linux-kernel - Re: [PATCH 2/2] omap: define _toggle_gpio_edge

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Date:	Mon, 25 Jan 2010 10:22:18 -0800
From:	Kevin Hilman <khilman@...prootsystems.com>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	"Zebediah C. McClure" <zmc@...ian.net>,
	Alistair Buxton <a.j.buxton@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] omap: define _toggle_gpio_edge_triggering only for OMAP1

Uwe Kleine-König <u.kleine-koenig@...gutronix.de> writes:

> The only usage of _toggle_gpio_edge_triggering is in an
> CONFIG_ARCH_OMAP1 is defined, too.
>
> This fixes a compiler warning:
>
> 	arch/arm/plat-omap/gpio.c:758: warning: '_toggle_gpio_edge_triggering' defined but not used
>
> when compiling for ARCH_OMAP2, ARCH_OMAP3 or ARCH_OMAP4.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Acked-by: Kevin Hilman <khilman@...prootsystems.com>

> ---
>  arch/arm/plat-omap/gpio.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
> index d17620c..d2422c7 100644
> --- a/arch/arm/plat-omap/gpio.c
> +++ b/arch/arm/plat-omap/gpio.c
> @@ -750,6 +750,7 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
>  }
>  #endif
>  
> +#ifdef CONFIG_ARCH_OMAP1
>  /*
>   * This only applies to chips that can't do both rising and falling edge
>   * detection at once.  For all other chips, this function is a noop.
> @@ -760,11 +761,9 @@ static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
>  	u32 l = 0;
>  
>  	switch (bank->method) {
> -#ifdef CONFIG_ARCH_OMAP1
>  	case METHOD_MPUIO:
>  		reg += OMAP_MPUIO_GPIO_INT_EDGE;
>  		break;
> -#endif
>  #ifdef CONFIG_ARCH_OMAP15XX
>  	case METHOD_GPIO_1510:
>  		reg += OMAP1510_GPIO_INT_CONTROL;
> @@ -787,6 +786,7 @@ static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
>  
>  	__raw_writel(l, reg);
>  }
> +#endif
>  
>  static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
>  {
> -- 
> 1.6.6
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