diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-05-30 12:55:34 +0400 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2012-05-30 12:55:34 +0400 |
| commit | 14674e70119ea01549ce593d8901a797f8a90f74 (patch) | |
| tree | 15474236bfa505aa396bf2892cbbee65e842b94b /drivers/base | |
| parent | 838bfa6049fb84dc66c9c9bbeb3a968ec987fd3d (diff) | |
| download | linux-14674e70119ea01549ce593d8901a797f8a90f74.tar.xz | |
i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING
Since there are uses for I2C_M_NOSTART which are much more sensible and
standard than most of the protocol mangling functionality (the main one
being gather writes to devices where something like a register address
needs to be inserted before a block of data) create a new I2C_FUNC_NOSTART
for this feature and update all the users to use it.
Also strengthen the disrecommendation of the protocol mangling while we're
at it.
In the case of regmap-i2c we remove the requirement for mangling as
I2C_M_NOSTART is the only mangling feature which is being used.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap-i2c.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c index 5f6b2478bf17..fa6bf5279d28 100644 --- a/drivers/base/regmap/regmap-i2c.c +++ b/drivers/base/regmap/regmap-i2c.c @@ -42,7 +42,7 @@ static int regmap_i2c_gather_write(void *context, /* If the I2C controller can't do a gather tell the core, it * will substitute in a linear write for us. */ - if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_PROTOCOL_MANGLING)) + if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_NOSTART)) return -ENOTSUPP; xfer[0].addr = i2c->addr; |