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authorPeter Rosin <peda@axentia.se>2018-06-20 10:51:54 +0200
committerWolfram Sang <wsa@the-dreams.de>2018-07-03 22:57:32 +0200
commitd7a0aef2960dfcfbbaef136f21fd88513ad679fb (patch)
treed3137381f3c94dc88fe122129a46159f25827362 /drivers/i2c/muxes
parent63453b59e41173241c4efe9335815f6432fa8586 (diff)
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.c28
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)