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i2c: lpc32xx: fix read timeout

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Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_read" 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 13:37:38 -04:00 • committed by Tom Rini
parent b395a996a6
commit 3d2b6a2e5f
1 changed files with 5 additions and 5 deletions
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10
drivers/i2c/lpc32xx_i2c.c
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@ -172,12 +172,12 @@ static int lpc32xx_i2c_read(struct i2c_adapter *adap, u8 dev, uint addr,
*(data++) = readl(&i2c->rx);
}
}
/* wait for end of transation */
while (!((stat = readl(&i2c->stat)) & LPC32XX_I2C_STAT_TDI))
;
/* clear end-of-transaction flag */
writel(1, &i2c->stat);
}
/* wait for end of transation */
while (!((stat = readl(&i2c->stat)) & LPC32XX_I2C_STAT_TDI))
;
/* clear end-of-transaction flag */
writel(1, &i2c->stat);
/* success */
return 0;
}