From: Marc Pignat <marc.pignat@hevs.ch>
To: linux-arm-kernel@lists.arm.linux.org.uk
Cc: Rob Emanuele <rob@emanuele.us>,
nicolas.ferre@atmel.com, haavard.skinnemoen@atmel.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/6] atmel-mci: Power control option for each MMC Slot
Date: Wed, 17 Jun 2009 10:08:57 +0200 [thread overview]
Message-ID: <200906171008.58382.marc.pignat@hevs.ch> (raw)
In-Reply-To: <1245200079-6323-5-git-send-email-rob@emanuele.us>
Hi!
On Wednesday 17 June 2009 02:54:38 Rob Emanuele wrote:
> Add support to the atmel-mci driver for a VCC pin in order to conserve power by removing power from an MMC Slot.
...
> @@ -1544,6 +1544,13 @@ static int __init atmci_init_slot(struct atmel_mci *host,
> }
> }
>
> + if (gpio_is_valid(slot->vcc_pin)) {
> + if (gpio_request(slot->vcc_pin, "mmc_pow")) {
gpio_request will check for "gpio_is_valid" so this is not necessary.
> + dev_dbg(&mmc->class_dev, "no power pin available\n");
> + slot->vcc_pin = -EBUSY;
> + }
> + }
> +
...
Best regards
Marc
next prev parent reply other threads:[~2009-06-17 8:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-17 0:54 [PATCH 1/6] atmel-mci: Unified Atmel MCI drivers (AVR32 & AT91) Rob Emanuele
2009-06-17 0:54 ` [PATCH 2/6] atmel-mci: Platform configuration to the the atmel-mci driver Rob Emanuele
2009-06-17 10:27 ` Nicolas Ferre
2009-06-18 19:58 ` Andrew Victor
2009-06-18 20:00 ` Andrew Victor
2009-06-17 0:54 ` [PATCH 3/6] atmel-mci: Optional controller reset before every command Rob Emanuele
2009-06-17 8:32 ` Marc Pignat
2009-06-17 18:27 ` Robert Emanuele
2009-06-17 0:54 ` [PATCH 4/6] atmel-mci: CLKDIV cap to restrict the MCI controller speed Rob Emanuele
2009-06-17 0:54 ` [PATCH 5/6] atmel-mci: Power control option for each MMC Slot Rob Emanuele
2009-06-17 8:08 ` Marc Pignat [this message]
2009-06-17 0:54 ` [PATCH 6/6] atmel-mci: Platform driver MMC slot power control Rob Emanuele
2009-06-17 1:23 ` Ryan Mallon
2009-06-17 9:56 ` [PATCH 1/6] atmel-mci: Unified Atmel MCI drivers (AVR32 & AT91) Nicolas Ferre
2009-06-17 10:08 ` Haavard Skinnemoen
2009-06-23 16:28 ` Nicolas Ferre
[not found] ` <95818a17c2b96d3769f4e1d3de26208647111758.1245778411.git.nicolas.ferre@atmel.com>
2009-06-23 17:39 ` [PATCH 1/2] " Nicolas Ferre
2009-09-02 7:31 ` Haavard Skinnemoen
[not found] ` <f8889fb59887a970581697beb313363a6a065606.1245778411.git.nicolas.ferre@atmel.com>
2009-06-23 17:39 ` [PATCH 2/2] AT91: atmel-mci: Platform configuration to the the atmel-mci driver Nicolas Ferre
2009-06-23 21:36 ` Jean-Christophe PLAGNIOL-VILLARD
2009-06-26 19:26 ` Robert Emanuele
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