[U-Boot] [PATCH 5/7] i2c: lpc32xx: fix read timeout

From: Sylvain Lemieux slemieux@tycoint.com
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 --- drivers/i2c/lpc32xx_i2c.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/i2c/lpc32xx_i2c.c b/drivers/i2c/lpc32xx_i2c.c index 98106fa..4c66769 100644 --- a/drivers/i2c/lpc32xx_i2c.c +++ b/drivers/i2c/lpc32xx_i2c.c @@ -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; }

On Mon, Jul 27, 2015 at 01:37:38PM -0400, slemieux.tyco@gmail.com wrote:
From: Sylvain Lemieux slemieux@tycoint.com
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
Applied to u-boot/master, thanks!
participants (2)
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slemieux.tyco@gmail.com
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Tom Rini