linux-kernel - Re: [-mm patch 1/4] GPIO framework for AVR32

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Date:	Tue, 7 Nov 2006 13:10:14 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Haavard Skinnemoen <hskinnemoen@...el.com>
Cc:	David Brownell <david-b@...bell.net>,
	Andrew Victor <andrew@...people.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [-mm patch 1/4] GPIO framework for AVR32

On Tue, 7 Nov 2006 12:27:15 +0100
Haavard Skinnemoen <hskinnemoen@...el.com> wrote:

> Add a simple GPIO framework for AVR32. This should be fairly similar
> to the AT91 GPIO API, but there are still a couple of differences:
> 
>   * Naming. We prefix all functions with gpio_ instead of at91_
>   * request_gpio() and free_gpio() should be called to make sure
>     the required pins are available, but it will still work if you
>     don't.

+EXPORT_SYMBOL(request_gpio);
+EXPORT_SYMBOL(free_gpio);
+EXPORT_SYMBOL(gpio_set_value);
+EXPORT_SYMBOL(gpio_get_value);
+EXPORT_SYMBOL(gpio_set_output_enable);
+EXPORT_SYMBOL(gpio_set_pullup_enable);

I wonder about this naming choice.  I'd have though that if/when the kernel
gets a generic GPIO driver or layer, these avr32-specific symbols will need
renaming.

h8300 uses h8300_free_gpio(), and there's also omap_free_gpio().  Perhaps
this patch should have added avr32_free_gpio()?

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