linux-kernel - Re: [PATCH 6/6] atmel-mci: Platform driver MMC slot power control

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Date:	Wed, 17 Jun 2009 13:23:12 +1200
From:	Ryan Mallon <ryan@...ewatersys.com>
To:	Rob Emanuele <rob@...nuele.us>
CC:	nicolas.ferre@...el.com, haavard.skinnemoen@...el.com,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] atmel-mci: Platform driver MMC slot power control

Rob Emanuele wrote:
> Add support to the at91sam9g20ek_2mmc platform (board-sam9g20ek-2slot-mmc.c) and support files for a VCC pin using the atmel-mci driver.
> 
> Signed-off-by: Rob Emanuele <rob@...nuele.us>
> ---
>  arch/arm/mach-at91/at91sam9260_devices.c       |    2 ++
>  arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c |    3 +++
>  2 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
> index c372f4f..7634632 100644
> --- a/arch/arm/mach-at91/at91sam9260_devices.c
> +++ b/arch/arm/mach-at91/at91sam9260_devices.c
> @@ -328,6 +328,8 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
>  			}
>  			if (data->slot[i].wp_pin)
>  				at91_set_gpio_input(data->slot[i].wp_pin, 1);
> +			if (data->slot[i].vcc_pin)
> +				at91_set_gpio_output(data->slot[i].vcc_pin, 0);
>  

Can use gpio_direction_output on these.

~Ryan

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