Re: [U-Boot] [PATCH 3/6] i2c: fsl_i2c: i2c_read(): dont try to write address w/ alen=0

On Mon, Apr 22, 2013 at 8:06 AM, Dirk Eibach eibach@gdsys.de wrote:

diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c index 1c7265d..276386d 100644 --- a/drivers/i2c/fsl_i2c.c +++ b/drivers/i2c/fsl_i2c.c @@ -383,13 +383,16 @@ i2c_read(u8 dev, uint addr, int alen, u8 *data, int length) int i = -1; /* signal error */ u8 *a = (u8*)&addr;

•   if (i2c_wait4bus() >= 0
  

•   if (i2c_wait4bus() < 0)
  

•           return -1;
  

Can you return a more descriptive error code here?