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From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/5] mx53loco: Use gpio_direction_input prior to gpio_get_value
Date: Wed, 08 Feb 2012 14:08:56 +0100	[thread overview]
Message-ID: <4F3273E8.9040003@denx.de> (raw)
In-Reply-To: <1328704485-1505-1-git-send-email-festevam@gmail.com>

On 08/02/2012 13:34, Fabio Estevam wrote:
> Use gpio_direction_input prior to gpio_get_value.
> 
> Cc: Jason Liu <r64343@freescale.com>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
>  board/freescale/mx53loco/mx53loco.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 

Hi Fabio,

> diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c
> index e6345e7..c2c26f0 100644
> --- a/board/freescale/mx53loco/mx53loco.c
> +++ b/board/freescale/mx53loco/mx53loco.c
> @@ -153,7 +153,9 @@ int board_mmc_getcd(struct mmc *mmc)
>  	int ret;
>  
>  	mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
> +	gpio_direction_input(75);
>  	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
> +	gpio_direction_input(77);
>  

The patch makes clear that the GPIO is configured as input. However,
after a reset all GPIOs in the MX53 are configured as input. Do we need
such changes ?

Stefano

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  parent reply	other threads:[~2012-02-08 13:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-08 12:34 [U-Boot] [PATCH 1/5] mx53loco: Use gpio_direction_input prior to gpio_get_value Fabio Estevam
2012-02-08 12:34 ` [U-Boot] [PATCH 2/5] mx53ard: " Fabio Estevam
2012-02-09 16:58   ` Stefano Babic
2012-02-08 12:34 ` [U-Boot] [PATCH 3/5] mx53evk: " Fabio Estevam
2012-02-09  2:30   ` Jason Liu
2012-02-09 16:58   ` Stefano Babic
2012-02-08 12:34 ` [U-Boot] [PATCH 4/5] mx53smd: " Fabio Estevam
2012-02-09 16:58   ` Stefano Babic
2012-02-08 12:34 ` [U-Boot] [PATCH 5/5] mx51evk: " Fabio Estevam
2012-02-09 16:58   ` Stefano Babic
2012-02-08 13:08 ` Stefano Babic [this message]
2012-02-08 13:14   ` [U-Boot] [PATCH 1/5] mx53loco: " Fabio Estevam
2012-02-08 13:17     ` Stefano Babic
2012-02-09  2:30 ` Jason Liu
2012-02-09 16:58 ` Stefano Babic

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