diff options
| author | Bartosz Golaszewski <brgl@bgdev.pl> | 2018-03-19 10:17:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-23 16:25:45 +0100 |
| commit | 34d43faf3aa80f72617da5f2d460262c1e0bbf48 (patch) | |
| tree | ed62207be4b50e495cfb00976332389608cf453d /drivers | |
| parent | eeprom: at24: fix a line break (diff) | |
| download | linux-34d43faf3aa80f72617da5f2d460262c1e0bbf48.tar.xz linux-34d43faf3aa80f72617da5f2d460262c1e0bbf48.zip | |
eeprom: at24: simplify the i2c functionality checking
Save one call and make code prettier by checking the i2c functionality
in the beginning of at24_probe(), saving the relevant values and
reusing them later.
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Tested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/eeprom/at24.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index ef937390af13..49b7831c238a 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -564,6 +564,7 @@ static int at24_probe(struct i2c_client *client) struct nvmem_config nvmem_config = { }; struct at24_platform_data pdata = { }; struct device *dev = &client->dev; + bool i2c_fn_i2c, i2c_fn_block; unsigned int i, num_addresses; struct at24_data *at24; struct regmap *regmap; @@ -572,13 +573,15 @@ static int at24_probe(struct i2c_client *client) u8 test_byte; int err; + i2c_fn_i2c = i2c_check_functionality(client->adapter, I2C_FUNC_I2C); + i2c_fn_block = i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_WRITE_I2C_BLOCK); + err = at24_get_pdata(dev, &pdata); if (err) return err; - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C) && - !i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) + if (!i2c_fn_i2c && !i2c_fn_block) pdata.page_size = 1; if (!pdata.page_size) { @@ -631,8 +634,7 @@ static int at24_probe(struct i2c_client *client) if (writable) { at24->write_max = min_t(unsigned int, pdata.page_size, at24_io_limit); - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C) && - at24->write_max > I2C_SMBUS_BLOCK_MAX) + if (!i2c_fn_i2c && at24->write_max > I2C_SMBUS_BLOCK_MAX) at24->write_max = I2C_SMBUS_BLOCK_MAX; } |