux-mlxcpld.c @@ -94,31 +94,11 @@ static int mlxcpld_mux_reg_write(struct i2c_adapter *adap, struct i2c_client *client, u8 val) { struct mlxcpld_mux_plat_data *pdata = dev_get_platdata(&client->dev); - int ret = -ENODEV; - - if (adap->algo->master_xfer) { - struct i2c_msg msg; - u8 msgbuf[] = {pdata->sel_reg_addr, val}; - - msg.addr = client->addr; - msg.flags = 0; - msg.len = 2; - msg.buf = msgbuf; - ret = __i2c_transfer(adap, &msg, 1); - - if (ret >= 0 && ret != 1) - ret = -EREMOTEIO; - } else if (adap->algo->smbus_xfer) { - union i2c_smbus_data data; - - data.byte = val; - ret = adap->algo->smbus_xfer(adap, client->addr, - client->flags, I2C_SMBUS_WRITE, - pdata->sel_reg_addr, - I2C_SMBUS_BYTE_DATA, &data); - } + union i2c_smbus_data data = { .byte = val }; - return ret; + return __i2c_smbus_xfer(adap, client->addr, client->flags, + I2C_SMBUS_WRITE, pdata->sel_reg_addr, + I2C_SMBUS_BYTE_DATA, &data); } static int mlxcpld_mux_select_chan(struct i2c_mux_core *muxc, u32 chan) |