i2c: core: Remove definition of i2c_smbus_process_call

i2c_smbus_process_call has no users in the kernel, so this can be
removed. Documentation for the same has been updated accordingly.

Fixes following sparse warning.
drivers/i2c/i2c-core.c:1871:5: warning: symbol 'i2c_smbus_process_call'
was not declared. Should it be static?

[wsa: updated the documentation]

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>

1 files changed, 0 insertions, 23 deletions

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e388590b44ab..66a30f7ac882 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1866,29 +1866,6 @@ s32 i2c_smbus_write_word_data(const struct i2c_client *client, u8 command,
 EXPORT_SYMBOL(i2c_smbus_write_word_data);
 
 /**
- * i2c_smbus_process_call - SMBus "process call" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @value: 16-bit "word" being written
- *
- * This executes the SMBus "process call" protocol, returning negative errno
- * else a 16-bit unsigned "word" received from the device.
- */
-s32 i2c_smbus_process_call(const struct i2c_client *client, u8 command,
-                           u16 value)
-{
-        union i2c_smbus_data data;
-        int status;
-        data.word = value;
-
-        status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-                                I2C_SMBUS_WRITE, command,
-                                I2C_SMBUS_PROC_CALL, &data);
-        return (status < 0) ? status : data.word;
-}
-EXPORT_SYMBOL(i2c_smbus_process_call);
-
-/**
  * i2c_smbus_read_block_data - SMBus "block read" protocol
  * @client: Handle to slave device
  * @command: Byte interpreted by slave