* Enric Balletbo i Serra <[email protected]> [101001 12:37]:
> GPIO for various devices are missing from the board initialization.
> This patch adds support for the VBUS and over current gpios.  Without this
> patch, input/outputs from these two sources are ignored.
> 
> Signed-off-by: Enric Balletbo i Serra <[email protected]>
> ---
>  arch/arm/mach-omap2/board-igep0020.c |   14 ++++++++++++++
>  1 files changed, 14 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/board-igep0020.c 
> b/arch/arm/mach-omap2/board-igep0020.c
> index 175f043..1052a63 100644
> --- a/arch/arm/mach-omap2/board-igep0020.c
> +++ b/arch/arm/mach-omap2/board-igep0020.c
> @@ -274,6 +274,20 @@ static int igep2_twl_gpio_setup(struct device *dev,
>       igep2_vmmc1_supply.dev = mmc[0].dev;
>       igep2_vmmc2_supply.dev = mmc[1].dev;
>  
> +     /*
> +      * REVISIT: need ehci-omap hooks for external VBUS
> +      * power switch and overcurrent detect
> +      */
> +     gpio_request(gpio + 1, "GPIO_EHCI_NOC");
> +     gpio_direction_input(gpio + 1);
> +
> +     /*
> +      * TWL4030_GPIO_MAX + 0 == ledA, GPIO_USBH_CPEN
> +      * (out, active low)
> +      */
> +     gpio_request(gpio + TWL4030_GPIO_MAX, 0);
> +     gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
> +
>       return 0;
>  };

Please check the result value.. gpio_request can fail.

Tony
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