[U-Boot] [U-Boot, v2, 1/1] gpio: lpc32xx: fix issues with port3 gpio

[Tom Rini]

On Wed, Sep 09, 2015 at 11:35:58AM -0400, slemieux.tyco at gmail.com wrote:

> From: Sylvain Lemieux <slemieux at tycoint.com>
> 
> The current simplify lpc32xx gpio driver implementation assume a
> maximum of 32 GPIO per port; there are a total of 22 GPI, 24 GPO
> and 6 GPIO to managed on port 3.
> 
> Update the driver to fix the following:
> 1) When requesting GPI_xx and GPO_xx on port 3 (xx is the same number)
>    the second call to "gpio_request" will return -EBUSY.
> 
> 2) The status of GPO_xx pin report the status of the
>    corresponding GPI_xx pin when using the "gpio status" command.
> 
> 3) The gpio driver may setup the direction register for the wrong
>    gpio when calling "gpio_direction_input" (GPI_xx) or
>    "gpio_direction_output" (GPO_xx) on port 3; the call to the
>    direction is require to use the "gpio status" command.
> 
> The following change were done in the driver:
> 1) port3 GPI are cache in a separate 32 bits in the array.
> 2) port3 direction register written only for GPIO pins.
> 3) port3 GPO & GPIO (as output) are read using "p3_outp_state".
> 4) LPC32XX_GPI_P3_GRP updated to match the change.
> 
> Signed-off-by: Sylvain Lemieux <slemieux at tycoint.com>

Applied to u-boot/master, thanks!

-- 
Tom
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