[PATCH 1/2] gpio/generic: initialize basic_mmio_gpio shadow variables properly

[H Hartley Sweeten]

On Thursday, May 17, 2012 12:35 AM, Shawn Guo wrote:
> It fixes the issue in gpio-generic that commit fb14921 (gpio/mxc: add
> missing initialization of basic_mmio_gpio shadow variables) manged to
> fix in gpio-mxc driver, so that other platform specific drivers do not
> suffer from the same problem over and over again.
>
> Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> ---
>  drivers/gpio/gpio-generic.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
> index e38dd0c..cfc9439 100644
> --- a/drivers/gpio/gpio-generic.c
> +++ b/drivers/gpio/gpio-generic.c
> @@ -394,6 +394,10 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
>  		return ret;
>  
>  	bgc->data = bgc->read_reg(bgc->reg_dat);
> +	if (bgc->gc.set == bgpio_set_set)
> +		bgc->data = bgc->read_reg(bgc->reg_set);
> +	if (bgc->reg_dir)
> +		bgc->dir = bgc->read_reg(bgc->reg_dir);
>  
>  	return ret;
>  }

This change is fine for ep93xx.

Acked-by: H Hartley Sweeten <hsweeten at visionengravers.com>