i2c: lpc32xx: fix write timeout

Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_write" when parameters alen = 0 and len = 0.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
This commit is contained in:
Sylvain Lemieux 2015-07-27 13:37:39 -04:00 committed by Tom Rini
parent 3d2b6a2e5f
commit 58243001a9

View File

@ -200,6 +200,8 @@ static int lpc32xx_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr,
if (alen | length)
/* Address slave in write mode */
writel((dev<<1) | LPC32XX_I2C_TX_START, &i2c->tx);
else
return 0;
/* write address bytes */
while (alen) {
/* wait for transmit fifo not full */