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From: w.sang@pengutronix.de (Wolfram Sang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 7/7] ARM: mxs/mx28evk: add mmc device
Date: Mon, 14 Feb 2011 11:26:46 +0100	[thread overview]
Message-ID: <20110214102646.GB30100@pengutronix.de> (raw)
In-Reply-To: <1297650746-12841-8-git-send-email-shawn.guo@freescale.com>

Shawn,

> +/* mmc */
> +static void __init mx28evk_mmc_slot_poweron(int gpio)
> +{
> +	int ret;
> +
> +	ret = gpio_request(gpio, "mmc-slot-power");
> +	if (ret) {
> +		pr_err("Failed to request gpio mmc-slot-power: %d\n", ret);
> +		return;
> +	}
> +
> +	ret = gpio_direction_output(gpio, 0);
> +	if (ret) {
> +		pr_err("Failed to drive gpio mmc-slot-power: %d\n", ret);
> +		return;
> +	}
> +}

Minor nit: You could use gpio_request_one(), and doing so maybe even get rid of
this function and simply do it the init-function. The advantage would be, that
you can name the two GPIOs independently.

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

  reply	other threads:[~2011-02-14 10:26 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-14  2:32 [PATCH v2 0/7] Add mmc driver for i.MX23/28 Shawn Guo
2011-02-14  2:32 ` [PATCH v2 1/7] mmc: mxs-mmc: add mmc host " Shawn Guo
2011-02-13 19:26   ` Chris Ball
2011-02-13 22:35     ` Arnd Bergmann
2011-02-14  0:25       ` Chris Ball
2011-02-15 21:27       ` Shawn Guo
2011-02-15 21:26     ` Shawn Guo
2011-02-14 15:39   ` Wolfram Sang
2011-02-15 21:28     ` Shawn Guo
2011-02-14 16:59   ` Wolfram Sang
2011-02-15 22:39     ` Shawn Guo
2011-02-15 17:13       ` Wolfram Sang
2011-02-15 17:19         ` Russell King - ARM Linux
2011-02-15 17:29           ` Wolfram Sang
2011-02-15 17:32             ` Russell King - ARM Linux
2011-02-16 20:28             ` Shawn Guo
2011-02-16 15:33               ` Wolfram Sang
2011-02-17  4:17                 ` Shawn Guo
2011-02-17 12:06                   ` Wolfram Sang
2011-02-16 15:59               ` Arnd Bergmann
2011-02-17  2:44                 ` Shawn Guo
2011-02-14 16:59   ` Russell King - ARM Linux
2011-02-15 22:03     ` Shawn Guo
2011-02-15 14:13       ` Russell King - ARM Linux
2011-02-14  2:32 ` [PATCH v2 2/7] ARM: mxs/clock: fix base address missing in name##_set_parent Shawn Guo
2011-02-14  2:32 ` [PATCH v2 3/7] ARM: mxs: make ssp error irq definition consistent Shawn Guo
2011-02-14  2:32 ` [PATCH v2 4/7] ARM: mxs: dynamically allocate mmc device Shawn Guo
2011-02-14  2:32 ` [PATCH v2 5/7] ARM: mxs: fix typo "GPO" in iomux-mx23.h Shawn Guo
2011-02-14  2:32 ` [PATCH v2 6/7] ARM: mxs/mx23evk: add mmc device Shawn Guo
2011-02-14  2:32 ` [PATCH v2 7/7] ARM: mxs/mx28evk: " Shawn Guo
2011-02-14 10:26   ` Wolfram Sang [this message]
2011-02-15 23:11     ` Shawn Guo

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