[U-Boot] [PATCH V2 01/25] mxc_i2c: fix i2c_imx_stop

Marek Vasut marex at denx.de
Fri Jul 6 19:46:26 CEST 2012


Dear Troy Kisky,

> On 7/5/2012 11:50 PM, Marek Vasut wrote:
> > Dear Troy Kisky,
> > 
> >> On 7/5/2012 12:53 PM, Troy Kisky wrote:
> >>> Instead of clearing 2 bits, all the other
> >>> bits were set because '|=' was used instead
> >>> of '&='.
> >>> 
> >>> Signed-off-by: Troy Kisky <troy.kisky at boundarydevices.com>
> >>> Acked-by: Marek Vasut <marex at denx.de>
> >>> Acked-by: Stefano Babic <sbabic at denx.de>
> >>> 
> >>> ---
> >>> V2: add acks
> >>> ---
> >>> 
> >>>    drivers/i2c/mxc_i2c.c |    2 +-
> >>>    1 file changed, 1 insertion(+), 1 deletion(-)
> >>> 
> >>> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> >>> index fc68062..c0c45fd 100644
> >>> --- a/drivers/i2c/mxc_i2c.c
> >>> +++ b/drivers/i2c/mxc_i2c.c
> >>> @@ -264,7 +264,7 @@ void i2c_imx_stop(void)
> >>> 
> >>>    	/* Stop I2C transaction */
> >>>    	temp = readb(&i2c_regs->i2cr);
> >>> 
> >>> -	temp |= ~(I2CR_MSTA | I2CR_MTX);
> >>> +	temp &= ~(I2CR_MSTA | I2CR_MTX);
> >>> 
> >>>    	writeb(temp, &i2c_regs->i2cr);
> >>>    	
> >>>    	i2c_imx_bus_busy(0);
> >> 
> >> This series was tested on a sabrelite and a i.mx51 board
> > 
> > Sigh, I should test it on the efikamx board. It has some i2c chip that's
> > hard to talk to since it's quite sensitive to the behavior of the bus.
> > But since I'm dead busy now, I'll just trust you. I'm glad you found it,
> > Troy :)
> 
> I'd rather have your verification than trust :-)
> Thanks for the reviews.

Hmm, lemme see.

> Troy

Best regards,
Marek Vasut


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