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i2c: Add SCCB support

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SCCB is a serial communication bus developed by Omnivision. Its 2-wire
mode is very similar to SMBus byte data transactions, but requires the
controller to ignore the ACK bit and to insert a stop condition after
each message.

Add a device SCCB flag and a message stop flag to be passed to
controller drivers.

[JD: Kill rogue definition in go7007 driver.]

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Laurent Pinchart
2012-07-24 14:13:59 +02:00
committed by Jean Delvare
parent 68a7602f09
commit d47726c521
3 changed files with 4 additions and 6 deletions
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2
drivers/i2c/i2c-core.c
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@@ -2122,7 +2122,7 @@ s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
int try;
s32 res;
flags &= I2C_M_TEN | I2C_CLIENT_PEC;
flags &= I2C_M_TEN | I2C_CLIENT_PEC | I2C_CLIENT_SCCB;
if (adapter->algo->smbus_xfer) {
i2c_lock_adapter(adapter);