[U-Boot] [PATCH] gpio: mxc_gpio: Fix gpio_get_value() when the GPIO is an output

[Fabio Estevam]

Hi Benoît,

On Sun, Sep 29, 2013 at 3:50 PM, Benoît Thébaudeau
<benoit.thebaudeau at advansee.com> wrote:

> Can you test again without any GPIO patch, but with SION set for this pin in the
> IOMUXC? According to the reference manual, SION not being set in the IOMUXC is
> the only reason that would prevent PSR from reading the pin level in GPIO output
> mode.

Yes, from the feedback from a colleague the SION bit plays a role here:

"The RM does not describe this clear. The fact should be:

PSR for input, DR for output.
PSR can be for output only when SION bit is set (now PSR = DR). "

Regards,

Fabio Estevam