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fix I2C slave addressing 

With the recent device handling changes the I2C slave addressing code
was broken. With current code, if a slave with the correct address is

not found on the bus the last scanned slave on the bus will be
addressed. This is wrong. Please find attached a patch to fix it.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Acked-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Juha Riihimäki 2009-06-08 09:27:19 +03:00 committed by Aurelien Jarno
parent 51954d565f
commit b3a219883e
1 changed files with 4 additions and 2 deletions
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6
hw/i2c.c
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@ -85,10 +85,12 @@ int i2c_start_transfer(i2c_bus *bus, uint8_t address, int recv)
i2c_slave *slave = NULL;
QLIST_FOREACH(qdev, &bus->qbus.children, sibling) {
slave = I2C_SLAVE_FROM_QDEV(qdev);
if (slave->address == address)
i2c_slave *candidate = I2C_SLAVE_FROM_QDEV(qdev);
if (candidate->address == address) {
slave = candidate;
break;
}
}
if (!slave)
return 1;